FCC Regulation Document

Part: 
Topic: C

47 CFR Part 101 (up to date as of 2/20/2024)
                                                                           47 CFR Part 101 (Feb. 20, 2024)
Fixed Microwave Services

This content is from the eCFR and is authoritative but unofficial.

Title 47 —Telecommunication
Chapter I —Federal Communications Commission
Subchapter D —Safety and Special Radio Services

Part 101 Fixed Microwave Services
  Subpart A General
      § 101.1 Scope and authority.
      § 101.3 Definitions.
  Subpart B Applications and Licenses
      General Filing Requirements
         § 101.4 Transition plan.
         § 101.5 Station authorization required.
         § 101.7 Eligibility for station license.
         § 101.17 [Reserved]
         § 101.21 Technical content of applications.
         § 101.23 Waiver of rules.
         § 101.31 Temporary and conditional authorizations.
      Processing of Applications
         § 101.45 Mutually exclusive applications.
         § 101.51 Comparative evaluation of mutually exclusive applications.
      License Transfers, Modifications, Conditions and Forfeitures
         § 101.55 Considerations involving transfer or assignment applications.
         § 101.56 [Reserved]
         § 101.61 Certain modifications not requiring prior authorization in the Local Multipoint
                    Distribution Service and 24 GHz Service
         § 101.63 Period of construction; certification of completion of construction.
         § 101.64 Service areas.
         § 101.65 Termination of station authorizations.
         § 101.67 License period.
         § 101.69 Transition of the 1850–1990 MHz, 2110–2150 MHz, and 2160–2200 MHz bands
                    from the fixed microwave services to personal communications services and
                    emerging technologies.
         § 101.71 [Reserved]
         § 101.73 Mandatory negotiations.
         § 101.75 Involuntary relocation procedures.
         § 101.77 Public safety licensees in the 1850–1990 MHz, 2110–2150 MHz, and 2160–2200
                    MHz bands.

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                                                                          47 CFR Part 101 (Feb. 20, 2024)
Fixed Microwave Services

        § 101.79 Sunset provisions for licensees in the 1850–1990 MHz, 2110–2150 MHz, and
                  2160–2200 MHz bands.
        § 101.81 Future licensing in the 1850–1990 MHz, 2110–2150 MHz, and 2160–2200 MHz
                  bands.
        § 101.82 Reimbursement and relocation expenses in the 2110–2150 MHz and 2160–2200
                  MHz bands.
     Policies Governing Fixed Service Relocation From the 18.58–19.30
     GHz Band
        § 101.83 Modification of station license.
        § 101.85 Transition of the 18.3–19.3 GHz band from the terrestrial fixed services to the
                  fixed-satellite service (FSS).
        § 101.89 Negotiations.
        § 101.91 Involuntary relocation procedures.
        § 101.95 Sunset provisions for licensees in the 18.30–19.30 GHz band.
        § 101.97 Future licensing in the 18.30–19.30 GHz band.
   Subpart C Technical Standards
     § 101.101 Frequency availability.
     § 101.103 Frequency coordination procedures.
     § 101.105 Interference protection criteria.
     § 101.107 Frequency tolerance.
     § 101.109 Bandwidth.
     § 101.111 Emission limitations.
     § 101.113 Transmitter power limitations.
     § 101.115 Directional antennas.
     § 101.117 Antenna polarization.
     § 101.119 Simultaneous use of common antenna structures.
     § 101.125 Temporary fixed antenna height restrictions.
     § 101.129 Transmitter location.
     § 101.131 Transmitter construction and installation.
     § 101.133 Limitations on use of transmitters.
     § 101.135 Shared use of radio stations and the offering of private carrier service.
     § 101.137 Interconnection of private operational fixed point-to-point microwave stations.
     § 101.139 Authorization of transmitters.
     § 101.141 Microwave modulation.
     § 101.143 Minimum path length requirements.
     § 101.145 Interference to geostationary-satellites.
     § 101.147 Frequency assignments.
     § 101.149 [Reserved]
     § 101.151 Use of signal boosters.

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                                                                              47 CFR Part 101 (Feb. 20, 2024)
Fixed Microwave Services

   Subpart D Operational Requirements
     § 101.201 Station inspection.
     § 101.203 Communications concerning safety of life and property.
     § 101.205 Operation during emergency.
     § 101.207 Suspension of transmission.
     § 101.209 Operation of stations at temporary fixed locations for communication between the
                 United States and Canada or Mexico.
     § 101.211 Operator requirements.
     § 101.213 Station identification.
     § 101.215 Posting of station authorization and transmitter identification cards, plates, or signs.
     § 101.217 Station records.
   Subpart E Miscellaneous Common Carrier Provisions
     § 101.301 National defense; free service.
     § 101.303 Answers to notices of violation.
     § 101.305 Discontinuance, reduction or impairment of service.
     § 101.307 Tariffs, reports, and other material required to be submitted to the Commission.
     § 101.309 Requirement that licensees respond to official communications.
     § 101.311 Equal employment opportunities.
   Subpart F [Reserved]
   Subpart G 24 GHz Service and Digital Electronic Message Service
     § 101.501 Eligibility.
     § 101.503 Digital Electronic Message Service Nodal Stations.
     § 101.505 Frequencies.
     § 101.507 Frequency stability.
     § 101.509 Interference protection criteria.
     § 101.511 Permissible services.
     § 101.513 Transmitter power.
     § 101.515 Emissions and bandwidth.
     § 101.517 Antennas.
     § 101.519 Interconnection.
     § 101.521 Spectrum utilization.
     § 101.523 Service areas.
     § 101.525 24 GHz system operations.
     § 101.526 License term.
     § 101.527 Construction requirements for 24 GHz operations.
     § 101.531 [Reserved]
     § 101.533 Regulatory status.
     § 101.535 Geographic partitioning and spectrum aggregation/disaggregation.
     § 101.537 24 GHz band subject to competitive bidding.

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Fixed Microwave Services

     § 101.538 Designated entities.
   Subpart H Private Operational Fixed Point-to-Point Microwave Service
     § 101.601 Eligibility.
     § 101.603 Permissible communications.
   Subpart I Common Carrier Fixed Point-to-Point Microwave Service
     § 101.701 Eligibility.
     § 101.703 Permissible communications.
     § 101.705 Special showing for renewal of common carrier station facilities using frequency
                diversity.
   Subpart J Local Television Transmission Service
     § 101.801 Eligibility.
     § 101.803 Frequencies.
     § 101.805 Assignment of frequencies to mobile stations.
     § 101.807 Transmitter power.
     § 101.809 Bandwidth and emission limitations.
     § 101.811 Modulation requirements.
     § 101.813 Remote control operation of mobile television pickup stations.
     § 101.815 Stations at temporary fixed locations.
     § 101.817 Notification of station operation at temporary locations.
     § 101.819 Stations affected by coordination contour procedures.
   Subpart K [Reserved]
   Subpart L Local Multipoint Distribution Service
     § 101.1001 Eligibility.
     § 101.1005 Frequencies available.
     § 101.1007 Geographic service areas and number of licenses.
     § 101.1009 System operations.
     § 101.1011 Construction requirements.
     § 101.1013 Permissible communications services.
     § 101.1017 Requesting regulatory status.
   Subpart M Competitive Bidding Procedures for LMDS
     § 101.1101 LMDS service subject to competitive bidding.
     §§ 101.1102-101.1105 [Reserved]
     § 101.1107 Bidding credits for very small businesses, small businesses and entrepreneurs.
     § 101.1109 Records maintenance.
     § 101.1111 Partitioning and disaggregation.
     § 101.1112 Definitions.
   Subpart N [Reserved]

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                                                                          47 CFR Part 101 (Feb. 20, 2024)
Fixed Microwave Services

   Subpart O Multiple Address Systems
     General Provisions
        § 101.1301 Scope.
        § 101.1303 Eligibility.
        § 101.1305 Private internal service.
        § 101.1307 Permissible communications.
        § 101.1309 Regulatory status.
     System License Requirements
        § 101.1311 Initial EA license authorization.
        § 101.1313 License term.
        § 101.1315 Service areas.
        § 101.1317 Competitive bidding procedures for mutually exclusive MAS EA applications.
        § 101.1319 Competitive bidding provisions.
        § 101.1321 License transfers.
        § 101.1323 Spectrum aggregation, disaggregation, and partitioning.
     System Requirements
        § 101.1325 Construction requirements.
        § 101.1329 EA Station license, location, modifications.
        § 101.1331 Treatment of incumbents.
        § 101.1333 Interference protection criteria.
   Subpart P Multichannel Video Distribution and Data Service Rules for the
               12.2–12.7 GHz Band
     § 101.1401 Service areas.
     § 101.1403 Broadcast carriage requirements.
     § 101.1405 Channeling plan.
     § 101.1407 Permissible operations for MVDDS.
     § 101.1409 Treatment of incumbent licensees.
     § 101.1411 Regulatory status and eligibility.
     § 101.1412 MVDDS eligibility restrictions for cable operators.
     § 101.1413 License term and construction requirements.
     § 101.1415 Partitioning and disaggregation.
     § 101.1417 Annual report.
     § 101.1421 Coordination of adjacent area MVDDS stations.
     § 101.1423 Canadian and Mexican coordination.
     § 101.1425 RF exposure.
     § 101.1427 MVDDS licenses subject to competitive bidding.
     § 101.1429 Designated entities.
     § 101.1440 MVDDS protection of DBS.
   Subpart Q Service and Technical Rules for the 70/80/90 GHz Bands

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Fixed Microwave Services

       § 101.1501 Service areas.
       § 101.1505 Segmentation plan.
       § 101.1507 Permissible operations.
       § 101.1511 Regulatory status and eligibility.
       § 101.1513 License term.
       § 101.1523 Sharing and coordination among non-government licensees and between non-
                  government and government services.
       § 101.1525 RF safety.
       § 101.1527 Canadian and Mexican coordination.

PART 101—FIXED MICROWAVE SERVICES
Authority: 47 U.S.C. 154, 303.

Source: 61 FR 26677, May 28, 1996, unless otherwise noted.

Subpart A—General
§ 101.1 Scope and authority.
     (a) Part 1 of the Commission's rules contains the general rules of practice and procedure applicable to
         proceedings before the Commission and for the filing of applications for radio station licenses in the fixed
         microwave services.

     (b) The purpose of the rules in this part is to prescribe the manner in which portions of the radio spectrum
         may be made available for private operational, common carrier, 24 GHz Service and Local Multipoint
         Distribution Service fixed, microwave operations that require transmitting facilities on land or in specified
         offshore coastal areas within the continental shelf.

     (c) The rules in this part are issued pursuant to the authority contained in Titles I through III of the
         Communications Act of 1934, as amended, which vest authority in the Federal Communications
         Commission to regulate common carriers of interstate and foreign communications, to regulate radio
         transmissions and issue licenses for radio stations, and to regulate all interstate and foreign
         communications by wire and radio necessary to the accomplishment of the purposes of the Act.

[61 FR 26677, May 28, 1996, as amended at 62 FR 23163, Apr. 29, 1997; 63 FR 68981, Dec. 14, 1998; 65 FR 59357, Oct. 5, 2000]

§ 101.3 Definitions.
As used in this part:

    24 GHz Service. A fixed point-to-point, point-to-multipoint, and multipoint-to-multipoint radio system in the
         24.25–24.45 GHz band and in the 25.05–25.25 GHz band consisting of a fixed main (nodal) station and a
         number of fixed user terminals. This service may encompass any digital fixed service.

    Antenna power gain. The ratio of the maximum radiation intensity to that of an isotropic (omnidirectional)
         radiator in the far field of its main (forward direction) lobe.

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47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                      47 CFR 101.3 “Antenna power input”
Fixed Microwave Services

    Antenna power input. The radio frequency peak or RMS power, as the case may be, supplied to the antenna from
         the antenna transmission line and its associated impedance matching network.

    Antenna structure. The antenna, its supporting structure and anything attached to it.

    Assigned frequency. The center of the frequency band assigned to a station.

    Assigned frequency bandwidth. The frequency band within which the emission of a station is authorized; the
          width of the band equals the necessary bandwidth plus twice the absolute value of the frequency
          tolerance.

    Authorized bandwidth. The maximum bandwidth authorized to be used by a station as specified in the station
          license. (See § 2.202 of this chapter)

    Authorized frequency. The frequency, or frequency range, assigned to a station by the Commission and specified
          in the instrument of authorization.

    Authorized power. The maximum power a station is permitted to use. This power is specified by the
          Commission in the station's authorization.

    Automatic Transmitter Power Control (ATPC). ATPC is a feature of a digital microwave radio system that adjusts
         the transmitter output power. ATPC allows the transmitter to operate at less than maximum power for
         most of the time. In a radio employing ATPC, the transmit power is reduced during normal operation
         conditions. When the receiver detects a reduction in signal level, a control signal is sent to the far end
         transmitter, instructing it to increase the power output to compensate for the signal reduction. The power
         output is limited to the licensed (maximum) transmit power. Guidelines for use of ATPC are set forth in
         the TIA Telecommunications Systems Bulletin TSB 10, “Interference Criteria for Microwave Systems (TSB
         10).”

    Bandwidth occupied by an emission. The band of frequencies comprising 99 percent of the total radiated power
         extended to include any discrete frequency on which the power is at least 0.25 percent of the total
         radiated power.

    Bit rate. The rate of transmission of information in binary (two state) form in bits per unit time.

    Carrier. In a frequency stabilized system, the sinusoidal component of a modulated wave whose frequency is
           independent of the modulating wave; or the output of a transmitter when the modulating wave is made
           zero; or a wave generated at a point in the transmitting system and subsequently modulated by the signal;
           or a wave generated locally at the receiving terminal which when combined with the side bands in a
           suitable detector, produces the modulating wave.

    Carrier frequency. The output of a transmitter when the modulating wave is made zero.

    Central office. A landline termination center used for switching and interconnection of public message
          communication circuits.

    Common carrier fixed point-to-point microwave service. A common carrier public radio service rendered on
        microwave frequencies by fixed and temporary fixed stations between points that lie within the United
        States or between points to its possessions or to points in Canada or Mexico.

    Communication common carrier. Any person engaged in rendering communication service for hire to the public.

    Contiguous United States. For the 3700–4200 MHz band, the contiguous United States consists of the
          contiguous 48 states and the District of Columbia as defined by Partial Economic Areas Nos. 1–41,
          43–211, 213–263, 265–297, 299–359, and 361–411, which includes areas within 12 nautical miles of the

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                                                                                               47 CFR 101.3 “Control point”
Fixed Microwave Services

           U.S. Gulf coastline (see § 27.6(m) of this chapter). In this context, the rest of the United States includes
           the Honolulu, Anchorage, Kodiak, Fairbanks, Juneau, Puerto Rico, Guam-Northern Mariana Islands, U.S.
           Virgin Islands, American Samoa, and the Gulf of Mexico PEAs (Nos. 42, 212, 264, 298, 360, 412–416).

    Control point. An operating position at which an operator responsible for the operation of the transmitter is
          stationed and which is under the control and supervision of the licensee.

    Control station. A fixed station, the transmissions of which are used to control automatically the emissions or
          operations of a radio station, or a remote base station transmitter.

    Coordination area. The area associated with a station outside of which another station sharing the same or
          adjacent frequency band neither causes nor is subject to interfering emissions greater than a permissible
          level.

    Coordination contour. The line enclosing the coordination area.

    Coordination distance. The distance on a given azimuth from a station beyond which another station neither
          causes nor is subject to interfering emissions greater than a permissible level.

    Digital Electronic Message Nodal Station. A fixed point-to-multipoint radio station in a Digital Electronic Message
           Service providing two-way communication with Digital Electronic Message User Stations.

    Digital Electronic Message Service. A two-way end-to-end fixed radio service utilizing digital termination systems
           for the exchange of digital information in the frequency bands 10,550–10,680 MHz, 18,820–18,920 MHz,
           and 19,160–19,260 MHz. This service may also make use of point-to-point microwave facilities, satellite
           facilities or other communications media to interconnect digital termination systems to comprise a
           network.

    Digital Electronic Message User Station. Any one of the fixed microwave radio stations located at users'
           premises, lying within the coverage area of a Digital Electronic Message Nodal Station, and providing two-
           way digital communications with the Digital Electronic Message Nodal Station.

    Digital modulation. The process by which some characteristic (frequency, phase, amplitude or combinations
           thereof) of a carrier frequency is varied in accordance with a digital signal, e.g., one consisting of coded
           pulses or states.

    Drop point. A term used in the point-to-point microwave radio service to designate a terminal point where
          service is rendered to a subscriber.

    Earth station. A station located either on the Earth's surface or within the major portion of Earth's atmosphere
          and intended for communication:

           (1) With one or more space stations; or

           (2) With one or more stations of the same kind by means of one or more reflecting satellites or other
               objects in space.

    Effective Radiated Power (ERP). The product of the power supplied to the antenna and its gain relative to a half-
           wave dipole in a given direction.

    Equivalent Isotropically Radiated Power (EIRP). The product of the power supplied to the antenna and the
          antenna gain in a given direction relative to an isotropic antenna.

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47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                  47 CFR 101.3 “Exchange”
Fixed Microwave Services

    Exchange. A unit of a communication company or companies for the administration of communication service
         in a specified area, which usually embraces a city, town, or village and its environs, and consisting of one
         or more central offices, together with the associated plant, used in furnishing communication service in
         that area.

    Exchange area. The geographic area included within the boundaries of an exchange.

    Fixed satellite earth station. An earth station intended to be used at a specified fixed point.

    Fixed relay station. A fixed station associated with one or more stations, established to receive radio signals
           directed to it and to retransmit them automatically on a fixed service frequency.

    Fixed service. A radio communications service between specified fixed points.

    Fixed station. A station in the fixed service.

    Frequency tolerance. The maximum permissible departure by the center frequency of the frequency band
          occupied by an emission from the assigned frequency or, by the characteristic frequency of an emission
          from the reference frequency.

           Note: The frequency tolerance is expressed as a percentage or in Hertzs.

    General communication. Two-way voice communication, through a base station, between:

           (1) A common carrier land mobile or airborne station and a landline telephone station connected to a
               public message landline telephone system;

           (2) Two common carrier land mobile stations;

           (3) Two common carrier airborne stations;

           (4) A common carrier land mobile station and a common carrier airborne station.

    Harmful interference. Interference that endangers the functioning of a radionavigation service or of other safety
         services or seriously degrades, obstructs or repeatedly interrupts a radiocommunication service operating
         in accordance with these regulations.

    Internodal link. A point-to-point communications link used to provide communications between nodal stations or
          to interconnect nodal stations to other communications media.

    Landing area. A landing area means any locality, either of land or water, including airports and intermediate
          landing fields, which is used, or approved for use for the landing and take-off of aircraft, whether or not
          facilities are provided for the shelter, servicing, or repair of aircraft, or for receiving or discharging
          passengers or cargo.

    Local Multipoint Distribution Service Backbone Link. A point-to-point radio service link in a Local Multipoint
          Distribution Service System that is used to interconnect Local Multipoint Distribution Service Hub Stations
          with each other or with the public switched telephone network.

    Local Multipoint Distribution Service Hub Station. A fixed point-to-point or point-to-multipoint radio station in a
          Local Multipoint Distribution Service System that provides one-way or two-way communication with Local
          Multipoint Distribution Service Subscriber Stations.

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47 CFR Part 101 (up to date as of 2/20/2024)                          47 CFR 101.3 “Local Multipoint Distribution Service
Fixed Microwave Services                                                                             Subscriber Station”

    Local Multipoint Distribution Service Subscriber Station. Any one of the fixed microwave radio stations located at
          users' premises, lying within the coverage area of a Local Multipoint Distribution Service Hub Station,
          capable of receiving one-way communications from or providing two-way communications with the Local
          Multipoint Distribution Service Hub Station.

    Local Multipoint Distribution Service System. A fixed point-to-point or point-to-multipoint radio system consisting
          of Local Multipoint Distribution Service Hub Stations and their associated Local Multipoint Distribution
          Service Subscriber Stations.

    Local television transmission service. A public radio communication service for the transmission of television
           material and related communications.

    Long haul system. A microwave system licensed under this part in which the longest radio circuit of tandem
          radio paths exceeds 402 kilometers.

    Master station. A station in a multiple address radio system that controls, activates or interrogates four or more
         remote stations. Master stations performing such functions may also receive transmissions from remote
         stations.

    Message center. The point at which messages from members of the public are accepted by the carrier for
         transmission to the addressee.

    Microwave frequencies. As used in this part, this term refers to frequencies of 890 MHz and above.

    Microwave link. A link is defined as a simplex communications circuit between two points utilizing a single
         frequency/polarization assignment. A duplex communications circuit would require two links, one link in
         each direction.

    Miscellaneous common carriers. Communications common carriers that are not engaged in the business of
          providing either a public landline message telephone service or public message telegraph service.

    Mobile earth station. An earth station intended to be used while in motion or during halts at unspecified points.

    Mobile service. A radio communication service between mobile and land stations or between mobile stations.

    Mobile station. A station in the mobile service intended to be used while in motion or during halts at unspecified
          points.

    Multichannel Video Distribution and Data Service (MVDDS). A fixed microwave service licensed in the 12.2–12.7
          GHz band that provides various wireless services. Mobile and aeronautical operations are prohibited.

    Multiple address system (MAS). A point-to-multipoint or point-to-point radio communications system used for
          either one-way or two-way transmissions that operates in the 928/952/956 MHz, the 928/959 MHz or the
          932/941 MHz bands in accordance with § 101.147.

    National Spatial Reference System. The National Spatial Reference System (NSRS) is the name given to all
          Geodetic Control information contained in the National Geodetic Survey (NGS) Data Base. This includes:
          A, B, First, Second, and Third Order horizontal and vertical control observed by NGS as well as data
          submitted by other agencies (i.e., USGS, BLM, States, Counties, Cities, and private surveying
          organizations).

    Necessary bandwidth. For a given class of emission, the width of the frequency band that is just sufficient to
         ensure the transmission of information at the rate and with the quality required under specified
         conditions. The necessary bandwidth may be calculated using the formulas in § 2.202 of this chapter.

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                                                                                             47 CFR 101.3 “Nodal station”
Fixed Microwave Services

    Nodal station. The central or controlling stations in a microwave radio system operating on point-to-multipoint or
          multipoint-to-multipoint frequencies with one or more user stations or internodal links.

    Occupied bandwidth. The width of a frequency bandwidth such that, below the lower and above the upper
         frequency limits, the mean powers emitted are each equal to a specified percentage, B/2 of the total
         mean power of a given emission. Unless otherwise specified by the CCIR for the appropriate class of
         emission, the value of B/2 should be taken as 0.5%.

           Note: The percentage of the total power outside the occupied bandwidth is represented by B.

    Operational fixed station. A private fixed station not open to public correspondence.

    Passive repeater. A re-radiation device associated with a transmitting/receiving antenna system that re-directs
          intercepted radiofrequency energy. For example, it may consist of reflector(s) or back-to-back parabolic or
          horn antennas.

    Path length. The total distance of a path from the transmit to the receive antenna, inclusive of all passive
           repeaters, if any.

    Payload capacity. The bit rate available for transmission of data over a radiocommunication system, excluding
          overhead data generated by the system.

    Periscope antenna system. An antenna system which involves the use of a passive reflector to deflect radiation
          from or to a directional transmitting or receiving antenna which is oriented vertically or near vertically.

    Prior coordination. A bilateral process conducted prior to filing applications which includes the distribution of
           the technical parameters of a proposed radio system to potentially affected parties for their evaluation
           and timely response.

    Private carrier. An entity licensed in the private service and authorized to provide communications service to
           other private service eligibles on a commercial basis.

    Private line service. A service whereby facilities for communication between two or more designated points are
           set aside for the exclusive use or availability for use of a particular customer and authorized users during
           stated periods of time.

    Private operational fixed point-to-point microwave service. A private radio service rendered by fixed and
           temporary fixed stations on microwave frequencies for the exclusive use or availability for use of the
           licensee or other eligible entities for communication between two or more designated points. Service may
           be provided between points within the United States, points within United States possessions, or between
           the United States and points in Canada or Mexico.

    Public correspondence. Any telecommunication which the offices and stations must, by reason of their being at
          the disposal of the public, accept for transmission.

    Public message service. A service whereby facilities are offered to the public for communication between all
          points served by a carrier or by interconnected carriers on a non-exclusive message by message basis,
          contemplating a separate connection for each occasion of use.

    Radio station. A separate transmitter or a group of transmitters under simultaneous common control, including
          the accessory equipment required for carrying on a radiocommunication service.

    Radiocommunication. Telecommunication by means of radio waves.

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                                                                                      47 CFR 101.3 “Rated power output”
Fixed Microwave Services

    Rated power output. The maximum radio frequency power output capability (peak or average power) of a
          transmitter, under optimum conditions of adjustment and operation, specified by its manufacturer.

    Record communication. Any transmission of intelligence which is reduced to visual record form at the point of
         reception.

    Reference frequency. A frequency having a fixed and specified position with respect to the assigned frequency.
          The displacement of this frequency with respect to the assigned frequency has the same absolute value
          and sign that the displacement of the characteristic frequency has with respect to the centre of the
          frequency band occupied by the emission.

    Relay station. A fixed station used for the reception and retransmission of the signals of another station or
          stations.

    Remote station. A fixed station in a multiple address radio system that transmits one-way to one or more central
         receive sites, controls a master station, or is controlled, activated or interrogated by, and may respond to,
         a master station.

    Repeater station. A fixed station established for the automatic retransmission of radiocommunications received
         from one or more mobile stations and directed to a specified location; for public mobile radio operations,
         a fixed station that automatically retransmits the mobile communications and/or transmitter information
         about the base station, along a fixed point-to-point link between the base station and the central station.

    Secondary operations. Radio communications which may not cause interference to operations authorized on a
         primary basis and which are not protected from interference from these primary operations.

    Short haul system. A microwave system licensed under this part in which the longest radio circuit of tandem
          radio paths does not exceed 402 kilometers.

    Signal booster. A device at a fixed location which automatically receives, amplifies, and retransmits on a one-
          way or two-way basis, the signals received from base, fixed, mobile, and portable stations, with no change
          in frequency or authorized bandwidth. A signal booster may be either narrowband (Class A), in which case
          the booster amplifies only those discrete frequencies intended to be retransmitted, or broadband (Class
          B), in which case all signals within the passband of the signal booster filter are amplified.

    Signaling communication. One-way communications from a base station to a mobile or fixed receiver, or to
          multi-point mobile or fixed receivers by audible or subaudible means, for the purpose of actuating a
          signaling device in the receiver(s) or communicating information to the receiver(s), whether or not the
          information is to be retained in record form.

    Standby transmitter. A transmitter installed and maintained for use in lieu of the main transmitter only during
         periods when the main transmitter is out of service for maintenance or repair.

    Symbol rate. Modulation rate in bauds. This rate may be higher than the transmitted bit rate as in the case of
         coded pulses or lower as in the case of multilevel transmission.

    Telegraphy. A form of telecommunication which is concerned in any process providing transmission and
          reproduction at a distance of documentary matter, such as written or printed matter or fixed images, or
          the reproduction at a distance of any kind of information in such a form. Unless otherwise specified,
          telegraphy means a form of telecommunication for the transmission of written matter by the use of signal
          code.

    Telemetering. The use of telecommunication for automatic indicating or recording measurements at a distance
         from the measuring instrument.

47 CFR 101.3 “Telemetering” (enhanced display)                                                            page 12 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                       47 CFR 101.3 “Telephony”
Fixed Microwave Services

    Telephony. A form of telecommunication set up for the transmission of speech, or in some cases, other sounds.

    Television. A form of telecommunication for transmission of transient images of fixed or moving objects.

    Temporary fixed station. A station established in a non-permanent mode (temporary) at a specified location for a
         short period of time, ranging up to one year. Temporary-fixed operations are itinerant in nature, and are not
         to be confused with mobile-type operations.

    Universal Licensing System (ULS). The consolidated database, application filing system and processing system
          for all Wireless Telecommunications Services. The ULS offers Wireless Telecommunications Bureau
          (WTB) applicants and the general public electronic filing of all applications requests, and full public
          access to all WTB licensing data.

    User or subscriber station. The station(s) in a microwave radio system operating at the users' premises on point-
          to-multipoint or multipoint-to-multipoint frequencies and communicating with one or more nodal stations.

    Video entertainment material. The transmission of a video signal (e.g. United States Standard Monochrome or
          National Television Systems Committee 525-line television) and an associated audio signal which is
          designed primarily to amuse or entertain, such as movies and games.

[61 FR 26677, May 28, 1996, as amended at 61 FR 29693, June 12, 1996; 61 FR 31052, June 19, 1996; 61 FR 44181, Aug. 28,
1996; 62 FR 23163, Apr. 29, 1997; 63 FR 68981, Dec. 14, 1998; 65 FR 17448, Apr. 3, 2000; 65 FR 38326, June 20, 2000; 65 FR
59357, Oct. 5, 2000; 67 FR 43037, June 26, 2002; 68 FR 4955, Jan. 31, 2003; 77 FR 54432, Sept. 5, 2012; 85 FR 22889, Apr. 23,
2020]

Subpart B—Applications and Licenses

                                               GENERAL FILING REQUIREMENTS

§ 101.4 Transition plan.
     (a) All systems subject to parts 21 and 94 of this chapter in effect as of July 31, 1996, which are licensed or
         which are proposed in an application on file, as of July 31, 1996, are subject to the requirements under
         part 21 or part 94 of this chapter as contained in the CFR edition revised as of October 1, 1995 and
         amended in the FEDERAL REGISTER through July 31, 1996, as applicable, indefinitely.

     (b) For purposes of this section, a “system” shall include:

           (1) The originally licensed system;

           (2) Any modification to the original system involving a change in antenna azimuth, antenna beam width,
               channel loading, emission, station location, antenna height, authorized power, or authorized
               frequencies;

           (3) Additional links constructed to complete an integrated communications network; or

           (4) Operationally connecting new facilities and/or frequencies.

     (c) All radio frequency devices authorized pursuant to part 2 of this chapter as being in compliance with
         applicable part 21 or part 94 of this chapter in effect as of July 31, 1996, requirements can be used
         indefinitely with systems licensed under this part 101.

[61 FR 26677, May 28, 1996, as amended at 65 FR 38326, June 20, 2000]

47 CFR 101.4(c) (enhanced display)                                                                                 page 13 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                                  47 CFR 101.5
Fixed Microwave Services

§ 101.5 Station authorization required.
     (a) [Reserved]

     (b) A separate application form must be filed electronically via ULS for each Digital Electronic Message
         Service (DEMS) Nodal Station. No license is required for a DEMS User Station or for a Multiple Address
         System (MAS) remote or mobile station. Authority for a DEMS Nodal Station licensee to serve a specific
         number of user stations to be licensed in the name of the carrier must be requested on FCC Form 601
         filed for the DEMS Nodal Station. Authority for any number of MAS remotes and authority to serve MAS
         mobiles (to the extent this part permits such operation) within a specified area will be included in the
         authority for the MAS fixed master stations.

     (c) [Reserved]

     (d) For stations authorized under subpart H (Private Operational Fixed Point-to-Point Microwave Service),
         subpart I (Common Carrier Fixed Point-to-Point Microwave Service), and subpart L of this part (Local
         Multipoint Distribution Service), construction of new or modified stations may be initiated prior to grant of
         an authorization. As a condition to commencing construction under this paragraph (d), the Commission
         may, at any time and without hearing or notice, prohibit such construction for any reason. Any
         construction conducted under this paragraph is at the applicant's sole risk.

[61 FR 26677, May 28, 1996, as amended at 62 FR 23164, Apr. 29, 1997; 63 FR 68981, Dec. 14, 1998; 68 FR 4955, Jan. 31, 2003]

§ 101.7 Eligibility for station license.
     (a) A station license may not be granted to or held by a foreign government or by a representative of a foreign
         government.

     (b) In the Common Carrier service, a station license may not be granted or held by:

           (1) Any alien or the representative of any alien;

           (2) Any corporation organized under the laws of any foreign government;

           (3) Any corporation of which more than one-fifth of the capital stock is owned of record or voted by:
               Aliens or their representatives; a foreign government or representatives thereof; or any corporation
               organized under the laws of a foreign country; or

           (4) Any corporation directly or indirectly controlled by any other corporation of which more than one-
               fourth of the capital stock is owned of record or voted by aliens or their representatives, or by a
               foreign government or representative thereof, or by any corporation organized under the laws of a
               foreign government, if the Commission finds that the public interest will be served by the refusal or
               revocation of such license.

[61 FR 26677, May 28, 1996, as amended at 61 FR 55581, Oct. 28, 1996]

§ 101.17 [Reserved]

47 CFR 101.17 (enhanced display)                                                                                page 14 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                             47 CFR 101.21
Fixed Microwave Services

§ 101.21 Technical content of applications.
Applications, except FCC Form 175, must contain all technical information required by the application form and any
additional information necessary to fully describe the proposed facilities and to demonstrate compliance with all
technical requirements of the rules governing the radio service involved (see subparts C, F, G, I, J, and L of this part,
as appropriate). The following paragraphs describe a number of technical requirements.

    (a)–(d) [Reserved]

     (e) Each application in the Private Operational Fixed Point-to-Point Microwave Service and the Common
         Carrier Fixed Point-to-Point Microwave Service must include the following information:

     Applicant's name and address.

     Transmitting station name.

     Transmitting station coordinates.

     Frequencies and polarizations to be added, changed or deleted.

     Transmitting equipment, its stability, effective isotropic radiated power, emission designator, and type of
     modulation (digital).

     Transmitting antenna(s), model, gain, and, if required, a radiation pattern provided or certified by the
     manufacturer.

     Transmitting antenna center line height(s) above ground level and ground elevation above mean sea level.

     Receiving station name.

     Receiving station coordinates.

     Receiving antenna(s), model, gain, and, if required, a radiation pattern provided or certified by the manufacturer.

     Receiving antenna center line height(s) above ground level and ground elevation above mean sea level.

     Path azimuth and distance.

           Note: The position location of antenna sites shall be determined to an accuracy of no less than ±1
           second in the horizontal dimensions (latitude and longitude) and ±1 meter in the vertical
           dimension (ground elevation) with respect to the National Spacial Reference System.

     (f) All applicants for regular authorization must, before filing an application, major amendments to a pending
         application, or modifications to a license, prior coordinate the proposed frequency usage with existing
         users in the area and other applicants with previously filed applications in accordance with the
         procedures in § 101.103. In those frequency bands shared with the communication-satellite service, an
         applicant for a new station, for new points of communication, for the initial frequency assignment in a

47 CFR 101.21(f) (enhanced display)                                                                         page 15 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                             47 CFR 101.21(g)
Fixed Microwave Services

           shared band for which coordination has not been previously effected, or for authority to modify the
           emission or radiation characteristics of an existing station in a manner that may increase the likelihood of
           harmful interference, must ascertain in advance whether the station(s) involved lie within the great circle
           coordination distance contours of an existing Earth station or one for which an application has been
           accepted for filing, and must coordinate his proposal with each such Earth station operator or applicant.
           For each potential interference path, the applicant must perform the computations required to determine
           that the expected level of interference to or from the terrestrial station does not exceed the maximum
           permissible interference power level in accordance with the technical standards and requirements of §
           25.251 of this chapter. The Commission may, in the course of examining any application, require the
           submission of additional showings, complete with pertinent data and calculations in accordance with part
           25 of this chapter, showing that harmful interference will not likely result from the proposed operation.
           (Technical characteristics of the Earth stations on file and coordination contour maps for those Earth
           stations will be kept on file for public inspection in the offices of the Commission's Space Bureau in
           Washington, DC.)

     (g) Each application in the Local Multipoint Distribution Service and 24 GHz Service must contain all technical
         information required by FCC Form 601 and any other applicable form or associated Public Notices and by
         any applicable rules in this part.

[61 FR 26677, May 28, 1996, as amended at 62 FR 23164, Apr. 29, 1997; 63 FR 68981, Dec. 14, 1998; 65 FR 38327, June 20, 2000;
65 FR 59357, Oct. 5, 2000; 78 FR 25176, Apr. 29, 2013; 88 FR 21451, Apr. 10, 2023]

§ 101.23 Waiver of rules.
Waiver of these rules may be granted upon application or on the Commission's own motion in accordance with §
1.925 of this chapter.

[63 FR 68981, Dec. 14, 1998]

§ 101.31 Temporary and conditional authorizations.
     (a) Operation at temporary locations.

           (1) Authorizations may be issued upon proper application for rendition of temporary service to
               subscribers under the following conditions:

                 (i)   When a fixed station, authorized to operate at temporary locations, is to remain at a single
                       location for more than 6 months, an application for a station authorization designating that
                       single location as the permanent location shall be filed at least 90 days prior to the expiration of
                       the 6 month period;

                 (ii) The station shall be used only for rendition of communication service at a remote point where
                      the provision of wire facilities is not practicable within the required time frame; and

                 (iii) The antenna structure height employed at any location shall not exceed the criteria set forth in
                       § 17.7 of this chapter unless, in each instance, authorization for use of a specific maximum
                       antenna structure height for each location has been obtained from the Commission prior to
                       erection of the antenna. See § 101.125.

47 CFR 101.31(a)(1)(iii) (enhanced display)                                                                    page 16 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                       47 CFR 101.31(a)(2)
Fixed Microwave Services

           (2) Applications for authorizations to operate stations at temporary locations under the provisions of
               this section shall be made upon FCC Form 601. Blanket applications may be submitted for the
               required number of transmitters. An application for authority to operate a fixed station at temporary
               locations must specify the precise geographic area within which the operation will be confined. The
               area specified must be defined as a radius of operation about a specific coordinate (latitude/
               longitude), or as a county, or as a State. Exception to this specific requirement may be made for
               exceptionally large areas, such as the continental United States. Sufficient data must be submitted
               to show the need for the proposed area of operation.

           (3) Operations in the 17.8–19.7 GHz band for any services and in the 17.7–17.8 GHz band for MVPD
               operations are prohibited in the areas defined in § 1.924 of this chapter. Operations proposed in the
               areas defined in § 1.924 of this chapter may not commence without prior specific notification to, and
               authorization from, the Commission.

     (b) Conditional authorization.

           (1) An applicant for a new point-to-point microwave radio station(s) or a modification of an existing
               station(s) in the 952.95–956.15 and 956.55–959.75 MHz band segments; the 3700–4200,
               5925–6425, 6525–6875, and 6875–7125 MHz bands; the 10.550–10.680, 10.700–11.700,
               12.700–13.150, 13.200–13.250, 17.700–18.300, and 19.300–19.700 GHz bands; and the
               21.800–22.000 and 23.000–23.200 GHz band segments (see § 101.147(s)(8) for specific service
               usage) may operate the proposed station(s) during the pendency of its applications(s) upon the
               filing of a properly completed formal application(s) that complies with subpart B of this part, if the
               applicant certifies that the following conditions are satisfied:

                 (i)   The frequency coordination procedures of § 101.103 have been successfully completed;

                 (ii) The antenna structure(s) has been previously studied by the Federal Aviation Administration
                      and determined to pose no hazard to aviation safety as required by subpart B of part 17 of this
                      chapter; or the antenna or tower structure does not exceed 6.1 meters above ground level or
                      above an existing man-made structure (other than an antenna structure), if the antenna or
                      tower has not been previously studied by the Federal Aviation Administration and cleared by the
                      FCC;

                (iii) The grant of the application(s) does not require a waiver of the Commission's rules:

                (iv) The applicant has determined that the facility(ies) will not significantly affect the environment
                     as defined in § 1.1307 of this chapter;

                 (v) The station site does not lie within 56.3 kilometers of any international border, within areas
                     identified in §§ 1.924(a) through (d) of this chapter unless the affected entity consents in
                     writing to conditional operation or, if for any services on frequencies in the 17.8–19.7 GHz band
                     and for MVPD operations in the 17.7–17.8 GHz band, within any of the areas identified in §
                     1.924 of this chapter;

                (vi) If operated on frequencies in the 10.6–10.68 GHz band, the station site does not lie within any
                     of the following regions:

                               Name of region         Dimensions = radius in kilometers            Center-point
                        Kitt Peak, Arizona                            60                   N31–57–22; W111–36–42
                        Big Pine, California                          60                   N37–13–54; W118–16–34

47 CFR 101.31(b)(1)(vi) (enhanced display)                                                                   page 17 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                   47 CFR 101.31(b)(1)(vii)
Fixed Microwave Services

                               Name of region         Dimensions = radius in kilometers            Center-point
                       Vandenburg AFB, California                    75                   N34–43–00; W120–34–00
                       Denver, Colorado                              150                  N39–43–00; W104–46–00
                       Washington, DC                                150                  N38–48–00; W76–52–00
                       Eglin AFB, Florida                            50                   N30–29–00; W86–32–00
                       Mauna Kea, Hawaii                             60                   N19–48–16; W155–27–29
                       North Liberty, Iowa                           60                   N41–46–17; W91–34–26
                       Maryland Point, Maryland                      60                   N38–22–26; W77–14–00
                       Hancock, New Hampshire                        60                   N42–56–01; W71–59–12
                       Los Alamos, New Mexico                        60                   N35–46–30; W106–14–42
                       Pie Town, New Mexico                          60                   N34–18–04; W108–07–07
                       Socorro, New Mexico                           160                  N34–04–43; W107–37–04
                       WSMR, New Mexico                              75                   N32–23–00; W106–29–00
                       Minot AFB, North Dakota                       80                   N48–15–00; W101–17–00
                       Arecibo, Puerto Rico                          160                  N18–20–37; W66–45–11
                       Fort Davis, Texas                             60                   N30–38–06; W103–56–39
                       St. Croix, Virgin Islands                     60                   N17–45–31; W64–35–03
                       Brewster, Washington                          60                   N48–07–53; W119–40–55
                       Green Bank, West Virginia                     160                  N38–25–59; W79–50–24

                      Note: Coordinates are referenced to North American Datum 1983 (NAD83).

                (vii) With respect to the 21.8–22.1 GHz and 23.0–23.3 GHz band, the filed application(s) does not
                      propose to operate on a frequency pair centered on other than 21.825/23.025 GHz, 21.875/
                      23.075 GHz, 21.925/23.125 GHz, 21.975/23.175 GHz, 22.025/23.225 GHz or 22.075/23.275
                      GHz and does not propose to operate with an E.I.R.P. greater than 55 dBm. The center
                      frequencies are shifted from the center frequencies listed above for certain bandwidths as
                      follows: add 0.005 GHz for 20 MHz bandwidth channels, add 0.010 GHz for 30 megahertz
                      bandwidth channels, and subtract 0.005 GHz for 40 MHz bandwidth channels. See specific
                      channel listings in § 101.147(s).

                (viii) The filed application(s) is consistent with the proposal that was coordinated pursuant to §
                       101.103.

           (2) Conditional authority ceases immediately if the application(s) is returned by the Commission
               because it is not acceptable for filing.

           (3) Conditional authorization does not prejudice any action the Commission may take on the subject
               application(s). Conditional authority is accepted with the express understanding that such authority
               may be modified or cancelled by the Commission at any time without hearing if, in the Commission's
               discretion, the need for such action arises. An applicant operating pursuant to this conditional
               authority assumes all risks associated with such operation, the termination or modification of the
               conditional authority, or the subsequent dismissal or denial of its applications(s).

47 CFR 101.31(b)(3) (enhanced display)                                                                     page 18 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                                  47 CFR 101.45
Fixed Microwave Services

[61 FR 26677, May 28, 1996, as amended at 62 FR 55538, Oct. 27, 1997; 63 FR 10779, Mar. 5, 1998; 63 FR 68981, Dec. 14, 1998;
65 FR 38327, June 20, 2000; 68 FR 4955, Jan. 31, 2003; 69 FR 17959, Apr. 6, 2004; 71 FR 69048, Nov. 29, 2006; 75 FR 41771, July
19, 2010; 76 FR 59571, Sept. 27, 2011; 80 FR 38912, July 7, 2015]

                                               PROCESSING OF APPLICATIONS

§ 101.45 Mutually exclusive applications.
     (a) The Commission will consider applications to be mutually exclusive if their conflicts are such that the
         grant of one application would effectively preclude by reason of harmful electrical interference, or other
         practical reason, the grant of one or more of the other applications. The Commission will presume
         “harmful electrical interference” exists when the levels of § 101.105 are exceeded, or when there is a
         material impairment to service rendered to the public despite full cooperation in good faith by all
         applicants or parties to achieve reasonable technical adjustments which would avoid electrical conflict.

     (b) A common carrier application, except in the Local Multipoint Distribution Service and in the 24 GHz
         Service, will be entitled to comparative consideration with one or more conflicting applications only if:

           (1) The application is mutually exclusive with the other application; and

           (2) The application is received by the Commission in a condition acceptable for filing by whichever “cut-
               off” date is earlier:

                 (i)   Sixty (60) days after the date of the public notice listing the first of the conflicting applications
                       as accepted for filing; or

                 (ii) One (1) business day preceding the day on which the Commission takes final action on the
                      previously filed application (should the Commission act upon such application in the interval
                      between thirty (30) and sixty (60) days after the date of its public notice).

     (c) Whenever three or more applications are mutually exclusive, but not uniformly so, the earliest filed
         application established the date prescribed in paragraph (b)(2) of this section, regardless of whether or
         not subsequently filed applications are directly mutually exclusive with the first filed application. (For
         example, applications A, B, and C are filed in that order. A and B are directly mutually exclusive, B and C
         are directly mutually exclusive. In order to be considered comparatively with B, C must be filed within the
         “cut-off” period established by A even though C is not directly mutually exclusive with A.)

     (d) Private operational fixed point-to-point microwave applications for authorization under this part will be
         entitled to comparative consideration with one or more conflicting applications in accordance with the
         provisions of § 1.227(b)(4) of this chapter.

     (e) An application otherwise mutually exclusive with one or more previously filed applications, but filed after
         the appropriate date prescribed in paragraphs (b) or (d) of this section, will be returned without prejudice
         and will be eligible for refiling only after final action is taken by the Commission with respect to the
         previously filed application (or applications).

     (f) For purposes of this section, any application (whether mutually exclusive or not) will be considered to be a
         newly filed application if it is amended by a major amendment (as defined by § 1.929 of this chapter),
         except under any of the following circumstances:

           (1) The application has been designated for comparative hearing, or for comparative evaluation
               (pursuant to § 101.51 of this part), and the Commission or the presiding officer accepts the
               amendment pursuant to § 1.927 of this chapter;

47 CFR 101.45(f)(1) (enhanced display)                                                                           page 19 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                           47 CFR 101.45(f)(2)
Fixed Microwave Services

           (2) The amendment resolves frequency conflicts with authorized stations or other pending applications
               which would otherwise require resolution by hearing or by comparative evaluation pursuant to §
               101.51 provided that the amendment does not create new or additional frequency conflicts;

           (3) The amendment reflects only a change in ownership or control found by the Commission to be in the
               public interest, and for which a requested exemption from the “cut-off” requirements of this section
               is granted;

           (4) The amendment reflects only a change in ownership or control which results from an agreement
               under § 1.935 of this chapter whereby two or more applicants entitled to comparative consideration
               of their applications join in one (or more) of the existing applications and request dismissal of their
               other application (or applications) to avoid the delay and cost of comparative consideration;

           (5) The amendment corrects typographical, transcription, or similar clerical errors which are clearly
               demonstrated to be mistakes by reference to other parts of the application, and whose discovery
               does not create new or increased frequency conflicts; or

           (6) The amendment does not create new or increased frequency conflicts, and is demonstrably
               necessitated by events which the applicant could not have reasonably foreseen at the time of filing,
               such as, for example:

                 (i)   The loss of a transmitter or receiver site by condemnation, natural causes, or loss of lease or
                       option;

                 (ii) Obstruction of a proposed transmission path caused by the erection of a new building or other
                      structure; or

                (iii) The discontinuance or substantial technological obsolescence of specified equipment,
                      whenever the application has been pending before the Commission for two or more years from
                      the date of its filing.

     (g) Applicants for the 932.5–935/941.5–944 MHz bands shall select a frequency pair. Applicants for these
         bands may select an unpaired frequency only upon a showing that spectrum efficiency will not be
         impaired and that unpaired spectrum is not available in other bands. During the initial filing window,
         frequency coordination is not required, except that an application for a frequency in the 942–944 MHz
         band must be coordinated to ensure that it does not affect an existing broadcast auxiliary service
         licensee. After the initial filing window, an applicant must submit evidence that frequency coordination
         has been performed with all licensees affected by the application. All frequency coordination must be
         performed in accordance with § 101.103. In the event of mutually exclusive applications occurring during
         the initial filing window for the 932.5–935/941.5–944 MHz bands, applicants shall be given the
         opportunity to resolve these situations by applying for an alternative frequency pair, if one is available. To
         the extent that there are no other available frequencies or to the extent that mutually exclusive
         applications remain after this process is concluded, lotteries shall be conducted for each frequency pair
         among all remaining mutually exclusive applications, assuming appropriate coordination with existing
         broadcast auxiliary stations can be concluded, where necessary. In the event of mutually exclusive
         applications being received for these bands on the same day after the initial filing window has closed and
         a subsequent filing window opened, lotteries shall be conducted for each frequency pair among all
         mutually exclusive applications.

[61 FR 26677, May 28, 1996, as amended at 62 FR 23164, Apr. 29, 1997; 62 FR 24582, May 6, 1997; 63 FR 6103, Feb. 6, 1998; 63
FR 68982, Dec. 14, 1998; 65 FR 59357, Oct. 5, 2000]

47 CFR 101.45(g) (enhanced display)                                                                            page 20 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                          47 CFR 101.51
Fixed Microwave Services

§ 101.51 Comparative evaluation of mutually exclusive applications.
     (a) In order to expedite action on mutually exclusive applications in services under this rules part where
         neither competitive bidding nor the random selection processes apply, the applicants may request the
         Commission to consider their applications without a formal hearing in accordance with the summary
         procedure outlined in paragraph (b) in this section if:

           (1) The applications are entitled to comparative consideration pursuant to § 101.45;

           (2) The applications have not been designated for formal evidentiary hearing; and

           (3) The Commission determines, initially or at any time during the procedure outline in paragraph (b) of
               this section, that such procedure is appropriate, and that, from the information submitted and
               consideration of such other matters as may be officially noticed, there are no substantial and
               material questions of fact, presented (Other than those relating to the comparative merits of the
               applications) which would preclude a grant under § 1.915 of this chapter.

     (b) Provided that the conditions of paragraph (a) of this section are satisfied, applicants may request the
         Commission to act upon their mutually exclusive applications without a formal hearing pursuant to the
         summary procedure outlined below:

           (1) To initiate the procedure, each applicant will submit to the Commission a written statement
               containing:

                 (i)   A waiver of the applicant's right to a formal hearing;

                 (ii) A request and agreement that, in order to avoid the delay and expense of a comparative formal
                      hearing, the Commission should exercise its judgment to select from among the mutually
                      exclusive applications that proposal (or proposals) which would best serve the public interest;
                      and

                (iii) The signature of a principal (and the principal's attorney if represented).

           (2) After receipt of the written requests of all of the applicants the Commission (if it deems this
               procedure appropriate) will issue a notice designating the comparative criteria upon which the
               applications are to be evaluated and will request each applicant to submit, within a specified period
               of time, additional information concerning the applicant's proposal relative to the comparative
               criteria.

           (3) Within thirty (30) days following the due date for filing this information, the Commission will accept
               concise and factual argument on the competing proposals from the rival applicants, potential
               customers, and other knowledgeable parties in interest.

           (4) Within fifteen (15) days following the due date for the filing of comments, the Commission will
               accept concise and factual replies from the rival applicants.

           (5) From time to time during the course of this procedure the Commission may request additional
               information from the applicants and hold informal conferences at which all competing applicants
               will have the right to be represented.

47 CFR 101.51(b)(5) (enhanced display)                                                                    page 21 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                           47 CFR 101.51(b)(6)
Fixed Microwave Services

           (6) Upon evaluation of the applications, the information submitted, and such other matters as may be
               officially noticed the Commission will issue a decision granting one (or more) of the proposals which
               it concludes would best serve the public interest, convenience and necessity. The decision will report
               briefly and concisely the reasons for the Commission's selection and will deny the other
               application(s). This decision will be considered final.

[61 FR 26677, May 28, 1996, as amended at 63 FR 6104, Feb. 6, 1998; 63 FR 68982, Dec. 14, 1998]

                       LICENSE TRANSFERS, MODIFICATIONS, CONDITIONS AND FORFEITURES

§ 101.55 Considerations involving transfer or assignment applications.
     (a) Except as provided for in paragraph (d) of this section, licenses not authorized pursuant to competitive
         bidding procedures may not be assigned or transferred prior to the completion of construction of the
         facility.

     (b) [Reserved]

     (c) At its discretion, the Commission may require the submission of an affirmative, factual showing
         (supported by affidavits of a person or persons with personal knowledge thereof) to demonstrate that the
         proposed assignor or transferor has not acquired an authorization or operated a station for the principal
         purpose of profitable sale rather than public service. This showing may include, for example, a
         demonstration that the proposed assignment or transfer is due to changed circumstances (described in
         detail) affecting the licensee subsequent to the acquisition of the license, or that the proposed transfer of
         radio facilities is incidental to a sale of other facilities or merger of interests.

     (d) If a proposed transfer of radio facilities is incidental to a sale or other facilities or merger of interests, the
         showing specified under paragraph (c) of this section shall be submitted and include an additional exhibit
         that:

           (1) Discloses complete details as to the sale of facilities or merger of interests;

           (2) Segregates clearly by an itemized accounting, the amount of consideration involved in the sale of
               facilities or merger of interests; and

           (3) Demonstrates that the amount of consideration assignable to the facilities or business interests
               involved represents their fair market value at the time of the transaction.

[61 FR 26677, May 28, 1996, as amended at 63 FR 6104, Feb. 6, 1998; 63 FR 68982, Dec. 14, 1998; 65 FR 38327, June 20, 2000;
68 FR 4955, Jan. 31, 2003]

§ 101.56 [Reserved]
§ 101.61 Certain modifications not requiring prior authorization in the Local Multipoint
Distribution Service and 24 GHz Service
In the Local Multipoint Distribution Service (LMDS) licensees may add, remove, or relocate facilities within the area
authorized by the license without prior authorization. Upon request by an incumbent licensee or the Commission, an
LMDS licensee shall furnish the technical parameters, location and coordinates of the completion of the addition,

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47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                                  47 CFR 101.63
Fixed Microwave Services

removal, relocation or modification of any of its facilities within the BTA. The LMDS licensee must provide such
information within ten (10) days of receiving a written request. This section also applies to 24 GHz licensees that
are licensed according to Economic Areas.

[65 FR 59357, Oct. 5, 2000]

§ 101.63 Period of construction; certification of completion of construction.
     (a) Each Station, except in Multichannel Video Distribution and Data Service, Local Multipoint Distribution
         Service, and the 24 GHz Service, authorized under this part must be in operation within 18 months from
         the initial date of grant.

     (b) For the 70 GHz, 80 GHz, and 90 GHz bands, the 12-month construction period will commence on the date
         of each registration of each individual link; adding links will not change the overall renewal period of the
         license.

     (c) Failure to timely begin operation means the authorization cancels automatically.

     (d) The frequencies associated with all point-to-multipoint authorizations which have cancelled automatically
         or otherwise been recovered by the Commission will again be made available for reassignment on a date
         and under terms set forth by Public Notice. See § 101.1331(d) for treatment of MAS incumbent site-by-
         site licenses recovered in EAs.

     (e) Requests for extension of time may be granted upon a showing of good cause pursuant to § 1.946(e) of
         this chapter.

     (f) Construction of any authorized facility or frequency must be completed by the date specified in the
         license as pursuant to § 1.946 of this chapter.

     (g) MVPD licensees which have both analog and digital emissions designators specified on the license and
         which already have, or may transition from analog to digital operations, or a combination of both, meet
         their completion of construction requirements and do not automatically surrender their license provided
         they are using either set of emissions. If the licensee has completed the transition to digital, the license
         can remove the unused analog emission designators the next time a modification or renewal application
         is filed.

[61 FR 26677, May 28, 1996, as amended at 62 FR 23165, Apr. 29, 1997; 63 FR 6104, Feb. 6, 1998; 63 FR 68982, Dec. 14, 1998; 64
FR 45893, Aug. 23, 1999; 65 FR 17448, Apr. 3, 2000; 65 FR 38327, June 20, 2000; 65 FR 59357, Oct. 5, 2000; 69 FR 3266, Jan. 23,
2004; 69 FR 16832, Mar. 31, 2004; 71 FR 69048, Nov. 29, 2006; 81 FR 79944, Nov. 14, 2016]

§ 101.64 Service areas.
Service areas for 38.6–40.0 GHz service are Economic Areas (EAs) as defined below. EAs are delineated by the
Regional Economic Analysis Division, Bureau of Economic Analysis, U.S. Department of Commerce. The Commerce
Department organizes the 50 States and the District of Columbia into 172 EAs. Additionally, there are four EA-like
areas: Guam and Northern Mariana Islands; Puerto Rico and the U.S. Virgin Islands; American Samoa and the Gulf
of Mexico. A total of 175 authorizations (excluding the Gulf of Mexico EA-like area) will be issued for each channel
block in the 39 GHz band.

[64 FR 45893, Aug. 23, 1999]

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47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                            47 CFR 101.65
Fixed Microwave Services

§ 101.65 Termination of station authorizations.
In addition to the provisions of § 1.953 of this chapter, a site-based license will be automatically terminated in
whole or in part without further notice to the licensee upon the voluntary removal or alteration of the facilities, so as
to render the station not operational for a period of 30 days or more. A licensee is subject to this provision
commencing on the date it is required to be providing service or operating under § 101.63. This provision is
inapplicable to blanket authorizations to operate fixed stations at temporary locations pursuant to the provisions of
§ 101.31(a)(2). See § 101.305 for additional rules regarding temporary and permanent discontinuation of service.

[82 FR 41549, Sept. 1, 2017]

Effective Date Note: At 82 FR 41549, Sept. 1, 2017, § 101.65 was revised. This section contains information
collection and recordkeeping requirements and will not become effective until approval has been given by the Office
of Management and Budget.

§ 101.67 License period.
Licenses for stations authorized under this part will be issued for a period not to exceed 10 years. Unless otherwise
specified by the Commission, the expiration of regular licenses shall be on the date (month and day) selected by
licensees in the year of expiration.

Policies Governing Microwave Relocation From the 1850–1990 and 2110–2200 MHz
Bands
§ 101.69 Transition of the 1850–1990 MHz, 2110–2150 MHz, and 2160–2200 MHz bands from the
fixed microwave services to personal communications services and emerging technologies.
Fixed Microwave Services (FMS) in the 1850–1990 MHz, 2110–2150 MHz, and 2160–2200 MHz bands have been
allocated for use by emerging technology (ET) services, including Personal Communications Services (PCS),
Advanced Wireless Services (AWS), and Mobile Satellite Services (MSS). The rules in this section provide for a
transition period during which ET licensees may relocate existing FMS licensees using these frequencies to other
media or other fixed channels, including those in other microwave bands.

     (a) ET licensees may negotiate with FMS licensees authorized to use frequencies in the 1850–1990 MHz,
         2110–2150 MHz, and 2160–2200 MHz bands, for the purpose of agreeing to terms under which the FMS
         licensees would:

           (1) Relocate their operations to other fixed microwave bands or other media; or alternatively

           (2) Accept a sharing arrangement with the ET licensee that may result in an otherwise impermissible
               level of interference to the FMS operations.

    (b)–(c) [Reserved]

     (d) Relocation of FMS licensees in the 2110–2150 and 2160–2200 MHz band will be subject to mandatory
         negotiations only. Except as provided in paragraph (e) of this section, mandatory negotiation periods are
         defined as follows:

           (1) Non-public safety incumbents will have a two-year mandatory negotiation period; and

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           (2) Public safety incumbents will have a three-year mandatory negotiation period.

     (e) Relocation of FMS licensees by Mobile-Satellite Service (MSS) licensees will be subject to mandatory
         negotiations only.

           (1) The mandatory negotiation period for non-public safety incumbents will end December 8, 2004.

           (2) The mandatory negotiation period for public safety incumbents will end December 8, 2005.

     (f) AWS licensees operating in the 1910–1920 MHz and 2175–2180 MHz bands will follow the requirements
         and procedures set forth in ET Docket No. 00–258 and WT Docket No. 04–356.

     (g) If no agreement is reached during the mandatory negotiation period, an ET licensee may initiate
         involuntary relocation procedures. Under involuntary relocation, the incumbent is required to relocate,
         provided that the ET licensee meets the conditions of § 101.75.

[62 FR 12758, Mar. 18, 1997, as amended at 65 FR 48182, Aug. 7, 2000; 68 FR 3464, Jan. 24, 2003; 68 FR 68253, Dec. 8, 2003; 69
FR 62622, Oct. 27, 2004; 71 FR 29842, May 24, 2006; 78 FR 8271, Feb. 5, 2013; 78 FR 48621, Aug. 9, 2013]

§ 101.71 [Reserved]
§ 101.73 Mandatory negotiations.
     (a) A mandatory negotiation period may be initiated at the option of the ET licensee. Relocation of FMS
         licensees by Mobile Satellite Service (MSS) operators and AWS licensees in the 2110–2150 MHz and
         2160–2200 MHz bands will be subject to mandatory negotiations only.

     (b) Once mandatory negotiations have begun, an FMS licensee may not refuse to negotiate and all parties are
         required to negotiate in good faith. Good faith requires each party to provide information to the other that
         is reasonably necessary to facilitate the relocation process. In evaluating claims that a party has not
         negotiated in good faith, the FCC will consider, inter alia, the following factors:

           (1) Whether the ET licensee has made a bona fide offer to relocate the FMS licensee to comparable
               facilities in accordance with Section 101.75(b);

           (2) If the FMS licensee has demanded a premium, the type of premium requested (e.g., whether the
               premium is directly related to relocation, such as system-wide relocations and analog-to-digital
               conversions, versus other types of premiums), and whether the value of the premium as compared
               to the cost of providing comparable facilities is disproportionate (i.e., whether there is a lack of
               proportion or relation between the two);

           (3) What steps the parties have taken to determine the actual cost of relocation to comparable facilities;

           (4) Whether either party has withheld information requested by the other party that is necessary to
               estimate relocation costs or to facilitate the relocation process.

     (c) Any party alleging a violation of our good faith requirement must attach an independent estimate of the
         relocation costs in question to any documentation filed with the Commission in support of its claim. An
         independent cost estimate must include a specification for the comparable facility and a statement of the
         costs associated with providing that facility to the incumbent licensee.

47 CFR 101.73(c) (enhanced display)                                                                              page 25 of 196
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                                                                                                               47 CFR 101.73(d)
Fixed Microwave Services

     (d) Provisions for Relocation of Fixed Microwave Licensees in the 2110–2150 and 2160–2200 MHz bands. A
         separate mandatory negotiation period will commence for each FMS licensee when an ET licensee
         informs that FMS licensee in writing of its desire to negotiate. Mandatory negotiations will be conducted
         with the goal of providing the FMS licensee with comparable facilities defined as facilities possessing the
         following characteristics:

           (1) Throughput. Communications throughput is the amount of information transferred within a system in
               a given amount of time. If analog facilities are being replaced with analog, comparable facilities
               provide an equivalent number of 4 kHz voice channels. If digital facilities are being replaced with
               digital, comparable facilities provide equivalent data loading bits per second (bps).

           (2) Reliability. System reliability is the degree to which information is transferred accurately within a
               system. Comparable facilities provide reliability equal to the overall reliability of the FMS system. For
               digital systems, reliability is measured by the percent of time the bit error rate (BER) exceeds a
               desired value, and for analog or digital voice transmission, it is measured by the percent of time that
               audio signal quality meets an established threshold. If an analog system is replaced with a digital
               system, only the resulting frequency response, harmonic distortion, signal-to-noise and its reliability
               will be considered in determining comparable reliability.

           (3) Operating Costs. Operating costs are the cost to operate and maintain the FMS system. ET licensees
               would compensate FMS licensees for any increased recurring costs associated with the
               replacement facilities (e.g., additional rental payments, and increased utility fees) for five years after
               relocation. ET licensees could satisfy this obligation by making a lump-sum payment based on
               present value using current interest rates. Additionally, the maintenance costs to the FMS licensee
               would be equivalent to the 2 GHz system in order for the replacement system to be comparable.

[61 FR 29694, June 12, 1996, as amended at 62 FR 12758, Mar. 18, 1997; 65 FR 48182, Aug. 7, 2000; 68 FR 3464, Jan. 24, 2003;
68 FR 68253, Dec. 8, 2003; 69 FR 62622, Oct. 27, 2004; 71 FR 29842, May 24, 2006; 78 FR 8272, Feb. 5, 2013; 78 FR 48621, Aug. 9,
2013]

§ 101.75 Involuntary relocation procedures.
     (a) If no agreement is reached during the mandatory negotiation period, an ET licensee may initiate
         involuntary relocation procedures under the Commission's rules. ET licensees are obligated to pay to
         relocated only the specific microwave links to which their systems pose an interference problem. Under
         involuntary relocation, the FMS licensee is required to relocate, provided that the ET licensee:

           (1) Guarantees payment of relocation costs, including all engineering, equipment, site and FCC fees, as
               well as any legitimate and prudent transaction expenses incurred by the FMS licensee that are
               directly attributable to an involuntary relocation, subject to a cap of two percent of the hard costs
               involved. Hard costs are defined as the actual costs associated with providing a replacement
               system, such as equipment and engineering expenses. ET licensees are not required to pay FMS
               licensees for internal resources devoted to the relocation process. ET licensees are not required to
               pay for transaction costs incurred by FMS licensees during the voluntary or mandatory periods once
               the involuntary period is initiated, or for fees that cannot be legitimately tied to the provision of
               comparable facilities;

           (2) Completes all activities necessary for implementing the replacement facilities, including engineering
               and cost analysis of the relocation procedure and, if radio facilities are used, identifying and
               obtaining, on the incumbents' behalf, new microwave frequencies and frequency coordination; and

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                                                                                                           47 CFR 101.75(a)(3)
Fixed Microwave Services

           (3) Builds the replacement system and tests it for comparability with the existing 2 GHz system.

     (b) Comparable facilities. The replacement system provided to an incumbent during an involuntary relocation
         must be at least equivalent to the existing FMS system with respect to the following three factors:

           (1) Throughput. Communications throughput is the amount of information transferred within a system in
               a given amount of time. If analog facilities are being replaced with analog, the ET licensee is required
               to provide the FMS licensee with an equivalent number of 4 kHz voice channels. If digital facilities
               are being replaced with digital, the ET licensee must provide the FMS licensee with equivalent data
               loading bits per second (bps). ET licensees must provide FMS licensees with enough throughput to
               satisfy the FMS licensee's system use at the time of relocation, not match the total capacity of the
               FMS system.

           (2) Reliability. System reliability is the degree to which information is transferred accurately within a
               system. ET licensees must provide FMS licensees with reliability equal to the overall reliability of
               their system. For digital data systems, reliability is measured by the percent of time the bit error rate
               (BER) exceeds a desired value, and for analog or digital voice transmissions, it is measured by the
               percent of time that audio signal quality meets an established threshold. If an analog voice system is
               replaced with a digital voice system, only the resulting frequency response, harmonic distortion,
               signal-to-noise ratio and its reliability will be considered in determining comparable reliability.

           (3) Operating costs. Operating costs are the cost to operate and maintain the FMS system. ET licensees
               must compensate FMS licensees for any increased recurring costs associated with the replacement
               facilities (e.g., additional rental payments, increased utility fees) for five years after relocation. ET
               licensees may satisfy this obligation by making a lump-sum payment based on present value using
               current interest rates. Additionally, the maintenance costs to the FMS licensee must be equivalent to
               the 2 GHz system in order for the replacement system to be considered comparable.

     (c) The FMS licensee is not required to relocate until the alternative facilities are available to it for a
         reasonable time to make adjustments, determine comparability, and ensure a seamless handoff.

     (d) Twelve-month trial period. If, within one year after the relocation to new facilities, the FMS licensee
         demonstrates that the new facilities are not comparable to the former facilities, the ET licensee must
         remedy the defects or pay to relocate the microwave licensee to one of the following: its former or
         equivalent 2 GHz channels, another comparable frequency band, a land-line system, or any other facility
         that satisfies the requirements specified in paragraph (b) of this section. This trial period commences on
         the date that the FMS licensee begins full operation of the replacement link. If the FMS licensee has
         retained its 2 GHz authorization during the trial period, it must return the license to the Commission at the
         end of the twelve months. FMS licensees relocated from the 2110–2150 and 2160–2200 MHz bands may
         not be returned to their former 2 GHz channels. All other remedies specified in paragraph (d) are available
         to FMS licensees relocated from the 2110–2150 MHz and 2160–2200 MHz bands, and may be invoked
         whenever the FMS licensee demonstrates that its replacement facility is not comparable, subject to no
         time limit.

[61 FR 29694, June 12, 1996, as amended at 65 FR 48183, Aug. 7, 2000; 68 FR 3464, Jan. 24, 2003; 71 FR 29842, May 24, 2006]

47 CFR 101.75(d) (enhanced display)                                                                            page 27 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                                47 CFR 101.77
Fixed Microwave Services

§ 101.77 Public safety licensees in the 1850–1990 MHz, 2110–2150 MHz, and 2160–2200 MHz
bands.
     (a) In order for public safety licensees to qualify for a three year mandatory negotiation period as defined in §
         101.69(d)(2), the department head responsible for system oversight must certify to the ET licensee
         requesting relocation that:

           (1) The agency is a Police licensee, a Fire Licensee, or an Emergency Medical Licensee as defined in §
               90.7 of this chapter, or meets the eligibility requirements of § 90.20(a)(2) of this chapter, except for
               § 90.20(a)(2)(ii) of this chapter, or that it is a licensee of other part 101 facilities licensed on a
               primary basis under the eligibility requirements of part 90, subpart B of this chapter; and

           (2) The majority of communications carried on the facilities at issue involve safety of life and property.

     (b) A public safety licensee must provide certification within thirty (30) days of a request from a ET licensee,
         or the ET licensee may presume that special treatment is inapplicable. If a public safety licensee falsely
         certifies to an ET licensee that it qualifies for the extended time periods, this licensee will be in violation of
         the Commission's rules and will subject to appropriate penalties, as well as immediately subject to the
         non-public safety time periods.

[61 FR 29695, June 12, 1996, as amended at 62 FR 12758, Mar. 18, 1997; 62 FR 18936, Apr. 17, 1997; 71 FR 29842, May 24, 2006]

§ 101.79 Sunset provisions for licensees in the 1850–1990 MHz, 2110–2150 MHz, and 2160–2200
MHz bands.
     (a) FMS licensees will maintain primary status in the 1850–1990 MHz, 2110–2150 MHz, and 2160–2200
         MHz bands unless and until an ET licensee requires use of the spectrum. ET licensees are not required to
         pay relocation costs after the relocation rules sunset. Once the relocation rules sunset, an ET licensee
         may require the incumbent to cease operations, provided that the ET licensee intends to turn on a system
         within interference range of the incumbent, as determined by TIA TSB 10–F (for terrestrial-to-terrestrial
         situations) or TIA TSB 86 (for MSS satellite-to-terrestrial situations) or any standard successor. ET
         licensee notification to the affected FMS licensee must be in writing and must provide the incumbent with
         no less than six months to vacate the spectrum. After the six-month notice period has expired, the FMS
         licensee must turn its license back into the Commission, unless the parties have entered into an
         agreement which allows the FMS licensee to continue to operate on a mutually agreed upon basis. The
         date that the relocation rules sunset is determined as follows:

           (1) For the 2110–2150 MHz and 2160–2175 MHz and 2175–2180 MHz bands, ten years after the first
               ET license is issued in the respective band; and

           (2) For the 2180–2200 MHz band, for MSS/ATC December 8, 2013 (i.e., ten years after the mandatory
               negotiation period begins for MSS/ATC operators in the service), and for ET licensees authorized
               under part 27 ten years after the first part 27 license is issued in the band. To the extent that an MSS
               operator is also an ET licensee authorized under part 27, the part 27 sunset applies to its relocation
               and cost sharing obligations should the two sets of obligations conflict.

     (b) If the parties cannot agree on a schedule or an alternative arrangement, requests for extension will be
         accepted and reviewed on a case-by-case basis. The Commission will grant such extensions only if the
         incumbent can demonstrate that:

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                                                                                                           47 CFR 101.79(b)(1)
Fixed Microwave Services

           (1) It cannot relocate within the six-month period (e.g., because no alternative spectrum or other
               reasonable option is available), and;

           (2) The public interest would be harmed if the incumbent is forced to terminate operations (e.g., if public
               safety communications services would be disrupted).

[61 FR 29695, June 12, 1996, as amended at 62 FR 12758, Mar. 18, 1997; 68 FR 68254, Dec. 8, 2003; 71 FR 29842, May 24, 2006;
78 FR 8272, Feb. 5, 2013]

§ 101.81 Future licensing in the 1850–1990 MHz, 2110–2150 MHz, and 2160–2200 MHz bands.
After April 25, 1996, all major modifications and extensions to existing FMS systems in the 1850–1990 MHz,
2110–2150 MHz, and 2160–2200 MHz bands will be authorized on a secondary basis to ET systems. All other
modifications will render the modified FMS license secondary to ET operations, unless the incumbent affirmatively
justifies primary status and the incumbent FMS licensee establishes that the modification would not add to the
relocation costs of ET licensees. Incumbent FMS licensees will maintain primary status for the following technical
changes:

     (a) Decreases in power;

     (b) Minor changes (increases or decreases) in antenna height;

     (c) Minor location changes (up to two seconds);

     (d) Any data correction which does not involve a change in the location of an existing facility;

     (e) Reductions in authorized bandwidth;

     (f) Minor changes (increases or decreases) in structure height;

     (g) Changes (increases or decreases) in ground elevation that do not affect centerline height;

     (h) Minor equipment changes.

[61 FR 29695, June 12, 1996, as amended at 62 FR 12759, Mar. 18, 1997; 65 FR 38327, June 20, 2000]

§ 101.82 Reimbursement and relocation expenses in the 2110–2150 MHz and 2160–2200 MHz
bands.
     (a) Reimbursement and relocation expenses for the 2110–2130 MHz and 2160–2200 MHz bands are
         addressed in §§ 27.1160–27.1174.

     (b) Cost-sharing obligations between AWS and MSS (space-to-Earth downlink). Whenever an ET licensee
         (AWS or Mobile Satellite Service for space-to-Earth downlink in the 2130–2150 or 2180–2200 MHz
         bands) relocates an incumbent paired microwave link with one path in the 2130–2150 MHz band and the
         paired path in the 2180–2200 MHz band, the relocator is entitled to reimbursement of 50 percent of its
         relocation costs (see paragraph (e)) of this section from any other AWS licensee or MSS space-to-Earth
         downlink operator which would have been required to relocate the same fixed microwave link as set forth
         in paragraphs (c) and (d) of this section.

     (c) Cost-sharing obligations for MSS (space-to-Earth downlinks). For an MSS space-to-Earth downlink, the
         cost-sharing obligation is based on the interference criteria for relocation, i.e., TIA TSB 86 or any standard
         successor, relative to the relocated microwave link. Subsequently entering MSS space-to-Earth downlink

47 CFR 101.82(c) (enhanced display)                                                                            page 29 of 196
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                                                                                                           47 CFR 101.82(d)
Fixed Microwave Services

           operators must reimburse AWS or MSS space-to-Earth relocators (see paragraph (e)) of this section
           before the later entrant may begin operations in these bands, unless the later entrant can demonstrate
           that it would not have interfered with the microwave link in question.

     (d) Cost-sharing obligations among terrestrial stations. For terrestrial stations (AWS), cost-sharing obligations
         are governed by §§ 27.1160 through 27.1174 of this chapter; provided, however, that MSS operators are
         not obligated to reimburse voluntarily relocating FMS incumbents in the 2180–2200 MHz band. (AWS
         reimbursement and cost-sharing obligations relative to voluntarily relocating FMS incumbents are
         governed by § 27.1166 of this chapter).

     (e) The total costs of which 50 percent is to be reimbursed will not exceed $250,000 per paired fixed
         microwave link relocated, with an additional $150,000 permitted if a new or modified tower is required.

[71 FR 29843, May 24, 2006, as amended at 78 FR 8272, Feb. 5, 2013]

              POLICIES GOVERNING FIXED SERVICE RELOCATION FROM THE 18.58–19.30 GHZ BAND

Source: 65 FR 54173, Sept. 7, 2000, unless otherwise noted.

§ 101.83 Modification of station license.
Permissible changes in equipment operating in the band 18.3–19.3 GHz: Notwithstanding other provisions of this
section, stations that remain co-primary under the provisions of § 101.147(r) may not make modifications to their
systems that increase interference to satellite earth stations, or result in a facility that would be more costly to
relocate.

[68 FR 16968, Apr. 8, 2003]

§ 101.85 Transition of the 18.3–19.3 GHz band from the terrestrial fixed services to the fixed-
satellite service (FSS).
Fixed services (FS) frequencies in the 18.3–19.3 GHz bands listed in §§ 21.901(e), 74.502(c), 74.602(g), and
78.18(a)(4) and § 101.147(a) and (r) of this chapter have been allocated for use by the fixed-satellite service (FSS).
The rules in this section provide for a transition period during which FSS licensees may relocate existing FS
licensees using these frequencies to other frequency bands, media or facilities.

     (a) FSS licensees may negotiate with FS licensees authorized to use frequencies in the 18.3–19.30 GHz
         bands for the purpose of agreeing to terms under which the FS licensees would:

           (1) Relocate their operations to other frequency bands, media or facilities; or alternatively

           (2) Accept a sharing arrangement with the FSS licensee that may result in an otherwise impermissible
               level of interference to the FSS operations.

     (b)

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                                                                                                     47 CFR 101.85(b)(1)
Fixed Microwave Services

           (1) FS operations in the 18.3–18.58 GHz band that remain co-primary under the provisions of §§
               21.901(e), 74.502(c), 74.602(d), 78.18(a)(4) and 101.147(r) of this chapter will continue to be co-
               primary with the FSS users of this spectrum until November 19, 2012 or until the relocation of the
               fixed service operations, whichever occurs sooner.

           (2) FS operations in the 18.58–19.3 GHz band that remain co-primary under the provisions of §§
               21.901(e), 74.502(c), 74.602(d), 78.18(a)(4) and 101.147(r) of this chapter will continue to be co-
               primary with the FSS users of this spectrum until June 8, 2010 or until the relocation of the fixed
               service operations, whichever occurs sooner, except for operations in the band 19.26–19.3 GHz and
               low power systems operating pursuant to § 101.47(r)(10), which shall operate on a co-primary basis
               until October 31, 2011.

           (3) If no agreement is reached during the negotiations pursuant to § 101.85(a), an FSS licensee may
               initiate relocation procedures. Under the relocation procedures, the incumbent is required to relocate,
               provided that the FSS licensee meets the conditions of § 101.91.

     (c) Negotiation periods are defined as follows:

           (1) Non-public safety incumbents will have a two-year negotiation period.

           (2) Public safety incumbents will have a three-year negotiation period.

[65 FR 54173, Sept. 7, 2000, as amended at 66 FR 63516, Dec. 7, 2001; 68 FR 16968, Apr. 8, 2003]

§ 101.89 Negotiations.
     (a) The negotiation is triggered by the fixed-satellite service (FSS) licensee, who must contact the fixed
         services (FS) licensee and request that negotiations begin.

     (b) Once negotiations have begun, an FS licensee may not refuse to negotiate and all parties are required to
         negotiate in good faith. Good faith requires each party to provide information to the other that is
         reasonably necessary to facilitate the relocation process. In evaluating claims that a party has not
         negotiated in good faith, the FCC will consider, inter alia, the following factors:

           (1) Whether the FSS licensee has made a bona fide offer to relocate the FS licensee to comparable
               facilities in accordance with § 101.91(b);

           (2) If the FS licensee has demanded a premium, the type of premium requested (e.g., whether the
               premium is directly related to relocation, such as system-wide relocations and analog-to-digital
               conversions, versus other types of premiums), and whether the value of the premium as compared
               to the cost of providing comparable facilities is disproportionate (i.e., whether there is a lack of
               proportion or relation between the two);

           (3) What steps the parties have taken to determine the actual cost of relocation to comparable facilities;

           (4) Whether either party has withheld information requested by the other party that is necessary to
               estimate relocation costs or to facilitate the relocation process.

     (c) Any party alleging a violation of our good faith requirement must attach an independent estimate of the
         relocation costs in question to any documentation filed with the Commission in support of its claim. An
         independent cost estimate must include a specification for the comparable facility and a statement of the
         costs associated with providing that facility to the incumbent licensee.

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                                                                                                          47 CFR 101.89(d)
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     (d) Negotiations will commence when the FSS licensee informs the FS licensee in writing of its desire to
         negotiate. Negotiations will be conducted with the goal of providing the FS licensee with comparable
         facilities, defined as facilities possessing the following characteristics:

           (1) Throughput. Communications throughput is the amount of information transferred within a system in
               a given amount of time. If analog facilities are being replaced with analog, the FSS licensee is
               required to provide the FS licensee with an equivalent number of 4 kHz voice channels. If digital
               facilities are being replaced with digital, the FSS licensee must provide the FS licensee with
               equivalent data loading bits per second (bps). FSS licensees must provide FS licensees with enough
               throughput to satisfy the FS licensee's system use at the time of relocation, not match the total
               capacity of the FS system.

           (2) Reliability. System reliability is the degree to which information is transferred accurately within a
               system. FSS licensees must provide FS licensees with reliability equal to the overall reliability of their
               system. For digital data systems, reliability is measured by the percent of time the bit error rate (BER)
               exceeds a desired value, and for analog or digital voice transmissions, it is measured by the percent
               of time that audio signal quality meets an established threshold. If an analog voice system is
               replaced with a digital voice system, only the resulting frequency response, harmonic distortion,
               signal-to-noise ratio and its reliability will be considered in determining comparable reliability.

           (3) Operating costs. Operating costs are the cost to operate and maintain the FS system. FSS licensees
               must compensate FS licensees for any increased recurring costs associated with the replacement
               facilities (e.g., additional rental payments, increased utility fees) for five years after relocation. FSS
               licensees may satisfy this obligation by making a lump-sum payment based on present value using
               current interest rates. Additionally, the maintenance costs to the FS licensee must be equivalent to
               the 18 GHz system in order for the replacement system to be considered comparable.

§ 101.91 Involuntary relocation procedures.
     (a) If no agreement is reached during the negotiations period, an FSS licensee may initiate relocation
         procedures under the Commission's rules. FSS licensees are obligated to pay to relocate only the specific
         microwave links from which their systems may receive interference. Under these procedures, the FS
         licensee is required to relocate, provided that the FSS licensee:

           (1) Guarantees payment of relocation costs, including all engineering, equipment, site and FCC fees, as
               well as any legitimate and prudent transaction expenses incurred by the FS licensee that are directly
               attributable to the relocation, subject to a cap of two percent of the hard costs involved. Hard costs
               are defined as the actual costs associated with providing a replacement system, such as equipment
               and engineering expenses. FSS licensees are not required to pay FS licensees for internal resources
               devoted to the relocation process. FSS licensees are not required to pay for transaction costs
               incurred by FS licensees during the negotiations once the negotiation is initiated, or for fees that
               cannot be legitimately tied to the provision of comparable facilities;

           (2) Completes all activities necessary for implementing the replacement facilities, including engineering
               and cost analysis of the relocation procedure and, if radio facilities are used, identifying and
               obtaining, on the incumbents' behalf, new microwave frequencies and frequency coordination; and

           (3) Builds the replacement system and tests it for comparability with the existing 18 GHz system.

     (b) Comparable facilities. The replacement system provided to an incumbent during a relocation must be at
         least equivalent to the existing FS system with respect to the following three factors:

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                                                                                                         47 CFR 101.91(b)(1)
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           (1) Throughput. Communications throughput is the amount of information transferred within a system in
               a given amount of time. If analog facilities are being replaced with analog, the FSS licensee is
               required to provide the FS licensee with an equivalent number of 4 kHz voice channels. If digital
               facilities are being replaced with digital, the FSS licensee must provide the FS licensee with
               equivalent data loading bits per second (bps). FSS licensees must provide FS licensees with enough
               throughput to satisfy the FS licensee's system use at the time of relocation, not match the total
               capacity of the FS system.

           (2) Reliability. System reliability is the degree to which information is transferred accurately within a
               system. FSS licensees must provide FS licensees with reliability equal to the overall reliability of their
               system. For digital data systems, reliability is measured by the percent of time the bit error rate (BER)
               exceeds a desired value, and for analog or digital voice transmissions, it is measured by the percent
               of time that audio signal quality meets an established threshold. If an analog voice system is
               replaced with a digital voice system, only the resulting frequency response, harmonic distortion,
               signal-to-noise ratio and its reliability will be considered in determining comparable reliability.

           (3) Operating costs. Operating costs are the cost to operate and maintain the FS system. FSS licensees
               must compensate FS licensees for any increased recurring costs associated with the replacement
               facilities (e.g., additional rental payments, increased utility fees) for five years after relocation. FSS
               licensees may satisfy this obligation by making a lump-sum payment based on present value using
               current interest rates. Additionally, the maintenance costs to the FS licensee must be equivalent to
               the 18 GHz system in order for the replacement system to be considered comparable.

     (c) The FS licensee is not required to relocate until the alternative facilities are available to it for a reasonable
         time to make adjustments, determine comparability, and ensure a seamless handoff. The FS licensee may
         take up to 12 months to make such adjustments and perform such testing.

     (d) If the FS licensee demonstrates to the Commission that the new facilities are not comparable to the
         former facilities, the Commission may require the FSS licensee to further modify or replace the FS
         licensee's equipment.

[65 FR 54173, Sept. 7, 2000, as amended at 66 FR 63516, Dec. 7, 2001]

§ 101.95 Sunset provisions for licensees in the 18.30–19.30 GHz band.
     (a) FSS licensees are not required to pay relocation costs after the relocation rules sunset (see §§ 74.502(c),
         74.602(g), and 78.18(a)(4) of this chapter, and 101.147 (a) and (r)). Once the relocation rules sunset, an
         FSS licensee may require the incumbent to cease operations, provided that the FSS licensee intends to
         turn on a system within interference range of the incumbent, as determined by TIA Bulletin 10–F or any
         standard successor. FSS licensee notification to the affected FS licensee must be in writing and must
         provide the incumbent with no less than six months to vacate the spectrum. After the six-month notice
         period has expired, the FS licensee must turn its license back into the Commission, unless the parties
         have entered into an agreement which allows the FS licensee to continue to operate on a mutually agreed
         upon basis.

     (b) If the parties cannot agree on a schedule or an alternative arrangement, requests for extension will be
         accepted and reviewed on a case-by-case basis. The Commission will grant such extensions only if the
         incumbent can demonstrate that:

           (1) It cannot relocate within the six-month period (e.g., because no alternative spectrum or other
               reasonable option is available); and

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           (2) The public interest would be harmed if the incumbent is forced to terminate operations (e.g., if public
               safety communications services would be disrupted).

§ 101.97 Future licensing in the 18.30–19.30 GHz band.
     (a) All major modifications and extensions to existing FS systems in the 18.3–18.58 band after November 19,
         2002, or in the 18.58–19.30 band after June 8, 2000 (with the exception of certain low power operations
         authorized under § 101.147(r)(10)) will be authorized on a secondary basis to FSS systems. All other
         modifications will render the modified FS license secondary to FSS operations, unless the incumbent
         affirmatively justifies primary status and the incumbent FS licensee establishes that the modification
         would not add to the relocation costs for FSS licensees. Incumbent FS licensees will maintain primary
         status for the following technical changes:

           (1) Decreases in power;

           (2) Minor changes (increases or decreases) in antenna height;

           (3) Minor location changes (up to two seconds);

           (4) Any data correction which does not involve a change in the location of an existing facility;

           (5) Reductions in authorized bandwidth;

           (6) Minor changes (increases or decreases) in structure height;

           (7) Changes (increases or decreases) in ground elevation that do not affect centerline height;

           (8) Minor equipment changes.

           (9) Changes in ownership or control.

     (b) The provisions of § 101.83 are applicable, notwithstanding any other provisions of this section.

[65 FR 54173, Sept. 7, 2000, as amended at 66 FR 63516, Dec. 7, 2001; 68 FR 19698, Apr. 8, 2003]

Subpart C—Technical Standards
§ 101.101 Frequency availability.

                                                        Radio service
   Frequency        Common            Private    Broadcast                    Other
  band (MHz)         carrier           radio      auxiliary   (parts 15, 21, 22, 24, 25, 27, 74, 78 &   Notes
                   (Part 101)       (Part 101)   (Part 74)                     100)
 928–929          MAS            MAS                          PRS
 932.0–932.5      MAS            MAS                          PRS
 932.5–935.0      CC             OFS                                                                    (1).
 941.0–941.5      MAS            MAS                          PRS
 941.5–944.0      CC             OFS             Aural BAS                                              (1).
 952–958                         OFS/MAS                      PRS
 958–960          MAS            OFS
 1850–1990                       OFS                          PCS
 2110–2130        CC                                          PET

47 CFR 101.101 (enhanced display)                                                                                   page 34 of 196
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                                                          Radio service
   Frequency        Common            Private    Broadcast                    Other
  band (MHz)         carrier           radio      auxiliary   (parts 15, 21, 22, 24, 25, 27, 74, 78 &   Notes
                   (Part 101)       (Part 101)   (Part 74)                     100)
 2130–2150                       OFS                          PET
 2160–2180        CC                                          ET
 2180–2200                       OFS                          PET
 2450–2500        CC             OFS             TV BAS       ISM                                       F/M/
                                                                                                        TF
 2650–2690                       OFS                          MDS/ITFS
 3700–4200        CC LTTS        OFS                          SAT, ET                                   (2).
 5925–6425        CC LTTS        OFS                          SAT
 6425–6525        LTTS           OFS             TV BAS       CARS                                      M.
 6525–6875        CC             OFS
 6875–7125        CC             OFS             TV BAS       CARS
 10,550–10,680 CC                OFS DEMS
 10,700–11,700 CC                OFS                          SAT
 12,200–12,700 MVDDS             MVDDS,                       DBS, NGSO FSS
                                 POFS
 12,700–13,250 CC LTTS           OFS             TV BAS       CARS                                      F/M/
                                                                                                        TF.
 17,700–18,580 CC                OFS             TV BAS       SAT CARS
 17,700–18,300 CC                OFS             TV BAS       CARS
 18,300–18,580 CC                OFS             TV BAS       CARS SAT
 18,580–18,820 CC                OFS             Aural BAS    SAT
 18,820–18,920 CC                OFS                          SAT
 18,920–19,160 CC                OFS             Aural BAS    SAT
 19,160–19,260 CC                OFS                          SAT
 19,260–19,700 CC                OFS             TV BAS       CARS SAT
 21,200–23,600 CC LTTS           OFS                                                                    TF.
 24,250–25,250 CC                OFS
 29,100–29,250 LMDS              LMDS                         SAT
 31,000–31,300 CC LMDS           OFS LMDS                                                               F/M/
               LTTS                                                                                     TF.
 71,000–76,000 CC                OFS                          25                                        F/M/
                                                                                                        TF
 81,000–86,000 CC                OFS                          25                                        F/M/
                                                                                                        TF
 92,000–95,000 CC                OFS                          15                                        F/M/
                                                                                                        TF.

BAS: Broadcast Auxiliary Service—(Part 74)

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CARS: Cable Television Relay Service—(Part 78)

CC: Common Carrier Fixed Point-to-Point Microwave Service—(Part 101, Subparts C & I)

DBS: Direct Broadcast Satellite—(Part 100)

DEMS: Digital Electronic Message Service—(Part 101, Subpart G)

ISM: Industrial, Scientific & Medical—(Part 18)

ITFS: Instructional Television Fixed Service—(Part 74)

LTTS: Local Television Transmission Service—(Part 101, Subpart J)

MAS: Multiple Address System—(Part 101)

MDS: Multipoint Distribution Service—(Part 21)

OFS: Private Operational Fixed Point-to-Point Microwave Service—(Part 101, Subparts C & H)

PCS: Personal Communications Service—(Part 24)

PET: Emerging Technologies (per ET Dkt. No. 92–9, not yet assigned)

PRS: Paging and Radiotelephone Service—(Part 22, Subpart E)

SAT: Fixed Satellite Service—(Part 25)

Notes:

F—Fixed

M—Mobile

TF—Temporary Fixed

(1)—Applications for frequencies in the 932.5–935/941.5–944 MHz bands may be filed initially
during a one-week period to be announced by public notice. After these applications have been
processed, the Commission will announce by public notice a filing date for remaining frequencies.
From this filing date forward, applications will be processed on a daily first-come, first-served basis.

(2) Frequencies in this band are shared with stations in the fixed satellite service outside the
contiguous United States. Applications for new permanent or temporary facilities in these bands
will not be accepted for locations in the contiguous United States. Licensees, as of April 19, 2018,
of existing permanent and temporary point-to-point Fixed Service links in the contiguous United
States have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700–4,200
MHz band. Such licensees may seek reimbursement of their reasonable costs based on the
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                                                                                                                 47 CFR 101.103
Fixed Microwave Services

“comparable facilities” standard used for the transition of microwave links out of other bands, see
§ 101.73(d) of this chapter (defining comparable facilities as facilities possessing certain
characteristics in terms of throughput, reliability and operating costs) subject to the demonstration
requirements and reimbursement administrative provisions administrative provisions in part 27,
subpart O, of this chapter.

[61 FR 26677, May 28, 1996, as amended at 62 FR 23165, Apr. 29, 1997; 62 FR 24582, May 6, 1997; 65 FR 38327, June 20, 2000;
65 FR 54175, Sept. 7, 2000; 65 FR 59357, Oct. 5, 2000; 67 FR 43037, June 28, 2002; 69 FR 3266, Jan. 23, 2004; 69 FR 72047, Dec.
10, 2004; 70 FR 4787, Jan. 31, 2005; 76 FR 59571, Sept. 27, 2011; 81 FR 79944, Nov. 14, 2016; 85 FR 22889, Apr. 23, 2020]

§ 101.103 Frequency coordination procedures.
     (a) Assignment of frequencies will be made only in such a manner as to facilitate the rendition of
         communication service on an interference-free basis in each service area. Unless otherwise indicated,
         each frequency available for use by stations in these services will be assigned exclusively to a single
         applicant in any service area. All applicants for, and licensees of, stations in these services must
         cooperate in the selection and use of the frequencies assigned in order to minimize interference and
         thereby obtain the most effective use of the authorized facilities. In the event harmful interference occurs
         or appears likely to occur between two or more radio systems and such interference cannot be resolved
         between the licensees thereof, the Commission may specify a time sharing arrangement for the stations
         involved or may, after notice and opportunity for hearing, require the licensees to make such changes in
         operating techniques or equipment as it may deem necessary to avoid such interference.

     (b)

           (1) Operations in the bands 31,000–31,075 MHz and 31,225–31,300 MHz licensed prior to March 11,
               1997, were licensed on an unprotected basis and are subject to harmful interference from similarly
               licensed operations in that band.

                 (i)   Operations licensed in the Local Mulitpoint Distribution Service and those operations licensed
                       prior to March 11, 1997, except in the Local Television Transmission Service, operating in these
                       bands are equally protected against harmful interference from each other.

                 (ii) In the case of operations licensed prior to March 11, 1997, except in the Local Television
                      Transmission Service, that are licensed on a point-to-radius basis, LMDS licensees shall be
                      subject to the protection requirement established in this section in the case of existing links
                      operated by such licensees, and in the case of links added by such licensees in the future in
                      accordance with the terms of their point-to-radius licenses.

                (iii) An LMDS licensee may not initiate operations within the point-to-radius area licensed to an
                      operator (other than an operator in the Local Television Transmission Service) prior to March
                      11, 1997, even if such operator has not initiated operations to the fullest extent of the license.
                      An LMDS licensee, however, may initiate operations at the border of such operator's license
                      area without prior coordination if the LMDS licensee's operations would not cause harmful
                      interference to the other operator's existing operations.

                (iv) An operator (other than an operator in the Local Television Transmission Service) licensed on a
                     point-to-radius basis prior to March 11, 1997, may add additional stations within its license
                     area. Such operator shall coordinate with any affected LMDS licensee if its new operations
                     might cause harmful interference to the existing operations of such LMDS licensee.

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                 (v) Operations licensed prior to March 11, 1997, on a point-to-point basis may not be extended or
                     otherwise modified through the addition of point-to-point links. Such operations shall be limited
                     to the use of frequency pairs licensed as of March 11, 1997. Operations licensed in the Local
                     Television Transmission Service as of March 11, 1997, may continue to operate, but such
                     operators may not expand existing operations nor initiate new operations.

           (2) Operations in the 31,075–31,225 MHz band licensed prior to March 11, 1997, shall receive no
               protection against harmful interference from authorized operations in the Local Multipoint
               Distribution Service in that band.

           (3) Non-LMDS operations in the entire 31,000–31,300 MHz band licensed after March 11, 1997, based
               on applications refiled no later than June 26, 1998 are unprotected with respect to each other and
               subject to harmful interference from each other.

                 (i)   Such operations and any operations licensed prior to March 11, 1997, in the band are
                       unprotected with respect to each other and subject to harmful interference from each other.

                 (ii) Such operations are licensed on a secondary basis to LMDS operations licensed in the band,
                      may not cause interference to LMDS operations, and are not protected from interference from
                      LMDS operations.

                (iii) Such operations licensed on a point-to-point basis may not be extended or otherwise modified
                      through the addition of point-to-point links. Such operations licensed on a point-to-radius basis
                      may add additional stations within the licensed area.

     (c) Frequency diversity transmission will not be authorized in these services in the absence of a factual
         showing that the required communications cannot practically be achieved by other means. Where
         frequency diversity is deemed to be justified on a protection channel basis, it will be limited to one
         protection channel for the bands 3,700–4,200, 5925–6425, and 6525–6875 MHz, and a ratio of one
         protection channel for three working channels for the bands 10,550–10,680 and 10,700–11,700 MHz. In
         the bands 3,700–4,200, 5,925–6,425, and 6525–6875 MHz, no frequency diversity protection channel will
         be authorized unless there is a minimum of three working channels, except that where a substantial
         showing is made that a total of three working channels will be required within three years, a protection
         channel may be authorized simultaneously with the first working channel. A protection channel authorized
         under such exception will be subject to termination if applications for the third working channel are not
         filed within three years of the grant date of the applications for the first working channel. Where
         equipment employing digital modulation techniques with cross-polarized operation on the same
         frequency is used, the protection channel authorized under the above conditions may be considered to
         consist of both polarizations of the protection frequency where such is shown to be necessary.

     (d) Frequency coordination. For each frequency authorized under this part, the following frequency usage
         coordination procedures will apply:

           (1) General requirements. Proposed frequency usage must be prior coordinated with existing licensees,
               permittees and applicants in the area, and other applicants with previously filed applications, whose
               facilities could affect or be affected by the new proposal in terms of frequency interference on active
               channels, applied-for channels, or channels coordinated for future growth. Coordination must be
               completed prior to filing an application for regular authorization, or a major amendment to a pending
               application, or any major modification to a license. In coordinating frequency usage with stations in
               the fixed satellite service, applicants must also comply with the requirements of § 101.21(f). In
               engineering a system or modification thereto, the applicant must, by appropriate studies and
               analyses, select sites, transmitters, antennas and frequencies that will avoid interference in excess
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                                                                                                        47 CFR 101.103(d)(2)
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                of permissible levels to other users. All applicants and licensees must cooperate fully and make
                reasonable efforts to resolve technical problems and conflicts that may inhibit the most effective
                and efficient use of the radio spectrum; however, the party being coordinated with is not obligated to
                suggest changes or re-engineer a proposal in cases involving conflicts. Applicants should make
                every reasonable effort to avoid blocking the growth of systems as prior coordinated. The applicant
                must identify in the application all entities with which the technical proposal was coordinated. In the
                event that technical problems are not resolved, an explanation must be submitted with the
                application. Where technical problems are resolved by an agreement or operating arrangement
                between the parties that would require special procedures be taken to reduce the likelihood of
                interference in excess of permissible levels (such as the use of artificial site shielding) or would
                result in a reduction of quality or capacity of either system, the details thereof may be contained in
                the application.

           (2) Coordination procedure guidelines are as follows:

                 (i)   Coordination involves two separate elements: notification and response. Both or either may be
                       oral or in written form. To be acceptable for filing, all applications and major technical
                       amendments must certify that coordination, including response, has been completed. The
                       names of the licensees, permittees and applicants with which coordination was accomplished
                       must be specified. If such notice and/or response is oral, the party providing such notice or
                       response must supply written documentation of the communication upon request;

                 (ii) Notification must include relevant technical details of the proposal. At minimum, this should
                      include, as applicable, the following:

                       Applicant's name and address.

                       Transmitting station name.

                       Transmitting station coordinates.

                       Frequencies and polarizations to be added, changed or deleted.

                       Transmitting equipment type, its stability, actual output power, emission designator, and type of
                       modulation(s) (loading). Notification shall indicate if modulations lower than the values listed in
                       the table to § 101.141(a)(3) of the Commission's rules will be used.

                       Transmitting antenna type(s), model, gain and, if required, a radiation pattern provided or
                       certified by the manufacturer.

                       Transmitting antenna center line height(s) above ground level and ground elevation above
                       mean sea level.

                       Receiving station name.

                       Receiving station coordinates.

                       Receiving antenna type(s), model, gain, and, if required, a radiation pattern provided or certified
                       by the manufacturer.

                       Receiving antenna center line height(s) above ground level and ground elevation above mean
                       sea level.

                       Path azimuth and distance.

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                                                                                                   47 CFR 101.103(d)(2)(iii)
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                      Estimated transmitter transmission line loss expressed in dB.

                      Estimated receiver transmission line loss expressed in dB.

                      For a system utilizing ATPC, maximum transmit power, coordinated transmit power, and
                      nominal transmit power.

                       Note: The position location of antenna sites shall be determined to an accuracy of no
                       less than ±1 second in the horizontal dimensions (latitude and longitude) and ±1 meter
                       in the vertical dimension (ground elevation) with respect to the National Spatial
                       Reference System.

                (iii) For transmitters employing digital modulation techniques, the notification should clearly identify
                      the type of modulation. Upon request, additional details of the operating characteristics of the
                      equipment must also be furnished;

                (iv) Response to notification should be made as quickly as possible, even if no technical problems
                     are anticipated. Any response to notification indicating potential interference must specify the
                     technical details and must be provided to the applicant, in writing, within the 30-day notification
                     period. Every reasonable effort should be made by all applicants, permittees and licensees to
                     eliminate all problems and conflicts. If no response to notification is received within 30 days,
                     the applicant will be deemed to have made reasonable efforts to coordinate and may file its
                     application without a response;

                 (v) The 30-day notification period is calculated from the date of receipt by the applicant, permittee,
                     or licensee being notified. If notification is by mail, this date may be ascertained by:

                      (A) The return receipt on certified mail;

                      (B) The enclosure of a card to be dated and returned by the recipient; or

                      (C) A conservative estimate of the time required for the mail to reach its destination. In the
                          last case, the estimated date when the 30-day period would expire should be stated in the
                          notification.

                (vi) An expedited prior coordination period (less than 30 days) may be requested when deemed
                     necessary by a notifying party. The coordination notice should be identified as “expedited” and
                     the requested response date should be clearly indicated. However, circumstances preventing a
                     timely response from the receiving party should be accommodated accordingly. It is the
                     responsibility of the notifying party to receive written concurrence (or verbal, with written to
                     follow) from affected parties or their coordination representatives.

                (vii) All technical problems that come to light during coordination must be resolved unless a
                      statement is included with the application to the effect that the applicant is unable or unwilling
                      to resolve the conflict and briefly the reason therefor;

                (viii) Where a number of technical changes become necessary for a system during the course of
                       coordination, an attempt should be made to minimize the number of separate notifications for
                       these changes. Where the changes are incorporated into a completely revised notice, the items
                       that were changed from the previous notice should be identified. When changes are not
                       numerous or complex, the party receiving the changed notification should make an effort to

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                                                                                                   47 CFR 101.103(d)(2)(ix)
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                       respond in less than 30 days. When the notifying party believes a shorter response time is
                       reasonable and appropriate, it may be helpful for that party to so indicate in the notice and
                       perhaps suggest a response date;

                (ix) If, after coordination is successfully completed, it is determined that a subsequent change
                     could have no impact on some parties receiving the original notification, these parties must be
                     notified of the change and of the coordinator's opinion that no response is required;

                 (x) Applicants, permittees and licensees should supply to all other applicants, permittees and
                     licensees within their areas of operations, the name, address and telephone number of their
                     coordination representatives. Upon request from coordinating applicants, permittees and
                     licensees, data and information concerning existing or proposed facilities and future growth
                     plans in the area of interest should be furnished unless such request is unreasonable or would
                     impose a significant burden in compilation;

                (xi) Parties should keep other parties with whom they are coordinating advised of changes in plans
                     for facilities previously coordinated. If applications have not been filed 6 months after
                     coordination was initiated, parties may assume that such frequency use is no longer desired
                     unless a second notification has been received within 10 days of the end of the 6 month period.
                     Renewal notifications are to be sent to all originally notified parties, even if coordination has not
                     been successfully completed with those parties; and

                (xii) Any frequency reserved by a licensee for future use in the bands subject to this part must be
                      released for use by another licensee, permittee or applicant upon a showing by the latter that it
                      requires an additional frequency and cannot coordinate one that is not reserved for future use.

     (e) Where frequency conflicts arise between co-pending applications in the Private Operational Fixed Point-to-
         Point Microwave, Common Carrier Fixed Point-to-Point Microwave and Local Television Transmission
         Services, it is the obligation of the later filing applicant to amend his application to remove the conflict,
         unless it can make a showing that the conflict cannot be reasonably eliminated. Where a frequency
         conflict is not resolved and no showing is submitted as to why the conflict cannot be resolved, the
         Commission may grant the first filed application and dismiss the later filed application(s) after giving the
         later filing applicant(s) 30 days to respond to the proposed action.

     (f)

           (1) Coordination and information sharing between MVDDS and NGSO FSS licensees in the 12.2 GHz to
               12.7 GHz band. Prior to the construction or addition of an MVDDS transmitting antenna in this
               frequency band, the MVDDS licensee shall provide notice of intent to construct the proposed
               antenna site to NGSO FSS licensees operating in the 12.2–12.7 GHz frequency band and maintain an
               Internet web site of all existing transmitting sites and transmitting antennas that are scheduled for
               operation within one year including the “in service” dates. In addition to the location of a proposed
               new transmitting antenna, MVDDS licensees shall provide to the NGSO FSS licensees a technical
               description of the operating characteristics of the proposed transmission facility. At a minimum, the
               following information must be included in each notification:

                 (i)   Name of MVDDS licensee;

                 (ii) Geographic location (including NAD83 coordinates) of proposed MVDDS transmitting antenna;

                (iii) Maximum EIRP per 24 MHz;

                (iv) Height above average terrain of the transmitting antenna;

47 CFR 101.103(f)(1)(iv) (enhanced display)                                                                 page 41 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                       47 CFR 101.103(f)(1)(v)
Fixed Microwave Services

                 (v) Type of antenna to be utilized;

                 (vi) Main beam azimuth and altitude orientation for the proposed transmitting antenna;

                 (vii) Theoretically modeled antenna radiation pattern;

                 (viii) Type(s) of emissions, and;

                 (ix) Description of the proposed service area.

           (2) If the proposed MVDDS antenna site does not meet the minimum spacing requirements on the date
               of original notification or on subsequent annual anniversary dates of non-operation as set forth in §
               101.129, then the MVDDS licensee shall not construct the proposed transmission facility unless all
               NGSO FSS licensees having active subscribers within the minimum separation distance agree to a
               shorter spacing. Nothing in this section shall preclude MVDDS and NGSO FSS licensees from
               agreeing to accept the siting of new MVDDS transmitting antennas that do no meet the minimum
               distance set forth in § 101.129. Incumbent point-to-point licensees' (those not licensed as MVDDS)
               facilities are to be operated in the band 12,200–12,700 MHz following the procedures, technical
               standards, and requirements of § 101.105 in order to protect stations providing Direct Broadcast
               Satellite Service.

     (g) Licensees operating in Basic Trading Areas authorized in the Local Multipoint Distribution Service.

           (1) When the transmitting facilities in a Basic Trading Area (BTA) are to be operated in the bands
               29,100–29,250 MHz and 31,000–31,300 MHz and the facilities are located within 20 kilometers of
               the boundaries of a BTA, each licensee must complete the frequency coordination process of
               paragraph (d)(2) of this section with respect to neighboring BTA licensees that may be affected by
               its operations prior to initiating service. In addition, all licensed transmitting facilities operating in the
               bands 31,000–31,075 MHz and 31,225–31,300 MHz and located within 20 kilometers of neighboring
               facilities must complete the frequency coordination process of paragraph (d)(2) of this section with
               respect to such authorized operations before initiating service.

           (2) Response to notification should be made as quickly as possible, even if no technical problems are
               anticipated. Any response to notification indicating potential interference must specify the technical
               details and must be provided to the applicant, either electronically or in writing, within the 30-day
               notification period. Every reasonable effort should be made by all licensees to eliminate all problems
               and conflicts. If no response to notification is received within 30 days, the licensee will be deemed to
               have made reasonable efforts to coordinate and commence operation without a response. The
               beginning of the 30-day period is determined pursuant to paragraph (d)(2)(v) of this section.

     (h) Special requirements for operations in the band 29,100–29,250 MHz.

           (1)

                  (i)   Local Multipoint Distribution Service (LMDS) receive stations operating on frequencies in the
                        29,100–29,250 MHz band within a radius of 75 nautical miles of the geographic coordinates
                        provided by a non-GSO-MSS licensee pursuant to § 101.113(c)(2) or (c)(3)(i) (the “feeder link
                        earth station complex protection zone”) shall accept any interference caused to them by such
                        earth station complexes and shall not claim protection from such earth station complexes.

47 CFR 101.103(h)(1)(i) (enhanced display)                                                                     page 42 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                     47 CFR 101.103(h)(1)(ii)
Fixed Microwave Services

                 (ii) LMDS licensees operating on frequencies in the 29,100–29,250 MHz band outside a feeder link
                      earth station complex protection zone shall cooperate fully and make reasonable efforts to
                      resolve technical problems with the non-GSO MSS licensee to the extent that transmissions
                      from the non-GSO MSS operator's feeder link earth station complex interfere with an LMDS
                      receive station.

           (2) No more than 15 days after the release of a public notice announcing the commencement of LMDS
               auctions, feeder link earth station complexes to be licensed pursuant to § 25.257 of this chapter
               shall be specified by a set of geographic coordinates in accordance with the following requirements:
               no feeder link earth station complex may be located in the top eight (8) metropolitan statistical areas
               (MSAs), ranked by population, as defined by the Office of Management and Budget as of June 1993,
               using estimated populations as of December 1992; two (2) complexes may be located in MSAs 9
               through 25, one of which must be Phoenix, AZ (for a complex at Chandler, AZ); two (2) complexes
               may be located in MSAs 26 to 50; three (3) complexes may be located in MSAs 51 to 100, one of
               which must be Honolulu, Hawaii (for a complex at Waimea); and the three (3) remaining complexes
               must be located at least 75 nautical miles from the borders of the 100 largest MSAs or in any MSA
               not included in the 100 largest MSAs. Any location allotted for one range of MSAs may be taken
               from an MSA below that range.

           (3)

                 (i)   Any non-GSO MSS licensee may at any time specify sets of geographic coordinates for feeder
                       link earth station complexes with each earth station contained therein to be located at least 75
                       nautical miles from the border of the 100 largest MSAs.

                 (ii) For purposes of paragraph (h)(3)(i) of this section, non-GSO MSS feeder link earth station
                      complexes shall be entitled to accommodation only if the affected non-GSO MSS licensee
                      preapplies to the Commission for a feeder link earth station complex or certifies to the
                      Commission within sixty days of receiving a copy of an LMDS application that it intends to file
                      an application for a feeder link earth station complex within six months of the date of receipt of
                      the LMDS application.

                 (iii) If said non-GSO MSS licensee application is filed later than six months after certification of the
                       Commission, the LMDS and non-GSO MSS entities shall still cooperate fully and make
                       reasonable efforts to resolve technical problems, but the LMDS licensee shall not be obligated
                       to re-engineer its proposal or make changes to its system.

           (4) LMDS licensees or applicants proposing to operate hub stations on frequencies in the
               29,100–29,250 MHz band at locations outside of the 100 largest MSAs or within a distance of 150
               nautical miles from a set of geographic coordinates specified under paragraphs (h)(2) or (h)(3)(i) of
               this section shall serve copies of their applications on all non-GSO MSS applicants, permittees or
               licensees meeting the criteria specified in § 25.257(a). Non-GSO MSS licensees or applicants shall
               serve copies of their feeder link earth station applications, after the LMDS auction, on any LMDS
               applicant or licensee within a distance of 150 nautical miles from the geographic coordinates that it
               specified under § 101.113(c)(2) or (c)(3)(i). Any necessary coordination shall commence upon
               notification by the party receiving an application to the party who filed the application. The results of
               any such coordination shall be reported to the Commission within sixty days. The non-GSO MSS
               earth station licensee shall also provide all such LMDS licensees with a copy of its channel plan.

47 CFR 101.103(h)(4) (enhanced display)                                                                      page 43 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                                47 CFR 101.105
Fixed Microwave Services

[61 FR 26677, May 28, 1996, as amended at 62 FR 23165, Apr. 29, 1997; 63 FR 6105, Feb. 6, 1998; 63 FR 9448, Feb. 25, 1998; 63
FR 14039, Mar. 24, 1998; 63 FR 68983, Dec. 14, 1998; 64 FR 45893, Aug. 23, 1999; 65 FR 38328, June 20, 2000; 67 FR 43037,
June 26, 2002; 76 FR 59571, Sept. 27, 2011; 81 FR 79944, Nov. 14, 2016]

§ 101.105 Interference protection criteria.
     (a) The interference protection criteria for fixed stations subject to this part are as follows:

           (1) To long-haul analog systems, employing frequency modulated radio and frequency division
               multiplexing to provide multiple voice channels, the allowable interference level per exposure:

                 (i)   Due to co-channel sideband-to-sideband interference must not exceed 5 pwpO (Picowatts of
                       absolute noise power psophometrically weighted (pwpO), appearing in an equivalent voice
                       band channel of 300–3400 Hz); or

                 (ii) Due to co-channel carrier-beat interference must not exceed 50 pwpO.

           (2) To short-haul analog systems employing frequency modulated radio and frequency division
               multiplexing to provide multiple voice channels, the allowable interference level per exposure:

                 (i)   Due to co-channel sideband-to-sideband interference must not exceed 25 pwpO except in the
                       952–960 MHz band interference into single link fixed relay and control stations must not
                       exceed 250 pwpO per exposure; or

                 (ii) Due to co-channel carrier-beat interference must not exceed 50 pwpO except in the 952–960
                      MHz band interference into single link fixed relay and control stations must not exceed 1000
                      pwpO per exposure.

           (3) FM-TV. In analog systems employing frequency modulated radio that is modulated by a standard,
               television (visual) signal, the allowable interference level per exposure may not exceed the levels
               which would apply to long-haul or short-haul FM-FDM systems, as outlined in paragraphs (b) (1) and
               (2) of this section, having a 600–1200 voice channel capacity.

           (4) 12.2–12.7 GHz band.

                 (i)   To accommodate co-primary NGSO FSS earth stations in the 12.2–12.7 GHz band, the PFD of
                       an MVDDS transmitting system must not exceed −135 dBW/m2 in any 4 kHz band at a
                       reference point at the surface of the earth at a distance greater than 3 kilometers from the
                       MVDDS transmitting antenna.

                 (ii) To accommodate co-primary Direct Broadcast Satellite Service earth stations, an MVDDS
                      transmitting system must not exceed the EPFD levels specified in paragraph (a)(4)(ii)(B) of this
                      section at any DBS subscriber location in accordance with the procedures listed in § 101.1440
                      of this part.

                       (A) Definition of equivalent power flux density: The equivalent power flux density (EPFD) is the
                           power flux density produced at a direct broadcast service (DBS) receive earth station,
                           taking into account shielding effects and the off-axis discrimination of the receiving
                           antenna assumed to be pointing at the appropriate DBS satellite(s) from the transmitting
                           antenna of a multichannel video distribution and data service (MVDDS) transmit station.
                           The EPFD in dBW/m2 in the reference bandwidth is calculated using the following formula:

47 CFR 101.105(a)(4)(ii)(A) (enhanced display)                                                                  page 44 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                               47 CFR 101.105(a)(4)(ii)(B)
Fixed Microwave Services

     Where:

     Pout = Total output power of the MVDDS transmitter (watts) into antenna

     Gm (θm,φm = Gain of the MVDDS antenna in the direction of the DBS earth station

     Ge (θe,φe = Gain of the earth station in the direction of the MVDDS antenna

     I = Interference scaling factor for the earth station (1 dB for MVDDS transmitters employing the modulation
     discussed in Section 3.1.5 of the MITRE Report (i.e., a QPSK modulated signal passed through a square-root
     raised cosine filter). For other modulation and filtering schemes, the interference scaling factor can be
     measured using the procedures described in Appendix A of the MITRE Report available at http://www.fcc.gov/
     oet/info/mitrereport/mitrereport_4_01.pdf).

     Ge, max = Maximum gain of the DBS earth station

     d = the distance between the MVDDS transmitting antenna and the DBS earth station (meters)

                      (B) Regional equivalent power flux density levels:

                            (1) −168.4 dBW/m2/4kHz in the Eastern region consisting of the District of Columbia and
                                the following states: Maine, New Hampshire, Vermont, Massachusetts, Rhode Island,
                                Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, West
                                Virginia, Kentucky, Tennessee, North Carolina, South Carolina, Georgia, Alabama,
                                Mississippi, Louisiana, and Florida;

                            (2) −169.8 dBW/m2/4kHz in the Midwestern region consisting of the following states:
                                Ohio, Michigan, Indiana, Wisconsin, Illinois, Minnesota, Iowa, Missouri, Arkansas,
                                South Dakota, Nebraska, Kansas, Oklahoma, and Texas;

                            (3) −171.0 dBW/m2/4kHz in the Southwestern region consisting of the following states:
                                Wyoming, Colorado, New Mexico, Utah, Arizona, Nevada, and California (south of 37°
                                North Latitude);

                            (4) −172.1 dBW/m2/4kHz in the Northwestern region consisting of the following states:
                                Washington, Oregon, California (north of 37° North Latitude), Idaho, Montana, North
                                Dakota, Alaska, and Hawaii.

                (iii) Except for public safety entities, harmful interference protection from MVDDS stations to
                      incumbent point-to-point 12 GHz fixed stations is not required. Incumbent point-to-point private
                      operational fixed 12 GHz stations, except for public safety entities, are required to protect
                      MVDDS stations under the process described in § 101.103(d) of this part.

           (5) 71,000–76,000 MHz; 81,000–86,000 MHz. In these bands the following interference criteria shall
               apply:

47 CFR 101.105(a)(5) (enhanced display)                                                                   page 45 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                     47 CFR 101.105(a)(5)(i)
Fixed Microwave Services

                 (i)   For receivers employing digital modulation: based upon manufacturer data and following TSB
                       10–F or other generally acceptable good engineering practice, for each potential case of
                       interference a threshold-to-interference ratio (T/I) shall be determined that would cause 1.0 dB
                       of degradation to the static threshold of the protected receiver. For the range of carrier power
                       levels (C) between the clear-air (unfaded) value and the fully-faded static threshold value, in no
                       case shall interference cause C/I to be less than the T/I so determined unless it can be shown
                       that the availability of the affected receiver would still be acceptable despite the interference.

                 (ii) For receivers employing analog modulation: manufacturer data or industry criteria will specify a
                      baseband signal-to-noise requirement (S/N) of the receiver that will result in acceptable signal
                      quality for continuous operation. Following TSB 10–F or other generally acceptable good
                      engineering practice, for each potential case of interference a C/I objective shall be calculated
                      to ensure that this S/N will not be degraded by more than 1.0 dB. For the range of carrier power
                      levels (C) between the clear-air (unfaded) value and the fully-faded threshold value, in no case
                      shall interference cause the C/I to be less than the objective so determined unless it can be
                      shown that the signal quality and availability of the affected receiver would still be acceptable
                      despite the interference.

           (6) 92,000–94,000 MHz; 94,100–95,000 MHz. In these bands prior links shall be protected to a
               threshold-to-interference ratio (T/I) level of 1.0 dB of degradation to the static threshold of the
               protected receiver. Any new link shall not decrease a previous link's desired-to-undesired (D/U) signal
               ratio below a minimum of 36 dB, unless the earlier link's licensee agrees to accept a lower D/U.

           (7) All stations operating under this part must protect the radio quiet zones as required by § 1.924 of
               this chapter. Stations authorized by competitive bidding are cautioned that they must receive the
               appropriate approvals directly from the relevant quiet zone entity prior to operating.

     (b) In addition to the requirements of paragraph (a) of this section the adjacent channel interference
         protection criteria to be afforded, regardless of system length, or type of modulation, multiplexing, or
         frequency band, must be such that the interfering signal does not produce more than 1.0 dB degradation
         of the practical threshold of the protected receiver. The “practical threshold” of the protected receiver can
         be based upon the definition in TSB 10, referenced in paragraph (c) of this section, or upon alternative
         generally acceptable good engineering standards.

     (c) Applying the criteria.

           (1) Guidelines for applying the interference protection criteria for fixed stations subject to this part are
               specified in the Telecommunications Industry Association's Telecommunications Systems Bulletin
               TSB 10, “Interference Criteria for Microwave Systems” (TSB 10). Other procedures that follow
               generally acceptable good engineering practices are also acceptable to the Commission.

           (2) If TSB 10 guidelines cannot be used, the following interference protection criteria may be used by
               calculating the ratio in dB between the desired (carrier signal) and the undesired (interfering) signal
               (C/I ratio) appearing at the input to the receiver under investigation (victim receiver). Except as
               provided in § 101.147 where the applicant's proposed facilities are of a type not included in
               paragraphs (a) and (b) of this section or where the development of the carrier-to-interference (C/I)
               ratio is not covered by generally acceptable procedures, or where the applicant does not wish to
               develop the carrier-to-interference ratio, the applicant must, in the absence of criteria or a developed
               C/I ratio, employ the following C/I protection ratios:

47 CFR 101.105(c)(2) (enhanced display)                                                                     page 46 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                    47 CFR 101.105(c)(2)(i)
Fixed Microwave Services

                 (i)   Co-Channel Interference. Both side band and carrier-beat, applicable to all bands; the existing or
                       previously authorized system must be afforded a carrier to interfering signal protection ratio of
                       at least 90 dB, except in the 952–960 MHz band where it must be 75dB, and in the
                       71,000–76,000 MHz and 81,000–86,000 MHz bands where the criteria in paragraph (a)(5) of
                       this section applies, and in the 92,000–94,000 MHz and 94,100–95,000 MHz bands, where the
                       criteria in paragraph (a)(6) of this section applies; or

                 (ii) Adjacent Channel Interference. Applicable to all bands; the existing or previously authorized
                      system must be afforded a carrier to interfering signal protection ratio of at least 56 dB, except
                      in the 71,000–76,000 MHz and 81,000–86,000 MHz bands where the criteria in paragraph (a)(5)
                      of this section applies, and in the 92,000–94,000 MHz and 94,100–95,000 MHz bands, where
                      the criteria in paragraph (a)(6) of this section applies.

           (3) Applicants for frequencies listed in § 101.147(b)(1) through (4) must make the following showings
               that protection criteria have been met over the entire service area of existing systems. Such
               showings may be made by the applicant or may be satisfied by a statement from a frequency
               coordinator.

                 (i)   For site-based multiple address stations in the 928–929/952–960 MHz and the 932–932.5/
                       941–941.5 MHz bands, a statement that the proposed system complies with the following co-
                       channel separations from all existing stations and pending applications:

                Fixed-to-fixed—145 km;

                Fixed-to-mobile—113 km;

                Mobile-to-mobile—81 km

           Note to paragraph (c)(3)(i): Multiple address systems employing only remote stations will be
           treated as mobile for the purposes of determining the appropriate separation. For mobile
           operation, the mileage is measured from the reference point specified on the license application.
           For fixed operation on subfrequencies in accordance with § 101.147 the mileage also is measured
           from the reference point specified on the license application.

                 (ii) In cases where the geographic separation standard in paragraph (c)(3)(i) of this section is not
                      followed, an engineering analysis must be submitted to show the coordination of the proposed
                      assignment with existing systems located closer than those standards. The engineering
                      analyses will include:

                       (A) Specification of the interference criteria and system parameters used in the interference
                           study;

                       (B) Nominal service areas of each system included in the interference analysis;

                       (C) Modified service areas resulting from the proposed system. The propagation models used
                           to establish the service boundary limits must be specified and any special terrain features
                           considered in computing the interference impact should be described; and

                       (D) A statement that all parties affected have agreed to the engineering analysis and will
                           accept the calculated levels of interference.
47 CFR 101.105(c)(3)(ii)(D) (enhanced display)                                                              page 47 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                  47 CFR 101.105(c)(3)(iii)
Fixed Microwave Services

                (iii) MAS EA licensees shall provide protection in accordance with § 101.1333.

           (4) Multiple address systems operating on subfrequencies in accordance with § 101.147 that propose to
               operate master stations at unspecified locations must define the operating area by a radius about a
               geographical coordinate and describe how interference to co-channel users will be controlled.

           (5) Multiple address frequencies in the 956.25–956.45 MHz bands may be assigned for use by mobile
               master stations on a primary basis. Multiple address frequencies in the 941.0–941.5 MHz bands
               that are licensed on a site-by-site basis and the 952 MHz bands may be assigned for use by primary
               mobile master stations on a case-by-case basis if the 956.25–956.45 MHz frequencies are
               unavailable. Multiple address mobile (master and remote) operation is permitted on frequencies
               licensed by geographic area subject to the interference protection criteria set forth in § 101.1333,
               i.e., adjacent channel site-based licensees and co-channel operations in adjacent EAs. Mobile
               operation in the 959.85–960 MHz band is not permitted.

           (6) Each application for new or modified nodal station on channels numbered 4A, 4B, 7, 9, and 19/20 in
               the 10.6 GHz band must demonstrate that all existing co-channel stations are at least 56 kilometers
               from the proposed nodal station site. Applicants for these channels must certify that all licensees
               and applicants for stations on the adjacent channels within 56 kilometers of the proposed nodal
               station have been notified of the proposed station and do not object. Alternatively, or if one of the
               affected adjacent channel interests does object, the applicant may show that all affected adjacent
               channel parties are provided a C/I protection ratio of 0 dB. An applicant proposing to operate at an
               AAT greater than 91 meters must reduce its EIRP in accordance with the following table; however, in
               no case may EIRP exceed 70 dBm on the 10.6 GHz channels:

                                         AAT (meters)                                       EIRP dBm
                 Above 300                                                                                         + 38
                 251 to 300                                                                                          41
                 201 to 250                                                                                          43
                 151 to 200                                                                                          49
                 101 to 150                                                                                          55
                 100 and below                                                                                       85

           (7) Each application for new or modified nodal station on channels numbered 21, 22, 23, and 24 in the
               10.6 GHz band must include an analysis of the potential for harmful interference to all other licensed
               and previously applied for co-channel and adjacent channel stations located within 80 kilometers of
               the location of the proposed station. The criteria contained in § 101.103(d)(2) must be used in this
               analysis. Applicants must certify that copies of this analysis have been served on all parties which
               might reasonably be expected to receive interference above the levels set out in § 101.103(d)(2)
               within 5 days of the date the subject application is filed with the Commission.

           (8) If the potential interference will exceed the prescribed limits, a statement shall be submitted with the
               application for new or modified stations to the effect that all parties have agreed to accept the
               higher level of interference.

     (d) Effective August 1, 1985, when a fixed station that conforms to the technical standards of this subpart (or,
         in the case of the 12,200–12,700 MHz band, for an incumbent non-MVDDS station or a direct broadcast
         satellite station) receives or will receive interference in excess of the levels specified in this section as a
         result of an existing licensee's use of non-conforming equipment authorized between July 20, 1961 and

47 CFR 101.105(d) (enhanced display)                                                                       page 48 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                           47 CFR 101.105(d)(1)
Fixed Microwave Services

           July 1, 1976, and the interference would not result if the interfering station's equipment complied with the
           current technical standards, the licensee of the non-conforming station must take whatever steps are
           necessary to correct the situation up to the point of installing equipment which fully conforms to the
           technical standards of this subpart. In such cases, if the engineering analysis demonstrates that:

           (1) The conforming station would receive interference from a non-conforming station in excess of the
               levels specified in this section; and

           (2) The interference would be eliminated if the non-conforming equipment were replaced with
               equipment which complies with the standards of this subpart, the licensee (or prospective licensee)
               of the station which would receive interference must provide written notice of the potential
               interference to both the non-conforming licensee and the Commission's office in Gettysburg, PA. The
               non-conforming licensee must make all required equipment changes within 180 days from the date
               of official Commission notice informing the licensee that it must upgrade its equipment, unless an
               alternative solution has been agreed to by all parties involved in the interference situation. If a non-
               conforming licensee fails to make all required changes within the specified period of time, the
               Commission may require the licensee to suspend operation until the changes are completed.

     (e) Interference dispute resolution procedures. Should a licensee licensed under this part receive harmful
         interference from another licensee licensed under this chapter, the parties involved shall comply with the
         dispute resolution procedures set forth herein:

           (1) The licensee experiencing the harmful interference shall notify the licensee believed to be causing
               the harmful interference and shall supply information describing its problem and supporting its
               claim;

           (2) Upon receipt of the harmful interference notice, the licensee alleged to be causing the harmful
               interference shall respond immediately and make every reasonable effort to identify and resolve the
               conflict; and

           (3) Licensees are encouraged to resolve the harmful interference prior to contacting the Commission.

[61 FR 26677, May 28, 1996, as amended at 63 FR 68983, Dec. 14, 1998; 65 FR 17449, Apr. 3, 2000; 65 FR 38329, June 20, 2000;
65 FR 59358, Oct. 5, 2000; 66 FR 35110, July 3, 2001; 67 FR 43038, June 28, 2002; 69 FR 31746, June 7, 2004; 70 FR 29996, May
25, 2005]

§ 101.107 Frequency tolerance.
     (a) The carrier frequency of each transmitter authorized in these services must be maintained within the
         following percentage of the reference frequency except as otherwise provided in paragraph (b) of this
         section or in the applicable subpart of this part (unless otherwise specified in the instrument of station
         authorization the reference frequency will be deemed to be the assigned frequency):

                        Frequency (MHz)                                Frequency tolerance (percent)
            928 to   9295                                                                                      0.0005
            932 to 932.5                                                                                      0.00015
            932.5 to 935                                                                                      0.00025
            941 to 941.5                                                                                      0.00015
            941.5 to 944                                                                                      0.00025
            952 to   9605                                                                                      0.0005

47 CFR 101.107(a) (enhanced display)                                                                            page 49 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                         47 CFR 101.107(a)
Fixed Microwave Services

                         Frequency (MHz)                            Frequency tolerance (percent)
            1,850 to 1,990                                                                                    0.002
            2,110 to 2,200                                                                                    0.001
                             1
            2,450 to 2,500                                                                                    0.001
            3,700 to 4,2001                                                                                   0.005
            5,925 to 6,8751                                                                                   0.005
                             1
            6,875 to 7,125                                                                                    0.005
                                 12
            10,550 to 11,700                                                                                  0.005
            11,700 to   12,2001                                                                               0.005
                                 4
            12,200 to 13,250                                                                                  0.005
            14,200 to 14,400                                                                                   0.03
                                 3
            17,700 to 18,820                                                                                  0.003
            18,820 to   18,9203                                                                               0.001
            928 to   9295                                                                                    0.0005
            18,920 to   19,7003                                                                               0.003
            19,700 to 27,5004 7                                                                               0.001
            29,100 to 29,250                                                                                  0.001
            31,000 to   31,3006                                                                               0.001
            31,300 to   40,0004                                                                                0.03
            71,000 to   76,0008
            81,000 to 86,0008
            92,000 to 95,0008

           1Applicable  only to common carrier LTTS stations. Tolerance for 2450–2500 MHz is 0.005%.
           Beginning Aug. 9, 1975, this tolerance will govern the marketing of LTTS equipment and the
           issuance of all such authorizations for new radio equipment. Until that date new equipment may be
           authorized with a frequency tolerance of .03% in the frequency range 2,200 to 10,500 MHz and
           .05% in the range 10,500 MHz to 12,200 MHz, and equipment so authorized may continue to be
           used for its life provided that it does not cause interference to the operation of any other licensee.
           Beginning March 1, 2005, new LTTS operators will not be licensed and existing LTTS licensees will
           not be renewed in the 11.7–12.2 GHz band.

           2See subpart G of this part for the stability requirements for transmitters used in the Digital
           Electronic Message Service.

           3
            Existing type accepted equipment with a frequency tolerance of ±0.03% may be marketed until
           December 1, 1988. Equipment installed and operated prior to December 1, 1988 may continue to
           operate after that date with a minimum frequency tolerance of ±0.03%. However, the replacement
           of equipment requires that the current tolerance be met.

           4   Applicable to private operational fixed point-to-point microwave and stations providing MVDDS.

47 CFR 101.107(a) (enhanced display)                                                                         page 50 of 196
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                                                                                                               47 CFR 101.107(b)
Fixed Microwave Services

           5For private operational fixed point-to-point microwave systems, with a channel greater than or
           equal to 50 KHz bandwidth, ±0.0005%; for multiple address master stations, regardless of
           bandwidth, ±0.00015%; for multiple address remote stations with 12.5 KHz bandwidths,
           ±0.00015%; for multiple address remote stations with channels greater than 12.5 KHz bandwidth,
           ±0.0005%.

           6
               For stations authorized prior to March 11, 1997, transmitter tolerance shall not exceed 0.03%.

           7 The frequency tolerance for stations authorized on or before April 1, 2005 is 0.03%. Existing
           licensees and pending applicants on that date may continue to operate after that date with a
           frequency tolerance of 0.03%, provided that it does not cause harmful interference to the operation
           of any other licensee. For analog systems, if the channel bandwidth is greater than 30 MHz up to
           50 MHz, the frequency tolerance standard will be 0.03%; if the channel bandwidth is 30 MHz or
           less, then the frequency tolerance standard will be 0.003%. This analog standard is conditional
           provided that harmful interference is not caused to digital stations operating within the 0.001%
           tolerance standards. If harmful interference is caused to stations operating with the more stringent
           standard, the onus shall be on the operators with the less stringent parameters to develop an
           engineering solution to the problem. For exceptions, see § 101.147 and § 101.507.

           8 Equipment authorized to be operated in the 71,000–76,000 MHz, 81,000–86,000 MHz,
           92,000–94,000 MHz and 94,100–95,000 MHz bands is exempt from the frequency tolerance
           requirement noted in the table of paragraph (a) of this section.

     (b) Heterodyne microwave radio systems may be authorized at a somewhat less restrictive frequency
         tolerance (up to .01 percent) to compensate for frequency shift caused by numerous repeaters between
         base band signal insertion. Where such relaxation is sought, applicant must provide all calculations and
         indicate the desired tolerance over each path. In such instances the radio transmitters and receivers used
         must individually be capable of complying with the tolerance specified in paragraph (a) of this section.
         Heterodyne operation is restricted to channel bandwidth of 10 MHz or greater.

     (c) As an additional requirement in any band where the Commission makes assignments according to a
         specified channel plan, provisions must be made to prevent the emission included within the occupied
         bandwidth from radiating outside the assigned channel at a level greater than that specified in § 101.111.

[61 FR 26677, May 28, 1996, as amended at 62 FR 23167, Apr. 29, 1997; 63 FR 6105, Feb. 6, 1998; 63 FR 9448, Feb. 25, 1998; 63
FR 14039, Mar. 24, 1998; 63 FR 36611, July 7, 1998; 66 FR 35110, July 3, 2001; 67 FR 43038, June 26, 2002; 68 FR 4956, Jan. 31,
2003; 69 FR 3266, Jan. 23, 2004; 69 FR 16832, Mar. 31, 2004; 70 FR 4787, Jan. 31, 2005; 76 FR 59572, Sept. 27, 2011; 81 FR
79945, Nov. 14, 2016]

§ 101.109 Bandwidth.
     (a) Each authorization issued pursuant to these rules will show, as the emission designator, a symbol
         representing the class of emission which must be prefixed by a number specifying the necessary
         bandwidth. This figure does not necessarily indicate the bandwidth actually occupied by the emission at
         any instant. In those cases where part 2 of this chapter does not provide a formula for the computation of
         the necessary bandwidth, the occupied bandwidth may be used in the emission designator.

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                                                                                                   47 CFR 101.109(b)
Fixed Microwave Services

     (b) Stations in this service will be authorized any type of emission, method of modulation, and transmission
         characteristic, consistent with efficient use of the spectrum and good engineering practice, except that
         Type B, damped-wave emission will not be authorized.

     (c) The maximum bandwidth which will be authorized per frequency assigned is set out in the table that
         follows. Regardless of the maximum authorized bandwidth specified for each frequency band, the
         Commission reserves the right to issue a license for less than the maximum bandwidth if it appears that a
         lesser bandwidth would be sufficient to support an applicant's intended communications.

              Frequency band (MHz)                             Maximum authorized bandwidth
                                                        156
 928 to 929                                    25 kHz
 932 to 932.5, 941 to 941.5                    12.5 kHz1 5 6
 932.5 to 935, 941.5 to 944                    200 kHz1
 952 to 960                                    200 KHz1 5 6
 1,850 to 1,990                                10 MHz1
 2,110 to 2,130                                3.5 MHz
 2,130 to 2,150                                800 or 1600 KHz1
 2,150 to 2,160                                10 MHz
 2,160 to 2,180                                3.5 MHz
 2,180 to 2,200                                800 or 1600 KHz1
 2,450 to 2,483.5                              625 KHz2
 2,483.5 to 2,500                              800 KHz
 3,700 to 4,200                                20 MHz
                                               1
 5,925 to 6,425                                    60
 6,425 to 6,525                                25 MHz
 6,525 to 6,875                                30 MHz.1
 6,875 to 7,125                                25 MHz1
 10,550 to 10,680                              5 MHz1
                                               1
 10,700 to 11,700                                  80
 12,200 to   12,7008                           500 megahertz
 12,700 to 13,150                              50 MHz
 13,200 to 13,250                              25 MHz
 17,700 to 18,140                              220 MHz1
 18,140 to 18,142                              2 MHz
 18,142 to 18,580                              6 MHz
 18,580 to 18,820                              20 MHz1
 18,820 to 18,920                              10 MHz
 18,920 to 19,160                              20 MHz1
 19,160 to 19,260                              10 MHz
 19,260 to 19,700                              220 MHz1
 21,200 to 23,600                              50 MHz1 4
 24,250 to 25,250                              40 MHz7
 29,100 to 29,250                              150 MHz

47 CFR 101.109(c) (enhanced display)                                                                  page 52 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                                 47 CFR 101.111
Fixed Microwave Services

              Frequency band (MHz)                            Maximum authorized bandwidth
 31,000 to 31,075                                 75 MHz
 31,075 to 31,225                                 150 MHz
 31,225 to 31,300                                 75 MHz
 71,000 to 76,000                                 5000 MHz
 81,000 to 86,000                                 5000 MHz
 92,000 to 95,000                                 ( 3)

1 The maximum bandwidth that will be authorized for each particular frequency in this band is
detailed in the appropriate frequency table in § 101.147. If contiguous channels are aggregated in
the 928–928.85/952–952.85/956.25–956.45 MHz, the 928.85–929/959.85–960 MHz, or the
932–932.5/941–941.5 MHz bands, then the bandwidth may exceed that which is listed in the table.

2
    1250 KHz, 1875 KHz, or 2500 KHz on a case-by-case basis.

3To be specified in authorization. For the band 92 to 95 GHz, maximum bandwidth is licensed in
one segment of 2 GHz from 92–94 GHz and one 0.9 GHz segment from 94.1 to 95 GHz, or the total
of the loaded band if smaller than the assigned bandwidth.

4   For exceptions, see § 101.147(s).

5   A 12.5 kHz bandwidth applies only to frequencies listed in § 101.147(b)(1) through (4).

6For frequencies listed in § 101.147(b)(1) through (4), consideration will be given on a case-by-
case basis to authorizing bandwidths up to 50 kHz.

7For channel block assignments in the 24,250–25,250 MHz band, the authorized bandwidth is
equivalent to an unpaired channel block assignment or to either half of a symmetrical paired
channel block assignment. When adjacent channels are aggregated, equipment is permitted to
operate over the full channel block aggregation without restriction.

NOTE TO FOOTNOTE 7: Unwanted emissions shall be suppressed at the aggregate channel block
edges based on the same roll-off rate as is specified for a single channel block in § 101.111(a)(1)
or in § 101.111(a)(2)(ii) and (iii) as appropriate.

8For incumbent private operational fixed point-to-point stations in this band (those not licensed as
MVDDS), the maximum bandwidth shall be 20 MHz.

[61 FR 26677, May 28, 1996, as amended at 61 FR 44181, Aug. 28, 1996; 62 FR 23167, Apr. 29, 1997; 62 FR 24582, May 6, 1997;
63 FR 6105, Feb. 6, 1998; 65 FR 17449, Apr. 3, 2000; 65 FR 38329, June 20, 2000; 65 FR 59358, Oct. 5, 2000; 67 FR 43038, June
26, 2002; 68 FR 4956, Jan. 31, 2003; 69 FR 3266, Jan. 23, 2004; 70 FR 29997, May 25, 2005; 75 FR 41771, July 19, 2010; 76 FR
59572, Sept. 27, 2011; 77 FR 54432, Sept. 5, 2012; 81 FR 79945, Nov. 14, 2016]

§ 101.111 Emission limitations.
       (a) The mean power of emissions must be attenuated below the mean output power of the transmitter in
           accordance with the following schedule:
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                                                                                                      47 CFR 101.111(a)(1)
Fixed Microwave Services

           (1) When using transmissions other than those employing digital modulation techniques:

                 (i)   On any frequency removed from the assigned frequency by more than 50 percent up to and
                       including 100 percent of the authorized bandwidth: At least 25 decibels;

                 (ii) On any frequency removed from the assigned frequency by more than 100 percent up to and
                      including 250 percent of the authorized bandwidth: At least 35 decibels;

                 (iii) On any frequency removed from the assigned frequency by more than 250 percent of the
                       authorized bandwidth: At least 43 + 10 Log10 (mean output power in watts) decibels, or 80
                       decibels, whichever is the lesser attenuation.

           (2) When using transmissions employing digital modulation techniques (see § 101.141(b)) in situations
               not covered in this section:

                 (i)   For operating frequencies below 15 GHz, in any 4 KHz band, the center frequency of which is
                       removed from the assigned frequency by more than 50 percent up to and including 250 percent
                       of the authorized bandwidth: As specified by the following equation but in no event less than 50
                       decibels:

                       A = 35 + 0.8(P −50) + 10 Log10 B. (Attenuation greater than 80 decibels or to an absolute
                       power of less than −13 dBm/1MHz is not required.) where:
                 A = Attenuation (in decibels) below the mean output power level.

                 P = Percent removed from the center frequency of the transmitter bandwidth.

                 B = Authorized bandwidth in MHz.

           Note: MVDDS operations in the 12.2–12.7 GHz band shall use 24 megahertz for the value of B in
           the emission mask equation set forth in this section. The emission mask limitation shall only
           apply at the 12.2–12.7 GHz band edges and does not restrict MVDDS channelization bandwidth
           within the band.

                 (ii) For operating frequencies above 15 GHz, in any 1 MHz band, the center frequency of which is
                      removed from the assigned frequency by more than 50 percent up to and including 250 percent
                      of the authorized bandwidth: As specified by the following equation but in no event less than 11
                      decibels:

                       A = 11 + 0.4(P−50) + 10 Log10 B. (Attenuation greater than 56 decibels or to an absolute power
                       of less than −13 dBm/1MHz is not required.)
                 (iii) In any 1 MHz band, the center frequency of which is removed from the assigned frequency by
                       more than 250 percent of the authorized bandwidth: At least 43 + 10 Log10 (the mean output
                       power in watts) decibels, or 80 decibels, whichever is the lesser attenuation. The authorized
                       bandwidth includes the nominal radio frequency bandwidth of an individual transmitter/
                       modulator in block-assigned bands. Equipment licensed prior to April 1, 2005 shall only be
                       required to meet this standard in any 4 kHz band.

47 CFR 101.111(a)(2)(iii) (enhanced display)                                                              page 54 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                    47 CFR 101.111(a)(2)(iv)
Fixed Microwave Services

                 (iv) The emission mask for LMDS and the 24 GHz Service shall use the equation in paragraph
                      (a)(2)(ii) of this section and apply it only to the band edge of each block of spectrum, but not to
                      subchannels established by licensees. The value of P in the equation is the percentage
                      removed from the carrier frequency and assumes that the carrier frequency is the center of the
                      actual bandwidth used. The emission mask can be satisfied by locating a carrier of the
                      subchannel sufficiently far from the channel edges so that the emission levels of the mask are
                      satisfied. The LMDS or 24 GHz emission mask shall use a value B (bandwidth) of 40 MHz, for
                      all cases even in the case where a narrower subchannel is used (for instance the actual
                      bandwidth is 10 MHz) and the mean output power used in the calculation is the sum of the
                      output power of a fully populated channel. For block assigned channels, the out-of-band
                      emission limits apply only outside the assigned band of operation and not within the band.

                 (v) The emission mask for the 71–76 GHz, 81–86 GHz, 92–94 GHz, and 94.1–95 GHz bands used
                     in the equation in paragraph (a)(2)(ii) of this section applies only to the edge of each channel,
                     but not to sub-channels established by licensees. The value of P in the equation is for the
                     percentage removed from the carrier frequency and assumes that the carrier frequency is the
                     center of the actual bandwidth used. The value of B will always be 500 MHz. In the case where
                     a narrower sub-channel is used within the assigned bandwidth, such sub-carrier will be located
                     sufficiently far from the channel edges to satisfy the emission levels of the mask. The mean
                     output power used in the calculation is the sum of the output power of a fully populated
                     channel.

           (3) For Digital Termination System channels used in the Digital Electronic Message Service (DEMS)
               operating in the 10,550–10,680 MHz band:

                 (i)   In any 4 KHz band, the center frequency of which is removed from the edge of the DEMS
                       channel by up to and including 1.125 times the DEMS subchannel bandwidth: As specified by
                       the following equation may in no event be less than 50 + 10 log10 N decibels:

                       A = 50 + 0.0333(F − 0.5B) + 10 log10 N decibels
                Where:

                A = Attenuation (in decibels) below means output power level contained within the DEMS channel for
                a given polarization.

                B = Bandwidth of DEMS channel (in KHz).

                F = Absolute value of the difference between the center frequency of the 4 KHz band measured and
                the center frequency of the DEMS channel (in KHz).

                N = Number of active subchannels of the given polarization within the DEMS channel.

                 (ii) In any 4 KHz band within the authorized DEMS band the center frequency of which is removed
                      from the center frequency of the DEMS channel by more than the sum of 50% of the DEMS
                      channel bandwidth plus 1.125 times the subchannel bandwidth: As specified by the following
                      equation but in no event less than 80 decibels:

                       A = 80 + 10 log10 N decibels

47 CFR 101.111(a)(3)(ii) (enhanced display)                                                                 page 55 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                  47 CFR 101.111(a)(3)(iii)
Fixed Microwave Services

                 (iii) In any 4 KHz band the center frequency of which is outside the authorized DEMS band: At least
                       43 + 10 log10 (mean output power in watts) decibels.

           (4) For DEMS channels in the 17,700–19,700 MHz band:

                 (i)   In any 4 KHz band, the center frequency of which is removed from the frequency of the center
                       of the DEMS channel by more than 50 percent of the DEMS channel bandwidth up to and
                       including 50 percent plus 500 KHz: As specified by the following equation but in no event be
                       less than 50 + 10 log10 N decibels:

                       A = 50 + 0.06(F −0.5B) + 10 log10 N decibels
                 Where:

                 A = Attenuation (in decibels) below means output power level contained within the DEMS channel for
                 a given polarization.

                 B = Bandwidth of DEMS channel (in KHz).

                 F = Absolute value of the difference between the center frequency of the 4 KHz band measured and
                 the center frequency of the DEMS channel (in KHz).

                 N = Number of active subchannels of the given polarization within the DEMS channel.

                 (ii) In any 4 KHz band within the authorized DEMS band, the center frequency of which is removed
                      from the center frequency of the DEMS channel by more than the sum of 50 percent of the
                      channel bandwidth plus 500 KHz: As specified by the following equation but in no event less
                      than 80 decibels:

                       A = 80 + 10 log10 N decibels
                 (iii) In any 4 KHz band the center frequency of which is outside the authorized Digital Message
                       Service band: At least 43 + 10 log10 (mean output power in watts) decibels.

           (5) When using transmissions employing digital modulation techniques on the 900 MHz multiple
               address frequencies with a 12.5 KHz bandwidth, the power of any emission must be attenuated
               below the unmodulated carrier power of the transmitter (P) in accordance with the following
               schedule:

                 (i)   On any frequency removed from the center of the authorized bandwidth by a displacement
                       frequency (fd in KHz) of more than 2.5 KHz up to and including 6.25 KHz: At least 53 log10 (fd/
                       2.5) decibels;

                 (ii) On any frequency removed from the center of the authorized bandwidth by a displacement
                      frequency (fd in KHz) of more than 6.25 KHz up to and including 9.5 KHz: At least 103 log10 (fd/
                      3.9) decibels;

                 (iii) On any frequency removed from the center of the authorized bandwidth by a displacement
                       frequency (fd in KHz) of more than 9.5 KHz up to and including 15 KHz: At least 157 log10 (fd/
                       5.3) decibels; and

47 CFR 101.111(a)(5)(iii) (enhanced display)                                                               page 56 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                       47 CFR 101.111(a)(5)(iv)
Fixed Microwave Services

                (iv) On any frequency removed from the center of the authorized bandwidth by a displacement
                     frequency greater than 15 KHz: At least 50 plus 10 log10(P) or 70 decibels, whichever is the
                     lesser attenuation.

           (6) When using transmissions employing digital modulation techniques on the 900 MHz multiple
               address frequencies with a bandwidth greater than 12.5 KHz, the power of any emission must be
               attenuated below the unmodulated carrier power of the transmitter (P) in accordance with the
               following schedule:

                 (i)   On any frequency removed from the center of the authorized bandwidth by a displacement
                       frequency (fd in KHz) of more than 5 KHz up to and including 10 KHz: At least 83 log10 (fd/5)
                       decibels;

                 (ii) On any frequency removed from the center of the authorized bandwidth by a displacement
                      frequency (fd in KHz) of more than 10 KHz up to and including 250 percent of the authorized
                      bandwidth: At least 116 log10 (fd/6.1) decibels or 50 plus 10 log10 (P) or 70 decibels, whichever
                      is the lesser attenuation; and

                (iii) On any frequency removed from the center of the authorized bandwidth by more that 250
                      percent of the authorized bandwidth: At least 43 plus 10 log10 (output power in watts) decibels
                      or 80 decibels, whichever is the lesser attenuation.

     (b) When an emission outside of the authorized bandwidth causes harmful interference, the Commission
         may, at its discretion, require greater attenuation than specified in paragraph (a) of this section.

     (c) The emission of an unmodulated carrier is prohibited except for test purposes as required for proper
         station and system maintenance.

     (d) Interference to passive sensors. These limitations are necessary to minimize the probability of harmful
         interference to reception in the 10.6–10.68 GHz and 31–31.3 GHz bands onboard space stations in the
         Earth exploration-satellite service (passive).

           (1) 10.6–10.68 GHz.

                 (i)   Fixed stations are restricted to point-to-point operations, with each station supplying not more
                       than −3 dBW of transmitter power to the antenna, producing not more than 40 dBW of EIRP, and
                       radiating at an antenna main beam elevation angle of 20° or less. Licensees holding a valid
                       authorization on August 6, 2015 to operate in this band may continue to operate as authorized,
                       subject to proper license renewal. Licensees are urged to:

                       (A) Limit the maximum transmitter power supplied to the antenna to −15 dBW; and

                       (B) Employ automatic transmitter power control (ATPC).

                 (ii) The maximum transmitter power supplied to the antenna of stations using ATPC may be
                      increased by a value corresponding to the ATPC range, up to a maximum of −3 dBW.

           (2) 31–31.3 GHz. For fixed stations authorized after August 6, 2018, the unwanted emissions power in
               any 100 MHz of the 31.3–31.5 GHz band shall be limited to −38 dBW (−38 dBW/100 MHz), as
               measured at the input to the antenna.

[61 FR 26677, May 28, 1996, as amended at 62 FR 24582, May 6, 1997; 65 FR 59358, Oct. 5, 2000; 67 FR 43038, June 26, 2002; 68
FR 4957, Jan. 31, 2003; 69 FR 3266, Jan. 23, 2004; 69 FR 31746, June 7, 2004; 80 FR 38912, July 7, 2015]

47 CFR 101.111(d)(2) (enhanced display)                                                                        page 57 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                             47 CFR 101.113
Fixed Microwave Services

§ 101.113 Transmitter power limitations.
     (a) On any authorized frequency, the average power delivered to an antenna in this service must be the
         minimum amount of power necessary to carry out the communications desired. Application of this
         principle includes, but is not to be limited to, requiring a licensee who replaces one or more of its
         antennas with larger antennas to reduce its antenna input power by an amount appropriate to
         compensate for the increased primary lobe gain of the replacement antenna(s). In no event shall the
         average equivalent isotropically radiated power (EIRP), as referenced to an isotropic radiator, exceed the
         values specified below. In cases of harmful interference, the Commission may, after notice and
         opportunity for hearing, order a change in the effective radiated power of this station. Further, the output
         power of a transmitter on any authorized frequency in this service may not exceed the following:

                                                                         Maximum allowable EIRP1 2
                         Frequency band (MHz)
                                                                  Fixed1 2 (dBW)              Mobile (dBW)
            928.0–929.0(2)                             + 17
            932.0–932.5(2)                             + 17
            932.5–935.0                                + 40
            941.0–941.5(2)                             + 30                            + 14
            941.5–944.0                                + 40
            952.0–960.0(2)                             + 40                            + 14
            1,850–1,990                                + 45
            2,110–2,150                                + 45
            2,150–2,1803                               + 45
            2,180–2,200                                + 45
            2,450–2,500                                + 45
            2,500–2,686
            2,686–2,690                                + 45
            3,700–4,200                                + 55
            5,925–6,425                                + 55
            6,425–6,525                                                                + 35
            6,525–6,875                                + 55
            6,875–7,125                                + 55
            10,550 to   10,6005                        + 55
            10,600 to 10,6805                          + 40
            10,700–11,700                              + 55
            12,200–12,70011                            + 50
            12,700–13,2004                             + 50
            13,200–13,2504                             + 55
            14,200–14,40012                            + 45
            17,700–18,600                              + 55
            18,600–18,8006                             + 35
                                                       5
            18,800–19,700                                  + 55
            21,200–23,60010                            + 55

47 CFR 101.113(a) (enhanced display)                                                                         page 58 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                        47 CFR 101.113(a)
Fixed Microwave Services

                                                                         Maximum allowable EIRP1 2
                        Frequency band (MHz)
                                                                  Fixed1 2 (dBW)              Mobile (dBW)
                                                       5
            24,250–25,250                                  + 55
                                                        7
            29,100–29,250                              ( )
            31,000 to 31,0758 9                        30 dBW/MHz                      30 dBW/MHz
            31,075 to 31,2258 9                        30 dBW/MHz                      30 dBW/MHz
                               89
            31,225 to 31,300                           30 dBW/MHz                      30 dBW/MHz
                            13
            71,000–76,000                              + 55                            + 55
            81,000–86,00013                            + 55                            + 55
            92,000–95,000                              + 55                            + 55

           1   Per polarization.

           2For multiple address operations, see § 101.147. Remote alarm units that are part of a multiple
           address central station projection system are authorized a maximum of 2 watts.

           3When an omnidirectional antenna is authorized in the 2150–2160 MHz band, the maximum
           power shall be 60 dBm.

           4   Also see § 101.145.

           5 The output power of a DEMS System nodal transmitter shall not exceed 0.5 watt per 250 kHz. The
           output power of a DEMS System user transmitter shall not exceed 0.04 watt per 250 kHz. The
           transmitter power in terms of the watts specified is the peak envelope power of the emission
           measured at the associated antenna input port. The operating power shall not exceed the
           authorized power by more than 10 percent of the authorized power in watts at any time.
           Frequencies from 10,600–10,680 MHz are subject to footnote US265 in the Table of Frequency
           Allocations in § 2.106 of the Commission's Rules. Stations authorized prior to April 1, 2003 to
           exceed the 40 dBW limit may continue to operate at their authorized output power level indefinitely,
           provided that neither end point of the relevant link is relocated.

           6   Maximum power delivered to the antenna shall not exceed −3 dBw.

           7   See § 101.113(c).

           8For stations authorized prior to March 11, 1997, and for non-Local Multipoint Distribution Service
           stations authorized pursuant to applications refiled no later than June 26, 1998, the transmitter
           output power shall not exceed 0.050 watt.

           9For subscriber transceivers authorized in these bands, the EIRP shall not exceed 55 dBw or 42
           dBw/MHz.

           10   See § 101.147(s).

47 CFR 101.113(a) (enhanced display)                                                                         page 59 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                     47 CFR 101.113(b)
Fixed Microwave Services

           11 The EIRP for MVDDS stations is limited to 14.0 dBm per 24 MHz (−16.0 dBW per 24 MHz).
           Incumbent point-to-point stations may use up to + 50 dBW except for low power systems which
           were licensed under § 101.147(q).

           12Beginning March 1, 2005, no new LTTS operators will be licensed and no existing LTTS licensees
           will be renewed in the 14.2–14.4 GHz band.

           13
             The maximum transmitter power is limited to 3 watts (5 dBW) unless a proportional reduction in
           maximum authorized EIRP is required under § 101.115. The maximum transmitter power spectral
           density is limited to 150 mW per 100 MHz.

     (b) The power of transmitters that use Automatic Transmitter Power Control shall not exceed the power input
         or output specified in the instrument of station authorization. The power of non-ATPC transmitters shall
         be maintained as near as practicable to the power input or output specified in the instrument of station
         authorization.

     (c)

           (1) Transmitter power limitations. Point-to-point stations in the 29.1–29.25 GHz band for the LMDS
               backbone between LMDS hubs shall be limited to a maximum allowable e.i.r.p. density per carrier of
               23 dBW/MHz in any one megahertz in clear air, and may exceed this limit by employment of adaptive
               power control in cases where link propagation attenuation exceeds the clear air value due to
               precipitation and only to the extent that the link is impaired.

           (2) Hub transmitter EIRP spectral area, density limit. LMDS applicants shall demonstrate that, under
               clear air operating conditions, the maximum aggregate of LMDS transmitting hub stations in a Basic
               Trading Area in the 29.1–29.25 GHz band will not transmit a co-frequency hub-to-subscriber e.i.r.p.
               spectral area density in any azimuthal direction in excess of X dBW/(MHz-km2) when averaged over
               any 4.375 MHz band, where X is defined in Table 1. Individual hub stations may exceed their clear air
               e.i.r.p.s by employment of adaptive power control in cases where link propagation attenuation
               exceeds the clear air value and only to the extent that the link is impaired.

                 (i)   The e.i.r.p. aggregate spectral area density is calculated as follows:

     where:

     N = number of co-frequency hubs in BTA.

     A = Area of BTA in km2.

     pi = spectral power density into antenna of i-th hub (in W/MHz).

     gi = gain of i-th hub antenna at zero degree elevation angle.

     Each pi and gi are in the same 1 MHz within the designated frequency band.

47 CFR 101.113(c)(2)(i) (enhanced display)                                                             page 60 of 196
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                                                                                                        47 CFR 101.113(c)(2)(ii)
Fixed Microwave Services

                 (ii) The climate zones in Table 1 are defined for different geographic locations within the US as
                      shown in Appendix 28 of the ITU Radio Regulations.

                                                                     Table 11

                             Climate zone                   e.i.r.p. Spectral Density (Clear Air) (dBW/MHz-km2)2
                                   1                                                −23
                                   2                                                −25
                                 3,4,5                                              −26

                       1
                        LMDS system licensees in two or more BTAs may individually or collectively deviate from the
                       spectral area density computed above by averaging the power over any 200 km by 400 km area,
                       provided that the aggregate interference to the satellite receiver is no greater than if the
                       spectral area density were as specified in Table 1. A showing to the Commission comparing
                       both methods of computation is required and copies shall be served on any affected non-GSO
                       20/30 GHz MSS providers.

                       2
                           See § 21.1007(c)(i) for the population density of the BTA.

           (3) Hub transmitter e.i.r.p. spectral area density limit at elevation angles above the horizon. LMDS
               applicants shall demonstrate that, under clear air operating conditions, the maximum aggregate of
               LMDS transmitting hub stations in a Basic Trading Area in the 29.1–29.25 GHz band will not transmit
               a co-frequency hub-to-subscriber e.i.r.p. spectral area density in any azimuthal direction in excess of
               X dBW/(MHz-km2) when averaged over any 4.375 MHz band where X is defined in Table 2. Individual
               hub stations may exceed their clear air e.i.r.p.s by employment of adaptive power control in cases
               where link propagation attenuation exceeds the clear air value and only to the extent that the link is
               impaired.

                 (i)   The e.i.r.p. aggregate spectral area density is calculated as follows:

     where:

     N = number of co-frequency hubs in BTA.

     A = Area of BTA in km2.

     e.i.r.p. (ai) = equivalent isotropic radiated spectral power density of the i-th hub (in W/MHz) at elevation angle a
     where a is the angle in degrees of elevation above horizon. e.i.r.p.(0°) is the hub e.i.r.p. area density at the
     horizon used in Section 101.113c(2). The nominal antenna pattern will be used for elevation angles between 0°
     and 8°, and average levels will be used for angles beyond 8°, where average levels will be calculated by
     sampling the antenna patterns in each 1° interval between 8° and 9015, dividing by 83.

47 CFR 101.113(c)(3)(i) (enhanced display)                                                                         page 61 of 196
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Fixed Microwave Services

                                                        Table 2

   Elevation angle (a)                               Relative e.i.r.p. density (dBW/MHz-km2)
 0° ≤a ≤4.0°                e.i.r.p.(a) = e.i.r.p.(0°) + 20 log (sinΠ x)(1/Π x) where x = (a + 1)/7.5°.
 4.0° <a ≤7.7°              e.i.r.p.(a) = e.i.r.p.(0°) - 3.85a + 7.7.
 a >7.7°                    e.i.r.p.(a) = e.i.r.p.(0°) - 22.

                 (ii) LMDS system licensees in two or more BTAs may individually or collectively deviate from the
                      spectral area density computed above by averaging the power over any 200 km by 400 km area,
                      provided that the aggregate interference to the satellite receiver is no greater than if the
                      spectral area density were as specified in Table 1. A showing to the Commission comparing
                      both methods of computation is required and copies shall be served on any affected non-GSO
                      MSS providers.

           (4) Power reduction techniques. LMDS hub transmitters shall employ methods to reduce average power
               levels received by non-geostationary mobile satellite receivers, to the extent necessary to comply
               with paragraphs (c)(1) and (c)(2) of this section, by employing the methods set forth below:

                 (i)     Alternate polarizations. LMDS hub transmitters in the LMDS service area may employ both
                         vertical and horizontal linear polarizations such that 50 percent (plus or minus 10 percent) of
                         the hub transmitters shall employ vertical polarization and 50 percent (plus or minus 10
                         percent) shall employ horizontal polarization.

                 (ii) Frequency interleaving. LMDS hub transmitters in the LMDS service area may employ frequency
                      interleaving such that 50 percent (plus or minus 10 percent) of the hub transmitters shall
                      employ channel center frequencies which are different by one-half the channel bandwidth of the
                      other 50 percent (plus or minus 10 percent) of the hub transmitters.

                 (iii) Alternative methods. As alternatives to paragraphs (c)(4)(i) and (c)(4)(ii) of this section, LMDS
                       operators may employ such other methods as may be shown to achieve equivalent reductions
                       in average power density received by non-GSO MSS satellite receivers.

[61 FR 26677, May 28, 1996]

Editorial Note: For FEDERAL REGISTER citations affecting § 101.113, see the List of CFR Sections Affected, which
appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

§ 101.115 Directional antennas.
     (a) Unless otherwise authorized upon specific request by the applicant, each station authorized under the
         rules of this part must employ a directional antenna adjusted with the center of the major lobe of radiation
         in the horizontal plane directed toward the receiving station with which it communicates: provided,
         however, where a station communicates with more than one point, a multi- or omni-directional antenna
         may be authorized if necessary. New Periscope antenna systems will not, under ordinary circumstances,
         be authorized.

     (b) Fixed stations (other than temporary fixed stations and DEMS nodal stations) operating at 932.5 MHz or
         higher must employ transmitting and receiving antennas (excluding second receiving antennas for
         operations such as space diversity) meeting the appropriate performance Standard A indicated below,

47 CFR 101.115(b) (enhanced display)                                                                              page 62 of 196
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                                                                                                 47 CFR 101.115(b)(1)
Fixed Microwave Services

           except that in areas not subject to frequency congestion, antennas meeting performance Standard B may
           be used, subject to the requirements set forth in paragraph (d) of this section. For frequencies with a
           Standard B1 and a Standard B2, in order to comply with Standard B an antenna must fully meet either
           Standard B1 or Standard B2. Licensees shall comply with the antenna standards table shown in this
           paragraph in the following manner:

           (1) With either the maximum beamwidth to 3 dB points requirement or with the minimum antenna gain
               requirement; and

           (2) With the minimum radiation suppression to angle requirement.

47 CFR 101.115(b)(2) (enhanced display)                                                               page 63 of 196
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                                                                                                                                                         47 CFR 101.115(b)(2)
Fixed Microwave Services

                                                                       Antenna Standards

                                                                                                         Minimum radiation suppression to angle in degrees from centerline of
                                    Maximum beamwidth to 3 dB points1 (included     Minimum antenna                           main beam in decibels
   Frequency (MHz)      Category
                                               angle in degrees)                        gain (dbi)        5°    10° to    15° to    20° to     30° to     100° to     140° to
                                                                                                        to10°    15°       20°       30°       100°        140°        180°
932.5 to 935            A                                                    14.0                n/a      n/a         6        11        14         17          20          24
                        B                                                    20.0                n/a      n/a       n/a         6        10         13          15          20
941.5 to 944            A                                                    14.0                n/a      n/a         6        11        14         17          20          24
                        B                                                    20.0                n/a      n/a       n/a         6        10         13          15          20
952 to 9602 3           A                                                    14.0                n/a      n/a         6        11        14         17          20          24
                        B                                                    20.0                n/a      n/a       n/a         6        10         13          15          20
1,850 to   2,5004       A                                                     5.0                n/a       12       18         22        25         29          33          39
                        B                                                     8.0                n/a        5       18         20        20         25          28          36
3,700 to 4,200          A                                                     2.7                 36       23       29         33        36         42          55          55
                        B                                                     2.7                 36       20       24         28        32         32          32          32
                        B                                                     2.2                 38       21       25         29        32         35          39          45
5,925 to   6,4255       A                                                     2.2                 38       25       29         33        36         42          55          55
                        B1                                                    2.2                 38       21       25         29        32         35          39          45
                        B2                                                    4.1                 32       15       20         23        28         29          60          60
6,525 to   6,8755       A                                                     2.2                 38       25       29         33        36         42          55          55
                        B1                                                    2.2                 38       21       25         29        32         35          39          45
                        B2                                                    4.1                 32       15       20         23        28         29          60          60
6,875 to 7,125          A                                                     2.2                 38       25       29         33        36         42          55          55
                        B1                                                    2.2                 38       21       25         29        32         35          39          45
                        B2                                                    4.1                 32       15       20         23        28         29          60          60
10,550 to 10,6807       A                                                     3.5                33.5      18       24         28        32         35          55          55
                        B                                                     3.5                33.5      17       24         28        32         35          40          45
10,565 to 10,615        n/a                                                  360                 n/a      n/a       n/a       n/a       n/a        n/a         n/a          n/a
10,630 to 10,6808       n/a                                                   3.5                 34       20       24         28        32         35          36          36
10,700–11,7005          A                                                     2.2                 38       25       29         33        36         42          55          55
                        B                                                     3.5                33.5      17       24         28        32         35          40          45
12,200 to   13,2509     A                                                     1.0                n/a       23       28         35        39         41          42          50
                        B                                                     2.0                n/a       20       25         28        30         32          37          47
17,700 to 18,820        A                                                     2.2                 38       25       29         33        36         42          55          55

47 CFR 101.115(b)(2) (enhanced display)                                                                                                                        page 64 of 196
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                                                                                                                                                           47 CFR 101.115(b)(2)
Fixed Microwave Services

                                                                                                           Minimum radiation suppression to angle in degrees from centerline of
                                      Maximum beamwidth to 3 dB points1 (included     Minimum antenna                           main beam in decibels
      Frequency (MHz)      Category
                                                 angle in degrees)                        gain (dbi)        5°    10° to    15° to    20° to     30° to     100° to     140° to
                                                                                                          to10°    15°       20°       30°       100°        140°        180°
                           B1                                                   2.2                 38       20       24         28        32         35          36          36
                           B2                                                   3.3                33.5      18       22         29        31         35          55          55
18,920 to 19,70010         A                                                    2.2                 38       25       29         33        36         42          55          55
                           B1                                                   2.2                 38       20       24         28        32         35          36          36
                           B2                                                   3.3                33.5      18       22         29        31         35          55          55
21,200 to   23,6007 11     A                                                    3.3                33.5      18       26         26        33         33          55          55
                           B1                                                   3.3                33.5      17       24         24        29         29          40          50
                           B2                                                   4.5                30.5      14       19         22        24         29          52          52
24,250 to   25,25010       A                                                    2.8                 38       25       29         33        36         42          55          60
                           B                                                    2.8                 38       20       24         28        32         35          36          45
                   12 13
31,000 to 31,300           n/a                                                  4.0                 38      n/a       n/a       n/a       n/a        n/a         n/a          n/a
                           B                                                    n/a                 38       20       24         28        32         35          36          36
71,000 to 76,000 (co-      N/A                                                  1.2                 43       35       40         45        50         50          55          55
polar)14
71,000 to 76,000 (cross-   N/A                                                  1.2                 43       45       50         50        55         55          55          55
polar)14
81,000 to 86,000 (co-      N/A                                                  1.2                 43       35       40         45        50         50          55          55
polar)14
81,000 to 86,000 (cross-   N/A                                                  1.2                 43       45       50         50        55         55          55          55
polar)14
92,000 to 95,000           N/A                                                  0.6                50.0      36       40         45        50         55          55          55
1
 If a licensee chooses to show compliance using maximum beamwidth to 3 dB points, the beamwidth limit shall apply in both the azimuth and the elevation
planes.

2
    Except for Multiple Address System frequencies listed in §§ 101.147(b)(1) through (b)(4), where omnidirectional antennas may be used.

3   Antennas used at outlying stations as part of a central protection alarm system need conform to only the following 2 standards:

(i) The minimum on-beam forward gain must be at least 10 dBi, and

(ii) The minimum front-to-back ratio must be at least 20 dB.

47 CFR 101.115(b)(2) (enhanced display)                                                                                                                          page 65 of 196
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                                                                                                                                          47 CFR 101.115(b)(2)
Fixed Microwave Services

4   Omnidirectional antennas may be authorized in the band 2150–2160 MHz.

5These antenna standards apply to all point-to-point stations authorized after June 1, 1997. Existing licensees and pending applicants on that date are
grandfathered and need not comply with these standards.

6   These antenna standards apply to all point-to-point stations authorized on or before June 1, 1997.

7 For stations authorized or pending on April 1, 2003, the minimum radiation suppression for Category B is 35dB in the 10,550–10,680 MHz band and 36 dB
in the 21,200–23,600 MHz band for discrimination angles from 100° to 180°.

8   These antenna standards apply only to DEMS User Stations licensed, in operation, or applied for prior to July 15, 1993.

9 Except for Temporary-fixed operations in the band 13200–13250 MHz with output powers less than 250 mW and as provided in § 101.147(q), and except
for antennas in the MVDDS service in the band 12.2–12.7 GHz.

10 DEMS User Station antennas in this band must meet performance Standard B and have a minimum antenna gain of 34 dBi. The maximum beamwidth
requirement does not apply to DEMS User Stations. DEMS Nodal Stations need not comply with these standards. Stations authorized to operate in the
24,250–25,250 MHz band do not have to meet these standards, however, the Commission may require the use of higher performance antennas where
interference problems can be resolved by the use of such antennas.

11   Except as provided in § 101.147(s).

12   The minimum front-to-back ratio shall be 38 dBi.

13   Mobile, except aeronautical mobile, stations need not comply with these standards.

14
   Antenna gain less than 50 dBi (but greater than or equal to 43 dBi) is permitted only with a proportional reduction in maximum authorized EIRP in a ratio
of 2 dB of power per 1 dB of gain, so that the maximum allowable EIRP (in dBW) for antennas of less than 50 dBi gain becomes + 55−2(50–G), where G is
the antenna gain in dBi. In addition, antennas in these bands must meet two additional standards for minimum radiation suppression: At angles between 1.2
and 5 degrees from the centerline of the main beam, co-polar discrimination must be G−28, where G is the antenna gain in dBi; and at angles of less than 5
degrees from the centerline of main beam, cross-polar discrimination must be at least 25 dB.

47 CFR 101.115(b)(2) (enhanced display)                                                                                                        page 66 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                         47 CFR 101.115(c)
Fixed Microwave Services

     (c) The Commission shall require the replacement of any antenna or periscope antenna system of a
         permanent fixed station operating at 932.5 MHz or higher that does not meet performance Standard A
         specified in paragraph (c) of this section, at the expense of the licensee operating such antenna, upon a
         showing that said antenna causes or is likely to cause interference to (or receive interference from) any
         other authorized or applied for station whereas a higher performance antenna is not likely to involve such
         interference. Antenna performance is expected to meet the standards of paragraph (c) of this section for
         parallel polarization. For cases of potential interference, an antenna will not be considered to meet
         Standard A unless the parallel polarization performance for the discrimination angle involved meets the
         requirements, even if the cross-polarization performance controls the interference.

     (d) In cases where passive reflectors are employed in conjunction with transmitting antenna systems, the
         foregoing paragraphs of this section also will be applicable. However, in such instances, the center of the
         major lobe of radiation from the antenna normally must be directed at the passive reflector, and the center
         of the major lobe of radiation from the passive reflector directed toward the receiving station with which it
         communicates.

     (e) Periscope antennas used at an electric power facility plant area will be excluded from the requirements of
         paragraph (c) of this section on a case-by-case basis where technical considerations or safety preclude
         the use of other types of antenna systems.

     (f) In the 10,700–11,700 MHz band, a fixed station may employ transmitting and receiving antennas meeting
         performance standard B in any area. If a Fixed Service or Fixed Satellite Service licensee or applicant
         makes a showing that it is likely to receive interference from such fixed station and that such interference
         would not exist if the fixed station used an antenna meeting performance standard A, the fixed station
         licensee must modify its use. Specifically, the fixed station licensee must either substitute an antenna
         meeting performance standard A or operate its system with an EIRP reduced so as not to radiate, in the
         direction of the other licensee, an EIRP in excess of that which would be radiated by a station using a
         Category A antenna and operating with the maximum EIRP allowed by the rules. A licensee or prior
         applicant using an antenna that does not meet performance Standard A may object to a prior
         coordination notice based on interference only if such interference would be predicted to exist if the
         licensee or prior applicant used an antenna meeting performance standard A.

     (g) In the event harmful interference is caused to the operation of other stations, the Commission may, after
         notice and opportunity for hearing, order changes to be made in the height, orientation, gain and radiation
         pattern of the antenna system.

[61 FR 26677, May 28, 1996]

Editorial Note: For FEDERAL REGISTER citations affecting § 101.115, see the List of CFR Sections Affected, which
appears in the Finding Aids section of the printed volume and at www.fdsys.gov.

§ 101.117 Antenna polarization.
Except as set forth herein, stations operating in the radio services included in this part are not limited as to the type
of polarization of the radiated signal that may be employed. However, in the event interference in excess of
permissible levels is caused to the operation of other stations as a result of employing other than linear polarization,
the Commission may order a licensee to change its system polarization to mitigate the interference. No change in
polarization may be made without prior authorization from the Commission. Unless otherwise allowed, only linear

47 CFR 101.117 (enhanced display)                                                                          page 67 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                        47 CFR 101.119
Fixed Microwave Services

polarization (horizontal and vertical) shall be used. For LMDS systems, unless otherwise authorized, system
operators are permitted to use any polarization within its service area, but only vertical and/or horizontal
polarization for antennas located within 20 kilometers of the outermost edge of their service area.

[68 FR 4957, Jan. 31, 2003]

§ 101.119 Simultaneous use of common antenna structures.
The simultaneous use of common antenna structures by more than one radio station, or by one of more domestic
public radio stations and one or more stations of any other class or service, may be authorized: provided, however,
that each licensee or user of any such structure is responsible for maintaining the structure, and for painting and
illuminating the structure when obstruction marking is required by the Commission. (See § 101.21(a).)

§ 101.125 Temporary fixed antenna height restrictions.
The overall antenna structure heights employed by mobile stations in the Local Television Transmission Service and
by stations authorized to operate at temporary fixed locations may not exceed the height criteria set forth in § 17.7
of this chapter, unless in each instance, authorization for use of a specific maximum antenna height (above ground
and above mean sea level) for each location has been obtained from the Commission prior to erection of the
antenna. Requests for such authorization must show the inclusive dates of the proposed operation. (Complete
information as to rules concerning the construction, marking and lighting of antenna structures is contained in part
17 of this chapter.)

§ 101.129 Transmitter location.
     (a) The applicant must determine, prior to filing an application for a radio station authorization, that the
         antenna site specified therein is adequate to render the service proposed. In cases of questionable
         antenna locations, it is desirable to conduct propagation tests to indicate the field intensity which may be
         expected in the principal areas or at the fixed points of communication to be served, particularly where
         severe shadow problems may be expected. In considering applications proposing the use of such
         locations, the Commission may require site survey tests to be made pursuant to an experimental license
         under part 5 of this chapter. In such cases, propagation tests should be conducted in accordance with
         recognized engineering methods and should be made with a transmitting antenna simulating, as near as
         possible, the proposed antenna installation. Full data obtained from such surveys and its analysis,
         including a description of the methods used and the name, address and qualifications of the engineer
         making the survey, must be supplied to the Commission.

     (b) In the 12.2–12.7 GHz band, licensees must not locate MVDDS transmitting antennas within 10 km of any
         qualifying NGSO FSS receiver unless mutual agreement is obtained between the MVDDS and NGSO FSS
         licensees. Such agreements must be retained by the licensees and made available for inspection by
         interested parties upon request.

           (1) A qualifying NGSO FSS receiver, for the purposes of this section, is deemed to be one that is in
               regular use by an NGSO FSS subscriber for normal reception purposes in the 12.2–12.7 GHz band
               and not one for monitoring or testing purposes. In addition, qualifying receivers must either be in
               operation on the date or already be under construction and then operating within thirty days of the
               date that the MVDDS licensee notifies the NGSO FSS licensee of its intent to construct a new
               MVDDS transmitting antenna at a specified location.

47 CFR 101.129(b)(1) (enhanced display)                                                                 page 68 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                           47 CFR 101.129(b)(2)
Fixed Microwave Services

           (2) Except as provided in paragraph (b)(3) of this section, the 10 kilometer spacing requirement for each
               MVDDS transmitting antenna site shall not apply with respect to NGSO FSS receivers that might be
               installed or become operational (except for those under construction and operating within thirty days
               as specified in paragraph (b)(1) of this section) subsequent to the original date that the MVDDS
               licensee provided notice of its intention to construct a given transmission facility.

           (3) In the event that a proposed MVDDS transmitting antenna for which notice has been duly given to the
               NGSO FSS licensees has not been placed in normal operation within one calendar year of the date of
               notice, then the MVDDS licensee loses the benefit of the original notice. Upon such anniversary, the
               MVDDS licensee must re-determine compliance with the minimum 10 kilometer spacing requirement
               based upon locations of qualifying NGSO FSS receivers on that anniversary date. A new
               determination of compliance with the spacing requirement shall be made for each succeeding
               anniversary of non-operation for each proposed MVDDS transmission site or additional antenna.
               This provision contemplates that failure to commence normal operation at a given MVDDS
               transmitting antenna site within one year of the date of NGSO FSS notification may require
               successive relocations of the proposed transmitter site in order to meet the minimum spacing
               distance as determined on each anniversary of non-operation.

[61 FR 26677, May 28, 1996, as amended at 63 FR 68983, Dec. 14, 1998; 67 FR 43038, June 26, 2002; 78 FR 25176, Apr. 29, 2013]

§ 101.131 Transmitter construction and installation.
     (a) The equipment at the operating and transmitting positions must be so installed and protected that it is not
         accessible to, or capable of being operated by, persons other than those duly authorized by the licensee.

     (b) In any case where the maximum modulating frequency of a transmitter is prescribed by the Commission,
         the transmitter must be equipped with a low-pass or band-pass modulation filter of suitable performance
         characteristics. In those cases where a modulation limiter is employed, the modulation filter must be
         installed between the transmitter stage in which limiting is effected and the modulated stage of the
         transmitter.

     (c) Each transmitter employed in these services must be equipped with an appropriately labeled pilot lamp or
         meter which will provide continuous visual indication at the transmitter when its control circuits have
         been placed in a condition to activate the transmitter. In addition, facilities must be provided at each
         transmitter to permit the transmitter to be turned on and off independently of any remote control circuits
         associated therewith.

     (d) At each transmitter control point the following facilities must be installed:

           (1) A carrier operated device which will provide continuous visual indication when the transmitter is
               radiating, or, in lieu thereof, a pilot lamp or meter which will provide continuous visual indication
               when the transmitter control circuits have been placed in a condition to activate the transmitter; and

           (2) Facilities which will permit the operator to turn transmitter carrier on and off at will.

     (e) Transmitter control circuits from any control point must be so installed that grounding or shorting any line
         in the control circuit will not cause the transmitter to radiate: provided, however, That this provision will
         not be applicable to control circuits of stations which normally operate with continuous radiation or to
         control circuits which are under the effective operational control of responsible operating personnel 24
         hours per day.

47 CFR 101.131(e) (enhanced display)                                                                            page 69 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                                47 CFR 101.133
Fixed Microwave Services

§ 101.133 Limitations on use of transmitters.
     (a) Transmitters licensed for operation in Common Carrier services may be concurrently licensed or used for
         non-common carrier communication purposes. Mobile units may be concurrently licensed or used for
         non-common carrier communication purposes provided that the transmitter is certificated for use in each
         service.

     (b) Private operational fixed point-to-point microwave stations authorized in this service may communicate
         with associated operational-fixed stations and fixed receivers and with units of associated stations in the
         mobile service licensed under Private Radio Service rule parts. In addition, intercommunication is
         permitted with other licensed stations and with U.S. Government stations in those cases which require
         cooperation or coordination of activities or when cooperative use arrangements in accordance with §
         101.135 are contemplated; provided, however, that where communication is desired with stations
         authorized to operate under the authority of a foreign jurisdiction, prior approval of this Commission must
         be obtained; And provided further, That the authority under which such other stations operate does not
         prohibit the intercommunication.

     (c) Two or more persons or governmental entities eligible for private operational fixed point-to-point
         microwave licenses may use the same transmitting equipment under the following terms and conditions:

           (1) Each licensee complies with the general operating requirements set out in this part;

           (2) Each licensee is eligible for the frequency(ies) on which the facility operates; and

           (3) Each licensee must have the ability to access the transmitter(s) that it is authorized to operate under
               the multiple licensing arrangement.

     (d) LMDS subscriber transmissions. LMDS licensees shall not operate transmitters from subscriber locations
         in the 29.1–29.25 GHz band.

     (e) Existing private operational fixed wireless licensees applying to become common carrier wireless
         licensees shall comply with all provisions of the Communications Act and the Commission's rules.
         Applicants must take all required filings, including FCC Form 601, and receive all necessary Commission
         approval prior to operating as a common carrier wireless licensee. The regulatory fee associated with FCC
         wireless application Form 601 is waived for applicants who are existing private operational fixed
         licensees seeking common carrier status, provided that such licensees have also complied with all other
         discontinuance requirements of Title II of the Act. Applicants are responsible for all other Commission
         regulatory fees.

[61 FR 26677, May 28, 1996, as amended at 61 FR 44183, Aug. 28, 1996; 63 FR 36611, July 7, 1998; 68 FR 4957, Jan. 31, 2003]

§ 101.135 Shared use of radio stations and the offering of private carrier service.
Licensees of Private Operational Fixed Point-to-Point Microwave radio stations may share the use of their facilities
on a non-profit basis or may offer service on a for-profit private carrier basis, subject to the following conditions and
limitations:

     (a) Persons or governmental entities licensed to operate radio systems pursuant to subpart H of this part on
         any of the private radio frequencies set out in § 101.101 may share such systems with, or provide private
         carrier service to, any eligible entity for licensing under this part, regardless of individual eligibility
         restrictions, provided that the communications being carried are permissible under § 101.603.

47 CFR 101.135(a) (enhanced display)                                                                            page 70 of 196
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                                                                                                             47 CFR 101.135(b)
Fixed Microwave Services

     (b) The licensee must maintain access to and control over all facilities authorized under its license;

     (c) All sharing and private carrier arrangements must be conducted pursuant to a written agreement to be
         kept as part of the station records; and

     (d) The licensee must keep an up-to-date list of system sharers and private carrier subscribers and the basis
         of their eligibility under this part. Such records must be kept current and must be made available upon
         request for inspection by the Commission.

     (e) Applicants licensed in the MAS frequencies after June 2, 2000, shall not provide service to others on a for-
         profit private carrier basis in the 928–928.85/952–952.85/956.25–956.45 MHz bands and the
         932.25–932.5/941.25–941.5 MHz bands.

[61 FR 26677, May 28, 1996, as amended at 65 FR 17449, Apr. 3, 2000; 65 FR 38330, June 20, 2000; 66 FR 35110, July 3, 2001; 68
FR 4958, Jan. 31, 2003]

§ 101.137 Interconnection of private operational fixed point-to-point microwave stations.
Private operational fixed point-to-point microwave stations may be interconnected with facilities of common
carriers subject to applicable tariffs.

§ 101.139 Authorization of transmitters.
     (a) Unless specified otherwise, transmitters used in the private operational fixed and common carrier fixed
         point-to-point microwave and point-to-multipoint services under this part must be a type that has been
         approved for compliance under Supplier's Declaration of Conformity.

           Note 1 to paragraph (a): The verification procedure has been replaced by Supplier's Declaration of
           Conformity. Equipment previously authorized under subpart J of part 2 of this chapter may remain
           in use. See § 2.950 of this chapter.

     (b) Any transmitter to be produced for use under the rules of this part may be approved under the equipment
         authorization procedures set forth in part 2 of this chapter.

     (c) Certification for an individual transmitter may also be requested by an applicant for a station
         authorization, pursuant to the procedures set forth in part 2 of this chapter.

     (d) A transmitter presently shown on an instrument of authorization, which operates on an assigned
         frequency in the 890–940 MHz band and has not received a grant of certification, may continue to be
         used by the licensee without certification provided such transmitter continues otherwise to comply with
         the applicable requirements of this chapter.

     (e) Certification or Supplier's Declaration of Conformity is not required for portable transmitters operating
         with peak output power not greater than 250 mW. If operation of such equipment causes harmful
         interference the FCC may, at its discretion, require the licensee to take such corrective action as is
         necessary to eliminate the interference.

     (f) After July 15, 1996, the manufacturer (except for export) or importation of equipment employing digital
         modulation techniques in the 3700–4200, 5925–6425, 6525–6875, 10,550–10,680 and 10,700–11,700
         MHz bands must meet the minimum payload capacity requirements of § 101.141.

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                                                                                                              47 CFR 101.139(g)
Fixed Microwave Services

     (g) After April 1, 2005, the manufacture (except for export) or importation of equipment for operation in the
         21,200–23,600 MHz band must meet:

            (1) The 0.001% frequency tolerance requirement for digital systems in § 101.107(a) or the 0.03–0.003%
                frequency tolerance for analog systems; and

            (2) For equipment employing digital modulation techniques, the minimum bit rate requirements of §
                101.141(a).

     (h) 71,000–76,000 MHz; 81,000–86,000 MHz. For equipment employing digital modulation techniques, the
         minimum bit rate requirement is 0.125 bit per second per Hz.

      (i)   92,000–94,000 MHz; 94,100–95,000 MHz. For equipment employing digital modulation techniques, the
            minimum bit rate requirement is 1.0 bit per second per Hz.

[63 FR 36611, July 7, 1998, as amended at 65 FR 59358, Oct. 5, 2000; 67 FR 43038, June 26, 2002; 68 FR 4958, Jan. 31, 2003; 70
FR 29998, May 25, 2005; 82 FR 50838, Nov. 2, 2017]

§ 101.141 Microwave modulation.
     (a) Microwave transmitters employing digital modulation techniques and operating below 25.25 GHz (except
         for MVDDS stations in the 12,200–12,700 MHz band) must, with appropriate multiplex equipment, comply
         with the following additional requirements:

            (1) The bit rate, in bits per second, must be equal to or greater than the bandwidth specified by the
                emission designator in Hertz (e.g., to be acceptable, equipment transmitting at a 20 Mb/s rate must
                not require a bandwidth of greater than 20 MHz), except the bandwidth used to calculate the
                minimum rate may not include any authorized guard band.

                 (i)   Stations authorized prior to December 1, 1988 may install equipment after that date with no
                       minimum bit rate. Equipment applied for or authorized prior to April 1, 2005 in the 21.2–23.6
                       GHz band may be installed with no minimum bit rate.

                 (ii) However, any digital equipment applied for after April 1, 2005 and equipment replacing existing
                      equipment in the 21.2–23.6 GHz band must meet the bit rate standard.

            (2) Equipment to be used for voice transmission placed in service, authorized, or applied for on or before
                June 1, 1997 in the 2110 to 2130 and 2160 to 2180 MHz bands must be capable of satisfactory
                operation within the authorized bandwidth to encode at least 96 voice channels. Equipment placed in
                service, authorized, or applied for on or before June 1, 1997 in the 3700–4200, 5925–6425 (30 MHz
                bandwidth), and 10,700–11,700 MHz (30 and 40 MHz bandwidths) bands must be capable of
                satisfactory operation within the authorized bandwidth to encode at least 1152 voice channels.
                These required loading levels may be reduced by a factor of 1/N provided that N transmitters may be
                operated satisfactorily, over the same radio path, within an authorized bandwidth less than, or equal
                to, the maximum authorizable bandwidth (e.g., the 1152 channel requirement may be reduced to 576
                if two transmitters can be satisfactorily operated over the same path within the maximum
                bandwidth). Where certificated equipment is designed to operate on the same frequency in a cross
                polarized configuration to meet the above capacity requirements, the Commission will require, at the
                time additional transmitters are authorized, that both polarizations of a frequency be used before a
                new frequency assignment is made, unless a single transmitter installation was found to be justified
                by the Commission at the time it authorized the first transmitter.

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                                                                                                       47 CFR 101.141(a)(3)
Fixed Microwave Services

           (3)

                 (i)   Except as noted in paragraph (a)(7) of this section, the payload capacity of equipment shall
                       meet the following minimum efficiency standards:

                                          Emission bandwidth     Emission bandwidth >5 MHz and     Emission bandwidth
                          Frequency
                                               ≤5 MHz                       ≤20 MHz                     >20 MHz
                        3,700–10,550     2.4 bits/second/Hertz   4.4 bits/second/Hertz            4.4 bits/second/Hertz.
                        MHz
                        10,550–13,250    2.4 bits/second/Hertz   4.4 bits/second/Hertz            3.0 bits/second/Hertz.
                        MHz

                 (ii) Traffic loading payload shall exceed 50 percent of payload capacity within 30 months of
                      licensing. During anomalous signal fading, licensees subject to the capacity and loading
                      requirements may adjust to a modulation specified in their authorization if such modulation is
                      necessary to allow licensees to maintain communications, even if the modulation will not
                      comply with the capacity and loading requirements specified in this paragraph. Links that must
                      comply with the capacity and loading requirements that use equipment capable of adjusting
                      modulation must be designed using generally accepted multipath fading and rain fading
                      models to meet the specified capacity and loading requirements at least 99.95% of the time, in
                      the aggregate of both directions in a two-way link.

           (4) If a transmitter is authorized to operate in a bandwidth that is not listed in paragraph (a)(3) of this
               section, it must meet the minimum payload capacity and traffic loading requirements of the next
               largest channel bandwidth listed in the table; e.g., if the authorized bandwidth is 3.5 MHz, the
               minimum payload capacity must be 12.3 Mbits/s.

           (5) Transmitters carrying digital motion video motion material are exempt from the requirements
               specified in paragraphs (a)(2) and (a)(3) of this section, provided that at least 50 percent of the
               payload is digital video motion material and the minimum bit rate specified in paragraph (a)(1) of
               this section is met. In the 6, 10, and 11 GHz bands, concatenation of multiple contiguous channels is
               permitted for channels of equal bandwidth on center frequencies, provided no other channels are
               available and the minimum payload capacity requirements are met.

           (6) Digital systems using bandwidths of 10 MHz or larger will be considered 50 percent loaded when at
               least 50 percent of their total capacity is being used. For purposes of this subsection, a Fixed Service
               channel is being used if it is attached to a communications system that is capable of providing data
               to it at a rate that is sufficient to occupy at least 50 percent of the payload capacity of the Fixed
               Service channel, after header compression is applied.

           (7) Equipment placed in service after June 1, 1997 and prior to October 5, 2012 may comply with the
               provisions of § 101.141(a)(3) in effect as of the date the equipment was placed in service.

     (b) For purposes of compliance with the emission limitation requirements of § 101.111(a)(2) and the
         requirements of paragraph (a) of this section, digital modulation techniques are considered as being
         employed when digital modulation occupies 50 percent or more to the total peak frequency deviation of a
         transmitted radio frequency carrier. The total peak frequency deviation will be determined by adding the
         deviation produced by the digital modulation signal and the deviation produced by any frequency division
         multiplex (FDM) modulation used. The deviation (D) produced by the FDM signal must be determined in
         accordance with § 2.202(f) of this chapter.

47 CFR 101.141(b) (enhanced display)                                                                        page 73 of 196
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                                                                                                             47 CFR 101.141(c)
Fixed Microwave Services

     (c) Analog Modulation. Except for video transmission, an application for an initial working channel for a given
         route will not be accepted for filing where the anticipated loading (within five years for voice, or other
         period subject to reasonable projection) is less than the minimum specified for the following frequency
         bands. Absent extraordinary circumstances, applications proposing additional frequencies over existing
         routes will not be granted unless it is shown that the traffic load will shortly exhaust the capacity of the
         existing equipment. Where no construction of radio facilities is requested, licensees must submit this
         evidence with their filing of any necessary authority required pursuant to section 214 of the
         Communications Act and part 63 of this chapter.

          Frequency band (MHz)                 Minimum number of voice channels (4 KHz or equivalent)
 3700 to 4200 (20 MHz bandwidth)                                                                       900
 5925 to 6425 (10 MHz bandwidth)                                                                       300
 5925 to 6425 (20 MHz bandwidth)                                                                       600
 5925 to 6425 (30 MHz bandwidth)                                                                       900
 6525 to 6875 (10 MHz bandwidth)                                                                       300
 10,700 to 11,700 (10 MHz bandwidth)                                                                   300
 10,700 to 11,700 (20 MHz bandwidth)                                                                   600
 10,700 to 11,700 (30 MHz bandwidth)                                                                   900
 10,700 to 11,700 (40 MHz bandwidth)                                                                   900

[61 FR 26677, May 28, 1996, as amended at 62 FR 24583, May 6, 1997; 63 FR 36611, July 7, 1998; 65 FR 59358, Oct. 5, 2000; 67
FR 43039, June 26, 2002; 68 FR 4958, Jan. 31, 2003; 76 FR 59572, Sept. 27, 2011; 77 FR 54433, Sept. 5, 2012]

§ 101.143 Minimum path length requirements.
     (a) The distance between end points of a fixed link in the private operational fixed point-to-point and the
         common carrier fixed point-to-point microwave services must equal or exceed the value set forth in the
         table below or the EIRP must be reduced in accordance with the equation set forth below:

                          Frequency band (MHz)                              Minimum path length (km)
            Below 1,850                                                                                           N/A
            1,850 to 7,125                                                                                         17
            10,550 to 13,250                                                                                        5
            Above 17,700                                                                                          N/A

     (b) For paths shorter than those specified in the table in paragraph (a) of this section, the EIRP shall not
         exceed the value derived from the following equation:

           EIRP = MAXEIRP–40*log(A/B) dBW
     Where: EIRP = The new maximum EIRP (equivalent isotropically radiated power) in dBW. MAXEIRP = Maximum
     EIRP as set forth in the Table in Section 101.113(a).

     A = Minimum path length from the Table above for the frequency band in kilometers.

     B = The actual path length in kilometers.

47 CFR 101.143(b) (enhanced display)                                                                            page 74 of 196
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                                                                                                       47 CFR 101.143(c)
Fixed Microwave Services

           Note to paragraph (b): For transmitters using Automatic Transmitter Power Control, EIRP
           corresponds to the maximum transmitter power available, not the coordinated transmit power or
           the nominal transmit power.

     (c) Upon an appropriate technical showing, applicants and licensees unable to meet the minimum path length
         requirement may be granted an exception to these requirements.

           Note to paragraph (c): Links authorized prior to April 1, 1987, need not comply with this
           requirement.

[61 FR 26677, May 28, 1996, as amended at 65 FR 38330, June 20, 2000]

§ 101.145 Interference to geostationary-satellites.
These limitations are necessary to minimize the probability of harmful interference to reception in the bands
2655–2690 MHz, 5925–7075 MHz, and 12.7–13.25 GHz on board geostationary-space stations in the fixed-satellite
service.

     (a) Stations authorized prior to July 1, 1976 in the band 2655–2690 MHz, which exceed the power levels in
         paragraphs (b) and (c) of this section are permitted to operate indefinitely, provided that the operation of
         such stations does not result in harmful interference to reception in these bands on board geostationary
         space stations.

     (b) 2655 to 2690 MHz and 5925 to 7075 MHz. No directional transmitting antenna utilized by a fixed station
         operating in these bands with EIRP greater than 35 dBW may be aimed within 2 degrees of the
         geostationary-satellite orbit, taking into account atmospheric refraction. However, exception may be made
         in unusual circumstances upon a showing that there is no reasonable alternative to the transmission path
         proposed. If there is no evidence that such exception would cause possible harmful interference to an
         authorized satellite system, said transmission path may be authorized on waiver basis where the
         maximum value of the equivalent isotropically radiated power (EIRP) does not exceed:

           (1) + 47 dBW for any antenna beam directed within 0.5 degrees of the stationary satellite orbit; or

           (2) + 47 to + 55 dBW, on a linear decibel scale (8 dB per degree) for any antenna beam directed between
               0.5 degrees and 1.5 degrees of the stationary orbit.

     (c) 12.7 to 13.25 GHz. No directional transmitting antenna utilized by a fixed station operating in this band
         with EIRP greater than 45 dBW may be aimed within 1.5 degrees of the geostationary-satellite orbit, taking
         into account atmospheric refraction.

     (d) Methods for calculating the azimuths to be avoided may be found in: CCIR Report No. 393 (Green Books),
         New Delhi, 1970; in “Radio-Relay Antenna Pointing for controlled Interference With Geostationary-
         Satellites” by C. W. Lundgren and A. S. May, Bell System Technical Journal, Vol. 48, No. 10, pp.
         3387–3422, December 1969; and in “Geostationary Orbit Avoidance Computer Program” by Richard G.
         Gould, Common Carrier Bureau Report CC–7201, FCC, Washington, DC, 1972. This latter report is
         available through the National Technical Information Service, U.S. Department of Commerce, Springfield,
         VA 22151, in printed form (PB–211 500) or source card deck (PB–211 501).

47 CFR 101.145(d) (enhanced display)                                                                     page 75 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                               47 CFR 101.147
Fixed Microwave Services

[61 FR 26677, May 28, 1996, as amended at 65 FR 38330, June 20, 2000; 68 FR 12777, Mar. 17, 2003; 77 FR 54433, Sept. 5, 2012]

§ 101.147 Frequency assignments.
     (a) Frequencies in the following bands are available for assignment for fixed microwave services.

     928.0–929.0 MHz (28)

     932.0–932.5 MHz (27)

     932.5–935 MHz (17)

     941.0–941.5 MHz (27)

     941.5–944 MHz (17) (18)

     952.0–960.0 MHz (28)

     1,850–1,990 MHz (20) (22)

     2,110–2,130 MHz) (1) (3) (7) (20) (23)

     2,130–2,150 MHz (20) (22)

     2,160–2,180 MHz (1) (2) (20) (23)

     2,180–2,200 MHz (20) (22)

     2,450–2,500 MHz (12)

     2,650–2,690 MHz

     3,700–4,200 MHz (8) (14) (25)

     5,925–6,425 MHz (6) (14) (25)

     6,425–6,525 MHz (24)

     6,525–6.875 MHz (14) (33)

     6,875–7,125 MHz (10), (34)

     10,550–10,680 MHz (19)

     10,700–11,700 MHz (8) (9) (19) (25)

     11,700–12,200 MHz (24)

47 CFR 101.147(a) (enhanced display)                                                                           page 76 of 196
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                                                           47 CFR 101.147(a)
Fixed Microwave Services

     12,200–12,700 MHz (31)

     12,700–13,200 (22), (34)

     13,200–13,250 MHz (4) (24) (25)

     14,200–14,400 MHz (24)

     17,700–18,820 MHz (5) (10) (15)

     17,700–18,300 MHz (10) (15)

     18,820–18,920 MHz (22)

     18,300–18,580 MHz (5) (10) (15)

     18,580–19,300 MHz (22) (30)

     18,920–19,160 MHz (5 (10) (15)

     19,160–19,260 MHz (22)

     19,260–19,700 MHz (5) (10) (15)

     19,300–19,700 MHz (5) (10) (15)

     21,200–22,000 MHz (4) (11) (12) (13) (24) (25) (26)

     22,000–23,600 MHz (4) (11) (12) (24) (25) (26)

     24,250–25,250 MHz

     29,100–29,250 MHz (5), (16)

     31,000–31,300 MHz (16)

     42,000–42,500 MHz

     71,000–76,000 MHz (5) (17)

     81,000–86,000 MHz (5) (17)

     92,000–94,000 MHz (17)

     94,100–95,000 MHz (17)

47 CFR 101.147(a) (enhanced display)                         page 77 of 196
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                                                                                                        47 CFR 101.147(a)
Fixed Microwave Services

                                                           NOTES

     (1) Frequencies in this band are shared with control and repeater stations in the Public Mobile Services and
     with stations in the International Fixed Public Radio communication Services located south of 25°30′ north
     latitude in the State of Florida and U. S. possessions in the Caribbean area. Additionally, the band 2160–2162
     MHz is shared with stations in the Multipoint Distribution Service.

     (2) Except upon showing that no alternative frequencies are available, no new assignments will be made in the
     band 2160–2162 MHz for stations located within 80.5 kilometers (50 miles) of the coordinates of the cities
     listed in § 21.901(c) of this chapter.

     (3) Television transmission in this band is not authorized and radio frequency channel widths may not exceed
     3.5 MHz.

     (4) Frequencies in this band are shared with fixed and mobile stations licensed in other services.

     (5) Frequencies in this band are shared with stations in the fixed-satellite service.

     (6) These frequencies are not available for assignment to mobile earth stations.

     (7) Frequencies in the band 2110–2120 MHz may be authorized on a case-by-case basis to Government or
     non-Government space research earth stations for telecommand purposes in connection with deep space
     research.

     (8) This frequency band is shared with station(s) in the Local Television Transmission Service for locations
     outside the contiguous United States and applications for new permanent or temporary facilities in this band
     will not be accepted for locations in the contiguous United States. Existing licensees as of April 19, 2018, for
     permanent and temporary point-to-point Fixed Service links in the contiguous United States have until
     December 5, 2023, to self-relocate their point-to-point links out of the 3,700–4,200 MHz band. This frequency
     band is also shared in the U.S. Possessions in the Caribbean area, with stations in the International Fixed
     Public Radiocommunications Services.

     (9) The band segments 10.95–11.2 and 11.45–11.7 GHz are shared with space stations (space to earth) in the
     fixed-satellite service.

     (10) This band is co-equally shared with stations in the fixed services under parts 74, 78 and 101 of this
     chapter.

     (11) Frequencies in this band are shared with Government stations.

     (12) Frequencies in this band are available for assignment to the common carrier and private-operational fixed
     point-to-point microwave services.

     (13) Frequencies in this band are shared with stations in the earth exploration satellite service (space to earth).

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                                                                                                        47 CFR 101.147(a)
Fixed Microwave Services

     (14) Frequencies in this band are shared with stations in the fixed satellite service. For 3,700–4,200 MHz,
     frequencies are only available for locations outside the contiguous United States and applications for new
     permanent or temporary facilities in this band will not be accepted for locations in the contiguous United
     States. Existing licensees as of April 19, 2018, of permanent and temporary point-to-point Fixed Service links in
     the contiguous United States have until December 5, 2023, to self-relocate their point-to-point links out of the
     3,700–4,200 MHz.

     (15) Stations licensed as of September 9, 1983 to use frequencies in the 17.7–19.7 GHz band may, upon proper
     application, continue to be authorized for such operation.

     (16) As of June 30, 1997, frequencies in these bands are available for assignment only to LMDS radio stations,
     except for non-LMDS radio stations authorized pursuant to applications refiled no later than June 26, 1998.

     (17) Frequencies in these bands are shared with Government fixed stations and stations in the Private
     Operational Fixed Point-to-Point Microwave Service (part 101).

     (18) Frequencies in the 942 to 944 MHz band are also shared with broadcast auxiliary stations.

     (19) Frequencies in this band are shared with stations in the private-operational fixed point-to-point microwave
     service.

     (20) New facilities in these bands will be licensed only on a secondary basis. Facilities licensed or applied for
     before January 16, 1992, are permitted to make minor modifications in accordance with § 101.81 and retain
     their primary status.

     (21) Any authorization of additional stations to use the 2160–2162 MHz band for Multipoint Distribution
     Service applied for after January 16, 1992, will be secondary to use of the band for emerging technology
     services.

     (22) Frequencies in these bands are for the exclusive use of Private Operational Fixed Point-to-Point Microwave
     Service (part 101). Frequencies in the 12,700–13,200 MHz band, which were available only to stations
     authorized in the 12,200–12,700 MHz band as of September 9, 1983, are not available for new facilities.

     (23) Frequencies in these bands are for the exclusive use of Common Carrier Fixed Point-to-Point Microwave
     Service (part 101).

     (24) Frequencies in these bands are available for assignment to television pickup and television non-broadcast
     pickup stations. The maximum power for the local television transmission service in the 14.2–14.4 GHz band
     is + 45 dBW except that operations are not permitted within 1.5 degrees of the geostationary orbit. Beginning
     March 1, 2005, no new LTTS operators will be licensed and no existing LTTS licenses shall be issued in the
     11.7–12.2 and 14.2–14.4 GHz bands.

     (25) Frequencies in these bands are available for assignment to television STL stations. For 3,700–4,200 MHz,
     frequencies are only available for locations outside the contiguous United States and applications for new
     permanent or temporary facilities in this band will not be accepted for locations in the contiguous United

47 CFR 101.147(a) (enhanced display)                                                                       page 79 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                        47 CFR 101.147(b)
Fixed Microwave Services

     States. Existing licensees as of April 19, 2018, of permanent and temporary point-to-point Fixed Service links in
     the contiguous United States have until December 5, 2023, to self-relocate their point-to-point links out of the
     3,700–4,200 MHz band.

     (26) Frequencies from 21.8–22.0 GHz and 23.0–23.2 GHz may be authorized for low power, limited coverage
     systems subject to the provisions of paragraph (s)(8) of this section.

     (27) Frequencies in the 932 to 932.5 MHz and 941 to 941.5 MHz bands are shared with Government fixed
     point-to-multipoint stations. Frequencies in these bands are paired with one another and are available for
     flexible use for transmission of the licensee's products and information services, excluding video entertainment
     material. 932.00625/941.00625 MHz to 932.24375/941.24375 MHz is licensed by Economic Area. 932.25625/
     941.25625 MHz to 932.49375/941.49375 MHz is licensed on a site-by-site basis.

     (28) Licensees that obtain authorizations in the 928/952/956 MHz MAS bands subsequent to July 1, 1999 are
     limited to private internal services, as defined in § 101.1305. Incumbent operations in the 928/952/956 MHz
     MAS bands, as defined in § 101.1331(a), are subject to grandfather rights pursuant to § 101.1331. The
     928.85–929.0 MHz and 959.85–960.0 MHz bands are licensed on a geographic area basis with no eligibility
     restrictions. The 928.0–928.85 MHz band paired with the 952.0–952.85 MHz band, in addition to unpaired
     frequencies in the 956.25–956.45 MHz band, are licensed on a site-by-site basis and used for terrestrial point-
     to-point and point-to-multipoint fixed and limited mobile operations. The 928.85–929.0 MHz band paired with
     the 959.85–960.0 MHz band is licensed by Economic Area and used for terrestrial point-to-point and point-to-
     multipoint fixed operations.

     (29) Frequencies in this band are shared with stations in the Multipoint Distribution Service (part 21). These
     frequencies may be used for the transmission of the licensee's products and information services, excluding
     video entertainment material to the licensee's customers.

     (30) The frequency band 18,580–19,300 GHz is not available for new licensees after June 8, 2000, except for
     low power indoor stations in the band 18,820–18,870 MHz and 19,160–19,210 MHz.

     (31) This frequency band can be used for Multichannel Video Distribution and Data Service (MVDDS) shared
     with Direct Broadcast Satellite (DBS) Services on a co-primary non-harmful interference basis and on a co-
     primary basis with NGSO FSS satellite earth stations. Incumbent private operational fixed point-to-point
     licensees can also use these frequencies on a site by site basis.

     (32) Frequencies in this band are shared with stations in the fixed-satellite service, subject to the conditions
     specified in footnote 15 of § 25.202(a)(1) of this chapter, see 47 CFR 47 25.202(a)(1) n.16.

     (33) The coordination of a new 30 megahertz link in the 6,525–6,875 MHz band should be attempted only if it
     cannot be accommodated in the 5,925–6,425 MHz band.

     (34) In the bands 6,875–7,125 MHz and 12,700–13,150 MHz, links shall not intersect with the service areas of
     television pickup stations.

     (b) Frequencies normally available for assignment in this service are set forth with applicable limitations in
         the following tables: 928–960 MHz Multiple address system (MAS) frequencies are available for the
         point-to-multipoint and point-to-point transmission of a licensee's products or services, excluding video

47 CFR 101.147(b) (enhanced display)                                                                       page 80 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                       47 CFR 101.147(b)(1)
Fixed Microwave Services

           entertainment material, to a licensee's customer or for its own internal communications. The paired
           frequencies listed in this section are used for two-way communications between a master station and
           remote stations. Ancillary one-way communications on paired frequencies are permitted on a case-by-
           case basis. Ancillary communications between interrelated master stations are permitted on a secondary
           basis. The normal channel bandwidth assigned will be 12.5 kHz. EA licensees, however, may combine
           contiguous channels without limit or justification. Site-based licensees may combine contiguous
           channels up to 50 kHz, and more than 50 kHz only upon a showing of adequate justification. Any
           bandwidth (12.5 kHz, 25 kHz or greater) authorized in accordance with this section may be subdivided
           into narrower bandwidths to create additional (or sub) frequencies without the need to specify each
           discrete frequency within the specific bandwidth. Equipment that is used to create additional frequencies
           by narrowing bandwidth (whether authorized for a 12.5 kHz, 25 kHz or greater bandwidth) will be required
           to meet, at a minimum, the ±0.00015 percent tolerance requirement so that all subfrequencies will be
           within the emission mask. Systems licensed for frequencies in these MAS bands prior to August 1, 1975,
           may continue to operate as authorized until June 11, 1996, at which time they must comply with current
           MAS operations based on the 12.5 kHz channelization set forth in this paragraph. Systems licensed
           between August 1, 1975, and January 1, 1981, inclusive, are required to comply with the grandfathered 25
           kHz standard bandwidth and channelization requirements set forth in this paragraph. Systems originally
           licensed after January 1, 1981, and on or before May 11, 1988, with bandwidths of 25 kHz and above, will
           be grandfathered indefinitely.

           Note to paragraph (b) introductory text: Paragraphs (b)(1) through (b)(5) and Tables 1 through 7 of
           this section pertain to Multiple Address System (MAS) frequencies and paragraph (b)(6) and
           Tables 8 through 11 of this section pertain to Point-To-Point frequencies.

           (1) Frequencies listed in this paragraph are designated for private internal use and are subject to site-
               based licensing.

                                               Table 1—Paired Frequencies (MHz)

                [12.5 kHz bandwidth]

                                    Remote transmit                                  Master transmit
                 928.00625                                                                                   952.00625
                 928.01875                                                                                   952.01875
                 928.03125                                                                                   952.03125
                 928.04375                                                                                   952.04375
                 928.05625                                                                                   952.05625
                 928.06875                                                                                   952.06875
                 928.08125                                                                                   952.08125
                 928.09375                                                                                   952.09375
                 928.10625                                                                                   952.10625
                 928.11875                                                                                   952.11875
                 928.13125                                                                                   952.13125
                 928.14375                                                                                   952.14375

47 CFR 101.147(b)(1) (enhanced display)                                                                     page 81 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                              47 CFR 101.147(b)(1)
Fixed Microwave Services

                                      Remote transmit                       Master transmit
                 928.15625                                                                          952.15625
                 928.16875                                                                          952.16875
                 928.18125                                                                          952.18125
                 928.19375                                                                          952.19375
                 928.20625                                                                          952.20625
                 928.21875                                                                          952.21875
                 928.23125                                                                          952.23125
                 928.24375                                                                          952.24375
                 928.25625                                                                          952.25625
                 928.26875                                                                          952.26875
                 928.28125                                                                          952.28125
                 928.29375                                                                          952.29375
                 928.30625                                                                          952.30625
                 928.31875                                                                          952.31875
                 928.33125                                                                          952.33125
                 928.34375                                                                          952.34375

                                                   Unpaired Frequencies (MHz)

                [12.5 kHz bandwidth]

                                  D                                 D                     D
                 956.25625                              956.33125           956.39375
                 956.26875                              956.34375           956.40625
                 956.28125                              956.35625           956.41875
                 956.29375                              956.36875           956.43125
                 956.30625                              956.38125           956.44375
                 956.31875

                                               Table 2—Paired Frequencies (MHz)

                [25 kHz bandwidth]

                                      Remote transmit                       Master transmit
                 928.0125                                                                            952.0125
                 928.0375                                                                            952.0375
                 928.0625                                                                            952.0625
                 928.0875                                                                            952.0875
                 928.1125                                                                            952.1125
                 928.1375                                                                            952.1375
                 928.1625                                                                            952.1625

47 CFR 101.147(b)(1) (enhanced display)                                                            page 82 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                       47 CFR 101.147(b)(2)
Fixed Microwave Services

                                    Remote transmit                                  Master transmit
                 928.1875                                                                                     952.1875
                 928.2125                                                                                     952.2125
                 928.2375                                                                                     952.2375
                 928.2625                                                                                     952.2625
                 928.2875                                                                                     952.2875
                 928.3125                                                                                     952.3125
                 928.3375                                                                                     952.3375

                                                 Unpaired Frequencies (MHz)

                [25 kHz bandwidth]

                 956.2625                             956.3375                       956.4125
                 956.2875                             956.3625                       956.4375
                 956.3125                             956.3875

           (2) Frequencies listed in this paragraph are designated for private internal use and are subject to site-
               based licensing.

                                               Table 3—Paired Frequencies (MHz)

                [12.5 kHz bandwidth]

                                    Remote transmit                                  Master transmit
                 928.35625                                                                                   952.35625
                 928.36875                                                                                   928.36875
                 928.38125                                                                                   952.38125
                 928.39375                                                                                   952.39375
                 928.40625                                                                                   952.40625
                 928.41875                                                                                   952.41875
                 928.43125                                                                                   952.43125
                 928.44375                                                                                   952.44375
                 928.45625                                                                                   952.45625
                 928.46875                                                                                   952.46875
                 928.48125                                                                                   952.48125
                 928.49375                                                                                   952.49375
                 928.50625                                                                                   952.50625
                 928.51875                                                                                   952.51875
                 928.53125                                                                                   952.53125
                 928.54375                                                                                   952.54375
                 928.55625                                                                                   952.55625

47 CFR 101.147(b)(2) (enhanced display)                                                                     page 83 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                             47 CFR 101.147(b)(2)
Fixed Microwave Services

                                    Remote transmit                        Master transmit
                 928.56875                                                                         952.56875
                 928.58125                                                                         952.58125
                 928.59375                                                                         952.59375
                 928.60625                                                                         952.60625
                 928.61875                                                                         952.61875
                 928.63125                                                                         952.63125
                 928.64375                                                                         952.64375
                 928.65625                                                                         952.65625
                 928.66875                                                                         952.66875
                 928.68125                                                                         952.68125
                 928.69375                                                                         952.69375
                 928.70625                                                                         952.70625
                 928.71875                                                                         952.71875
                 928.73125                                                                         952.73125
                 928.74375                                                                         952.74375
                 928.75625                                                                         952.75625
                 928.76875                                                                         952.76875
                 928.78125                                                                         952.78125
                 928.79375                                                                         952.79375
                 928.80625                                                                         952.80625
                 928.81875                                                                         952.81875
                 928.83125                                                                         952.83125
                 928.84375                                                                         952.84375

                                               Table 4—Paired Frequencies (MHz)

                [25 kHz bandwidth]

                                    Remote transmit                        Master transmit
                 928.3625                                                                           952.3625
                 928.3875                                                                           952.3875
                 928.4125                                                                           952.4125
                 928.4375                                                                           952.4375
                 928.4625                                                                           952.4625
                 928.4875                                                                           952.4875
                 928.5125                                                                           952.5125
                 928.5375                                                                           952.5375
                 928.5625                                                                           952.5625
                 928.5875                                                                           952.5875
                 928.6125                                                                           952.6125

47 CFR 101.147(b)(2) (enhanced display)                                                           page 84 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                       47 CFR 101.147(b)(3)
Fixed Microwave Services

                                    Remote transmit                                  Master transmit
                 928.6375                                                                                     952.6375
                 928.6625                                                                                     952.6625
                 928.6875                                                                                     952.6875
                 928.7125                                                                                     952.7125
                 928.7375                                                                                     952.7375
                 928.7625                                                                                     952.7625
                 928.7875                                                                                     952.7875
                 928.8125                                                                                     952.8125
                 928.8375                                                                                     952.8375

           (3) Frequencies listed in this paragraph are not restricted to private internal use and are licensed by
               geographic area. Incumbent facilities must be protected.

                                               Table 5—Paired Frequencies (MHz)

                [12.5 kHz bandwidth]

                                    Remote transmit                                  Master transmit
                 928.85625                                                                                   959.85625
                 928.86875                                                                                   959.86875
                 928.88125                                                                                   959.88125
                 928.89375                                                                                   959.89375
                 928.90625                                                                                   959.90625
                 928.91875                                                                                   959.91875
                 928.93125                                                                                   959.93125
                 928.94375                                                                                   959.94375
                 928.95625                                                                                   959.95625
                 928.96875                                                                                   959.96875
                 928.98125                                                                                   959.98125
                 928.99375                                                                                   959.99375

                                               Table 6—Paired Frequencies (MHz)

                [25 kHz bandwidth]

                                    Remote transmit                                  Master transmit
                 928.8625                                                                                     959.8625
                 928.8875                                                                                     959.8875
                 928.9125                                                                                     959.9125
                 928.9375                                                                                     959.9375
                 928.9625                                                                                     959.9625

47 CFR 101.147(b)(3) (enhanced display)                                                                     page 85 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                              47 CFR 101.147(b)(4)
Fixed Microwave Services

                                    Remote transmit                                         Master transmit
                 928.9875                                                                                            959.9875

           (4) Frequencies listed in this paragraph are licensed by either economic area or on a site-by-site basis.

                                                   Table 7—Paired Frequencies

                                       Remote transmit                                         Master transmit
                                                         Licensed by Economic Area
                 (12.5 kHz bandwidth):
                   932.00625                                                                                        941.00625
                   932.01875                                                                                        941.01875
                   932.03125                                                                                        941.03125
                   932.04375                                                                                        941.04375
                   932.05625                                                                                        941.05625
                   932.06875                                                                                        941.06875
                   932.08125                                                                                        941.08125
                   932.09375                                                                                        941.09375
                 (50 kHz bandwidth):
                   932.12500                                                                                        941.12500
                 (12.5 kHz bandwidth):
                   932.15625                                                                                        941.15625
                   932.16875                                                                                        941.16875
                   932.18125                                                                                        941.18125
                   932.19375                                                                                        941.19375
                   932.20625                                                                                        941.20625
                   932.21875                                                                                        941.21875
                   932.23125                                                                                        941.23125
                   932.24375                                                                                        941.24375
                 Reserved for public safety and private internal use. Licensed on site-by-site basis.
                 (12.5 kHz bandwidth):
                   932.25625                                                                                        941.25625
                   932.26875                                                                                        941.26875
                   932.28125                                                                                        941.28125
                   932.29375                                                                                        941.29375
                   932.30625                                                                                        941.30625
                   932.31875                                                                                        941.31875
                   932.33125                                                                                        941.33125
                   932.34375                                                                                        941.34375
                   932.35625                                                                                        941.35625
                   932.36875                                                                                        941.36875

47 CFR 101.147(b)(4) (enhanced display)                                                                            page 86 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                          47 CFR 101.147(b)(5)
Fixed Microwave Services

                                       Remote transmit                                      Master transmit
                   932.38125                                                                                    941.38125
                   932.39375                                                                                    941.39375
                   932.40625                                                                                    941.40625
                   932.41875                                                                                    941.41875
                   932.43125                                                                                    941.43125
                 Reserved for Public Safety and Federal Government Use. Licensed on site-by-site basis.
                 (12.5 kHz bandwidth):
                   932.44375                                                                                    941.44375
                   932.45625                                                                                    941.45625
                   932.46875                                                                                    941.46875
                   932.48125                                                                                    941.48125
                   932.49375                                                                                    941.49375

           (5) Equivalent power and antenna heights for multiple address master stations:

                                                                             Maximum effective radiated power
                          Antenna height (AAT) in meters
                                                                               Watts                          dBm
                 Above 305                                                                   200                         53
                 Above 274 to 305                                                            250                         54
                 Above 244 to 274                                                            315                         55
                 Above 213 to 244                                                            400                         56
                 Above 182 to 213                                                            500                         57
                 Above 152.5 to 182                                                          630                         58
                 152.5 and below                                                           1,000                         60

                For mobile operations the maximum ERP is 25 watts (44 dBm).

           (6) Fixed point-to-point frequencies.

                                                  Table 8—Paired Frequencies

                [All frequencies may be used by Common Carrier Fixed Point-to-Point and Private Operational Fixed
                Point-to-Point Microwave Service licensees; 25 kHz bandwidth]

                               Transmit (receive) (MHz)                            Receive (transmit) (MHz)
                 932.5125                                                                                           941.5125
                 932.5375                                                                                           941.5375
                 932.5625                                                                                           941.5625
                 932.5875                                                                                           941.5875
                 932.6125                                                                                           941.6125
                 932.6375                                                                                           941.6375
                 932.6625                                                                                           941.6625

47 CFR 101.147(b)(6) (enhanced display)                                                                        page 87 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                 47 CFR 101.147(b)(6)
Fixed Microwave Services

                               Transmit (receive) (MHz)                      Receive (transmit) (MHz)
                 934.8375                                                                                 943.8375
                 934.8625                                                                                 943.8625
                 934.8875                                                                                 943.8875
                 934.9125                                                                                 943.9125
                 934.9375                                                                                 943.9375
                 934.9625                                                                                 943.9625
                 934.9875                                                                                 943.9875

                                                 Table 9—Paired Frequencies

                [Frequencies may be used only by Private Operational Fixed Point-to-Point Microwave Service
                licensees, unless otherwise noted; 50 kHz bandwidth]

                               Transmit (receive) (MHz)                      Receive (transmit) (MHz)
                 932.701                                                                                   1
                                                                                                               941.70
                 932.751                                                                                   1   941.75
                 934.801                                                                                   1
                                                                                                               943.80
                 956.65                                                                                        953.05
                 956.75                                                                                        953.15
                 956.85                                                                                        953.25
                 956.95                                                                                        953.35
                 957.05                                                                                        953.45
                 957.25                                                                                        953.65
                 957.35                                                                                        953.75
                 957.45                                                                                        953.85
                 957.65                                                                                        954.05
                 957.75                                                                                        954.15
                 957.85                                                                                        954.25
                 958.05                                                                                        954.45
                 958.15                                                                                        954.55
                 958.25                                                                                        954.65
                 958.45                                                                                        954.85
                 958.55                                                                                        954.95
                 958.65                                                                                        955.05
                 958.85                                                                                        955.25
                 958.95                                                                                        955.35
                 959.05                                                                                        955.45
                 959.25                                                                                        955.65
                 959.35                                                                                        955.75
                 959.45                                                                                        955.85
                 959.55                                                                                        955.95

47 CFR 101.147(b)(6) (enhanced display)                                                                 page 88 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                 47 CFR 101.147(b)(6)
Fixed Microwave Services

                                Transmit (receive) (MHz)                     Receive (transmit) (MHz)
                 959.65                                                                                       956.05

                1 These frequencies also may be used by Common Carrier Fixed Point-to-Point Microwave
                licensees.

                                                  Table 10—Paired Frequencies

                [Frequencies may be used only by Private Operational Fixed Point-to-Point Microwave licensees,
                unless otherwise noted; 100 kHz bandwidth]

                                Transmit (receive) (MHz)                     Receive (transmit) (MHz)
                            1                                                                           1
                 932.8250                                                                                   941.8250
                 932.92501                                                                              1
                                                                                                            941.9250
                 933.02501                                                                              1
                                                                                                            942.0250
                 934.52501                                                                              1   943.5250
                 934.62501                                                                              1
                                                                                                            943.6250
                 934.72501                                                                              1
                                                                                                            943.7250
                 956.6                                                                                         953.0
                 956.7                                                                                         953.1
                 956.8                                                                                         953.2
                 956.9                                                                                         953.3
                 957.0                                                                                         953.4
                 957.1                                                                                         953.5
                 957.2                                                                                         953.6
                 957.3                                                                                         953.7
                 957.4                                                                                         953.8
                 957.5                                                                                         953.9
                 957.6                                                                                         954.0
                 957.7                                                                                         954.1
                 957.8                                                                                         954.2
                 957.9                                                                                         954.3
                 958.0                                                                                         954.4
                 958.1                                                                                         954.5
                 958.2                                                                                         954.6
                 958.3                                                                                         954.7
                 958.4                                                                                         954.8
                 958.5                                                                                         954.9
                 958.6                                                                                         955.0
                 958.7                                                                                         955.1
                 958.8                                                                                         955.2
                 958.9                                                                                         955.3

47 CFR 101.147(b)(6) (enhanced display)                                                                 page 89 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                        47 CFR 101.147(c)
Fixed Microwave Services

                                 Transmit (receive) (MHz)                        Receive (transmit) (MHz)
                   959.0                                                                                           955.4
                   959.1                                                                                           955.5
                   959.2                                                                                           955.6
                   959.3                                                                                           955.7
                   959.4                                                                                           955.8
                   959.5                                                                                           955.9
                   959.6                                                                                           956.0
                   959.7                                                                                           956.1

                1 These frequencies also may be used by Common Carrier Fixed Point-to-Point Microwave
                licensees.

                                                   Table 11—Paired Frequencies

                [Frequencies may be used only by Private Operational Fixed Point-to-Point Microwave licensees,
                unless otherwise noted; (200 kHz bandwidth)]

                                 Transmit (receive) (MHz)                        Receive (transmit) (MHz)
                   933.17501                                                                                1
                                                                                                                942.1750
                   933.37501                                                                                1   942.3750
                   933.57501                                                                                1
                                                                                                                942.5750
                   933.77501                                                                                1   942.7750
                   933.97501                                                                                1
                                                                                                                942.9750
                   934.17501                                                                                1   943.1750
                   934.37501                                                                                1
                                                                                                                943.3750
                   957.15                                                                                         953.55
                   957.55                                                                                         953.95
                   957.95                                                                                         954.35
                   958.35                                                                                         954.75
                   958.75                                                                                         955.15
                   959.15                                                                                         955.55

                1 These frequencies also may be used by Common Carrier Fixed Point-to-Point Microwave
                licensees.

     (c) 1850–1990 MHz. (1) 10 MHz maximum bandwidth.

                                                       Paired Frequencies

                            Transmit (receive) (MHz)                        Receive (transmit) (MHz)
            1855                                                                                             1935

47 CFR 101.147(c) (enhanced display)                                                                        page 90 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                     47 CFR 101.147(c)(2)
Fixed Microwave Services

                          Transmit (receive) (MHz)                        Receive (transmit) (MHz)
            1865                                                                                             1945
            1875                                                                                             1955
            1885                                                                                             1965
            1895                                                                                             1975
            1905                                                                                             1985

                                                 Unpaired Frequencies

            19151
            19251

           1   Available for systems employing one-way transmission.

           (2) 5 MHz maximum bandwidth.

                                                          Paired Frequencies

                               Transmit (receive) (MHz)                        Receive (transmit) (MHz)
                   1860                                                                                              1940
                   1870                                                                                              1950
                   1880                                                                                              1960
                   1890                                                                                              1970
                   1900                                                                                              1980

     (d) 2130–2150 MHz; 2180–2200 MHz. 800 kHz maximum bandwidth, unless noted.

                                                     Paired Frequencies

            2130–2150                                                                                2180–2200

                          Transmit (receive) (MHz)                        Receive (transmit) (MHz)
            2130.8                                                                                          2180.8
            2131.6                                                                                      1   2181.6
            2132.4                                                                                          2182.4
                                                                                                        1
            2133.2                                                                                          2183.2
            2134.0                                                                                          2184.0
            2134.8                                                                                      1   2184.8
            2135.6                                                                                          2185.6
                                                                                                        1
            2136.4                                                                                          2186.4
            2137.2                                                                                          2187.2
                                                                                                        1
            2138.0                                                                                          2188.0

47 CFR 101.147(d) (enhanced display)                                                                        page 91 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                        47 CFR 101.147(e)
Fixed Microwave Services

                         Transmit (receive) (MHz)                          Receive (transmit) (MHz)
                                                                                                        1
            2139.6                                                                                          2189.6
            2138.8                                                                                          2188.8
            2140.4                                                                                          2190.4
            2141.2                                                                                      1   2191.2
            2142.0                                                                                          2192.0
                                                                                                        1
            2142.8                                                                                          2192.8
            2143.6                                                                                          2193.6
            2144.4                                                                                      1   2194.4
            2145.2                                                                                          2195.2
                                                                                                        1
            2146.0                                                                                          2196.0
            2146.8                                                                                          2196.8
                                                                                                        1
            2147.6                                                                                          2197.6
            2148.4                                                                                          2198.4
            2149.2                                                                                          2199.2

           1Consideration will be given on a case-by-case basis to assigning these frequency pairs to
           systems employing 1600 KHz bandwidth transmissions.

     (e) [Reserved]

     (f) 2450–2500 MHz.

           (1) This band is shared with other communications services and is not subject to protection from
               interference from industrial, scientific, and medical devices operating on 2450 MHz.

           (2) Stations licensed in this band under this part prior to March 1, 1996, are grandfathered and may
               continue their authorized operations. Stations licensed in the 2483.5–2500 MHz portion of the band
               as of July 25, 1985, and licensees whose initial applications were filed on or before July 25, 1985, are
               grandfathered, and may continue operations, subject only to license renewal, on a co-primary basis
               with with the mobile-satellite and radiodetermination-satellite services, and in the segment
               2495–2500 MHz, their operations are also on a co-primary basis with part 27 fixed and mobile
               except aeronautical mobile service operations.

           (3) 625 KHz bandwidth channels. The normal bandwidth authorized will be 625 KHz. Upon adequate
               justification, additional contiguous channels may be authorized to provide up to a 2500 KHz
               bandwidth.

                                                          Paired Frequencies

                               Transmit (receive) (MHz)                         Receive (transmit) (MHz)
                 2450.3125                                                                                   2467.5625
                 2450.9375                                                                                   2468.1875
                 2451.5625                                                                                   2468.8125
                 2452.1875                                                                                   2469.4375
                 2452.8125                                                                                   2470.0625

47 CFR 101.147(f)(3) (enhanced display)                                                                     page 92 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                               47 CFR 101.147(g)
Fixed Microwave Services

                               Transmit (receive) (MHz)                  Receive (transmit) (MHz)
                 2453.4375                                                                          2470.6875
                 2454.0625                                                                          2471.3125
                 2454.6875                                                                          2471.9375
                 2455.3125                                                                          2472.5625
                 2455.9375                                                                          2473.1875
                 2456.5625                                                                          2473.8125
                 2457.1875                                                                          2474.4375
                 2457.8125                                                                          2475.0625
                 2458.4375                                                                          2475.6875
                 2459.0625                                                                          2476.3125
                 2459.6875                                                                          2476.9375
                 2460.3125                                                                          2477.5625
                 2460.9375                                                                          2478.1875
                 2461.5625                                                                          2478.8125
                 2462.1875                                                                          2479.4375
                 2462.8125                                                                          2480.0625
                 2463.4375                                                                          2480.6875
                 2464.0625                                                                          2481.3125
                 2464.6875                                                                          2481.9375
                 2465.3125                                                                          2482.5625
                 2465.9375                                                                          2483.1875

     (g) [Reserved]

     (h) 3,700 to 4,200 MHz outside the contiguous United States. 20 MHz maximum authorized bandwidth.

47 CFR 101.147(h) (enhanced display)                                                                page 93 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                               47 CFR 101.147(i)
Fixed Microwave Services

            20 MHz bandwidth channels:

                           Transmit (receive) (MHz)                Receive (transmit) (MHz)
             3710                                                                                      3750
             3730                                                                                      3770
             3790                                                                                      3830
             3810                                                                                      3850
             3870                                                                                      3910
             3890                                                                                      3930
             3950                                                                                      3990
             3970                                                                                      4010
             4030                                                                                      4070
             4050                                                                                      4090
             4110                                                                                      4150
             4130                                                                                      4170
             N/A                                                                                   1   4190

            1   This frequency may be assigned for unpaired use.

      (i)   5,925 to 6,425 MHz. 60 MHz authorized bandwidth.

            (1) 400 kHz bandwidth channels:

                                Transmit (receive) (MHz)                Receive (transmit) (MHz)
                    5925.225                                                                           6177.100
                    5925.625                                                                           6177.500
                    5926.050                                                                           6177.925
                    5926.450                                                                           6178.325
                    5926.875                                                                           6178.750
                    5927.275                                                                           6179.150
                    5927.725                                                                           6179.600
                    5928.125                                                                           6180.000
                    5928.550                                                                           6180.425
                    5928.950                                                                           6180.825
                    5929.375                                                                           6181.250
                    5929.775                                                                           6181.650
                    6168.350                                                                           6420.225
                    6168.750                                                                           6420.625
                    6169.175                                                                           6421.050
                    6169.575                                                                           6421.450
                    6170.000                                                                           6421.875
                    6170.400                                                                           6422.275
                    6170.850                                                                           6422.725

47 CFR 101.147(i)(1) (enhanced display)                                                            page 94 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(i)(2)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 6171.250                                                              6423.125
                 6171.675                                                              6423.550
                 6172.075                                                              6423.950
                 6172.500                                                              6424.375
                 6172.900                                                              6424.775

           (2) 800 kHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 5925.425                                                              6177.300
                 5926.250                                                              6178.125
                 5927.075                                                              6178.950
                 5927.925                                                              6179.800
                 5928.750                                                              6180.625
                 5929.575                                                              6181.450
                 6168.550                                                              6420.425
                 6169.375                                                              6421.250
                 6170.200                                                              6422.075
                 6171.050                                                              6422.925
                 6171.875                                                              6423.750
                 6172.700                                                              6424.575

           (3) 1.25 MHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 5925.625                                                              6177.500
                 5926.875                                                              6178.750
                 5928.125                                                              6180.000
                 5929.375                                                              6181.250
                 6108.893                                                              6360.933
                 6110.128                                                              6362.168
                 6111.364                                                              6363.404
                 6112.599                                                              6364.639
                 6113.834                                                              6365.874
                 6115.070                                                              6367.110
                 6116.305                                                              6368.345
                 6117.541                                                              6369.581
                 6118.776                                                              6370.816
                 6120.011                                                              6372.051
                 6121.247                                                              6373.287
                 6122.482                                                              6374.522

47 CFR 101.147(i)(3) (enhanced display)                                              page 95 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(i)(3)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 6123.718                                                              6375.758
                 6124.953                                                              6376.993
                 6126.189                                                              6378.229
                 6127.424                                                              6379.464
                 6128.659                                                              6380.699
                 6129.895                                                              6381.935
                 6131.130                                                              6383.170
                 6132.366                                                              6384.406
                 6133.601                                                              6385.641
                 6134.836                                                              6386.876
                 6136.072                                                              6388.112
                 6137.307                                                              6389.347
                 6138.543                                                              6390.583
                 6139.778                                                              6391.818
                 6141.014                                                              6393.054
                 6142.249                                                              6394.289
                 6143.484                                                              6395.524
                 6144.720                                                              6396.760
                 6145.955                                                              6397.995
                 6147.191                                                              6399.231
                 6148.426                                                              6400.466
                 6149.661                                                              6401.701
                 6150.897                                                              6402.937
                 6152.132                                                              6404.172
                 6153.368                                                              6405.408
                 6154.603                                                              6406.643
                 6155.839                                                              6407.879
                 6157.074                                                              6409.114
                 6158.309                                                              6410.349
                 6159.545                                                              6411.585
                 6160.780                                                              6412.820
                 6162.016                                                              6414.056
                 6163.251                                                              6415.291
                 6164.486                                                              6416.526
                 6165.722                                                              6417.762
                 6166.957                                                              6418.997
                 6168.750                                                              6420.625
                 6170.000                                                              6421.875
                 6171.250                                                              6423.125
                 6172.500                                                              6424.375

47 CFR 101.147(i)(3) (enhanced display)                                              page 96 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                              47 CFR 101.147(i)(4)
Fixed Microwave Services

                                Transmit (receive) (MHz)                  Receive (transmit) (MHz)
                            1
                 6173.750                                                                                   N/A
                            1
                 6175.000                                                                                   N/A
                            1
                 6176.250                                                                                   N/A

                1   These frequencies may be assigned for unpaired use.

           (4) 2.5 MHz bandwidth channels:

                                Transmit (receive) (MHz)                  Receive (transmit) (MHz)
                 5926.250                                                                              6178.125
                 5928.750                                                                              6180.625
                 6109.510                                                                              6361.550
                 6111.981                                                                              6364.021
                 6114.452                                                                              6366.492
                 6116.923                                                                              6368.963
                 6119.394                                                                              6371.434
                 6121.865                                                                              6373.905
                 6124.335                                                                              6376.375
                 6126.806                                                                              6378.846
                 6129.277                                                                              6381.317
                 6131.748                                                                              6383.788
                 6134.219                                                                              6386.259
                 6136.690                                                                              6388.730
                 6139.160                                                                              6391.200
                 6141.631                                                                              6393.671
                 6144.102                                                                              6396.142
                 6146.573                                                                              6398.613
                 6149.044                                                                              6401.084
                 6151.515                                                                              6403.555
                 6153.985                                                                              6406.025
                 6156.456                                                                              6408.496
                 6158.927                                                                              6410.967
                 6161.398                                                                              6413.438
                 6163.869                                                                              6415.909
                 6166.340                                                                              6418.380
                 6169.375                                                                              6421.250
                 6171.875                                                                              6423.750
                 6175.6251                                                                                  N/A

                1   This frequency may be assigned for unpaired use.

47 CFR 101.147(i)(4) (enhanced display)                                                              page 97 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                           47 CFR 101.147(i)(5)
Fixed Microwave Services

           (5) 3.75 MHz bandwidth channels:

                               Transmit (receive) (MHz)                Receive (transmit) (MHz)
                 6111.364                                                                           6363.404
                 6116.305                                                                           6368.345
                 6121.247                                                                           6373.287
                 6126.189                                                                           6378.229
                 6131.130                                                                           6383.170
                 6136.072                                                                           6388.112
                 6141.014                                                                           6393.054
                 6145.955                                                                           6397.995
                 6150.897                                                                           6402.937
                 6155.839                                                                           6407.879
                 6160.780                                                                           6412.820
                 6165.722                                                                           6417.762
                 6175.0001                                                                               N/A

                1   This frequency may be assigned for unpaired use.

           (6) 5 MHz bandwidth channels:

                               Transmit (receive) (MHz)                Receive (transmit) (MHz)
                 6110.75                                                                             6362.79
                 6115.69                                                                             6367.73
                 6120.63                                                                             6372.67
                 6125.57                                                                             6377.61
                 6130.51                                                                             6382.55
                 6135.45                                                                             6387.49
                 6140.40                                                                             6392.44
                 6145.34                                                                             6397.38
                 6150.28                                                                             6402.32
                 6155.22                                                                             6407.26
                 6160.16                                                                             6412.20
                 6165.10                                                                             6417.14

           (7) 10 MHz bandwidth channels:

                               Transmit (receive) (MHz)                Receive (transmit) (MHz)
                 5935.32                                                                             6187.36
                 5945.20                                                                             6197.24
                 5955.08                                                                             6207.12
                 5964.97                                                                             6217.01

47 CFR 101.147(i)(7) (enhanced display)                                                           page 98 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                47 CFR 101.147(i)(8)
Fixed Microwave Services

                               Transmit (receive) (MHz)                     Receive (transmit) (MHz)
                 5974.85                                                                                     6226.89
                 5984.73                                                                                     6236.77
                 5994.62                                                                                     6246.66
                 6004.50                                                                                     6256.54
                 6014.38                                                                                     6266.42
                 6024.27                                                                                     6276.31
                 6034.15                                                                                     6286.19
                 6044.03                                                                                     6296.07
                 6053.92                                                                                     6305.96
                 6063.80                                                                                     6315.84
                 6073.68                                                                                     6325.72
                 6083.57                                                                                     6335.61
                 6093.45                                                                                     6345.49
                 6103.33                                                                                     6355.37
                 6113.221                                                                                1
                                                                                                             6365.26
                 6123.101                                                                                1   6375.14
                 6132.981                                                                                1
                                                                                                             6385.02
                 6142.871                                                                                1   6394.91
                 6152.751                                                                                1
                                                                                                             6404.79
                 6162.631                                                                                1   6414.67

                1Alternate channels. These channels are set aside for narrow bandwidth systems and should be
                used only if all other channels are blocked.

           (8) 30 MHz bandwidth channels:

                               Transmit (receive) (MHz)                     Receive (transmit) (MHz)
                 5945.20                                                                                     6197.24
                 5974.85                                                                                     6226.89
                 6004.50                                                                                     6256.54
                 6034.15                                                                                     6286.19
                 6063.80                                                                                     6315.84
                 6093.45                                                                                     6345.49
                           1                                                                             1
                 6123.10                                                                                     6375.14
                 6152.751                                                                                1
                                                                                                             6404.79

                1Alternate channels. These channels are set aside for narrow bandwidth systems and should be
                used only if all other channels are blocked.

47 CFR 101.147(i)(8) (enhanced display)                                                                page 99 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                      47 CFR 101.147(i)(9)
Fixed Microwave Services

            (9) 60 MHz bandwidth channels:1

                                      Transmit                                           Receive
                                      (receive)                                         (transmit)
                                        (MHz)                                             (MHz)
                                      5960.025                                          6212.065
                                      6019.325                                          6271.365
                                      6078.625                                          6330.665
                                      6137.925                                          6389.965

      (j)   6,425 to 6,525 MHz: Mobile. Paired and un-paired operations permitted. Use of this spectrum for direct
            delivery of video programs to the general public or multi-channel cable distribution is not permitted. This
            band is co-equally shared with mobile stations licensed pursuant to parts 74 and 78 of the Commission's
            Rules. Stations not intended to be operated while in motion will be licensed under the provision of §
            101.31. The following channel plans apply.

            (1) 1 MHz maximum authorized bandwidth channels:

                             Transmit (or receive) (MHz)                        Receive (or transmit) (MHz)
                  6425.5                                                                                         6475.5
                  6450.5                                                                                         6500.5

            (2) 8 MHz maximum authorized bandwidth channels:

                             Transmit (or receive) (MHz)                        Receive (or transmit) (MHz)
                  6430.0                                                                                         6480.0
                  6438.0                                                                                         6488.0
                  6446.0                                                                                         6496.0
                  6455.0                                                                                         6505.0
                  6463.0                                                                                         6513.0
                  6471.0                                                                                         6521.0

            (3) 25 MHz maximum authorized bandwidth channels:

                             Transmit (or receive) (MHz)                        Receive (or transmit) (MHz)
                  6437.5                                                                                         6487.5
                  6462.5                                                                                         6512.5

     (k) 6,525 to 6,875 MHz. 10 MHz authorized bandwidth.

            (1) 400 kHz bandwidth channels:

                               Transmit (receive) (MHz)                          Receive (transmit) (MHz)
                  6525.225                                                                                     6870.225
                  6525.625                                                                                     6870.625

47 CFR 101.147(k)(1) (enhanced display)                                                                     page 100 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(k)(2)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 6526.050                                                                 6871.050
                 6526.450                                                                 6871.450
                 6526.875                                                                 6871.875
                 6527.275                                                                 6872.275
                 6527.725                                                                 6872.725
                 6528.125                                                                 6873.125
                 6528.550                                                                 6873.550
                 6528.950                                                                 6873.950
                 6529.375                                                                 6874.375
                 6529.775                                                                 6874.775

           (2) 800 kHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 6525.425                                                                 6870.425
                 6526.250                                                                 6871.250
                 6527.075                                                                 6872.075
                 6527.925                                                                 6872.925
                 6528.750                                                                 6873.750
                 6529.575                                                                 6874.575

           (3) 1.25 MHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 6525.625                                                                 6870.625
                 6526.875                                                                 6871.875
                 6528.125                                                                 6873.125
                 6529.375                                                                 6874.375
                 6540.6251                                                            1
                                                                                          6718.125
                 6541.8751                                                            1
                                                                                          6719.375
                 6543.1251                                                            1
                                                                                          6713.125
                 6544.3751                                                            1
                                                                                          6714.375
                 6545.6251                                                            1   6715.625
                 6546.8751                                                            1
                                                                                          6716.875
                 6548.125                                                                 6728.125
                 6549.375                                                                 6729.375
                 6550.625                                                                 6730.625
                 6551.875                                                                 6731.875
                 6553.1251                                                            1   6723.125
                 6554.3751                                                            1
                                                                                          6724.375
                 6555.6251                                                            1   6725.625

47 CFR 101.147(k)(3) (enhanced display)                                              page 101 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                               47 CFR 101.147(k)(3)
Fixed Microwave Services

                                Transmit (receive) (MHz)   Receive (transmit) (MHz)
                            1                                                          1
                 6556.875                                                                  6726.875
                 6558.125                                                                  6738.125
                 6559.375                                                                  6739.375
                 6560.625                                                                  6740.625
                 6561.875                                                                  6741.875
                 6563.125                                                                  6733.125
                 6564.375                                                                  6734.375
                 6565.625                                                                  6735.625
                 6566.875                                                                  6736.875
                            1                                                          1
                 6568.125                                                                  6720.625
                            1                                                          1
                 6569.375                                                                  6721.875
                 6580.6251                                                             1
                                                                                           6868.125
                 6581.8751                                                             1   6869.375
                 6583.125                                                                  6743.125
                 6584.375                                                                  6744.375
                 6585.625                                                                  6745.625
                 6586.875                                                                  6746.875
                 6588.125                                                                  6748.125
                 6589.375                                                                  6749.375
                 6590.625                                                                  6750.625
                 6591.875                                                                  6751.875
                 6593.125                                                                  6753.125
                 6594.375                                                                  6754.375
                 6595.625                                                                  6755.625
                 6596.875                                                                  6756.875
                 6598.125                                                                  6758.125
                 6599.375                                                                  6759.375
                 6600.625                                                                  6760.625
                 6601.875                                                                  6761.875
                 6603.125                                                                  6763.125
                 6604.375                                                                  6764.375
                 6605.625                                                                  6765.625
                 6606.875                                                                  6766.875
                 6608.125                                                                  6768.125
                 6609.375                                                                  6769.375
                 6610.625                                                                  6770.625
                 6611.875                                                                  6771.875
                 6613.125                                                                  6773.125
                 6614.375                                                                  6774.375
                 6615.625                                                                  6775.625

47 CFR 101.147(k)(3) (enhanced display)                                               page 102 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(k)(3)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 6616.875                                                               6776.875
                 6618.125                                                               6778.125
                 6619.375                                                               6779.375
                 6620.625                                                               6780.625
                 6621.875                                                               6781.875
                 6623.125                                                               6783.125
                 6624.375                                                               6784.375
                 6625.625                                                               6785.625
                 6626.875                                                               6786.875
                 6628.125                                                               6788.125
                 6629.375                                                               6789.375
                 6630.625                                                               6790.625
                 6631.875                                                               6791.875
                 6633.125                                                               6793.125
                 6634.375                                                               6794.375
                 6635.625                                                               6795.625
                 6636.875                                                               6796.875
                 6638.125                                                               6798.125
                 6639.375                                                               6799.375
                 6640.625                                                               6800.625
                 6641.875                                                               6801.875
                 6643.125                                                               6803.125
                 6644.375                                                               6804.375
                 6645.625                                                               6805.625
                 6646.875                                                               6806.875
                 6648.125                                                               6808.125
                 6649.375                                                               6809.375
                 6650.625                                                               6810.625
                 6651.875                                                               6811.875
                 6653.125                                                               6813.125
                 6654.375                                                               6814.375
                 6655.625                                                               6815.625
                 6656.875                                                               6816.875
                 6658.125                                                               6818.125
                 6659.375                                                               6819.375
                 6660.625                                                               6820.625
                 6661.875                                                               6821.875
                 6663.125                                                               6823.125
                 6664.375                                                               6824.375
                 6665.625                                                               6825.625

47 CFR 101.147(k)(3) (enhanced display)                                              page 103 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                              47 CFR 101.147(k)(3)
Fixed Microwave Services

                               Transmit (receive) (MHz)                   Receive (transmit) (MHz)
                 6666.875                                                                                 6826.875
                 6668.125                                                                                 6828.125
                 6669.375                                                                                 6829.375
                 6670.625                                                                                 6830.625
                 6671.875                                                                                 6831.875
                 6673.125                                                                                 6833.125
                 6674.375                                                                                 6834.375
                 6675.625                                                                                 6835.625
                 6676.875                                                                                 6836.875
                 6678.125                                                                                 6838.125
                 6679.375                                                                                 6839.375
                 6680.625                                                                                 6840.625
                 6681.875                                                                                 6841.875
                 6683.125                                                                                 6843.125
                 6684.375                                                                                 6844.375
                 6685.625                                                                                 6845.625
                 6686.875                                                                                 6846.875
                 6688.125                                                                                 6848.125
                 6689.375                                                                                 6849.375
                 6690.625                                                                                 6850.625
                 6691.875                                                                                 6851.875
                 6693.125                                                                                 6853.125
                 6694.375                                                                                 6854.375
                 6695.625                                                                                 6855.625
                 6696.875                                                                                 6856.875
                 6698.125                                                                                 6858.125
                 6699.375                                                                                 6859.375
                 6700.625                                                                                 6860.625
                 6701.875                                                                                 6861.875
                 6703.125                                                                                 6863.125
                 6704.375                                                                                 6864.375
                 6705.625                                                                                 6865.625
                 6706.875                                                                                 6866.875
                 6708.1251                                                                            1
                                                                                                          6710.625
                 6709.3751                                                                            1
                                                                                                          6711.875

                1   These frequencies may be assigned for unpaired use.

47 CFR 101.147(k)(3) (enhanced display)                                                              page 104 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(k)(4)
Fixed Microwave Services

           (4) 2.5 MHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 6526.25                                                                   6871.25
                 6528.75                                                                   6873.75
                 6541.251                                                              1   6718.75
                 6543.751                                                              1
                                                                                           6713.75
                           1                                                           1
                 6546.25                                                                   6716.25
                 6548.75                                                                   6728.75
                 6551.25                                                                   6731.25
                           1                                                           1
                 6553.75                                                                   6723.75
                           1                                                           1
                 6556.25                                                                   6726.25
                 6558.75                                                                   6738.75
                 6561.25                                                                   6741.25
                 6563.75                                                                   6733.75
                 6566.25                                                                   6736.25
                 6568.751                                                              1
                                                                                           6721.25
                 6581.251                                                              1   6868.75
                 6583.75                                                                   6743.75
                 6586.25                                                                   6746.25
                 6588.75                                                                   6748.75
                 6591.25                                                                   6751.25
                 6593.75                                                                   6753.75
                 6596.25                                                                   6756.25
                 6598.75                                                                   6758.75
                 6601.25                                                                   6761.25
                 6603.75                                                                   6763.75
                 6606.25                                                                   6766.25
                 6608.75                                                                   6768.75
                 6611.25                                                                   6771.25
                 6613.75                                                                   6773.75
                 6616.25                                                                   6776.25
                 6618.75                                                                   6778.75
                 6621.25                                                                   6781.25
                 6623.75                                                                   6783.75
                 6626.25                                                                   6786.25
                 6628.75                                                                   6788.75
                 6631.25                                                                   6791.25
                 6633.75                                                                   6793.75
                 6636.25                                                                   6796.25
                 6638.75                                                                   6798.75

47 CFR 101.147(k)(4) (enhanced display)                                              page 105 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                              47 CFR 101.147(k)(5)
Fixed Microwave Services

                               Transmit (receive) (MHz)                   Receive (transmit) (MHz)
                 6641.25                                                                                    6801.25
                 6643.75                                                                                    6803.75
                 6646.25                                                                                    6806.25
                 6648.75                                                                                    6808.75
                 6651.25                                                                                    6811.25
                 6653.75                                                                                    6813.75
                 6656.25                                                                                    6816.25
                 6658.75                                                                                    6818.75
                 6661.25                                                                                    6821.25
                 6663.75                                                                                    6823.75
                 6666.25                                                                                    6826.25
                 6668.75                                                                                    6828.75
                 6671.25                                                                                    6831.25
                 6673.75                                                                                    6833.75
                 6676.25                                                                                    6836.25
                 6678.75                                                                                    6838.75
                 6681.25                                                                                    6841.25
                 6683.75                                                                                    6843.75
                 6686.25                                                                                    6846.25
                 6688.75                                                                                    6848.75
                 6691.25                                                                                    6851.25
                 6693.75                                                                                    6853.75
                 6696.25                                                                                    6856.25
                 6698.75                                                                                    6858.75
                 6701.25                                                                                    6861.25
                 6703.75                                                                                    6863.75
                 6706.25                                                                                    6866.25
                 6708.751                                                                               1
                                                                                                            6711.25

                1   These frequencies may be assigned for unpaired use.

           (5) 3.75 MHz bandwidth channels:

                               Transmit (receive) (MHz)                   Receive (transmit) (MHz)
                 6545.6251                                                                             6715.6251
                 6550.625                                                                               6730.625
                 6555.6251                                                                             6725.6251
                 6560.625                                                                               6740.625
                 6565.625                                                                               6735.625
                 6585.625                                                                               6745.625
                 6590.625                                                                               6750.625

47 CFR 101.147(k)(5) (enhanced display)                                                              page 106 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                              47 CFR 101.147(k)(6)
Fixed Microwave Services

                               Transmit (receive) (MHz)                   Receive (transmit) (MHz)
                 6595.625                                                                                 6755.625
                 6600.625                                                                                 6760.625
                 6605.625                                                                                 6765.625
                 6610.625                                                                                 6770.625
                 6615.625                                                                                 6775.625
                 6620.625                                                                                 6780.625
                 6625.625                                                                                 6785.625
                 6630.625                                                                                 6790.625
                 6635.625                                                                                 6795.625
                 6640.625                                                                                 6800.625
                 6645.625                                                                                 6805.625
                 6650.625                                                                                 6810.625
                 6655.625                                                                                 6815.625
                 6660.625                                                                                 6820.625
                 6665.625                                                                                 6825.625
                 6670.625                                                                                 6830.625
                 6675.625                                                                                 6835.625
                 6680.625                                                                                 6840.625
                 6685.625                                                                                 6845.625
                 6690.625                                                                                 6850.625
                 6695.625                                                                                 6855.625
                 6700.625                                                                                 6860.625
                 6705.625                                                                                 6865.625
                 6710.6251                                                                            1
                                                                                                          6720.625

                1
                    These frequencies may be assigned for unpaired use.

           (6) 5 MHz bandwidth channels:

                               Transmit (receive) (MHz)                   Receive (transmit) (MHz)
                 65451                                                                                      16715

                 6550                                                                                           6730
                 65551                                                                                      1
                                                                                                                6725
                 6560                                                                                           6740
                 6565                                                                                           6735
                 6585                                                                                           6745
                 6590                                                                                           6750
                 6595                                                                                           6755
                 6600                                                                                           6760
                 6605                                                                                           6765
                 6610                                                                                           6770

47 CFR 101.147(k)(6) (enhanced display)                                                              page 107 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                              47 CFR 101.147(k)(7)
Fixed Microwave Services

                               Transmit (receive) (MHz)                   Receive (transmit) (MHz)
                 6615                                                                                          6775
                 6620                                                                                          6780
                 6625                                                                                          6785
                 6630                                                                                          6790
                 6635                                                                                          6795
                 6640                                                                                          6800
                 6645                                                                                          6805
                 6650                                                                                          6810
                 6655                                                                                          6815
                 6660                                                                                          6820
                 6665                                                                                          6825
                 6670                                                                                          6830
                 6675                                                                                          6835
                 6680                                                                                          6840
                 6685                                                                                          6845
                 6690                                                                                          6850
                 6695                                                                                          6855
                 6700                                                                                          6860
                 6705                                                                                          6865
                 67101                                                                                     1   6720

                1   These frequencies may be assigned for unpaired use.

           (7) 10 MHz bandwidth channels:

                               Transmit (receive) (MHz)                   Receive (transmit) (MHz)
                 65451                                                                                     1
                                                                                                               6715
                 65551                                                                                     1   6725
                 6565                                                                                          6735
                 6585                                                                                          6745
                 6595                                                                                          6755
                 6605                                                                                          6765
                 6615                                                                                          6775
                 6625                                                                                          6785
                 6635                                                                                          6795
                 6645                                                                                          6805
                 6655                                                                                          6815
                 6665                                                                                          6825
                 6675                                                                                          6835
                 6685                                                                                          6845
                 6695                                                                                          6855

47 CFR 101.147(k)(7) (enhanced display)                                                              page 108 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                   47 CFR 101.147(k)(8)
Fixed Microwave Services

                               Transmit (receive) (MHz)                        Receive (transmit) (MHz)
                 6705                                                                                               6865
                        2                                                                                       2
                 6535                                                                                               6575

                1   These frequencies may be assigned for unpaired use.

                2Available only for emergency restoration, maintenance bypass, or other temporary-fixed purposes.
                Such uses are authorized on a non-interference basis to other frequencies in this band. Interference
                analysis required by § 101.105 does not apply to this frequency pair.

            (8) 30 MHz bandwidth channels:

                               Transmit (receive) (MHz)                        Receive (transmit) (MHz)
                 6555                                                                                               6725
                 6595                                                                                               6755
                 6625                                                                                               6785
                 6655                                                                                               6815
                 6685                                                                                               6845

      (l)   6875 to 7125 MHz. 25 MHz authorized bandwidth.

            (1) 5 MHz bandwidth channels:

                                      Transmit                                        Receive
                                      (receive)                                      (transmit)
                                        (MHz)                                          (MHz)
                                          6877.5                                      7027.5
                                          6882.5                                      7032.5
                                          6887.5                                      7037.5
                                          6892.5                                      7042.5
                                          6897.5                                      7047.5
                                          6902.5                                      7052.5
                                          6907.5                                      7057.5
                                          6912.5                                      7062.5
                                          6917.5                                      7067.5
                                          6922.5                                      7072.5
                                          6927.5                                      7077.5
                                          6932.5                                      7082.5
                                          6937.5                                      7087.5
                                          6942.5                                      7092.5
                                          6947.5                                      7097.5
                                          6952.5                                      7102.5
                                          6957.5                                      7107.5

47 CFR 101.147(l)(1) (enhanced display)                                                                   page 109 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                               47 CFR 101.147(l)(2)
Fixed Microwave Services

                                      Transmit     Receive
                                      (receive)   (transmit)
                                        (MHz)       (MHz)
                                       6962.5      7112.5
                                       6967.5      7117.5
                                       6972.5      7122.5

           (2) 8.33 MHz bandwidth channels:

                                      Transmit     Receive
                                      (receive)   (transmit)
                                        (MHz)       (MHz)
                                      6879.165    7029.165
                                      6887.495    7037.495
                                      6895.825    7045.825
                                      6904.155    7054.155
                                      6912.485    7062.485
                                      6920.815    7070.815
                                      6929.145    7079.145
                                      6937.475    7087.475
                                      6945.805    7095.805
                                      6954.135    7104.135
                                      6962.465    7112.465
                                      6970.795    7120.795

           (3) 12.5 MHz bandwidth channels:

                                      Transmit     Receive
                                      (receive)   (transmit)
                                        (MHz)       (MHz)
                                      6881.25     7031.25
                                      6893.75     7043.75
                                      6906.25     7056.25
                                      6918.75     7068.75
                                      6931.25     7081.25
                                      6943.75     7093.75
                                      6956.25     7106.25
                                      6968.75     7118.75

47 CFR 101.147(l)(3) (enhanced display)                            page 110 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                          47 CFR 101.147(l)(4)
Fixed Microwave Services

           (4) 25 MHz bandwidth channels:

                                       Transmit               Receive
                                       (receive)             (transmit)
                                         (MHz)                 (MHz)
                                        6887.5                7037.5
                                        6912.5                7062.5
                                        6937.5                7087.5
                                        6962.5                7112.5

     (m) 10,550 to 10,680 MHz. 5 MHz authorized bandwidth.

47 CFR 101.147(m) (enhanced display)                                          page 111 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                             47 CFR 101.147(m)(1)
Fixed Microwave Services

           (1) 400 kHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 10605.225                                                            10670.225
                 10605.625                                                            10670.625
                 10606.050                                                            10671.050
                 10606.450                                                            10671.450
                 10606.875                                                            10671.875
                 10607.275                                                            10672.275
                 10607.725                                                            10672.725
                 10608.125                                                            10673.125
                 10608.550                                                            10673.550
                 10608.950                                                            10673.950
                 10609.375                                                            10674.375
                 10609.775                                                            10674.775
                 10610.225                                                            10675.225
                 10610.625                                                            10675.625
                 10611.050                                                            10676.050
                 10611.450                                                            10676.450
                 10611.875                                                            10676.875
                 10612.275                                                            10677.275
                 10612.725                                                            10677.725
                 10613.125                                                            10678.125
                 10613.550                                                            10678.550
                 10613.950                                                            10678.950
                 10614.375                                                            10679.375
                 10614.775                                                            10679.775

           (2) 800 kHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 10605.425                                                            10670.425
                 10606.250                                                            10671.250
                 10607.075                                                            10672.075
                 10607.925                                                            10672.925
                 10608.750                                                            10673.750
                 10609.575                                                            10674.575
                 10610.425                                                            10675.425
                 10611.250                                                            10676.250
                 10612.075                                                            10677.075
                 10612.925                                                            10677.925
                 10613.750                                                            10678.750

47 CFR 101.147(m)(2) (enhanced display)                                              page 112 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                             47 CFR 101.147(m)(3)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 10614.575                                                            10679.575

           (3) 1.25 MHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 10550.625                                                            10615.625
                 10551.875                                                            10616.875
                 10553.125                                                            10618.125
                 10554.375                                                            10619.375
                 10555.625                                                            10620.625
                 10556.875                                                            10621.875
                 10558.125                                                            10623.125
                 10559.375                                                            10624.375
                 10560.625                                                            10625.625
                 10561.875                                                            10626.875
                 10563.125                                                            10628.125
                 10564.375                                                            10629.375
                 10565.625                                                            10630.625
                 10566.875                                                            10631.875
                 10568.125                                                            10633.125
                 10569.375                                                            10634.375
                 10570.625                                                            10635.625
                 10571.875                                                            10636.875
                 10573.125                                                            10638.125
                 10574.375                                                            10639.375
                 10575.625                                                            10640.625
                 10576.875                                                            10641.875
                 10578.125                                                            10643.125
                 10579.375                                                            10644.375
                 10580.625                                                            10645.625
                 10581.875                                                            10646.875
                 10583.125                                                            10648.125
                 10584.375                                                            10649.375
                 10585.625                                                            10650.625
                 10586.875                                                            10651.875
                 10588.125                                                            10653.125
                 10589.375                                                            10654.375
                 10590.625                                                            10655.625
                 10591.875                                                            10656.875
                 10593.125                                                            10658.125

47 CFR 101.147(m)(3) (enhanced display)                                              page 113 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                             47 CFR 101.147(m)(4)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 10594.375                                                            10659.375
                 10595.625                                                            10660.625
                 10596.875                                                            10661.875
                 10598.125                                                            10663.125
                 10599.375                                                            10664.375
                 10600.625                                                            10665.625
                 10601.875                                                            10666.875
                 10603.125                                                            10668.125
                 10604.375                                                            10669.375
                 10605.625                                                            10670.625
                 10606.875                                                            10671.875
                 10608.125                                                            10673.125
                 10609.375                                                            10674.375
                 10610.625                                                            10675.625
                 10611.875                                                            10676.875
                 10613.125                                                            10678.125
                 10614.375                                                            10679.375

           (4) 2.5 MHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 10551.25                                                                 10616.25
                 10553.75                                                                 10618.75
                 10556.25                                                                 10621.25
                 10558.75                                                                 10623.75
                 10561.25                                                                 10626.25
                 10563.75                                                                 10628.75
                 10566.25                                                                 10631.25
                 10568.75                                                                 10633.75
                 10571.25                                                                 10636.25
                 10573.75                                                                 10638.75
                 10576.25                                                                 10641.25
                 10578.75                                                                 10643.75
                 10581.251                                                            1   10646.25
                 10583.751                                                            1
                                                                                          10648.75
                 10586.251                                                            1
                                                                                          10651.25
                 10588.751                                                            1
                                                                                          10653.75
                 10591.251                                                            1
                                                                                          10656.25
                 10593.751                                                            1
                                                                                          10658.75
                 10596.251                                                            1
                                                                                          10661.25

47 CFR 101.147(m)(4) (enhanced display)                                              page 114 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                    47 CFR 101.147(m)(4)
Fixed Microwave Services

                                Transmit (receive) (MHz)                        Receive (transmit) (MHz)
                            1                                                                               1
                 10598.75                                                                                       10663.75
                            1                                                                               1
                 10601.25                                                                                       10666.25
                            1                                                                               1
                 10603.75                                                                                       10668.75
                 10606.251                                                                                  1   10671.25
                 10608.751                                                                                  1
                                                                                                                10673.75
                            1                                                                               1
                 10611.25                                                                                       10676.25
                            1                                                                               1
                 10613.75                                                                                       10678.75

                1 These frequencies are also available for DEMS stations licensed, in operation, or applied for prior
                to July 15, 1993.

47 CFR 101.147(m)(4) (enhanced display)                                                                    page 115 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                    47 CFR 101.147(m)(5)
Fixed Microwave Services

           (5) 3.75 MHz bandwidth channels:

                               Transmit (receive) (MHz)                         Receive (transmit) (MHz)
                 10553.125                                                                                  10618.125
                 10558.125                                                                                  10623.125
                 10563.125                                                                                  10628.125
                 10568.125                                                                                  10633.125
                 10573.125                                                                                  10638.125
                 10578.125                                                                                  10643.125
                 10583.125                                                                                  10648.125
                 10588.125                                                                                  10653.125
                 10593.125                                                                                  10658.125
                 10598.125                                                                                  10663.125
                 10603.125                                                                                  10668.125

           (6) 5 MHz bandwidth channels:

                               Transmit (receive) (MHz)                         Receive (transmit) (MHz)
                 10552.5                                                                                         10617.5
                 10557.5                                                                                         10622.5
                 10562.5                                                                                         10627.5
                 10567.51                                                                                    1   10632.5
                 10572.51                                                                                    1
                                                                                                                 10637.5
                 10577.51                                                                                    1
                                                                                                                 10642.5
                 10582.51                                                                                    1   10647.5
                 10587.5                                                                                         10652.5
                 10592.5                                                                                         10657.5
                 10597.5                                                                                         10662.5
                 10602.5                                                                                         10667.5

                1 These frequencies are also available for DEMS stations licensed, in operation, or applied for prior
                to July 15, 1993.

     (n) Point-to-multipoint systems licensed, in operation, or applied for in the 10,550–10,680 MHz band prior to
         July 15, 1993, are permitted to use the DEMS frequencies noted above if they prior coordinate such usage
         with the necessary parties including 10 GHz point-to-point applicants and licensees. DEMS Nodal Stations
         shall use the band 10,565–10,615 MHz while DEMS User Stations shall use the band 10,630–10,680 MHz.

     (o) 10,700 to 11,700 MHz. 80 MHz authorized bandwidth.

           (1) 1.25 MHz bandwidth channels:

                               Transmit (receive) (MHz)                         Receive (transmit) (MHz)
                 11130.625                                                                                  11620.625

47 CFR 101.147(o)(1) (enhanced display)                                                                    page 116 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(o)(1)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 11131.875                                                            11621.875
                 11133.125                                                            11623.125
                 11134.375                                                            11624.375
                 11135.625                                                            11625.625
                 11136.875                                                            11626.875
                 11138.125                                                            11628.125
                 11139.375                                                            11629.375
                 11140.625                                                            11630.625
                 11141.875                                                            11631.875
                 11143.125                                                            11633.125
                 11144.375                                                            11634.375
                 11145.625                                                            11635.625
                 11146.875                                                            11636.875
                 11148.125                                                            11638.125
                 11149.375                                                            11639.375
                 11150.625                                                            11640.625
                 11151.875                                                            11641.875
                 11153.125                                                            11643.125
                 11154.375                                                            11644.375
                 11155.625                                                            11645.625
                 11156.875                                                            11646.875
                 11158.125                                                            11648.125
                 11159.375                                                            11649.375
                 11160.625                                                            11650.625
                 11161.875                                                            11651.875
                 11163.125                                                            11653.125
                 11164.375                                                            11654.375
                 11165.625                                                            11655.625
                 11166.875                                                            11656.875
                 11168.125                                                            11658.125
                 11169.375                                                            11659.375
                 11170.625                                                            11660.625
                 11171.875                                                            11661.875
                 11173.125                                                            11663.125
                 11174.375                                                            11664.375
                 11175.625                                                            11665.625
                 11176.875                                                            11666.875
                 11178.125                                                            11668.125
                 11179.375                                                            11669.375
                 11180.625                                                            11680.625

47 CFR 101.147(o)(1) (enhanced display)                                              page 117 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(o)(2)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 11181.875                                                            11681.875
                 11183.125                                                            11683.125
                 11184.375                                                            11684.375
                 11185.625                                                            11685.625
                 11186.875                                                            11686.875
                 11188.125                                                            11688.125
                 11189.375                                                            11689.375
                 11190.625                                                            11690.625
                 11191.875                                                            11691.875
                 11193.125                                                            11693.125
                 11194.375                                                            11694.375
                 11195.625                                                            11695.625
                 11196.875                                                            11696.875
                 11198.125                                                            11698.125
                 11199.375                                                            11699.375

           (2) 2.5 MHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 11131.25                                                              11621.25
                 11133.75                                                              11623.75
                 11136.25                                                              11626.25
                 11138.75                                                              11628.75
                 11141.25                                                              11631.25
                 11143.75                                                              11633.75
                 11146.25                                                              11636.25
                 11148.75                                                              11638.75
                 11151.25                                                              11641.25
                 11153.75                                                              11643.75
                 11156.25                                                              11646.25
                 11158.75                                                              11648.75
                 11161.25                                                              11651.25
                 11163.75                                                              11653.75
                 11166.25                                                              11656.25
                 11168.75                                                              11658.75
                 11171.25                                                              11661.25
                 11173.75                                                              11663.75
                 11176.25                                                              11666.25
                 11178.75                                                              11668.75
                 11181.25                                                              11681.25

47 CFR 101.147(o)(2) (enhanced display)                                              page 118 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(o)(3)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 11183.75                                                              11683.75
                 11186.25                                                              11686.25
                 11188.75                                                              11688.75
                 11191.25                                                              11691.25
                 11193.75                                                              11693.75
                 11196.25                                                              11696.25
                 11198.75                                                              11698.75

           (3) 3.75 MHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 11133.125                                                            11623.125
                 11138.125                                                            11628.125
                 11143.125                                                            11633.125
                 11148.125                                                            11638.125
                 11153.125                                                            11643.125
                 11158.125                                                            11648.125
                 11163.125                                                            11653.125
                 11168.125                                                            11658.125
                 11173.125                                                            11663.125
                 11178.125                                                            11668.125
                 11183.125                                                            11683.125
                 11188.125                                                            11688.125
                 11193.125                                                            11693.125
                 11198.125                                                            11698.125

           (4) 5 MHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 11132.5                                                                 11622.5
                 11137.5                                                                 11627.5
                 11142.5                                                                 11632.5
                 11147.5                                                                 11637.5
                 11152.5                                                                 11642.5
                 11157.5                                                                 11647.5
                 11162.5                                                                 11652.5
                 11167.5                                                                 11657.5
                 11172.5                                                                 11662.5
                 11177.5                                                                 11667.5
                 11182.5                                                                 11682.5
                 11187.5                                                                 11687.5

47 CFR 101.147(o)(4) (enhanced display)                                              page 119 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(o)(5)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 11192.5                                                                 11692.5
                 11197.5                                                                 11697.5

           (5) 10 MHz bandwidth channels:

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 10705                                                                       11205
                 10715                                                                       11215
                         2                                                               1
                 10725                                                                       11675
                 10735                                                                       11225
                 10745                                                                       11235
                 10755                                                                       11245
                 10765                                                                       11255
                 10775                                                                       11265
                 10785                                                                       11275
                 10795                                                                       11285
                 10805                                                                       11295
                 10815                                                                       11305
                 10825                                                                       11315
                 10835                                                                       11325
                 10845                                                                       11335
                 10855                                                                       11345
                 10865                                                                       11355
                 10875                                                                       11365
                 10885                                                                       11375
                 10895                                                                       11385
                 10905                                                                       11395
                 10915                                                                       11405
                 10925                                                                       11415
                 10935                                                                       11425
                 10945                                                                       11435
                 10955                                                                       11445
                 10965                                                                       11455
                 10975                                                                       11465
                 10985                                                                       11475
                 10995                                                                       11485
                 11005                                                                       11495
                 11015                                                                       11505
                 11025                                                                       11515
                 11035                                                                       11525

47 CFR 101.147(o)(5) (enhanced display)                                              page 120 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                47 CFR 101.147(o)(6)
Fixed Microwave Services

                               Transmit (receive) (MHz)                     Receive (transmit) (MHz)
                 11045                                                                                         11535
                 11055                                                                                         11545
                 11065                                                                                         11555
                 11075                                                                                         11565
                 11085                                                                                         11575
                 11095                                                                                         11585
                 11105                                                                                         11595
                 11115                                                                                         11605
                 11125                                                                                         11615
                         1                                                                                 1
                 11135                                                                                         11625
                         1                                                                                 1
                 11145                                                                                         11635
                 111551                                                                                    1
                                                                                                               11645
                 111651                                                                                    1   11655
                 111751                                                                                    1
                                                                                                               11665
                 111851                                                                                    1
                                                                                                               11685
                 111951                                                                                    1   11695

                1Alternate channels. These channels are set aside for narrow bandwidth systems and should be
                used only if all other channels are blocked.

                2   These frequencies may be assigned for unpaired use.

           (6) 30 MHz bandwidth channels:

                               Transmit (receive) (MHz)                     Receive (transmit) (MHz)
                 10715                                                                                         11215
                 10755                                                                                         11245
                 10795                                                                                         11285
                 10835                                                                                         11325
                 10875                                                                                         11365
                 10915                                                                                         11405
                 10955                                                                                         11445
                 10995                                                                                         11485
                 11035                                                                                         11525
                 11075                                                                                         11565
                 11115                                                                                         11605
                 111551                                                                                    1
                                                                                                               11645
                 111851                                                                                    1
                                                                                                               11685

                1Alternate channels. These channels are set aside for narrow bandwidth systems and should be
                used only if all other channels are blocked.

47 CFR 101.147(o)(6) (enhanced display)                                                                page 121 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                 47 CFR 101.147(o)(7)
Fixed Microwave Services

           (7) 40 MHz bandwidth channels:2

                               Transmit (receive) (MHz)                      Receive (transmit) (MHz)
                 10735                                                                                          11225
                 10775                                                                                          11265
                 10815                                                                                          11305
                 10855                                                                                          11345
                 10895                                                                                          11385
                 10935                                                                                          11425
                 10975                                                                                          11465
                 11015                                                                                          11505
                 11055                                                                                          11545
                 11095                                                                                          11585
                 111351                                                                                     1
                                                                                                                11625
                 111751                                                                                     1
                                                                                                                11665

                1Alternate channels. These channels are set aside for narrow bandwidth systems and should be
                used only if all other channels are blocked.

                2In congested areas where 40 MHz channels block most 30 MHz channels, radios authorized for
                30 MHz bandwidths may use the 40 MHz channels. In uncongested areas, 30 MHz channels should
                be used.

           (8) 80 MHz bandwidth channels:1

                                      Transmit                                      Receive
                                      (receive)                                    (transmit)
                                        (MHz)                                        (MHz)
                                       10755                                         11245
                                       10835                                         11325
                                       10915                                         11405
                                       10995                                         11485
                                       11075                                         11565
                                       11155                                         11645

     (p) 12,200 to 13,150 MHz —

           (1) 12,000–12,700 MHz. The Commission has allocated the 12.2–12.7 GHz band for use by the Direct
               Broadcast Satellite Service (DBS), the Multichannel Video Distribution and Data Service (MVDDS),
               and the Non-Geostationary Satellite Orbit Fixed Satellite Service (NGSO FSS). MVDDS shall be
               licensed on a non-harmful interference co-primary basis to existing DBS operations and on a co-
               primary basis with NGSO FSS stations in this band. MVDDS use can be on a common carrier and/or
               non-common carrier basis and can use channels of any desired bandwidth up to the maximum of
               500 MHz provided the EIRP does not exceed 14 dBm per 24 megahertz. Private operational fixed
               point-to-point microwave stations authorized after September 9, 1983, are licensed on a non-harmful
47 CFR 101.147(p)(1) (enhanced display)                                                                 page 122 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                   47 CFR 101.147(p)(2)
Fixed Microwave Services

                interference basis to DBS and are required to make any and all adjustments necessary to prevent
                harmful interference to operating domestic DBS receivers. Incumbent public safety licensees shall
                be afforded protection from MVDDS and NGSO FSS licensees, however all other private operational
                fixed licensees shall be secondary to DBS, MVDDS and NGSO FSS licensees. As of May 23, 2002, the
                Commission no longer accepts applications for new licenses for point-to-point private operational
                fixed stations in this band, however, incumbent licensees and previously filed applicants may file
                applications for minor modifications and amendments (as defined in § 1.929 of this chapter) thereto,
                renewals, transfer of control, or assignment of license. Notwithstanding any other provisions, no
                private operational fixed point-to-point microwave stations are permitted to cause harmful
                interference to broadcasting-satellite stations of other countries operating in accordance with the
                Region 2 plan for the Broadcasting-Satellite Service established at the 1983 WARC.

           (2) 12,700 to 13,150 MHz. 50 MHz authorized bandwidth.

                 (i)   5 MHz channels:

                                             Transmit                                  Receive
                                             (receive)                                (transmit)
                                               (MHz)                                    (MHz)
                                             12702.5                                   12927.5
                                             12707.5                                   12932.5
                                             12712.5                                   12937.5
                                             12717.5                                   12942.5
                                             12722.5                                   12947.5
                                             12727.5                                   12952.5
                                             12732.5                                   12957.5
                                             12737.5                                   12962.5
                                             12742.5                                   12967.5
                                             12747.5                                   12972.5
                                             12752.5                                   12977.5
                                             12757.5                                   12982.5
                                             12762.5                                   12987.5
                                             12767.5                                   12992.5
                                             12772.5                                   12997.5
                                             12777.5                                   13002.5
                                             12782.5                                   13007.5
                                             12787.5                                   13012.5
                                             12792.5                                   13017.5
                                             12797.5                                   13022.5
                                             12802.5                                   13027.5
                                             12807.5                                   13032.5
                                             12812.5                                   13037.5
                                             12817.5                                   13042.5
                                             12822.5                                   13047.5

47 CFR 101.147(p)(2)(i) (enhanced display)                                                             page 123 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                     47 CFR 101.147(p)(2)(ii)
Fixed Microwave Services

                                              Transmit      Receive
                                              (receive)    (transmit)
                                                (MHz)        (MHz)
                                              12827.5      13052.5
                                              12832.5      13057.5
                                              12837.5      13062.5
                                              12842.5      13067.5
                                              12847.5      13072.5
                                              12852.5      13077.5
                                              12857.5      13082.5
                                              12862.5      13087.5
                                              12867.5      13092.5
                                              12872.5      13097.5
                                              12877.5      13102.5
                                              12882.5      13107.5
                                              12887.5      13112.5
                                              12892.5      13117.5
                                              12897.5      13122.5
                                              12902.5      13127.5
                                              12907.5      13132.5
                                              12912.5      13137.5
                                              12917.5      13142.5
                                              12922.5      13147.5

                 (ii) 8.33 MHz bandwidth channels:

                                               Transmit      Receive
                                               (receive)    (transmit)
                                                 (MHz)        (MHz)
                                              12704.165    12929.165
                                              12712.495    12937.495
                                              12720.825    12945.825
                                              12729.155    12954.155
                                              12737.485    12962.485
                                              12745.815    12970.815
                                              12754.145    12979.145
                                              12762.475    12987.475
                                              12770.805    12995.805
                                              12779.135    13004.135
                                              12787.465    13012.465
                                              12795.795    13020.795
                                              12804.125    13029.125

47 CFR 101.147(p)(2)(ii) (enhanced display)                                 page 124 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                   47 CFR 101.147(p)(2)(iii)
Fixed Microwave Services

                                               Transmit     Receive
                                               (receive)   (transmit)
                                                 (MHz)       (MHz)
                                           12812.455       13037.455
                                           12820.785       13045.785
                                           12829.115       13054.115
                                           12837.445       13062.445
                                           12845.775       13070.775
                                           12854.105       13079.105
                                           12862.435       13087.435
                                           12870.765       13095.765
                                           12879.095       13104.095
                                           12887.425       13112.425
                                           12895.755       13120.755
                                           12904.085       13129.085
                                           12912.415       13137.415

                (iii) 12.5 MHz bandwidth channels:

                                           Transmit         Receive
                                           (receive)       (transmit)
                                             (MHz)           (MHz)
                                           12706.25        12931.25
                                           12718.75        12943.75
                                           12731.25        12956.25
                                           12743.75        12968.75
                                           12756.25        12981.25
                                           12768.75        12993.75
                                           12781.25        13006.25
                                           12793.75        13018.75
                                           12806.25        13031.25
                                           12818.75        13043.75
                                           12831.25        13056.25
                                           12843.75        13068.75
                                           12856.25        13081.25
                                           12868.75        13093.75
                                           12881.25        13106.25
                                           12893.75        13118.75
                                           12906.25        13131.25
                                           12918.75        13143.75

47 CFR 101.147(p)(2)(iii) (enhanced display)                               page 125 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                 47 CFR 101.147(p)(2)(iv)
Fixed Microwave Services

                (iv) 25 MHz bandwidth channels:

                                           Transmit                                      Receive
                                           (receive)                                    (transmit)
                                             (MHz)                                        (MHz)
                                              12712.5                                   12937.5
                                              12737.5                                   12962.5
                                              12762.5                                   12987.5
                                              12787.5                                   13012.5
                                              12812.5                                   13037.5
                                              12837.5                                   13062.5
                                              12862.5                                   13087.5
                                              12887.5                                   13112.5
                                              12912.5                                   13137.5

                 (v) 50 MHz bandwidth channels:

                                           Transmit                                      Receive
                                           (receive)                                    (transmit)
                                             (MHz)                                        (MHz)
                                               12725                                     12950
                                               12775                                     13000
                                               12825                                     13050
                                               12875                                     13100

     (q) Special provisions for incumbent low power, limited coverage systems in the band segments 12.2–12.7
         GHz.

           (1) As of May 23, 2002, the Commission no longer accepts applications for new stations in this service
               and incumbent stations may remain in service provided they do not cause harmful interference to
               any other primary services licensed in this band as described in paragraph (p) of this section.
               However, incumbent licensees and previously filed applicants may file applications for minor
               modifications and amendments (as defined in § 1.929 of this chapter) thereto, renewals, transfer of
               control, or assignment of license.

           (2) Prior to December 8, 2000, notwithstanding any contrary provisions in this part, the frequency pairs
               12.220/12.460 GHz, 12.260/12.500 GHz, 12.300/12.540 GHz and 12.340/12.580 GHz, were
               authorized for low power, limited coverage systems subject to the following provisions:

                 (i)   Maximum equivalent isotropically radiated power (EIRP) shall be 55 dBm;

                 (ii) The rated transmitter output power shall not exceed 0.5 watts;

                (iii) Frequency tolerance shall be maintained to within 0.01 percent of the assigned frequency;

                (iv) Maximum beamwidth shall not exceed 4 degrees. However, the sidelobe suppression criteria
                     contained in § 101.115 shall not apply, except that a minimum front-to-back ratio of 38 dB shall
                     apply;

47 CFR 101.147(q)(2)(iv) (enhanced display)                                                              page 126 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                   47 CFR 101.147(q)(2)(v)
Fixed Microwave Services

                 (v) Upon showing of need, a maximum bandwidth of 12 MHz may be authorized per frequency
                     assigned;

                (vi) Radio systems authorized under the provisions of this section shall have no more than three
                     hops in tandem, except upon showing of need, but in any event the maximum tandem length
                     shall not exceed 40 km (25 miles);

                (vii) Interfering signals at the receiver antenna terminals of stations authorized under this section
                      shall not exceed −90 dBm and −70 dBm respectively, for co-channel and adjacent channel
                      interfering signals, and

                (viii) Stations authorized under the provisions of this section shall provide the protection from
                       interference specified in § 101.105 to stations operating in accordance with the provisions of
                       this part.

     (r) 17,700 to 19,700 and 24,250 to 25,250 MHz: Operation of stations using frequencies in these bands is
         permitted to the extent specified in this paragraph. Until November 19, 2012, stations operating in the
         band 18.3–18.58 GHz that were licensed or had applications pending before the Commission as of
         November 19, 2002 shall operate on a shared co-primary basis with other services under parts 21, 25, 74,
         and 78 of this chapter. Until October 31, 2011, operations in the band 19.26–19.3 GHz and low power
         systems operating pursuant to paragraph (r)(10) of this section shall operate on a co-primary basis. Until
         June 8, 2010, stations operating in the band 18.58–18.8 GHz that were licensed or had applications
         pending before the Commission as of June 8, 2000 may continue those operations on a shared co-
         primary basis with other services under parts 21, 25, 74, and 78 of this chapter. Until June 8, 2010,
         stations operating in the band 18.8–19.3 GHz that were licensed or had applications pending before the
         Commission as of September 18, 1998 may continue those operations on a shared co-primary basis with
         other services under parts 21, 25, 74, and 78 of this chapter. After November 19, 2012, stations operating
         in the band 18.3–18.58 GHz are not entitled to protection from fixed-satellite service operations and must
         not cause unacceptable interference to fixed-satellite service station operations. After June 8, 2010,
         operations in the 18.58–19.30 GHz band are not entitled to protection from fixed-satellite service
         operations and must not cause unacceptable interference to fixed-satellite service station operations.
         After November 19, 2002, no applications for new stations for 47 CFR part 101 licenses will be accepted
         in the 18.3–18.58 GHz band. After June 8, 2000, no applications for new stations for 47 CFR part 101
         licenses will be accepted in the 18.58–19.3 GHz band. Licensees, except 24 GHz band licensees, may use
         either a two-way link or one frequency of a frequency pair for a one-way link and must coordinate
         proposed operations pursuant to the procedures required in § 101.103 of this subpart. (Note, however,
         that stations authorized as of September 9, 1983, to use frequencies in the band 17.7–19.7 GHz may,
         upon proper application, continue to be authorized for such operations, consistent with the above
         conditions related to the 18.58–19.3 GHz band.) Applicants for one-way spectrum from 17.7–18.58 GHz
         for multichannel video programming distribution are governed by paragraph (r)(6) of this section.
         Licensees are also allowed to use one-way (unpaired) channels in the 17.7–17.74 GHz sub-band to pair
         with other channels in the FS portions of the 18 GHz band where, for example, the return pair is already in
         use and therefore blocked or in TDD systems. Stations used for MVPD operations in the 17.7–17.8 GHz
         band must coordinate with the Federal Government before operating in the zones specified in § 1.924(e)
         of this chapter.

           (1) 1.25 Megahertz maximum authorized bandwidth channels:

                               Transmit (receive) (MHz)                          Receive (transmit) (MHz)
                 17700.625                                                                                           NA

47 CFR 101.147(r)(1) (enhanced display)                                                                     page 127 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(r)(1)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 17701.875                                                                    NA
                 17703.125                                                                    NA
                 17704.375                                                                    NA
                 17705.625                                                                    NA
                 17706.875                                                                    NA
                 17708.125                                                                    NA
                 17709.375                                                                    NA
                 17710.625                                                                    NA
                 17711.875                                                                    NA
                 17713.125                                                                    NA
                 17714.375                                                                    NA
                 17715.625                                                                    NA
                 17716.875                                                                    NA
                 17718.125                                                                    NA
                 17719.375                                                                    NA
                 17721.625                                                                    NA
                 17722.875                                                                    NA
                 17723.125                                                                    NA
                 17724.375                                                                    NA
                 17725.625                                                                    NA
                 17726.875                                                                    NA
                 17728.125                                                                    NA
                 17729.375                                                                    NA
                 17730.625                                                                    NA
                 17731.875                                                                    NA
                 17733.125                                                                    NA
                 17734.375                                                                    NA
                 17735.625                                                                    NA
                 17736.875                                                                    NA
                 17738.125                                                                    NA
                 17739.375                                                                    NA
                 18060.625                                                            19620.625
                 18061.875                                                            19621.875
                 18063.125                                                            19623.125
                 18064.375                                                            19624.375
                 18065.625                                                            19625.625
                 18066.875                                                            19626.875
                 18068.125                                                            19628.125
                 18069.375                                                            19629.375
                 18070.625                                                            19630.625

47 CFR 101.147(r)(1) (enhanced display)                                              page 128 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                              47 CFR 101.147(r)(1)
Fixed Microwave Services

                               Transmit (receive) (MHz)   Receive (transmit) (MHz)
                 18071.875                                                            19631.875
                 18073.125                                                            19633.125
                 18074.375                                                            19634.375
                 18075.625                                                            19635.625
                 18076.875                                                            19636.875
                 18078.125                                                            19638.125
                 18079.375                                                            19639.375
                 18080.625                                                            19640.625
                 18081.875                                                            19641.875
                 18083.125                                                            19643.125
                 18084.375                                                            19644.375
                 18085.625                                                            19645.625
                 18086.875                                                            19646.875
                 18088.125                                                            19648.125
                 18089.375                                                            19649.375
                 18090.625                                                            19650.625
                 18091.875                                                            19651.875
                 18093.125                                                            19653.125
                 18094.375                                                            19654.375
                 18095.625                                                            19655.625
                 18096.875                                                            19656.875
                 18098.125                                                            19658.125
                 18099.375                                                            19659.375
                 18100.625                                                            19660.625
                 18101.875                                                            19661.875
                 18103.125                                                            19663.125
                 18104.375                                                            19664.375
                 18105.625                                                            19665.625
                 18106.875                                                            19666.875
                 18108.125                                                            19668.125
                 18109.375                                                            19669.375
                 18110.625                                                            19670.625
                 18111.875                                                            19671.875
                 18113.125                                                            19673.125
                 18114.375                                                            19674.375
                 18115.625                                                            19675.625
                 18116.875                                                            19676.875
                 18118.125                                                            19678.125
                 18119.375                                                            19679.375
                 18120.625                                                            19680.625

47 CFR 101.147(r)(1) (enhanced display)                                              page 129 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                          47 CFR 101.147(r)(2)
Fixed Microwave Services

                               Transmit (receive) (MHz)               Receive (transmit) (MHz)
                 18121.875                                                                         19681.875
                 18123.125                                                                         19683.125
                 18124.375                                                                         19684.375
                 18125.625                                                                         19685.625
                 18126.875                                                                         19686.875
                 18128.125                                                                         19688.125
                 18129.375                                                                         19689.375
                 18130.625                                                                         19690.625
                 18131.875                                                                         19691.875
                 18133.125                                                                         19693.125
                 18134.375                                                                         19694.375
                 18135.625                                                                         19695.625
                 18136.875                                                                         19696.875
                 18138.125                                                                         19698.125
                 18139.375                                                                         19699.375

           (2) 2 Megahertz maximum authorized bandwidth channel:

                               Transmit (receive) (MHz)               Receive (transmit) (MHz)
                 18141.0                                                                                 N/A

           (3) 2.5 Megahertz maximum authorized bandwidth channels:

                               Transmit (receive) (MHz)               Receive (transmit) (MHz)
                 17701.25                                                                                N/A
                 17703.75                                                                                N/A
                 17706.25                                                                                N/A
                 17708.75                                                                                N/A
                 17711.25                                                                                N/A
                 17713.75                                                                                N/A
                 17716.25                                                                                N/A
                 17718.75                                                                                N/A
                 17721.25                                                                                N/A
                 17723.75                                                                                N/A
                 17726.25                                                                                N/A
                 17728.75                                                                                N/A
                 17731.25                                                                                N/A
                 17733.75                                                                                N/A
                 17736.25                                                                                N/A
                 17738.75                                                                                N/A
                 18061.25                                                                           19621.25

47 CFR 101.147(r)(3) (enhanced display)                                                          page 130 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                      47 CFR 101.147(r)(4)
Fixed Microwave Services

                               Transmit (receive) (MHz)                           Receive (transmit) (MHz)
                 18063.75                                                                                      19623.75
                 18066.25                                                                                      19626.25
                 18068.75                                                                                      19628.75
                 18071.25                                                                                      19631.25
                 18073.75                                                                                      19633.75
                 18076.25                                                                                      19636.25
                 18078.75                                                                                      19638.75
                 18081.25                                                                                      19641.25
                 18083.75                                                                                      19643.75
                 18086.25                                                                                      19646.25
                 18088.75                                                                                      19648.75
                 18091.25                                                                                      19651.25
                 18093.75                                                                                      19653.75
                 18096.25                                                                                      19656.25
                 18098.75                                                                                      19658.75
                 18101.25                                                                                      19661.25
                 18103.75                                                                                      19663.75
                 18106.25                                                                                      19666.25
                 18108.75                                                                                      19668.75
                 18111.25                                                                                      19671.25
                 18113.75                                                                                      19673.75
                 18116.25                                                                                      19676.25
                 18118.75                                                                                      19678.75
                 18121.25                                                                                      19681.25
                 18123.75                                                                                      19683.75
                 18126.25                                                                                      19686.25
                 18128.75                                                                                      19688.75
                 18131.25                                                                                      19691.25
                 18133.75                                                                                      19693.75
                 18136.25                                                                                      19696.25
                 18138.75                                                                                      19698.75

           (4) 5 Megahertz maximum authorized bandwidth channels:

                               Transmit (receive) (MHz)                           Receive (transmit) (MHz)
                 340 Megahertz Separation (* channels are no longer available on a primary basis)
                 18762.5*                                                                                       19102.5*
                 18767.5*                                                                                       19107.5*
                 18772.5*                                                                                       19112.5*
                 18777.5*                                                                                       19117.5*

47 CFR 101.147(r)(4) (enhanced display)                                                                      page 131 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                          47 CFR 101.147(r)(5)
Fixed Microwave Services

                               Transmit (receive) (MHz)                               Receive (transmit) (MHz)
                 18782.5*                                                                                           19122.5*
                 18787.5*                                                                                           19127.5*
                 18792.5*                                                                                           19132.5*
                 18797.5*                                                                                           19137.5*
                 18802.5*                                                                                           19142.5*
                 18807.5*                                                                                           19147.5*
                 18812.5*                                                                                           19152.5*
                 18817.5*                                                                                           19157.5*

           (5) 5 Megahertz maximum authorized bandwidth channels:

                                                                                                        Receive
                                          Transmit (receive) (MHz)                                     (transmit)
                                                                                                         (MHz)
                                                          1560 Megahertz Separation
                 17702.5                                                                                                 N/A
                 17707.5                                                                                                 N/A
                 17712.5                                                                                                 N/A
                 17717.5                                                                                                 N/A
                 17722.5                                                                                                 N/A
                 17727.5                                                                                                 N/A
                 17732.5                                                                                                 N/A
                 17737.5                                                                                                 N/A
                 18062.5                                                                                             19622.5
                 18067.5                                                                                             19627.5
                 18072.5                                                                                             19632.5
                 18077.5                                                                                             19637.5
                 18082.5                                                                                             19642.5
                 18087.5                                                                                             19647.5
                 18092.5                                                                                             19652.5
                 18097.5                                                                                             19657.5
                 18102.5                                                                                             19662.5
                 18107.5                                                                                             19667.5
                 18112.5                                                                                             19672.5
                 18117.5                                                                                             19677.5
                 18122.5                                                                                             19682.5
                 18127.5                                                                                             19687.5
                 18132.5                                                                                             19692.5
                 18137.5                                                                                             19697.5

47 CFR 101.147(r)(5) (enhanced display)                                                                          page 132 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                        47 CFR 101.147(r)(6)
Fixed Microwave Services

           (6) MVPD use: Multichannel video programming distributors (MVPDs) can use any size channels for
               one-way operations in the 17.7–18.58 GHz band for any permissible communications specified for
               this band in § 101.603 provided that they have coordinated the appropriate emission designators
               and power, but must request contiguous spectrum (minus spectrum that is already licensed or prior
               coordinated in the area and thus blocked). MVPD systems must meet the efficiency requirements of
               § 101.141. Spectrum at 18.3–18.58 GHz is only available for grandfathered stations. See § 101.85.

           (7) 10 Megahertz maximum authorized bandwidth channels:

                                                                                                      Receive
                                          Transmit (receive) (MHz)                                   (transmit)
                                                                                                       (MHz)
                             1560 Megahertz Separation (* channels are no longer available on a primary basis)
                 17705.0                                                                                          19265.0*
                 17715.0                                                                                          19275.0*
                 17725.0                                                                                          19285.0*
                 17735.0                                                                                          19295.0*
                 17745.0                                                                                          19305.0
                 17755.0                                                                                          19315.0
                 17765.0                                                                                          19325.0
                 17775.0                                                                                          19335.0
                 17785.0                                                                                          19345.0
                 17795.0                                                                                          19355.0
                 17805.0                                                                                          19365.0
                 17815.0                                                                                          19375.0
                 17825.0                                                                                          19385.0
                 17835.0                                                                                          19395.0
                 17845.0                                                                                          19405.0
                 17855.0                                                                                          19415.0
                 17865.0                                                                                          19425.0
                 17875.0                                                                                          19435.0
                 17885.0                                                                                          19445.0
                 17895.0                                                                                          19455.0
                 17905.0                                                                                          19465.0
                 17915.0                                                                                          19475.0
                 17925.0                                                                                          19485.0
                 17935.0                                                                                          19495.0
                 17945.0                                                                                          19505.0
                 17955.0                                                                                          19515.0
                 17965.0                                                                                          19525.0
                 17975.0                                                                                          19535.0
                 17985.0                                                                                          19545.0
                 17995.0                                                                                          19555.0

47 CFR 101.147(r)(7) (enhanced display)                                                                      page 133 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                      47 CFR 101.147(r)(7)
Fixed Microwave Services

                                                                                    Receive
                                          Transmit (receive) (MHz)                 (transmit)
                                                                                     (MHz)
                 18005.0                                                                        19565.0
                 18015.0                                                                        19575.0
                 18025.0                                                                        19585.0
                 18035.0                                                                        19595.0
                 18045.0                                                                        19605.0
                 18055.0                                                                        19615.0
                 18065.0                                                                        19625.0
                 18075.0                                                                        19635.0
                 18085.0                                                                        19645.0
                 18095.0                                                                        19655.0
                 18105.0                                                                        19665.0
                 18115.0                                                                        19675.0
                 18125.0                                                                        19685.0
                 18135.0                                                                        19695.0
                                                        340 Megahertz Separation
                 18585.0*                                                                       18925.0*
                 18595.0*                                                                       18935.0*
                 18605.0*                                                                       18945.0*
                 18615.0*                                                                       18955.0*
                 18625.0*                                                                       18965.0*
                 18635.0*                                                                       18975.0*
                 18645.0*                                                                       18985.0*
                 18655.0*                                                                       18995.0*
                 18665.0*                                                                       19005.0*
                 18675.0*                                                                       19015.0*
                 18685.0*                                                                       19025.0*
                 18695.0*                                                                       19035.0*
                 18705.0*                                                                       19045.0*
                 18715.0*                                                                       19055.0*
                 18725.0*                                                                       19065.0*
                 18735.0*                                                                       19075.0*
                 18745.0*                                                                       19085.0*
                 18755.0*                                                                       19095.0*
                 18765.0*                                                                       19105.0*
                 18775.0*                                                                       19115.0*
                 18785.0*                                                                       19125.0*
                 18795.0*                                                                       19135.0*
                 18805.0*                                                                       19145.0*

47 CFR 101.147(r)(7) (enhanced display)                                                   page 134 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                        47 CFR 101.147(r)(8)
Fixed Microwave Services

                                                                                                      Receive
                                          Transmit (receive) (MHz)                                   (transmit)
                                                                                                       (MHz)
                 18815.0*                                                                                         19155.0*

           (8) 20 Megahertz maximum authorized bandwidth channels:

                                                                                                      Receive
                                          Transmit (receive) (MHz)                                   (transmit)
                                                                                                       (MHz)
                             1560 Megahertz Separation (* channels are no longer available on a primary basis)
                 17710.0                                                                                          19270.0*
                 17730.0                                                                                          19290.0*
                 17750.0                                                                                          19310.0
                 17770.0                                                                                          19330.0
                 17790.0                                                                                          19350.0
                 17810.0                                                                                          19370.0
                 17830.0                                                                                          19390.0
                 17850.0                                                                                          19410.0
                 17870.0                                                                                          19430.0
                 17890.0                                                                                          19450.0
                 17910.0                                                                                          19470.0
                 17930.0                                                                                          19490.0
                 17950.0                                                                                          19510.0
                 17970.0                                                                                          19530.0
                 17990.0                                                                                          19550.0
                 18010.0                                                                                          19570.0
                 18030.0                                                                                          19590.0
                 18050.0                                                                                          19610.0
                 18070.0                                                                                          19630.0
                 18090.0                                                                                          19650.0
                 18110.0                                                                                          19670.0
                 18130.0                                                                                          19690.0
                                                        340 Megahertz Separation
                 18590.0*                                                                                         18930.0*
                 18610.0*                                                                                         18950.0*
                 18630.0*                                                                                         18970.0*
                 18650.0*                                                                                         18990.0*
                 18670.0*                                                                                         19010.0*
                 18690.0*                                                                                         19030.0*
                 18710.0*                                                                                         19050.0*
                 18730.0*                                                                                         19070.0*

47 CFR 101.147(r)(8) (enhanced display)                                                                      page 135 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                          47 CFR 101.147(r)(9)
Fixed Microwave Services

                                                                                                        Receive
                                           Transmit (receive) (MHz)                                    (transmit)
                                                                                                         (MHz)
                 18750.0*                                                                                           19090.0*
                 18770.0*                                                                                           19110.0*
                 18790.0*                                                                                           19130.0*
                 18810.0*                                                                                           19150.0*

           (9) 30 Megahertz maximum authorized bandwidth channels:

                               Transmit (receive) (MHz)                               Receive (transmit) (MHz)
                                                          1560 Megahertz Separation
                 17715.0                                                                                                 N/A
                 17755.0                                                                                             19315.0
                 17785.0                                                                                             19345.0
                 17815.0                                                                                             19375.0
                 17845.0                                                                                             19405.0
                 17875.0                                                                                             19435.0
                 17905.0                                                                                             19465.0
                 17935.0                                                                                             19495.0
                 17965.0                                                                                             19525.0
                 17995.0                                                                                             19555.0
                 18025.0                                                                                             19585.0
                 18055.0                                                                                             19615.0
                 18085.0                                                                                             19645.0
                 18115.0                                                                                             19675.0

          (10) 40 Megahertz maximum authorized bandwidth channels:

                               Transmit (receive) (MHz)                               Receive (transmit) (MHz)
                             1560 Megahertz Separation (* channels are no longer available on a primary basis)
                 17720.0                                                                                            19280.0*
                 17760.0                                                                                             19320.0
                 17800.0                                                                                             19360.0
                 17840.0                                                                                             19400.0
                 17880.0                                                                                             19440.0
                 17920.0                                                                                             19480.0
                 17960.0                                                                                             19520.0
                 18000.0                                                                                             19560.0
                 18040.0                                                                                             19600.0
                 18080.0                                                                                             19640.0
                 18120.0                                                                                             19680.0

47 CFR 101.147(r)(10) (enhanced display)                                                                         page 136 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                          47 CFR 101.147(r)(11)
Fixed Microwave Services

          (11) 50 Megahertz maximum authorized bandwidth channels:

                               Transmit (receive) (MHz)                               Receive (transmit) (MHz)
                                                          1560 Megahertz Separation
                 17765.0                                                                                             19325.0
                 17815.0                                                                                             19375.0
                 17865.0                                                                                             19425.0
                 17915.0                                                                                             19475.0
                 17965.0                                                                                             19525.0
                 18015.0                                                                                             19575.0
                 18065.0                                                                                             19625.0
                 18115.0                                                                                             19675.0

          (12) 80 Megahertz maximum authorized bandwidth channels:

                                                                                                        Receive
                                           Transmit (receive) (MHz)                                    (transmit)
                                                                                                         (MHz)
                             1560 Megahertz Separation (* channels are no longer available on a primary basis)
                 17740.0                                                                                            19300.0*
                 17820.0                                                                                             19380.0
                 17900.0                                                                                             19460.0
                 17980.0                                                                                             19540.0
                 18060.0                                                                                             19620.0

          (13) The following frequencies on channels 35–39 are available for point-to-multipoint systems and are
               available by geographic area licensing in the 24 GHz Service to be used as the licensee desires. The
               24 GHz spectrum can be aggregated or disaggregated and does not have to be used in the transmit/
               receive manner shown except to comply with international agreements along the U.S. borders.
               Channels 35 through 39 are licensed in the 24 GHz Service by Economic Areas for any digital fixed
               service. Channels may be used at either nodal or subscriber station locations for transmit or receive
               but must be coordinated with adjacent channel and adjacent area users in accordance with the
               provisions of § 101.509 of this subpart. Stations also must comply with international coordination
               agreements.

                                                             Nodal station                          User station
                           Channel No.                      frequency band                        frequency band
                                                              (MHz) limits                          (MHz) limits
                                            (* channels are no longer available on a primary basis)
                 25                                                   18,820–18,830                        19,160–19,170*
                 26                                                   18,830–18,840                        19,170–19,180*
                 27                                                   18,840–18,850                        19,180–19,190*
                 28                                                   18,850–18,860                        19,190–19,200*
                 29                                                   18,860–18,870                        19,200–19,210*

47 CFR 101.147(r)(13) (enhanced display)                                                                         page 137 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                    47 CFR 101.147(r)(14)
Fixed Microwave Services

                                                            Nodal station                     User station
                             Channel No.                   frequency band                   frequency band
                                                             (MHz) limits                     (MHz) limits
                 30                                                  18,870–18,880                    19,210–19,220*
                 31                                                  18,880–18,890                    19,220–19,230*
                 32                                                  18,890–18,900                    19,230–19,240*
                 33                                                  18,900–18,910                    19,240–19,250*
                 34                                                  18,910–18,920                    19,250–19,260*
                 35                                                  24,250–24,290                     25,050–25,090
                 36                                                  24,290–24,330                     25,090–25,130
                 37                                                  24,330–24,370                     25,130–25,170
                 38                                                  24,370–24,410                     25,170–25,210
                 39                                                  24,410–24,450                     25,210–25,250

          (14) Special provision for low power systems in the 17,700–19,700 MHz band: Notwithstanding other
               provisions in 47 CFR part 101 and except for specified areas around Washington, DC, and Denver,
               Colorado, licensees of point-to-multipoint channel pairs 25–29 identified in paragraph (r)(13) of this
               section may continue to operate in accordance with the requirements of § 101.85 and may operate
               multiple low power transmitting devices within a defined service area. Operations are prohibited
               within 55 km when used outdoor and within 20 km when used indoor of the coordinates 38 deg.48′
               N/76 deg.52′ W (Washington, DC area) and 39 deg.43′ N/104 deg.46′ W (Denver, Colorado area). The
               service area will be a 28 kilometer omni directional radius originating from specified center reference
               coordinates. The specified center coordinates must be no closer than 56 kilometers from any co-
               channel nodal station or the specified center coordinates of another co-channel system. Applicants/
               licensees do not need to specify the location of each individual transmitting device operating within
               their defined service areas. Such operations are subject to the following requirements on the low
               power transmitting devices:

                 (i)   Power must not exceed one watt EIRP and 100 milliwatts transmitter output power;

                 (ii) A frequency tolerance of 0.001% must be maintained; and

                (iii) The mean power of emissions shall be attenuated in accordance with the following schedule:

                       (A) In any 4 kHz band, the center frequency of which is removed from the center frequency of
                           the assigned channel by more than 50 percent of the channel bandwidth and is within the
                           bands 18,820–18,870 MHz or 19,160–19,210 MHz:

                              A = 35 + .003 (F−0.5B) dB

                       or,

                              80 dB (whichever is the lesser attenuation).
                       Where:

                       A = Attenuation (in decibels) below output power level contained within the channel for a given
                       polarization.

47 CFR 101.147(r)(14)(iii)(A) (enhanced display)                                                         page 138 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                              47 CFR 101.147(r)(14)(iii)(B)
Fixed Microwave Services

                      B = Bandwidth of channel in kHz.

                      F = Absolute value of the difference between the center frequency of the 4 kHz band measured
                      at the center frequency of the channel in kHz.

                      (B) In any 4 kHz band the center frequency of which is outside the bands 18.820–18.870 GHz:
                          At least 43 + 10 log P (mean output power in watts) decibels.

                (iv) Low power stations authorized in the band 18.8–19.3 GHz after June 8, 2000, are restricted to
                     indoor use only. No new licenses will be authorized for applications received after April 1, 2002.

     (s) 21,200 to 23,600 MHz: 50 MHz authorized bandwidth.

                                                                                     Receive (transmit)
                                Transmit (receive) (MHz)
                                                                                          (MHz)
            (1) 2.5 MHz bandwidth channels:
             21601.25                                                                                     22801.25
             21603.75                                                                                     22803.75
             21606.25                                                                                     22806.25
             21608.75                                                                                     22808.75
             21611.25                                                                                     22811.25
             21613.75                                                                                     22813.75
             21616.25                                                                                     22816.25
             21618.75                                                                                     22818.75
             21621.25                                                                                     22821.25
             21623.75                                                                                     22823.75
             21626.25                                                                                     22826.25
             21628.75                                                                                     22828.75
             21631.25                                                                                     22831.25
             21633.75                                                                                     22833.75
             21636.25                                                                                     22836.25
             21638.75                                                                                     22838.75
             21641.25                                                                                     22841.25
             21643.75                                                                                     22843.75
             21646.25                                                                                     22846.25
             21648.75                                                                                     22848.75
             21651.25                                                                                     22851.25
             21653.75                                                                                     22853.75
             21656.25                                                                                     22856.25
             21658.75                                                                                     22858.75
             21661.25                                                                                     22861.25
             21663.75                                                                                     22863.75
             21666.25                                                                                     22866.25
             21668.75                                                                                     22868.75

47 CFR 101.147(s) (enhanced display)                                                                        page 139 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                47 CFR 101.147(s)
Fixed Microwave Services

                                                           Receive (transmit)
                                Transmit (receive) (MHz)
                                                                (MHz)
             21671.25                                                           22871.25
             21673.75                                                           22873.75
             21676.25                                                           22876.25
             21678.75                                                           22878.75
             21681.25                                                           22881.25
             21683.75                                                           22883.75
             21686.25                                                           22886.25
             21688.75                                                           22888.75
             21691.25                                                           22891.25
             21693.75                                                           22893.75
             21696.25                                                           22896.25
             21698.75                                                           22898.75
             21701.25                                                           22901.25
             21703.75                                                           22903.75
             21706.25                                                           22906.25
             21708.75                                                           22908.75
             21711.25                                                           22911.25
             21713.75                                                           22913.75
             21716.25                                                           22916.25
             21718.75                                                           22918.75
             21721.25                                                           22921.25
             21723.75                                                           22923.75
             21726.25                                                           22926.25
             21728.75                                                           22928.75
             21731.25                                                           22931.25
             21733.75                                                           22933.75
             21736.25                                                           22936.25
             21738.75                                                           22938.75
             21741.25                                                           22941.25
             21743.75                                                           22943.75
             21746.25                                                           22946.25
             21748.75                                                           22948.75
             21751.25                                                           22951.25
             21753.75                                                           22953.75
             21756.25                                                           22956.25
             21758.75                                                           22958.75
             21761.25                                                           22961.25
             21763.75                                                           22963.75
             21766.25                                                           22966.25

47 CFR 101.147(s) (enhanced display)                                             page 140 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                47 CFR 101.147(s)
Fixed Microwave Services

                                                           Receive (transmit)
                                Transmit (receive) (MHz)
                                                                (MHz)
             21768.75                                                           22968.75
             21771.25                                                           22971.25
             21773.75                                                           22973.75
             21776.25                                                           22976.25
             21778.75                                                           22978.75
             21781.25                                                           22981.25
             21783.75                                                           22983.75
             21786.25                                                           22986.25
             21788.75                                                           22988.75
             21791.25                                                           22991.25
             21793.75                                                           22993.75
             21796.25                                                           22996.25
             21798.75                                                           22998.75
             22301.25                                                           23501.25
             22303.75                                                           23503.75
             22306.25                                                           23506.25
             22308.75                                                           23508.75
             22311.25                                                           23511.25
             22313.75                                                           23513.75
             22316.25                                                           23516.25
             22318.75                                                           23518.75
             22321.25                                                           23521.25
             22323.75                                                           23523.75
             22326.25                                                           23526.25
             22328.75                                                           23528.75
             22331.25                                                           23531.25
             22333.75                                                           23533.75
             22336.25                                                           23536.25
             22338.75                                                           23538.75
             22341.25                                                           23541.25
             22343.75                                                           23543.75
             22346.25                                                           23546.25
             22348.75                                                           23548.75
             22351.25                                                           23551.25
             22353.75                                                           23553.75
             22356.25                                                           23556.25
             22358.75                                                           23558.75
             22361.25                                                           23561.25
             22363.75                                                           23563.75

47 CFR 101.147(s) (enhanced display)                                              page 141 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                47 CFR 101.147(s)
Fixed Microwave Services

                                                           Receive (transmit)
                                Transmit (receive) (MHz)
                                                                (MHz)
             22366.25                                                           23566.25
             22368.75                                                           23568.75
             22371.25                                                           23571.25
             22373.75                                                           23573.75
             22376.25                                                           23576.25
             22378.75                                                           23578.75
             22381.25                                                           23581.25
             22383.75                                                           23583.75
             22386.25                                                           23586.25
             22388.75                                                           23588.75
             22391.25                                                           23591.25
             22393.75                                                           23593.75
             22396.25                                                           23596.25
             22398.75                                                           23598.75
            (2) 5 MHz bandwidth channels:
             21602.5                                                             22802.5
             21607.5                                                             22807.5
             21612.5                                                             22812.5
             21617.5                                                             22817.5
             21622.5                                                             22822.5
             21627.5                                                             22827.5
             21632.5                                                             22832.5
             21637.5                                                             22837.5
             21642.5                                                             22842.5
             21647.5                                                             22847.5
             21652.5                                                             22852.5
             21657.5                                                             22857.5
             21662.5                                                             22862.5
             21667.5                                                             22867.5
             21672.5                                                             22872.5
             21677.5                                                             22877.5
             21682.5                                                             22882.5
             21687.5                                                             22887.5
             21692.5                                                             22892.5
             21697.5                                                             22897.5
             21702.5                                                             22902.5
             21707.5                                                             22907.5
             21712.5                                                             22912.5
             21717.5                                                             22917.5

47 CFR 101.147(s) (enhanced display)                                              page 142 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                47 CFR 101.147(s)
Fixed Microwave Services

                                                           Receive (transmit)
                                Transmit (receive) (MHz)
                                                                (MHz)
             21722.5                                                            22922.5
             21727.5                                                            22927.5
             21732.5                                                            22932.5
             21737.5                                                            22937.5
             21742.5                                                            22942.5
             21747.5                                                            22947.5
             21752.5                                                            22952.5
             21757.5                                                            22957.5
             21762.5                                                            22962.5
             21767.5                                                            22967.5
             21772.5                                                            22972.5
             21777.5                                                            22977.5
             21782.5                                                            22982.5
             21787.5                                                            22987.5
             21792.5                                                            22992.5
             21797.5                                                            22997.5
             22302.5                                                            23502.5
             22307.5                                                            23507.5
             22312.5                                                            23512.5
             22317.5                                                            23517.5
             22322.5                                                            23522.5
             22327.5                                                            23527.5
             22332.5                                                            23532.5
             22337.5                                                            23537.5
             22342.5                                                            23542.5
             22347.5                                                            23547.5
             22352.5                                                            23552.5
             22357.5                                                            23557.5
             22362.5                                                            23562.5
             22367.5                                                            23567.5
             22372.5                                                            23572.5
             22377.5                                                            23577.5
             22382.5                                                            23582.5
             22387.5                                                            23587.5
             22392.5                                                            23592.5
             22397.5                                                            23597.5
            (3) 10 MHz bandwidth channels:
             21205                                                                22405
             21215                                                                22415

47 CFR 101.147(s) (enhanced display)                                             page 143 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                47 CFR 101.147(s)
Fixed Microwave Services

                                                           Receive (transmit)
                                Transmit (receive) (MHz)
                                                                (MHz)
             21225                                                                  22425
             21235                                                                  22435
             21245                                                                  22445
             21255                                                                  22455
             21265                                                                  22465
             21275                                                                  22475
             21285                                                                  22485
             21295                                                                  22495
             21305                                                                  22505
             21315                                                                  22515
             21325                                                                  22525
             21335                                                                  22535
             21345                                                                  22545
             21355                                                                  22555
             21365                                                                  22565
             21375                                                                  22575
             21385                                                                  22585
             21395                                                                  22595
             21405                                                                  22605
             21415                                                                  22615
             21425                                                                  22625
             21435                                                                  22635
             21445                                                                  22645
             21455                                                                  22655
             21465                                                                  22665
             21475                                                                  22675
             21485                                                                  22685
             21495                                                                  22695
             21505                                                                  22705
             21515                                                                  22715
             21525                                                                  22725
             21535                                                                  22735
             21545                                                                  22745
             21555                                                                  22755
             21565                                                                  22765
             21575                                                                  22775
             21585                                                                  22785
             21595                                                                  22795
             216051                                                             1
                                                                                    22805

47 CFR 101.147(s) (enhanced display)                                             page 144 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                47 CFR 101.147(s)
Fixed Microwave Services

                                                           Receive (transmit)
                                Transmit (receive) (MHz)
                                                                (MHz)
             216151                                                             1   22815
                     1                                                          1
             21625                                                                  22825
                     1                                                          1
             21635                                                                  22835
                     1                                                          1
             21645                                                                  22845
                     1                                                          1
             21655                                                                  22855
             216651                                                             1   22865
                     1                                                          1
             21675                                                                  22875
                     1                                                          1
             21685                                                                  22885
                     1                                                          1
             21695                                                                  22895
             217051                                                             1   22905
             217151                                                             1
                                                                                    22915
                     1                                                          1
             21725                                                                  22925
             217351                                                             1
                                                                                    22935
             217451                                                             1
                                                                                    22945
             217551                                                             1   22955
             217651                                                             1
                                                                                    22965
             217751                                                             1
                                                                                    22975
             217851                                                             1   22985
             217951                                                             1
                                                                                    22995
             218052                                                             2
                                                                                    23005
             218152                                                             2
                                                                                    23015
             218252                                                             2   23025
             218352                                                             2
                                                                                    23035
             218452                                                             2   23045
             218552                                                             2
                                                                                    23055
             218652                                                             2
                                                                                    23065
             218752                                                             2
                                                                                    23075
             218852                                                             2
                                                                                    23085
             218952                                                             2
                                                                                    23095
             219052                                                             2   23105
             219152                                                             2
                                                                                    23115
             219252                                                             2
                                                                                    23125
             219352                                                             2
                                                                                    23135
             219452                                                             2   23145
             219552                                                             2
                                                                                    23155
             219652                                                             2   23165
             219752                                                             2
                                                                                    23175
             219852                                                             2
                                                                                    23185
             219952                                                             2
                                                                                    23195

47 CFR 101.147(s) (enhanced display)                                             page 145 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                47 CFR 101.147(s)
Fixed Microwave Services

                                                           Receive (transmit)
                                Transmit (receive) (MHz)
                                                                (MHz)
             22005                                                                  23205
             22015                                                                  23215
                     2
             22025                                                               232252
             22035                                                                  23235
             22045                                                                  23245
             22055                                                                  23255
             22065                                                                  23265
                     2
             22075                                                               232752
             22085                                                                  23285
             22095                                                                  23295
             22105                                                                  23305
             22115                                                                  23315
             22125                                                                  23325
             22135                                                                  23335
             22145                                                                  23345
             22155                                                                  23355
             22165                                                                  23365
             22175                                                                  23375
             22185                                                                  23385
             22195                                                                  23395
             22205                                                                  23405
             22215                                                                  23415
             22225                                                                  23425
             22235                                                                  23435
             22245                                                                  23445
             22255                                                                  23455
             22265                                                                  23465
             22275                                                                  23475
             22285                                                                  23485
             22295                                                                  23495
             223051                                                             1
                                                                                    23505
             223151                                                             1
                                                                                    23515
             223251                                                             1
                                                                                    23525
             223351                                                             1   23535
             223451                                                             1
                                                                                    23545
             223551                                                             1   23555
             223651                                                             1
                                                                                    23565
             223751                                                             1
                                                                                    23575
             223851                                                             1
                                                                                    23585

47 CFR 101.147(s) (enhanced display)                                             page 146 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                47 CFR 101.147(s)
Fixed Microwave Services

                                                           Receive (transmit)
                                Transmit (receive) (MHz)
                                                                (MHz)
             223951                                                             1   23595
            (4) 20 MHz bandwidth channels:
             21210                                                                  22410
             21230                                                                  22430
             21260                                                                  22460
             21280                                                                  22480
             21310                                                                  22510
             21330                                                                  22530
             21360                                                                  22560
             21380                                                                  22580
             21410                                                                  22610
             21430                                                                  22630
             21460                                                                  22660
             21480                                                                  22680
             21510                                                                  22710
             21530                                                                  22730
             21560                                                                  22760
             21580                                                                  22780
             216101                                                             1
                                                                                    22810
             216301                                                             1
                                                                                    22830
             216601                                                             1
                                                                                    22860
             216801                                                             1   22880
             217101                                                             1
                                                                                    22910
             217301                                                             1   22930
             217601                                                             1
                                                                                    22960
             217801                                                             1
                                                                                    22980
             218102                                                             2
                                                                                    23010
             218302                                                             2
                                                                                    23030
             218602                                                             2
                                                                                    23060
             218802                                                             2   23080
             219102                                                             2
                                                                                    23110
             219302                                                             2
                                                                                    23130
             219602                                                             2
                                                                                    23160
             219802                                                             2   23180
             22010                                                                  23210
             22030                                                                  23230
             22060                                                                  23260
             22080                                                                  23280
             22110                                                                  23310

47 CFR 101.147(s) (enhanced display)                                             page 147 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                47 CFR 101.147(s)
Fixed Microwave Services

                                                           Receive (transmit)
                                Transmit (receive) (MHz)
                                                                (MHz)
             22130                                                                  23330
             22160                                                                  23360
             22180                                                                  23380
             22210                                                                  23410
             22230                                                                  23430
             22260                                                                  23460
             22280                                                                  23480
                     1                                                          1
             22310                                                                  23510
                     1                                                          1
             22330                                                                  23530
             223601                                                             1   23560
             223801                                                             1
                                                                                    23580
            (5) 30 MHz bandwidth channels:
             21235                                                                  22435
             21285                                                                  22485
             21335                                                                  22535
             21385                                                                  22585
             21435                                                                  22635
             21485                                                                  22685
             21535                                                                  22735
             21585                                                                  22785
             216351                                                             1
                                                                                    22835
             216851                                                             1   22885
             217351                                                             1
                                                                                    22935
             217851                                                             1   22985
             218352                                                             2
                                                                                    23035
             218852                                                             2
                                                                                    23085
             219352                                                             2
                                                                                    23135
             219852                                                             2
                                                                                    23185
             22035                                                                  23235
             22085                                                                  23285
             22135                                                                  23335
             22185                                                                  23385
             22235                                                                  23435
             22285                                                                  23485
             223351                                                             1
                                                                                    23535
             223851                                                             1   23585
            (6) 40 MHz bandwidth channels:
             21220                                                                  22420
             21270                                                                  22470

47 CFR 101.147(s) (enhanced display)                                             page 148 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                47 CFR 101.147(s)
Fixed Microwave Services

                                                           Receive (transmit)
                                Transmit (receive) (MHz)
                                                                (MHz)
             21320                                                                  22520
             21370                                                                  22570
             21420                                                                  22620
             21470                                                                  22670
             21520                                                                  22720
             21570                                                                  22770
                     1                                                          1
             21620                                                                  22820
                     1                                                          1
             21670                                                                  22870
                     1                                                          1
             21720                                                                  22920
             217701                                                             1   22970
             218202                                                             2
                                                                                    23020
                     2                                                          2
             21870                                                                  23070
             219202                                                             2
                                                                                    23120
             219702                                                             2
                                                                                    23170
             22020                                                                  23220
             22070                                                                  23270
             22120                                                                  23320
             22170                                                                  23370
             22220                                                                  23420
             22270                                                                  23470
             223201                                                             1
                                                                                    23520
             223701                                                             1   23570
            (7) 50 MHz bandwidth channels:
             21225                                                                  22425
             21275                                                                  22475
             21325                                                                  22525
             21375                                                                  22575
             21425                                                                  22625
             21475                                                                  22675
             21525                                                                  22725
             21575                                                                  22775
             216251                                                             1
                                                                                    22825
             216751                                                             1
                                                                                    22875
             217251                                                             1   22925
             217751                                                             1
                                                                                    22975
             218252                                                             2   23025
             218752                                                             2
                                                                                    23075
             219252                                                             2
                                                                                    23125
             219752                                                             2
                                                                                    23175

47 CFR 101.147(s) (enhanced display)                                             page 149 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                           47 CFR 101.147(s)
Fixed Microwave Services

                                                                                      Receive (transmit)
                                Transmit (receive) (MHz)
                                                                                           (MHz)
               220252                                                                                       232252
               220752                                                                                       232752
               22125                                                                                            23325
               22175                                                                                            23375
               22225                                                                                            23425
               22275                                                                                            23475
                       1                                                                                   1
               22325                                                                                            23525
                       1                                                                                    1
               22375                                                                                            23575

           1
            Alternate channels. These channels are set aside for narrow bandwidth systems and should be
           used only if all other channels are blocked.

           2These frequencies may be assigned to low power systems, as defined in paragraph (8) of this
           section.

           (8) Special provisions for low power, limited coverage systems in the 21.8–22.0 GHz and 23.0–23.2 GHz
           band segments. Notwithstanding any contrary provisions in this part, the frequency band segment
           21.8–22.0 GHz paired with the frequency band segment 23.0–23.2 GHz may be authorized for low power,
           limited coverage systems subject to the following provisions:

           (i) The maximum EIRP shall be 55 dBm and the rated transmitter output power shall not exceed 0.100
           Watts;

           (ii) In the band segments from 21.8–22.0 GHz and 23.0–23.2 GHz, the frequency tolerance for stations
           authorized on or before April 1, 2005 is 0.05%. Existing licensees and pending applicants on that date may
           continue to operate after that date with a frequency tolerance of 0.05%, provided that it does not cause
           harmful interference to the operation of any other licensee. The frequency tolerance of § 101.107(a) shall
           apply to stations applied for after April 1, 2005;

           (iii) The maximum beamwidth shall not exceed 4 degrees;

           (iv) The sidelobe suppression criteria contained in § 101.115 of this part shall not apply, except that a
           minimum front-to-back ratio of 38 dB shall apply;

           (v) Upon showing of need, a maximum bandwidth of 50 MHz may be authorized per frequency assigned;

           (vi) Radio systems authorized under the provisions of this section shall have no more than five hops in
           tandem, except upon showing of need, but in any event the maximum tandem length shall not exceed 40
           km (25 miles);

           (vii) Interfering signals at the antenna terminals of station authorized under this section shall not exceed
           −90 dBm and −70 dBm respectively, for co-channel and adjacent channel interfering signals; and

           (viii) Stations authorized under the provisions of this section shall provide the protection from interference
           specified in § 101.105 to stations operating in accordance with the provisions of this part.

47 CFR 101.147(s) (enhanced display)                                                                        page 150 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                          47 CFR 101.147(t)
Fixed Microwave Services

     (t) 29,100–29,250; 31,000–31,300 MHz. These frequencies are available for LMDS systems. Each
         assignment will be made on a BTA service area basis, and the assigned spectrum may be subdivided as
         desired by the licensee.

     (u) 31,000–31,300 MHz. Stations licensed in this band prior to March 11, 1997, may continue their authorized
         operations, subject to license renewal, on the condition that harmful interference will not be caused to
         LMDS operations licensed in this band after June 30, 1997. Non-LMDS stations licensed after March 11,
         1997, based on applications refiled no later than June 26, 1998 are unprotected and subject to harmful
         interference from each other and from stations licensed prior to March 11, 1997, and are licensed on a
         secondary basis to LMDS. In the sub-bands 31,000–31,075 MHz and 31,225–31,300 MHz, stations
         initially licensed prior to March 11, 1997, except in LTTS, and LMDS operations authorized after June 30,
         1997, are equally protected against harmful interference from each other in accordance with the
         provisions of § 101.103(b). For stations, except in LTTS, permitted to relocate to these sub-bands, the
         following paired frequencies are available:

                         Transmit (receive) (MHz)                              Receive (transmit) (MHz)
                                           (1) 25 MHz Authorized Bandwidth Channels
            31,012.5                                                                                      31,237.5
            31,037.5                                                                                      31,262.5
            31,062.5                                                                                      31,287.5
                                               (2) 75 MHz Authorized Bandwidth Channel
            31,037.5                                                                                      31,275.0

           Note to (u): These channels are assigned for use within a rectangular service area to be described
           in the application by the maximum and minimum latitudes and longitudes. Such service area must
           be as small as practical consistent with the local service requirements of the carrier. These
           frequency plans may be subdivided as desired by the licensee and used within the service area as
           desired without further authorization subject to the terms and conditions set forth in § 101.149.
           These frequencies may be assigned only where it is shown that the applicant will have reasonable
           projected requirements for a multiplicity of service points or transmission paths within the area.

     (v) [Reserved]

     (w) Fixed systems licensed, in operation, or applied for in the 3,700–4,200, 5925–6425, 6,525–6,875,
         10,550–10,680, and 10,700–11,700 MHz bands prior to July 15, 1993, are permitted to use channel plans
         in effect prior to that date, including adding channels under those plans.

     (x) Operations on other than the listed frequencies may be authorized where it is shown that the objectives or
         requirements of the interference criteria prescribed in § 101.105 could not otherwise be met to resolve
         the interference problems.

     (y) Special requirements for operations in the band 29.1–29.25 GHz.

           (1)

47 CFR 101.147(y)(1) (enhanced display)                                                                    page 151 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                      47 CFR 101.147(y)(1)(i)
Fixed Microwave Services

                 (i)   LMDS receive stations operating on frequencies in the 29.1–29.25 GHz band within a radius of
                       75 nautical miles of the geographic coordinates provided by a non-GSO MSS licensee pursuant
                       to paragraphs (c)(2) or (c)(3)(i) of this section (the “feeder link earth station complex protection
                       zone”) shall accept any interference caused to them by such earth station complexes and shall
                       not claim protection from such earth station complexes.

                 (ii) LMDS licensees operating on frequencies in the 29.1–29.25 GHz band outside a feeder link
                      earth station complex protection zone shall cooperate fully and make reasonable efforts to
                      resolve technical problems with the non-GSO MSS licensee to the extent that transmissions
                      from the non-GSO MSS operator's feeder link earth station complex interfere with an LMDS
                      receive station.

           (2) No more than 15 days after the release of a public notice announcing the commencement of LMDS
               auctions, feeder link earth station complexes to be licensed pursuant to Section 25.257 shall be
               specified by a set of geographic coordinates in accordance with the following requirements: no
               feeder link earth station complex may be located in the top eight (8) metropolitan statistical areas
               (“MSAs”), ranked by population, as defined by the Office of Management and Budget as of June
               1993, using estimated populations as of December 1992; two (2) complexes may be located in
               MSAs 9 through 25, one of which must be Phoenix, AZ (for a complex at Chandler, AZ); two (2)
               complexes may be located in MSAs 26 to 50; three (3) complexes may be located in MSAs 51 to 100,
               one of which must be Honolulu, Hawaii (for a complex at Waimea); and the three (3) remaining
               complexes must be located at least 75 nautical miles from the borders of the 100 largest MSAs or in
               any MSA not included in the 100 largest MSAs. Any location allotted for one range of MSAs may be
               taken from an MSA below that range.

           (3)

                 (i)   Any non-GSO MSS licensee may at any time specify sets of geographic coordinates for feeder
                       link earth station complexes with each earth station contained therein to be located at least 75
                       nautical miles from the borders of the 100 largest MSAs.

                 (ii) For purposes of paragraph (c)(3)(i) of this section, non-GSO MSS feeder link earth station
                      complexes shall be entitled to accommodation only if the affected non-GSO MSS licensee
                      preapplies to the Commission for a feeder link earth station complex or certifies to the
                      Commission within sixty days of receiving a copy of an LMDS application that it intends to file
                      an application for a feeder link earth station complex within six months of the date of receipt of
                      the LMDS application.

                 (iii) If said non-GSO MSS licensee application is filed later than six months after certification to the
                       Commission, the LMDS and non-GSO MSS entities shall still cooperate fully and make
                       reasonable efforts to resolve technical problems, but the LMDS licensee shall not be obligated
                       to re-engineer its proposal or make changes to its system.

           (4) LMDS licensees or applicants proposing to operate hub stations on frequencies in the 29.1–29.25
               GHz band at locations outside of the 100 largest MSAs or within a distance of 150 nautical miles
               from a set of geographic coordinates specified under paragraph (c)(2) or (c)(3)(i) of this section
               shall serve copies of their applications on all non-GSO MSS applicants, permitees or licensees
               meeting the criteria specified in § 25.257(a). Non-GSO MSS licensees or applicants shall serve
               copies of their feeder link earth station applications, after the LMDS auction, on any LMDS applicant
               or licensee within a distance of 150 nautical miles from the geographic coordinates that it specified
               under paragraph (c)(2) or (c)(3)(i) of this section. Any necessary coordination shall commence upon

47 CFR 101.147(y)(4) (enhanced display)                                                                     page 152 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                         47 CFR 101.147(z)
Fixed Microwave Services

                notification by the party receiving an application to the party who filed the application. The results of
                any such coordination shall be reported to the Commission within sixty days. The non-GSO MSS
                earth station licensee shall also provide all such LMDS licensees with a copy of its channel plan.

     (z) 71,000–76,000 MHz; 81,000–86,000 MHz; 92,000–94,000 MHz; 94,100–95,000 MHz.

           (1) Those applicants who are approved in accordance with FCC Form 601 will each be granted a single,
               non-exclusive nationwide license. Site-by-site registration is on a first-come, first-served basis.
               Registration will be in the Universal Licensing System until the Wireless Telecommunications Bureau
               announces by public notice, the implementation of a third-party database. See 47 CFR 101.1523.
               Links may not operate until NTIA approval is received. Licensees may use these bands for any point-
               to-point non-broadcast service.

           (2) Prior links shall be protected using the interference protection criteria set forth in section 101.105.
               For transmitters employing digital modulation techniques and operating in the 71,000–76,000 MHz
               or 81,000–86,000 MHz bands, the licensee must construct a system that meets a minimum bit rate
               of 0.125 bits per second per Hertz of bandwidth. For transmitters that operate in the 92,000–94,000
               MHz or 94,100–95,000 MHz bands, licensees must construct a system that meets a minimum bit
               rate of 1.0 bit per second per Hertz of bandwidth. If it is determined that a licensee has not met
               these loading requirements, then the database will be modified to limit coordination rights to the
               spectrum that is loaded and the licensee will lose protection rights on spectrum that has not been
               loaded.

[61 FR 26677, May 28, 1996]

Editorial Note: For FEDERAL REGISTER citations affecting § 101.147, see the List of CFR Sections Affected, which
appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

§ 101.149 [Reserved]
§ 101.151 Use of signal boosters.
Private operational-fixed licensees authorized to operate multiple address systems in the 928–929/952–960 MHz
and 932–932.5/941–941.5 MHz bands may employ signal boosters at fixed locations in accordance with the
following criteria:

     (a) The amplified signal is retransmitted only on the exact frequency(ies) of the originating base, fixed,
         mobile, or portable station(s). The booster will fill in only weak signal areas and cannot extend the
         system's normal signal coverage area.

     (b) Class A narrowband signal boosters must be equipped with automatic gain control circuitry which will
         limit the total effective radiated power (ERP) of the unit to a maximum of 5 watts under all conditions.
         Class B broadband signal boosters are limited to 5 watts ERP for each authorized frequency that the
         booster is designed to amplify.

     (c) Class A narrowband boosters must meet the out-of-band emission limits of § 101.111 for each
         narrowband channel that the booster is designed to amplify. Class B broadband signal boosters must
         meet the emission limits of § 101.111 for frequencies outside of the booster's design passband.

47 CFR 101.151(c) (enhanced display)                                                                       page 153 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                          47 CFR 101.151(d)
Fixed Microwave Services

     (d) Class B broadband signal boosters are permitted to be used only in confined or indoor areas such as
         buildings, tunnels, underground areas, etc., or remote areas, i.e., areas where there is little or no risk of
         interference to other users.

     (e) The licensee is given authority to operate signal boosters without separate authorization from the
         Commission. Certificated equipment must be employed and the licensee must ensure that all applicable
         rule requirements are met.

     (f) Licensees employing either Class A narrowband or Class B broadband signal boosters as defined in §
         101.3 are responsible for correcting any harmful interference that the equipment may cause to other
         systems.

[61 FR 31052, June 19, 1996, as amended at 63 FR 36611, July 7, 1998]

Subpart D—Operational Requirements
§ 101.201 Station inspection.
The licensee of each station authorized in the radio services included in this part must make the station available
for inspection by representatives of the Commission at any reasonable hour.

§ 101.203 Communications concerning safety of life and property.
     (a) Handling and transmission of messages concerning the safety of life or property which is in imminent
         danger must be afforded priority over other messages.

     (b) No person may knowingly cause to be transmitted any false or fraudulent message concerning the safety
         of life or property, or refuse upon demand immediately to relinquish the use of a radio circuit to enable the
         transmission of messages concerning the safety of life or property which is in imminent danger, or
         knowingly interfere or otherwise obstruct the transmission of such messages.

§ 101.205 Operation during emergency.
The licensee of any station in these services may, during a period of emergency in which normal communication
facilities are disrupted as a result of hurricane, flood, earthquake, or similar disaster, utilize such station for
emergency communication service in a manner other than that specified in the instrument of authorization:
Provided:

     (a) That as soon as possible after the beginning of such emergency use, notice be sent to the Commission
         stating the nature of the emergency and the use to which the station is being put;

     (b) That the emergency use of the station must be discontinued as soon as substantially normal
         communication facilities are again available;

     (c) That the Commission must be notified immediately when such special use of the station is terminated;

     (d) That, in no event, will any station engage in emergency transmission on frequencies other than, or with
         power in excess of, that specified in the instrument of authorization or as otherwise expressly provided by
         the Commission, or by law; and

     (e) That the Commission may, at any time, order the discontinuance of any such emergency communication.

[61 FR 26677, May 28, 1996, as amended at 63 FR 68983, Dec. 14, 1998]

47 CFR 101.205(e) (enhanced display)                                                                       page 154 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                           47 CFR 101.207
Fixed Microwave Services

§ 101.207 Suspension of transmission.
Transmission must be suspended immediately upon detection by the station or operator licensee or upon
notification by the Commission of a deviation from the technical requirements of the station authorization and must
remain suspended until such deviation is corrected, except for transmission concerning the immediate safety of life
or property, in which case transmission must be suspended immediately after the emergency is terminated.

§ 101.209 Operation of stations at temporary fixed locations for communication between the
United States and Canada or Mexico.
Stations authorized to operate at temporary fixed locations may not be used for transmissions between the United
States and Canada, or the United States and Mexico, without prior specific notification to, and authorization from,
the Commission. Notification of such intended usage of the facilities should include a detailed showing of the
operation proposed, including the parties involved, the nature of the communications to be handled, the terms and
conditions of such operations, the time and place of operation, such other matters as the applicant deems relevant,
and a showing as to how the public interest, convenience and necessity would be served by the proposed operation.
Such notification should be given sufficiently in advance of the proposed date of operation to permit any appropriate
correlation with the respective foreign government involved (see §§ 101.31, 101.811, 101.813, and 101.815).

§ 101.211 Operator requirements.
     (a) Any person, with the consent or authorization of the licensee, may employ stations in this service for the
         purpose of telecommunications in accordance with the conditions and limitations set forth in § 101.135.

     (b) The station licensee is responsible for the proper operation of the station at all times and is expected to
         provide for observations, servicing and maintenance as often as may be necessary to ensure proper
         operation.

     (c) The provisions of paragraph (a) of this section may not be construed to change or diminish in any respect
         the responsibility of station licensees to have and to maintain control over the stations licensed to them
         (including all transmitter units thereof), or for the proper functioning and operation of those stations
         (including all transmitter units thereof) in accordance with the terms of the licenses of those stations.

§ 101.213 Station identification.
Stations in these services are exempt from the requirement to identify transmissions by call sign or any other
station identifier.

§ 101.215 Posting of station authorization and transmitter identification cards, plates, or signs.
     (a) Each licensee shall post at the station the name, address and telephone number of the custodian of the
         station license or other authorization if such license or authorization is not maintained at the station.

     (b) The requirements in paragraph (a) of this section do not apply to remote stations using frequencies listed
         in § 101.147(b).

§ 101.217 Station records.
Each licensee of a station subject to this part shall maintain records in accordance with the following:

     (a) For all stations, the results and dates of transmitter measurements and the name of the person or
         persons making the measurements;
47 CFR 101.217(a) (enhanced display)                                                                       page 155 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                        47 CFR 101.217(b)
Fixed Microwave Services

     (b) For all stations, when service or maintenance duties are performed, which may affect their proper
         operation, the responsible operator shall sign and date an entry in the station record concerned, giving:

           (1) Pertinent details of all transmitter adjustments performed by him or under his supervision; and

           (2) His name and address, provided that this information, so long as it remains unchanged, is not
               required to be repeated in the case of a person who is regularly employed as operator on a full-time
               basis at the station.

     (c) The records shall be kept in an orderly manner, and in such detail that the data required are readily
         available. Key letters or abbreviations may be used if proper meaning or explanation is set forth in the
         record.

     (d) Each entry in the records of each station shall be signed by a person qualified to do so, having actual
         knowledge of the facts to be recorded.

     (e) No record or portion thereof shall be erased, obliterated, or willfully destroyed within the required retention
         period. Any necessary correction may be made only by the person originating the entry, who shall strike
         out the erroneous portion, initial the correction made and indicate the date of correction.

     (f) Records required by this part shall be retained by the licensee for a period of at least one year.

Subpart E—Miscellaneous Common Carrier Provisions
§ 101.301 National defense; free service.
Any common carrier authorized under the rules of this part may render to any agency of the United States
Government free service in connection with the preparation for the national defense. Every such carrier rendering
any such free service must make and file, in duplicate, with the Commission, on or before the 31st of July and on or
before the 31st day of January in each year, reports covering the periods of 6 months ending on the 30th of June
and the 31st of December, respectively, next prior to said dates. These reports must show the names of the
agencies to which free service was rendered pursuant to this rule, the general character of the communications
handled for each agency, and the charges in dollars which would have accrued to the carrier for such service
rendered to each agency if charges for such communications had been collected at the published tariff rates.

§ 101.303 Answers to notices of violation.
Any person receiving official notice of a violation of the terms of the Communications Act of 1934, as amended, any
other Federal statute or Executive Order pertaining to radio or wire communications or any international radio or
wire communications treaty or convention, or regulations annexed thereto to which the United States is a party, or
the rules and regulations of the Federal Communications Commission, must, within 10 days from such receipt, send
a written answer to the office of the Commission originating the official notice. If an answer cannot be sent or an
acknowledgment made within such 10-day period by reason of illness or other unavoidable circumstances,
acknowledgment and answer must be made at the earliest practicable date with a satisfactory explanation of the
delay. The answer to each notice must be complete in itself and may not be abbreviated by reference to other
communications or answers to other notices. If the notice relates to some violation that may be due to the physical
or electrical characteristics of transmitting apparatus, the answer must state fully what steps have been taken to
prevent future violations, and, if any new apparatus is to be installed, the date such apparatus was ordered, the
name of the manufacturer, and promised date of delivery. If the installation of such apparatus requires a
construction permit, the file number of the application must be given or, if a file number has not been assigned by
the Commission, such identification as will permit ready reference thereto. If the notice of violation relates to

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                                                                                                               47 CFR 101.305
Fixed Microwave Services

inadequate maintenance resulting in improper operation of the transmitter, the name and license number of the
operator performing the maintenance must be given. If the notice of violation relates to some lack of attention to, or
improper operation of, the transmitter by other employees, the reply must enumerate the steps taken to prevent a
recurrence of such lack of attention or improper operation.

§ 101.305 Discontinuance, reduction or impairment of service.
     (a) If the public communication service provided by a station in the Common Carrier Radio Services, the Local
         Multipoint Distribution Service or 24 GHz Service is involuntarily discontinued, reduced or impaired for a
         period exceeding 48 hours, the station licensee must promptly notify the Commission. In every such case,
         the licensee must furnish full particulars as to the reasons for such discontinuance, reduction or
         impairment of service, including a statement as to when normal service is expected to be resumed. When
         normal service is resumed, prompt notification thereof must be given Commission.

     (b) No station licensee subject to title II of the Communications Act of 1934, as amended, may voluntarily
         discontinue, reduce or impair public communication service to a community or part of a community
         without obtaining prior authorization from the Commission pursuant to the procedures set forth in part 63
         of this chapter. In the event that permanent discontinuance of service is authorized by the Commission,
         the station license is terminated; except that station licenses in the Local Multipoint Distribution Service
         and 24 GHz Service are not terminated if the discontinuance is a result of a change of status by the
         licensee from common carrier to non-common carrier pursuant to § 1.929 of this chapter.

     (c) Any licensee not subject to title II of the Communications Act of 1934, as amended, who voluntarily
         discontinues, reduces or impairs public communication service to a community or a part of a community
         must notify the Commission within 7 days thereof. In the event of permanent discontinuance of service,
         the station license is automatically terminated; except that station licenses in the Local Multipoint
         Distribution Service and 24 GHz Service are not terminated if the discontinuance is a result of a change of
         status by the licensee from non-common carrier to common carrier pursuant to § 1.929 of this chapter.

     (d) If any common carrier radio frequency should not be used to render any service as authorized during a
         consecutive period of twelve months at any time after construction is completed under circumstances
         that do not fall within the provisions of paragraph (a), (b), or (c) of this section, or, if removal of equipment
         or facilities has rendered the station not operational, the licensee must, within thirty days of the end of
         such period of nonuse:

           (1) Cancel the station license (or licenses); or

           (2) File an application for modification of the license (or licenses) to delete the unused frequency (or
               frequencies); or

           (3) Request waiver of this rule and demonstrate either that the frequency will be used (as evidenced by
               appropriate requests for service, etc.) within six months of the end of the initial period of nonuse, or
               that the frequency will be converted to allow rendition of other authorized public services within one
               year of the end of the initial period of nonuse by the filing of appropriate applications within six
               months of the end of the period of nonuse.

[61 FR 26677, May 28, 1996, as amended at 62 FR 23168, Apr. 29, 1997; 63 FR 68983, Dec. 14, 1998; 65 FR 59359, Oct. 5, 2000]

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                                                                                                        47 CFR 101.307
Fixed Microwave Services

§ 101.307 Tariffs, reports, and other material required to be submitted to the Commission.
Sections 1.771 through 1.815 of this chapter contain summaries of certain materials and reports, including
schedule of charges and accounting and financial reports, which, when applicable, must be filed with the
Commission.

§ 101.309 Requirement that licensees respond to official communications.
All licensees in these services are required to respond to official communications from the Commission with
reasonable dispatch and according to the tenor of such communications. Failure to do so will be given appropriate
consideration in connection with any subsequent applications which the offending party may file and may result in
the designation of such applications for hearing, or in appropriate cases, the institution of proceedings looking to
the modification or revocation of the pertinent authorizations.

§ 101.311 Equal employment opportunities.
Equal opportunities in employment must be afforded by all common carrier licensees and all Local Multipoint
Distribution Service and 24 GHz Service licensees in accordance with the provisions of § 21.307 of this chapter.

[65 FR 59359, Oct. 5, 2000]

Subpart F [Reserved]

Subpart G—24 GHz Service and Digital Electronic Message Service
§ 101.501 Eligibility.
See § 101.147(n) for licensing of DEMS facilities in the 10.6 GHz band. Applications for new facilities using the 18
GHz band are no longer being accepted. Any entity, other than one precluded by § 101.7, is eligible for authorization
to provide 24 GHz Service under this subpart.

[65 FR 59359, Oct. 5, 2000]

§ 101.503 Digital Electronic Message Service Nodal Stations.
10.6 GHz DEMS Nodal Stations may be authorized only as a part of an integrated communication system wherein
10.6 GHz DEMS User Stations associated therewith also are licensed to the 10.6 GHz DEMS Nodal Station licensee.
Applications for 10.6 GHz DEMS Nodal Station licenses should specify the maximum number of 10.6 GHz DEMS
User Stations to be served by that nodal station. Any increase in that number must be applied for pursuant to §
1.913 of this chapter.

[65 FR 59359, Oct. 5, 2000]

§ 101.505 Frequencies.
Frequencies, and the conditions on which they are available, for DEMS operations are contained in this subpart as
well as in § 101.147(m), (n), and (r)(9).

[65 FR 59359, Oct. 5, 2000]

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                                                                                                       47 CFR 101.507
Fixed Microwave Services

§ 101.507 Frequency stability.
The frequency stability in the 10,550–10,680 MHz band must be ±0.0001% for each DEMS Nodal Station transmitter
and ±0.0003% for each DEMS User Station transmitter. The frequency stability in the 24,250–25,250 MHz bands
must be ±0.001% for each Nodal Station transmitter and ±0.003% for each User Station transmitter.

[68 FR 4961, Jan. 31, 2003]

§ 101.509 Interference protection criteria.
     (a) As a condition for use of frequencies in this service each licensee is required to:

           (1) Engineer the system to be reasonably compatible with adjacent and co-channel operations in the
               same or adjacent areas on all frequencies; and

           (2) Cooperate fully and in good faith to resolve whatever potential interference and transmission
               security problems may be present in adjacent and co-channel operations.

     (b) All harmful interference to other users of co-channel and adjacent channel use in the same or adjacent
         geographical area are prohibited. In areas where Economic Areas are in close proximity, careful
         consideration should be given to minimum power requirements and to the location, height, and radiation
         pattern of the transmitting and receiving antennas. Licensees are expected to cooperate fully in
         attempting to resolve problems of potential interference before bringing the matter to the attention of the
         Commission.

     (c) Licensee shall coordinate their facilities whenever the facilities have optical line-of-sight into other
         licensees' areas or are within the same geographic area. Licensees are encouraged to develop operational
         agreements with relevant licensees in the same or adjacent areas. Incumbent SMSA licensee(s) shall
         retain exclusive rights to its channel(s) within its SMSA and must be protected.

     (d) Licensees shall comply with the appropriate coordination agreements between the United States and
         Canada and the United States and Mexico concerning cross-border sharing and use of the 24 GHz bands
         which may require using channels pairs in accordance with the table in § 101.147(r)(9).

     (e) The Commission recommends that coordination is not necessary if the power flux density (pfd) at the
         boundary of the relevant adjacent area is lower than −114 dBW/m2 in any 1 MHz. This value can be
         changed and agreed upon by both coordinating parties. Licensees should be able to deploy with a pfd up
         to −94 dBW/m2 in any 1 MHz at the boundary of the relevant adjacent area without negatively affecting
         the successful operations of the adjacent area licensee.

[65 FR 59360, Oct. 5, 2000]

§ 101.511 Permissible services.
     (a) Authorizations for stations in the 24 GHz Service will be granted to provide services on a common carrier
         basis or a non-common carrier basis or on both a common carrier and non-common carrier basis in a
         single authorization.

     (b) Stations may render any kind of digital communications service consistent with the Commission's rules
         and the regulatory status of the station to provide services on a common carrier or non-common carrier
         basis.

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     (c) An applicant or licensee may submit a petition at any time requesting clarification of the regulatory status
         required to provide a specific communications service.

[65 FR 59360, Oct. 5, 2000]

§ 101.513 Transmitter power.
The transmitter power will be governed by § 101.113. Further, each application must contain an analysis
demonstrating compliance with § 101.113(a).

§ 101.515 Emissions and bandwidth.
Different types of emissions may be authorized if the applicant describes fully the modulation and bandwidth
desired, and demonstrates that the bandwidth desired is no wider than needed to provide the intended service. In no
event, however, may the necessary or occupied bandwidth exceed the specified channel width of the assigned pair.

§ 101.517 Antennas.
     (a) Transmitting antennas may be omnidirectional or directional, consistent with coverage and interference
         requirements.

     (b) The use of horizontal or vertical plane wave polarization, or right hand or left hand rotating elliptical
         polarization must be used to minimize harmful interference between stations.

     (c) Directive antennas must be used at all DEMS User Stations and may be elevated no higher than necessary
         to assure adequate service. Antenna structures requiring FAA notification under part 17 of this chapter
         must be registered with the Commission. The structure owner is responsible for registering, painting, and
         lighting the structure if applicable. Requests for such authorization must show the inclusive dates of the
         proposed operation.

§ 101.519 Interconnection.
     (a) All DEMS licensees must make available to the public all information necessary to allow the manufacture
         of user equipment that will be compatible with the licensee's network.

     (b) All DEMS licensees must make available to the public all information necessary to allow interconnection
         of DEMS networks.

§ 101.521 Spectrum utilization.
All applicants for DEMS frequencies in the 10.6 GHz band must submit as part of the original application a detailed
plan indicating how the bandwidth requested will be utilized. In particular the application must contain detailed
descriptions of the modulation method, the channel time sharing method, any error detecting and/or correcting
codes, any spatial frequency reuse system and the total data throughput capacity in each of the links in the system.
Further, the application must include a separate analysis of the spectral efficiency including both information bits
per unit bandwidth and the total bits per unit bandwidth.

[65 FR 59360, Oct. 5, 2000]

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Fixed Microwave Services

§ 101.523 Service areas.
     (a) The service areas for 24 GHz are Economic Areas (EAs) as defined in this paragraph (a). The Bureau of
         Economic Analysis, U.S. Department of Commerce, organized the 50 States and the District of Columbia
         into 172 EAs. See 60 FR 13114 (March 10, 1995). Additionally, there are four FCC-created EA-like areas:

           (1) Guam and Northern Mariana Islands;

           (2) Puerto Rico and the U.S. Virgin Islands;

           (3) American Samoa, and

           (4) The Gulf of Mexico. The Gulf of Mexico EA extends from 12 nautical miles off the U.S. Gulf coast
               outward into the Gulf. See 62 FR 9636 (March 3, 1997), in which the Commission created an
               additional four economic area-like areas for a total of 176 EA service areas. Maps of the EAs and the
               FEDERAL REGISTER Notice that established the 172 Economic Areas (EAs) are available for public
               inspection through the Federal Communications Commission's Reference Information Center. These
               maps and data are also available on the FCC website at www.fcc.gov/oet/info/maps/areas/. These
               maps and data are also available on the FCC Web site at www.fcc.gov/oet/info/maps/areas/.

     (b) Where an incumbent SMSA license area in the 24 GHz band occupies only a portion of an EA available for
         application under the competitive bidding rules, the SMSA portion will be excluded from auction and the
         incumbent licensee will retain the exclusive right to those channels within the SMSA.

[65 FR 59360, Oct. 5, 2000, as amended at 69 FR 44608, July 27, 2004; 85 FR 64411, Oct. 13, 2020; 88 FR 21451, Apr. 10, 2023]

§ 101.525 24 GHz system operations.
     (a) A licensee using the 24 GHz band may construct and operate any number of fixed stations anywhere
         within the area authorized to serve without prior authorization, except as follows:

           (1) A station would be required to be individually licensed if:

                 (i)   International agreements require coordination;

                 (ii) Submission of an Environmental Assessment is required under § 1.1307 of this chapter;

                (iii) The station would affect areas identified in § 1.924 of this chapter.

           (2) Any antenna structure that requires notification to the Federal Aviation Administration (FAA) must be
               registered with the Commission prior to construction under § 17.4 of this chapter.

     (b) Whenever a licensee constructs or makes system changes as described in paragraph (a)(1) of this
         section, the licensee is required to notify the Commission within 30 days of the change under § 1.947 of
         this chapter and include a statement of the technical parameters of the changed station.

[65 FR 59360, Oct. 5, 2000, as amended at 69 FR 17959, Apr. 6, 2004]

§ 101.526 License term.
The license term for stations licensed under this subpart is ten years from the date of license grant or license
renewal for incumbent licensees.

[65 FR 59360, Oct. 5, 2000]

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Fixed Microwave Services

§ 101.527 Construction requirements for 24 GHz operations.
     (a) Each licensee must make a showing of “substantial service” within ten years of its license grant.
         “Substantial service” is a service which is sound, favorable, and substantially above a level of mediocre
         service which just might minimally warrant renewal during its past license term. Until January 1, 2023,
         “substantial service” assessment will be made at renewal pursuant to the provisions and procedures set
         forth in § 1.949 of this chapter.

     (b) Until January 1, 2023, each licensee must, at a minimum file:

           (1) A report, maps and other supporting documents describing its current service in terms of geographic
               coverage and population served to the Commission. The report must also contain a description of
               the licensees' investments in its operations. The report must be labeled as an attachment to the
               renewal application; and

           (2) Copies of all FCC orders finding the licensee to have violated the Communications Act or any FCC
               rule or policy; and a list of any pending proceedings that relate to any matter described in this
               paragraph (b)(2).

     (c) Failure to demonstrate that substantial service is being provided in the service area will result in forfeiture
         of the license, and the licensee will be unable to regain it.

     (d) The frequencies associated with incumbent authorizations, licensed on a SMSA basis, that have cancelled
         automatically or otherwise been recovered by the Commission will automatically revert to the applicable
         EA licensee.

[65 FR 59360, Oct. 5, 2000, as amended at 82 FR 41549, Sept. 1, 2017]

§ 101.531 [Reserved]
§ 101.533 Regulatory status.
     (a) Initial applications. An applicant for a 24 GHz license must specify on FCC Form 601 if it is requesting
         authorization to provide services on a common carrier basis, a non-common carrier basis, or on both a
         common carrier and non-common carrier basis.

     (b) Amendment of pending applications. Any pending application may be amended to:

           (1) Change the carrier status requested; or

           (2) Add to the pending request in order to obtain both common carrier and non-common carrier status in
               a single license.

     (c) Modification of license. A licensee may modify a license to:

           (1) Change the carrier status authorized; or

           (2) Add to the status authorized in order to obtain both common carrier and non-common carrier status
               in a single license.

[65 FR 59361, Oct. 5, 2000]

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                                                                                                            47 CFR 101.535
Fixed Microwave Services

§ 101.535 Geographic partitioning and spectrum aggregation/disaggregation.
     (a) Eligibility. (1) 24 GHz licensees may apply to the Commission to partition their licensed geographic service
         areas to eligible entities and are free to determine the portion of their service areas to be partitioned. 24
         GHz licensees may aggregate or disaggregate their licensed spectrum at any time following the grant of a
         license.

           (2) Any existing frequency coordination agreements shall convey with the assignment of the geographic
               area or spectrum, and shall remain in effect unless new agreements are reached.

     (b) Technical standards —

           (1) Aggregation. There is no limitation on the amount of spectrum that a 24 GHz licensee may
               aggregate.

           (2) Partitioning. In the case of partitioning, applicants and licensees must file FCC Form 603 pursuant to
               § 1.948 of this chapter and list the partitioned service area on a schedule to the application. The
               geographic coordinates must be specified in degrees, minutes, and seconds to the nearest second
               of latitude and longitude and must be based upon the 1983 North American Datum (NAD83).

           (3) Disaggregation. Spectrum may be disaggregated in any amount. A licensee need not retain a
               minimum amount of spectrum.

           (4) Combined partitioning and disaggregation. The Commission will consider requests for partial
               assignment of licenses that propose combinations of partitioning and disaggregation.

     (c) License term. The license term for a partitioned license area and for disaggregated spectrum shall be the
         remainder of the original licensee's license term as provided for in § 101.526.

[65 FR 59361, Oct. 5, 2000, as amended at 67 FR 46379, July 9, 2002; 82 FR 41549, Sept. 1, 2017]

§ 101.537 24 GHz band subject to competitive bidding.
Mutually exclusive initial applications for 24 GHz band licenses are subject to competitive bidding. The general
competitive bidding procedures set forth in part 1, subpart Q of this chapter will apply unless otherwise provided in
this subpart.

[67 FR 46379, July 9, 2002]

§ 101.538 Designated entities.
     (a) Eligibility for small business provisions.

           (1) A very small business is an entity that, together with its controlling interests and affiliates, has
               average gross revenues not exceeding $3 million for the preceding three years.

           (2) A small business is an entity that, together with its controlling interests and affiliates, has average
               gross revenues not exceeding $15 million for the preceding three years.

           (3) An entrepreneur is an entity that, together with its controlling interests and affiliates, has average
               gross revenues not exceeding $40 million for the preceding three years.

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     (b) Bidding credits. A winning bidder that qualifies as a very small business, as defined in this section, or a
         consortium of very small businesses may use the bidding credit specified in § 1.2110(f)(2)(i) of this
         chapter. A winning bidder that qualifies as a small business, as defined in this section, or a consortium of
         small businesses may use the bidding credit specified in § 1.2110(f)(2)(ii) of this chapter. A winning
         bidder that qualifies as an entrepreneur, as defined in this section, or a consortium of entrepreneurs may
         use the bidding credit specified in § 1.2110(f)(2)(iii) of this chapter.

[65 FR 59361, Oct. 5, 2000, as amended at 67 FR 46379, July 9, 2002; 68 FR 43002, July 21, 2003]

Subpart H—Private Operational Fixed Point-to-Point Microwave Service
§ 101.601 Eligibility.
Any person, or any governmental entity or agency, eligible for licensing in a radio service or pool under part 80, 87, or
90 of this chapter or any person proposing to provide communications service to such persons, governmental
entities or agencies is eligible to hold a license under this subpart. This subpart shall not apply to stations offering
MVDDS in the 12.2–12.7 GHz band.

[62 FR 18936, Apr. 17, 1997, as amended at 67 FR 43040, June 26, 2002]

§ 101.603 Permissible communications.
     (a) Except as provided in paragraph (b) of this section, stations in this radio service may transmit
         communications as follows:

           (1) On frequencies below 21,200 MHz, licensees may transmit their own communications, including the
               transmission of their products and information services, to their customers except that the
               distribution of video entertainment material to customers is permitted only as indicated in § 101.101
               and paragraph (a)(2) of this section.

           (2) In the frequency bands 6425–6525 MHz, 17,700–18,580 MHz, and on frequencies above 21,200
               MHz, licensees may deliver any of their own products and services to any receiving location;

           (3) Licensees may transmit the communications of their parent corporation, or of another subsidiary of
               the same parent, or their own subsidiary where the party to be served is regularly engaged in any of
               the activities that constitute the basis for eligibility to use the frequencies assigned;

           (4) Licensees may transmit the communications of other parties in accordance with § 101.135;

           (5) Licensees may transmit emergency communications unrelated to their activities in accordance with
               § 101.205;

           (6) Licensees may transmit communications on a commercial basis to eligible users, among different
               premises of a single eligible user, or from one eligible user to another as part of transmissions by
               Digital Electronic Message Service systems on the frequencies provided for this purpose;

           (7) Licensees may transmit program material from one location to another;

     (b) Stations licensed in this radio service shall not:

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           (1) Render a common carrier service of any kind. However, licensees are allowed to lease excess
               capacity to common carriers. In addition, Specialized Mobile Radio (SMR) licensees reclassified by
               the Commission as Commercial Mobile Radio Services (CMRS), that were formerly private land
               mobile radio service providers, may continue to utilize private operational fixed microwave systems
               licensed prior to April 1, 2003 for their land mobile connecting facilities.

           (2) Transmit program material for use in connection with broadcasting, except as provided in
               paragraphs (a)(2), and (a)(7)) of this section; and/or

           (3) Be used to provide the final RF link in the chain of transmission of program material to multichannel
               video programming distributors, except in the frequency bands 6425–6525 MHz and 17,700–18,580
               MHz and on frequencies above 21,200 MHz.

[61 FR 26677, May 28, 1996, as amended at 68 FR 4961, Jan. 31, 2003; 71 FR 69052, Nov. 29, 2006; 76 FR 59574, Sept. 27, 2011]

Subpart I—Common Carrier Fixed Point-to-Point Microwave Service
§ 101.701 Eligibility.
     (a) Authorizations for stations in this service will be issued to existing and proposed common carriers.
         Applications will be granted only in cases in which it is shown that:

           (1) The applicant is legally, technically, financially and otherwise qualified to render the proposed service;

           (2) There are frequencies available to enable the applicant to render a satisfactory service; and

           (3) The public interest, convenience, and necessity would be served by a grant thereof.

     (b) If the content is originated, selected, controlled, or otherwise substantively influenced by the applicant,
         licensee, or a closely affiliated entity, no station or radio frequency in this service will be authorized, or
         may be utilized, to transmit any closed circuit television signals or television signals other than broadcast
         television signals, unless:

           (1) Such service is otherwise permitted for a specific length of time by grant of an acceptable petition
               for waiver of this rule; or

           (2) Such service is otherwise permitted by a condition in the applicable instrument of authorization; or

           (3) Such service is provided pursuant to applicable FCC tariff and is temporary and occasional intra-
               company television communication for management, network supervision, or other internal carrier
               functions. For purposes of this paragraph, an entity will be considered to be “closely affiliated” with
               an applicant if it is in a parent-subsidiary relationship, or both are commonly controlled, or they have
               any common officers or management employees.

     (c) Applications for stations or frequencies that will be used primarily to relay broadcast television signals
         must include a certification that at least fifty percent of the customers (or points of service) on the
         microwave system involved, including those served through an interconnecting carrier(s), receiving
         applicant's service, will not be related or affiliated in any degree with the applicant, and that the proposed
         usage by such customers, in terms of hours of use and channels delivered, must constitute at least fifty
         percent of the usage of the applicant's microwave service. Applications that do not contain these
         certifications will be returned as unacceptable for filing.

[61 FR 26677, May 28, 1996, as amended at 63 FR 68983, Dec. 14, 1998]

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                                                                                                           47 CFR 101.703
Fixed Microwave Services

§ 101.703 Permissible communications.
Stations in this service are authorized to render any kind of communication service provided for in the legally
applicable tariffs of the carrier, unless otherwise directed in the applicable instrument of authorization or limited by
§ 101.147 or §§ 101.111 and 101.113.

§ 101.705 Special showing for renewal of common carrier station facilities using frequency
diversity.
Any application for renewal of license, for a term commencing January 1, 1975, or after, involving facilities utilizing
frequency diversity must contain a statement showing compliance with § 101.103(c) or the exceptions recognized
in paragraph 141 of the First Report and Order in Docket No. 18920 (29 FCC 2d 870). This document is available at
the library of the Federal Communications Commission, located at the address of the FCC's main office indicated in
47 CFR 0.401(a). If not in compliance, a complete statement with the reasons therefore must be submitted.

[64 FR 53242, Oct. 1, 1999, as amended at 85 FR 64411, Oct. 13, 2020]

Subpart J—Local Television Transmission Service
§ 101.801 Eligibility.
Authorizations for stations in this service will be granted to existing and proposed communication common
carriers. Applications will be granted only in cases where it is shown that:

     (a) The applicant is legally, financially, technically and otherwise qualified to render the proposed service;

     (b) There are frequencies available to enable the applicant to render a satisfactory service; and

     (c) The public interest, convenience or necessity would be served by a grant thereof.

§ 101.803 Frequencies.
     (a) Frequencies in the following bands are available for assignment to television pickup and television non-
         broadcast pickup stations in this service:

     6,425 to 6,525 MHz. (6)

     11,700 to 12,200 MHz. (3)

     13,200 to 13,250 MHz. (1)

     14,200 to 14,400 MHz. (8)

     21,200 to 22,000 MHz. (1), (2), (4), (5)

     22,000 to 23,600 MHz. (1), (2), (5)

     31,000 to 31,300 MHz. (7)

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                                                                                                      47 CFR 101.803(b)
Fixed Microwave Services

                                                           NOTES

     (1) This frequency band is shared with fixed and mobile stations licensed under this and other parts of the
     Commission's Rules.

     (2) This frequency band is shared with Government stations.

     (3) This frequency band is shared, on a secondary basis, with stations in the broadcasting-satellite and fixed-
     satellite services. As of March 1, 2005, no new LTTS operators will be licensed in the 11.7–12.2 GHz band.
     LTTS operators authorized prior to March 1, 2005 may continue to operate in 11.7–12.2 GHz band until their
     license expires; no existing LTTS licenses will be renewed in the 11.7–12.2 GHz band.

     (4) This frequency band is shared with stations in the earth-exploration satellite service.

     (5) This frequency band is shared with the common carrier and private-operational fixed point-to-point
     microwave services.

     (6) This band is co-equally shared with mobile stations licensed pursuant to parts 74 and 78 of this chapter,
     and subpart H of this part.

     (7) As of June 30, 1997, frequencies in this band only are available for assignment to LMDS radio stations,
     except for non-LMDS radio stations authorized pursuant to applications refiled no later than June 26, 1998.
     Stations authorized prior to June 30, 1997, may continue to operate within the existing terms of the
     outstanding licenses, subject to renewal. Non-LMDS stations authorized pursuant to applications refiled no
     later than June 26, 1998 shall operate on an unprotected basis and subject to harmful interference from
     similarly licensed stations or stations licensed prior to June 30, 1997, and on a secondary basis to LMDS radio
     stations.

     (8) The maximum power for the local television transmission service in the 14.2–14.4 GHz band is + 45 dBW
     except that operations are not permitted within 1.5 degrees of the geostationary orbit. As of March 1, 2005, no
     new LTTS operators will be licensed in the 14.2–14.4 GHz band. LTTS operators authorized prior to March 1,
     2005 may continue to operate in 14.2–14.4 GHz band until their license expires; no existing LTTS licenses will
     be renewed in the 11.7–12.2 GHz band.

     (b) Communications common carriers in the Local Television Transmission Service may be assigned
         frequencies listed in §§ 74.602(a), 78.18(a)(6), and 78.18(a)(7) of this chapter to provide service to
         television broadcast stations, television broadcast network-entities, cable system operators, and cable
         network-entities. Frequency availability is subject to the provisions of § 74.604 of this chapter and the use
         of the facility is limited to the permissible uses described in §§ 74.631 and 78.11 of this chapter.
         Operations on these frequencies are subject to the technical provisions of part 74, subpart F, and part 78,
         subpart D of this chapter.

     (c) [Reserved]

     (d) Frequencies in the following bands are available for assignment to television STL stations in this service:

     3,700 to 4,200 MHz (1)

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     5,925 to 6,425 MHz (1),(5)

     10,700 to 11,700 MHz (1),(6)

     11,700 to 12,100 MHz (3)

     13,200 to 13,250 MHz (2)

     21,200 to 22,000 MHz (2),(4),(7),(8)

     22,000 to 23,600 MHz (2),(6),(8)

     31,000 to 31,300 MHz (9)

                                                           NOTES

     (1) This frequency band is shared with stations in the Point to Point Microwave Radio Service and, in United
     States Possessions in the Caribbean area, with stations in the International Fixed Radiocommunications
     Services. For 3,700–4,200 MHz frequencies are only available for locations outside the contiguous United
     States and applications for new permanent or temporary facilities in this band will not be accepted for
     locations in the contiguous United States. In the contiguous United States, licensees of existing licenses, as of
     April 19, 2018, for permanent point-to-point Fixed Service links have until December 5, 2023, to self-relocate
     their point-to-point links out of the 3,700–4,200 MHz band.

     (2) This frequency band is shared with fixed and mobile stations licensed under this and other parts of the
     Commission's rules.

     (3) This frequency band is shared with space stations (space to earth) in the fixed-satellite service. As of March
     1, 2005, no new LTTS operators will be licensed in the 11.7–12.2 GHz band. LTTS operators authorized prior to
     March 1, 2005 may continue to operate in 11.7–12.2 GHz band until their license expires; no existing LTTS
     licenses will be renewed in the 11.7–12.2 GHz band.

     (4) This frequency band is shared with Government stations.

     (5) This frequency band is shared with earth stations (earth to space) in the fixed-satellite services.

     (6) The band segments 10.95–11.2 and 11.45–11.7 GHz are shared with space stations (space to earth) in the
     fixed-satellite service.

     (7) This frequency band is shared with space stations (space to earth) in the earth exploration satellite service.

     (8) This frequency band is shared with the common carrier and private-operational fixed point-to-point
     microwave services.

     (9) As of June 30, 1997, frequencies in this band only are available for assignment to LMDS radio stations,
     except for non-LMDS stations authorized pursuant to applications refiled no later than June 26, 1998. Stations
     authorized prior to June 30, 1997, may continue to operate within the existing terms of the outstanding
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     licenses, subject to renewal. Non-LMDS stations authorized pursuant to applications refiled no later than June
     26, 1998 shall operate on an unprotected basis and subject to harmful interference from each other or stations
     licensed prior to June 30, 1997, and on a secondary basis to LMDS radio stations.

     (e) 6425 to 6525 MHz—Mobile Only. Paired and un-paired operations permitted. Use of this spectrum for
         direct delivery of video programs to the general public or for multi-channel cable distribution is not
         permitted. This band is co-equally shared with mobile stations licensed pursuant to parts 74 and 78 of
         this chapter. The following channel plans apply.

           (1) 1 MHz maximum authorized bandwidth channels.

                             Transmit (or receive) (MHz)                            Receive (or transmit) (MHz)
                 6425.5                                                                                              6475.5
                 6450.5                                                                                              6500.5

           (2) 8 MHz maximum authorized bandwidth channels.

                             Transmit (or receive) (MHz)                            Receive (or transmit) (MHz)
                 6430.0                                                                                              6480.0
                 6438.0                                                                                              6488.0
                 6446.0                                                                                              6496.0
                 6455.0                                                                                              6505.0
                 6463.0                                                                                              6513.0
                 6471.0                                                                                              6521.0

           (3) 25 MHz maximum authorized bandwidth channels.

                             Transmit (or receive) (MHz)                            Receive (or transmit) (MHz)
                 6437.5                                                                                              6487.5
                 6462.5                                                                                              6512.5

     (f) The frequency 27.255 MHz in the 27.23–27.28 MHz band is allocated for assignment to microwave
         auxiliary stations in this service on a shared basis with other radio services. Assignments to stations on
         this frequency will not be protected from such interference as may be experienced from the emissions of
         industrial, scientific and medical equipment operating on 27.12 MHz in accordance with § 2.106 of this
         chapter.

[61 FR 26677, May 28, 1996, as amended at 62 FR 23168, Apr. 29, 1997; 63 FR 9448, Feb. 25, 1998; 63 FR 14039, Mar. 24, 1998;
65 FR 38332, June 20, 2000; 68 FR 4961, Jan. 31, 2003; 68 FR 12777, Mar. 17, 2003; 70 FR 4788, Jan. 31, 2005; 84 FR 63812, Nov.
19, 2019; 85 FR 22890, Apr. 23, 2020]

§ 101.805 Assignment of frequencies to mobile stations.
The assignment of frequencies to mobile stations in this service will not be limited to a single licensee within any
area. However, geographical limits within which mobile units may operate may be imposed by the Commission.

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                                                                                                         47 CFR 101.807
Fixed Microwave Services

§ 101.807 Transmitter power.
Stations in this service will not be authorized to use transmitters having a rated power output in excess of the limits
set forth in § 101.113(b) and a standby transmitter having a rated power output in excess of that of the main
transmitter with which it is associated will not be authorized. As an exception, operations on frequencies listed in
§§ 74.602(a), 78.18(a)(6), and 78.18(a)(7) of this chapter are subject to the power limitations of §§ 74.636 and
78.101(a).

[68 FR 12777, Mar. 17, 2003]

§ 101.809 Bandwidth and emission limitations.
     (a) Stations in this service operating on frequencies in the 27.23–27.28 MHz band will be authorized to
         employ only amplitude modulated or frequency modulated emission for radiotelephony. The authorization
         to use such emissions will be construed to include authority to employ unmodulated emission only for
         temporary or short periods necessary for equipment testing incident to the construction and maintenance
         of the station.

     (b) Stations in the service operating on frequencies above 940 MHz may be authorized to use amplitude
         modulated, frequency modulated or pulse type of emission for radiotelephony and television. In addition,
         the use of unmodulated emission may be authorized in appropriate cases.

     (c) The maximum bandwidths which will normally be authorized for single channel operation on frequencies
         below 500 MHz in this service must not exceed the limits set forth below:

                       Type of emission                             Authorized bandwidth (kHz)
            A3E                                                                                                  8
            F3E or (G3E)                                                                                        40

     (d) Maximum bandwidths in the following frequency bands must not exceed the limits set forth below:

                                                Maximum Authorized

                               Frequency band (MHz)                               Bandwidth (MHz)
            3,700 to 4,200                                                                                  1   20
            5,925 to 6,425                                                                                  1   30
            6,425 to 6,525                                                                                      25
                                                                                                           12
            10,700 to 12,200                                                                                    40
            13,200 to 13,250                                                                                    25
            21,200 to 23,600                                                                                1   50

           1The maximum bandwidth that will be authorized for each particular frequency in this band is
           detailed in the appropriate frequency table in § 101.147.

           2 As of March 1, 2005, no new LTTS operators will be licensed in the 11.7–12.2 GHz band. LTTS
           operators authorized prior to March 1, 2005 may continue to operate in 11.7–12.2 GHz band until
           their license expires; no existing LTTS licensees will be renewed in the 11.7–12.2 GHz band.

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     (e) The bandwidths authorized on frequencies above 500 MHz must be appropriate to the type of operation in
         any particular case. An application requesting such authorization must fully describe the modulation,
         emission, and bandwidth desired and must specify the bandwidth to be occupied.

[61 FR 26677, May 28, 1996, as amended at 68 FR 4961, Jan. 31, 2003; 70 FR 4788, Jan. 31, 2005]

§ 101.811 Modulation requirements.
     (a) The use of modulating frequencies higher than 3000 hertz for single channel radiotelephony or tone
         signaling on frequencies below 500 MHz is not authorized.

     (b) When amplitude modulation is used, the modulation percentage must be sufficient to provide efficient
         communication and must normally be maintained above 70 percent on positive peaks, but may not
         exceed 100 percent on negative peaks.

     (c) When phase or frequency modulation is used for single channel radiotelephony on frequencies below 500
         MHz, the deviation arising from modulation may not exceed plus or minus 15 kHz from the unmodulated
         carrier.

     (d) Each unmultiplexed radiotelephone transmitter having more than 3 watts plate power input to the final
         radio frequency stage and initially installed at the station in this service after September 4, 1956, must be
         provided with a device that will automatically prevent modulation in excess of that specified in paragraphs
         (b) and (c) of this section which may be caused by greater than normal audio level.

§ 101.813 Remote control operation of mobile television pickup stations.
     (a) Mobile television pickup stations (including nonbroadcast) may be operated by remote control from the
         fixed locations for periods not to exceed 6 months.

     (b) The Commission may, upon adequate showing by the licensee as to why the television pickup operations
         should not be conducted under a fixed station authorization, renew the authority granted under the
         provisions of paragraph (a) of this section.

     (c) Reference should be made to § 101.125 concerning mobile station antenna height restrictions and to
         paragraphs (c) and (f) of § 101.131 concerning control points.

§ 101.815 Stations at temporary fixed locations.
     (a) Authorizations may be issued upon proper application for the use of frequencies listed in § 101.803 by
         stations in the Local Television Transmission Service for rendition of temporary service to subscribers
         under the following conditions:

           (1) When a fixed station is to remain at a single location for less than 6 months, the location is
               considered to be temporary.

           (2) When a fixed station authorized to operate at temporary locations is installed and it subsequently
               becomes necessary for the station to operate from such location for more than six months, an
               application for a station authorization to specify the permanent location must be filed at least thirty
               days prior to the expiration of the six month period.

           (3) The station must be used only for rendition of communication service at a remote point where the
               provision of wire facilities is not practicable.

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           (4) The antenna structure height employed at any location may not exceed the criteria set forth in § 17.7
               of this chapter unless, in each instance, authorization for use of a specific maximum antenna
               structure height for each location has been obtained from the Commission prior to erection of the
               antenna. See § 101.125.

           (5) Applications for such stations must comply with the provisions of § 101.21(f).

     (b) Applications for authorizations to operate stations at temporary locations under the provisions of this
         section may be made upon FCC Form 601. Blanket applications may be submitted for the required
         number of transmitters.

     (c) Prior coordination of mobile assignments will be in accordance with the procedures in § 101.103(d)
         except that the prior coordination process for mobile (temporary fixed) assignments may be completed
         orally and the period allowed for response to a coordination notification may be less than 30 days if the
         parties agree.

[61 FR 26677, May 28, 1996, as amended at 63 FR 68984, Dec. 14, 1998; 65 FR 38332, June 20, 2000; 68 FR 4961, Jan. 31, 2003]

§ 101.817 Notification of station operation at temporary locations.
     (a) The licensee of stations authorized pursuant to § 101.813 must notify the Commission prior to each
         period of operation. This notification must include:

           (1) The call sign, manufacturer's name, type or model number, output power and specific location of the
               transmitter(s);

           (2) The maintenance location for the transmitter;

           (3) The location of the transmitting or receiving station with which it will communicate and the identity
               of the correspondent operating such facilities;

           (4) The exact frequency or frequencies to be used;

           (5) The public interest, convenience and necessity to be served by operation of the proposed installation;

           (6) The commencement and anticipated termination dates of operation from each location. In the event
               the actual termination date differs from the previous notification, written notice thereof promptly
               must be given to the Commission;

           (7) Where the notification contemplates initially a service that is to be rendered for a period longer than
               90 days, the notification must contain a showing as to why application should not be made for
               regular authorization; and

           (8) A notification must include compliance with the provisions of § 101.813(c).

     (b) A copy of the notification must be kept with the station license.

[61 FR 26677, May 28, 1996, as amended at 63 FR 68984 Dec. 14, 1998]

§ 101.819 Stations affected by coordination contour procedures.
In frequency bands shared with the communication-satellite service, applicants must also comply with the
requirements of § 101.21.

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                                                                                                       47 CFR 101.1001
Fixed Microwave Services

Subpart K [Reserved]

Subpart L—Local Multipoint Distribution Service

Source: 62 FR 23168, Apr. 29, 1997, unless otherwise noted.

§ 101.1001 Eligibility.
Any entity, other than one precluded by § 101.7 and by § 101.1003, is eligible for authorization to provide Local
Multipoint Distribution Service (LMDS) under this subpart. Authorization will be granted upon proper application
filed under the rules in this part.

§ 101.1005 Frequencies available.
     (a) The following frequencies are available for assignment to LMDS in two license blocks:

     Block A of 300 MHz

     29,100–29,250 MHz

     31,075–31,225 MHz

     Block B of 150 MHz

     31,000–31,075 MHz

     31,225–31,300 MHz

     (b) In Block A licenses, the frequencies are authorized as follows:

           (1) 29,100–29,250 MHz is shared on a co-primary basis with feeder links for non-geostationary orbit
               Mobile Satellite Service (NGSO/MSS) systems in the band and is limited to LMDS hub-to-subscriber
               transmissions, as provided in §§ 25.257 and 101.103(h) of this chapter.

           (2) 31,075–31,225 MHz is authorized on a primary protected basis and is shared with private microwave
               point-to-point systems licensed prior to March 11, 1997, as provided in § 101.103(b).

     (c) In Block B licenses, the frequencies are authorized as follows:

           (1) On a primary protected basis if LMDS shares the frequencies with systems licensed as Local
               Television Transmission Service (LTTS) licensed prior to March 11, 1997, as provided in §
               101.103(b).

           (2) On a co-equal basis with systems not licensed as LTTS prior to March 11, 1997, as provided in §
               101.103(g).

[62 FR 23168, Apr. 29, 1997, as amended at 81 FR 79945, Nov. 14, 2016]

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                                                                                                       47 CFR 101.1007
Fixed Microwave Services

§ 101.1007 Geographic service areas and number of licenses.
LMDS service areas are Basic Trading Areas (BTAs) as defined in the Rand McNally 1992 Commercial Atlas &
Marketing Guide, 123rd Edition, at pages 38–39, that identifies 487 BTAs based on the 50 States and as defined to
include the BTA-like areas of the United States Virgin Islands, American Samoa, Guam, Mayaguez/Aguadilla-Ponce,
Puerto Rico, San Juan, Puerto Rico, and the Commonwealth of Northern Marinas, for a total of 493 BTAs.

§ 101.1009 System operations.
     (a) The licensee may construct and operate any number of fixed stations anywhere within the area authorized
         by the license without prior authorization, except as follows:

           (1) A station would be required to be individually licensed if:

                 (i)   International agreements require coordination;

                 (ii) Submission of an Environmental Assessment is required under § 1.1307 of this chapter.

                (iii) The station would affect areas identified in § 1.924 of this chapter.

           (2) Any antenna structure that requires notification to the Federal Aviation Administration (FAA) must be
               registered with the Commission prior to construction under § 17.4 of this chapter.

     (b) Whenever a licensee constructs or makes system changes as described in paragraph (a) of this section,
         the licensee is required to notify the Commission within 30 days of the change under § 1.947 of this
         chapter and include a statement of the technical parameters of the changed station.

[62 FR 23168, Apr. 29, 1997, as amended at 63 FR 68984, Dec. 14, 1998; 69 FR 17959, Apr. 6, 2004]

§ 101.1011 Construction requirements.
LMDS licensees must make a showing of “substantial service” in their license area within ten years of being
licensed. “Substantial” service is defined as service which is sound, favorable, and substantially above a level of
mediocre service which might minimally warrant renewal. Failure by any licensee to meet this requirement will result
in forfeiture of the license and the licensee will be ineligible to regain it.

[82 FR 41549, Sept. 1, 2017]

§ 101.1013 Permissible communications services.
     (a) Authorizations for stations in the Local Multipoint Distribution Service will be granted to provide services
         on a common carrier basis or a non-common carrier basis or on both a common carrier and non-common
         carrier basis in a single authorization.

     (b) Stations may render any kind of communications service consistent with the Commission's rules and the
         regulatory status of the station to provide services on a common carrier or non-common carrier basis.

     (c) An applicant or licensee may submit a petition at any time requesting clarification of the regulatory status
         required to provide a specific communications service.

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                                                                                                         47 CFR 101.1017
Fixed Microwave Services

§ 101.1017 Requesting regulatory status.
     (a) Initial applications. An applicant will specify on FCC Form 601 if it is requesting authorization to provide
         services on a common carrier basis, a non-common carrier basis, or on both a common carrier and non-
         common carrier basis.

     (b) Amendment of pending applications.

           (1) Any pending application may be amended to:

                 (i)   Change the carrier status requested, or

                 (ii) Add to the pending request in order to obtain both common carrier and non-common carrier
                      status in a single license.

           (2) Amendments to change, or add to, the carrier status in a pending application are minor amendments
               pursuant to § 1.927 of this chapter.

     (c) Modification of license.

           (1) A licensee may modify a license to:

                 (i)   Change the carrier status authorized, or

                 (ii) Add to the status authorized in order to obtain both common carrier and non-common carrier
                      status in a single license.

           (2) Applications to change, or add to, the carrier status in a license are modifications not requiring prior
               Commission authorization filed under § 1.927 of this chapter. If the change results in the
               discontinuance, reduction, or impairment of an existing service, the licensee is also governed by §
               101.305(b) or (c) and submits the application under § 1.927 of this chapter in conformance with the
               time frames and requirements of §§ 101.305 (b) or (c).

[62 FR 23168, Apr. 29, 1997, as amended at 63 FR 68984, Dec. 14, 1998]

Subpart M—Competitive Bidding Procedures for LMDS

Source: 62 FR 23172, Apr. 29, 1997, unless otherwise noted.

§ 101.1101 LMDS service subject to competitive bidding.
Mutually exclusive initial applications for LMDS licenses are subject to competitive bidding procedures. The general
competitive bidding procedures set forth in part 1, subpart Q of this chapter will apply unless otherwise provided in
this subpart.

[67 FR 46379, July 9, 2002]

§§ 101.1102-101.1105 [Reserved]
§ 101.1107 Bidding credits for very small businesses, small businesses and entrepreneurs.
     (a) A winning bidder that qualifies as a very small business, as defined in § 101.1112, or a consortium of very
         small businesses may use a bidding credit of 45 percent to lower the cost of its winning bid.
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     (b) A winning bidder that qualifies as a small business, as defined in § 101.1112, or a consortium of small
         businesses may use a bidding credit of 35 percent to lower the cost of its winning bid.

     (c) A winning bidder that qualifies as an entrepreneur, as defined in § 101.1112, or a consortium of
         entrepreneurs may use a bidding credit of 25 percent to lower the cost of its winning bid.

     (d) The bidding credits referenced in paragraphs (a), (b) and (c) of this section are not cumulative.

[68 FR 43002, July 21, 2003]

§ 101.1109 Records maintenance.
All winning bidders qualifying as very small businesses, small businesses or entrepreneurs shall maintain at their
principal place of business an updated file of ownership, revenue, and asset information, including any document
necessary to establish eligibility as a very small business, small business or entrepreneur. Licensees (and their
successors-in-interest) shall maintain such files for the term of the license. Applicants that do not obtain the
license(s) for which they applied shall maintain such files until the grant of such license(s) is final, or one year from
the date of the filing of their short-form application (FCC Form 175), whichever is earlier.

[68 FR 43002, July 21, 2003]

§ 101.1111 Partitioning and disaggregation.
     (a) Definitions. Disaggregation. The assignment of discrete portions or “blocks” of spectrum licensed to a
         geographic licensee or qualifying entity.

         Partitioning. The assignment of geographic portions of a licensee's authorized service area along
                geopolitical or other boundaries.

     (b) Eligibility.

           (1) Parties seeking approval for partitioning and disaggregation shall request an authorization for partial
               assignment of a license pursuant to § 101.53. Parties shall submit the forms set forth in §
               101.15(e).

           (2) Licensees may apply to partition their licensed geographic service area or disaggregate their
               licensed spectrum at any time following the grant of their licenses.

     (c) Technical standards —

           (1) Partitioning. In the case of partitioning, requests for authorization for partial assignment of a license
               must include, as an attachment, a description of the partitioned service area. The partitioned service
               area shall be defined by coordinate points at every 3 degrees along the partitioned service area
               unless an FCC recognized service area is utilized (i.e., Major Trading Area, Basic Trading Area,
               Metropolitan Service Area, Rural Service Area or Economic Area) or county lines are followed. The
               geographic coordinates must be specified in degrees, minutes, and seconds to the nearest second
               of latitude and longitude and must be based upon the 1983 North American Datum (NAD83). In the
               case where an FCC recognized service area or county lines are utilized, applicants need only list the
               specific area(s) (through use of FCC designations or county names) that constitute the partitioned

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                                                                                                      47 CFR 101.1111(c)(2)
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                area. In such partitioning cases where an unjust enrichment payment is owed the Commission, the
                request for authorization for partial assignment of a license must include, as an attachment, a
                calculation of the population of the partitioned service area and the licensed geographic service
                area.

           (2) Disaggregation. Spectrum may be disaggregated in any amount.

           (3) Combined partitioning and disaggregation. The Commission will consider requests for partial
               assignment of licenses that propose combinations of partitioning and disaggregation.

     (d) License term. The license term for a partitioned license area and for disaggregated spectrum shall be the
         remainder of the original licensee's license term as provided for in § 101.67 of this chapter.

[63 FR 26507, May 13, 1998, as amended at 82 FR 41549, Sept. 1, 2017]

§ 101.1112 Definitions.
     (a) Scope. The definitions in this section apply to §§ 101.1101 through 101.1112, unless otherwise specified
         in those sections.

     (b) Very small business. A very small business is an entity that, together with its affiliates and controlling
         interests, has average gross revenues for the three preceding years of not more than $15 million.

     (c) Small business. A small business is an entity that, together with its affiliates and controlling interests, has
         average gross revenues for the three preceding years of more than $15 million but not more than $40
         million.

     (d) Entrepreneur. An entrepreneur is an entity that, together with its affiliates and controlling interests, has
         average gross revenues for the three preceding years of more than $40 million but not more than $75
         million.

[67 FR 46380, July 9, 2002, as amended at 68 FR 43002, July 21, 2003]

Subpart N [Reserved]

Subpart O—Multiple Address Systems

Source: 65 FR 17450, Apr. 3, 2000, unless otherwise noted.

                                                  GENERAL PROVISIONS

§ 101.1301 Scope.
This subpart sets out the regulations governing the licensing and operation of Multiple Address Systems (MAS).
The rules in this subpart are to be used in conjunction with applicable requirements contained elsewhere in the
Commission's rules, such as those requirements contained in parts 1 and 22 of this chapter.

§ 101.1303 Eligibility.
Authorizations for stations in this service will be granted in cases where it is shown that:

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                                                                                                       47 CFR 101.1303(a)
Fixed Microwave Services

     (a) The applicant is legally, financially, technically and otherwise qualified to render the proposed service;

     (b) There are frequencies available to enable the applicant to render a satisfactory service; and

     (c) The public interest, convenience or necessity would be served by a grant thereof.

§ 101.1305 Private internal service.
A private internal service is a service where entities utilize frequencies purely for internal business purposes or
public safety communications and not on a for-hire or for-profit basis.

§ 101.1307 Permissible communications.
MAS users may engage in terrestrial point-to-point and point-to-multi-point fixed and limited mobile operations.

[66 FR 35111, July 3, 2001]

§ 101.1309 Regulatory status.
     (a) The Commission will rely on each applicant to specify on FCC Form 601 the type of service or services it
         intends to provide. Each application for authorization in the bands designated for private internal use
         must include a certification stating why the application satisfies the definition of private internal use.

     (b) Any interested party may challenge the regulatory status granted an MAS licensee.

                                               SYSTEM LICENSE REQUIREMENTS

§ 101.1311 Initial EA license authorization.
     (a) Winning bidders must file an application (FCC Form 601) for an initial authorization in each market and
         frequency block.

     (b) Blanket licenses are granted for each market and frequency block. Applications for individual sites are not
         required and will not be accepted, except as specified in § 101.1329.

§ 101.1313 License term.
The license term for stations authorized under this subpart is ten years from the date of original issuance or
renewal.

§ 101.1315 Service areas.
In the frequency bands not licensed on a site-by-site basis, the geographic service areas for MAS are Economic
Areas (EAs) which are defined by the Department of Commerce's Bureau of Economic Analysis, as modified by the
Commission. The EAs will consist of 176 areas, which includes Guam and the Northern Marianas Islands, Puerto
Rico and the United States Virgin Islands, American Samoa, and the Gulf of Mexico.

[66 FR 35111, July 3, 2001]

47 CFR 101.1315 (enhanced display)                                                                        page 178 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                         47 CFR 101.1317
Fixed Microwave Services

§ 101.1317 Competitive bidding procedures for mutually exclusive MAS EA applications.
Mutually exclusive initial applications for licenses in the portions of the MAS bands licensed on a geographic area
basis are subject to competitive bidding procedures. The general competitive bidding procedures set forth in part 1,
subpart Q of this chapter will apply unless otherwise provided in this subpart.

[67 FR 46380, July 9, 2002]

§ 101.1319 Competitive bidding provisions.
For the purpose of establishing eligibility requirements and bidding credits for competitive bidding for MAS licenses,
pursuant to § 1.2110 of this chapter, the following definitions apply:

     (a) Eligibility for small business provisions.

           (1) A small business is an entity that, together with its affiliates and persons or entities that hold
               interests in such entity and their affiliates, has average gross revenues for the preceding three years
               not to exceed $15 million, as determined pursuant to § 1.2110 of this chapter.

           (2) A very small business is an entity that, together with its affiliates and persons or entities that hold
               interests in such entity and their affiliates, has average gross revenues for the preceding three years
               not to exceed $3 million, as determined pursuant to § 1.2110 of this chapter.

     (b) Bidding credits. A winning bidder that qualifies as a small business, as defined in this section, or a
         consortium of small businesses, may use the bidding credit specified in § 1.2110(f)(2)(ii) of this chapter.
         A winning bidder that qualifies as a very small business, as defined in this section, or a consortium of very
         small businesses, may use the bidding credit specified in § 1.2110(f)(2)(i) of this chapter.

[65 FR 17450, Apr. 3, 2000, as amended at 67 FR 46380, July 9, 2002]

§ 101.1321 License transfers.
     (a) An MAS system license acquired through competitive bidding procedures (including licenses obtained in
         cases of no mutual exclusivity), together with all appurtenances may be transferred, assigned, sold, or
         given away only in accordance with the provisions and procedures set forth in § 1.2111 of this chapter.

     (b) An MAS system license obtained through site-based licensing procedures, together with all
         appurtenances may be transferred, assigned, sold, or given away, to any other entity in accordance with
         the provisions and procedures set forth in § 1.948 of this chapter.

§ 101.1323 Spectrum aggregation, disaggregation, and partitioning.
     (a) Eligibility.

           (1) Parties seeking approval for partitioning and disaggregation shall request from the Commission an
               authorization for partial assignment of license. Geographic area licensees may participate in
               aggregation, disaggregation, and partitioning within the bands licensed on a geographic area basis.
               Site-based licensees may aggregate spectrum in any MAS bands, but may not disaggregate their
               licensed spectrum or partition their licensed sites.

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47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                     47 CFR 101.1323(a)(2)
Fixed Microwave Services

           (2) Eligible MAS licensees may apply to the Commission to partition their licensed geographic service
               areas to eligible entities and are free to determine the portion of their service areas to be partitioned.
               Eligible MAS licensees may aggregate or disaggregate their licensed spectrum at any time following
               the grant of a license.

     (b) Technical standards —

           (1) Aggregation.

                 (i)   There is no limitation on the amount of spectrum that an MAS licensee may aggregate.

                 (ii) Spectrum licensed to MAS licensees does not count toward the CMRS spectrum cap discussed
                      in § 20.6 of this chapter.

           (2) Disaggregation. Spectrum may be disaggregated in any amount. A licensee need not retain a
               minimum amount of spectrum.

           (3) Partitioning. In the case of partitioning, applicants and licensees must file FCC Form 603 pursuant to
               § 1.948 of this chapter and list the partitioned service area on a schedule to the application. The
               geographic coordinates must be specified in degrees, minutes, and seconds to the nearest second
               of latitude and longitude, and must be based upon the 1983 North American Datum (NAD83).

           (4) Combined partitioning and disaggregation. The Commission will consider requests from geographic
               area licensees for partial assignment of licenses that propose combinations of partitioning and
               disaggregation.

     (c) Construction requirements. Responsible parties must submit supporting documents showing compliance
         with the respective construction requirements within the appropriate construction benchmarks set forth
         in § 101.1325.

     (d) License term. The license term for a partitioned license area and for disaggregated spectrum shall be the
         remainder of the original licensee's license term as provided for in § 101.1313.

[65 FR 17450, Apr. 3, 2000, as amended at 67 FR 45380, July 9, 2002; 82 FR 41549, Sept. 1, 2017]

                                                  SYSTEM REQUIREMENTS

§ 101.1325 Construction requirements.
     (a) Incumbent and site-based licenses are subject to the construction requirements set forth in § 101.63.

     (b) Each MAS EA licensee must provide service to at least one-fifth of the population in its service area or
         “substantial service” within five years of the license grant. In addition, MAS EA licensees must make a
         showing of continued “substantial service” within ten years of the license grant. Licensees must file maps
         and other supporting documents showing compliance with the respective construction requirements
         within the appropriate five- and ten-year benchmarks of the date of their initial licenses.

     (c) Failure by any licensee to meet these requirements will result in forfeiture or non-renewal of the initial
         license, and the licensee will be ineligible to regain it.

[65 FR 17450, Apr. 3, 2000, as amended at 68 FR 4961, Jan. 31, 2003]

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                                                                                                       47 CFR 101.1329
Fixed Microwave Services

§ 101.1329 EA Station license, location, modifications.
EA licensees may construct master and remote stations anywhere inside the area authorized in their licenses,
without prior approval, so long as the Commission's technical and other Rules are complied with, except that
individual licenses are required for any master station that:

     (a) Requires the submission of an environmental assessment under § 1.1307 of this chapter;

     (b) Requires international coordination; or

     (c) The station would affect areas identified in § 1.924 of this chapter.

[65 FR 17450, Apr. 3, 2000, as amended at 69 FR 17959, Apr. 6, 2004]

§ 101.1331 Treatment of incumbents.
     (a) Any MAS station licensed by the Commission prior to July 1, 1999 in the 928.0–928.85 MHz/
         952.0–952.85 MHz/956.25–956.45 MHz and 928.85–929.0 MHz/959.85–960.0 MHz bands, as well as
         assignments or transfers of such stations approved by the Commission and consummated as of January
         19, 2000, shall be considered incumbent.

     (b) Incumbent operators in the 928.0–928.85 MHz/952.0–952.85 MHz/956.25–956.45 MHz bands are
         grandfathered as of January 19, 2000, and may continue to operate and expand their systems pursuant to
         the interference protection and co-channel spacing criteria contained in § 101.105.

           (1) MAS operators are prohibited from acquiring additional frequencies in the 928.0–928.85 MHz/
               952.0–952.85 MHz/956.25–956.45 MHz bands and the 932.25625–932.49375 MHz/
               941.25625–941.49375 MHz bands for the purpose of expanding private carrier service and from
               changing the use of their frequencies in any manner that is inconsistent with this part. Refer to §
               101.147 for designated uses.

           (2) Incumbent operators in the 928.0–928.85 MHz/952.0–952.85 MHz/956.25–956.45 MHz bands will
               include incumbents as defined in § 101.1331(a), as well as, their transferees and/or assignees and
               the successors of the transferees and/or assignees and retain their grandfathered status, provided
               that the use of the MAS frequencies remains unchanged from that of the transferor and/or assignor
               of the license.

     (c) Incumbent operators in the 928.85–929.0/959.85–960.0 MHz bands are grandfathered as of January 19,
         2000, and may expand their systems provided that the signal level of the additional transmitter(s) does
         not increase the composite contour that occurs at a 40.2 kilometer (25-mile) radius from the center of
         each master station transmitter site. Incumbent operators and geographic area licensees may negotiate
         alternative criteria.

     (d) The frequencies associated with incumbent authorizations in the 928/959 MHz bands that have cancelled
         automatically or otherwise been recovered by the Commission will automatically revert to the applicable
         EA licensee.

     (e) The frequencies associated with incumbent authorizations in the 928/952/956 MHz bands that have
         cancelled automatically will revert to the Commission.

[65 FR 17450, Apr. 3, 2000, as amended at 66 FR 35111, July 3, 2001]

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                                                                                                              47 CFR 101.1333
Fixed Microwave Services

§ 101.1333 Interference protection criteria.
     (a) Frequency coordination. All EA licensees are required to coordinate their frequency usage with co-channel
         adjacent area licensees and all other affected parties.

     (b) EA licensees are prohibited from exceeding a signal strength of 40 dBµV/m at their service area
         boundaries, unless a higher signal strength is agreed to by all affected co-channel, adjacent area
         licensees.

     (c) EA licensees are prohibited from exceeding a signal strength of 40 dBµV/m at incumbent licensees' 40.2
         kilometer (25-mile) radius composite contour specified in § 101.1331(c).

     (d) In general, licensees shall comply with the appropriate coordination agreements between the United
         States and Canada and the United States and Mexico concerning cross-border sharing and use of the
         applicable MAS frequencies.

           (1) Canada—932.0–932.25 MHz and 941.0–941.25 MHz.

                 (i)   Within Lines A, B, C, and D, as defined in § 1.928(e) of this chapter, along the U.S./Canada
                       border, U.S. stations operating in the 932.0–932.25 MHz and 941.0–941.25 MHz bands are on
                       a secondary basis and may operate provided that they shall not transmit a power flux density
                       (PFD) at the border greater than −100 dBW/m2 nor −94 dBW/m2, respectively. The U.S. has full
                       use of the frequencies in these regions up to the border in the bands 932.25–932.50 MHz and
                       941.25–941.50 MHz, and Canadian stations may operate on a secondary basis provided they
                       do not exceed the respective PFDs shown above. PFD can be determined using the following
                       formula: PFD (dBW/m2) = 10 log [EIRP/4π(D2], where EIRP is in watts, D is in meters, and the
                       power is relative to an isotropic radiator. The technical parameters are also limited by tables 1
                       and 2:

                                                     Table 1—Maximum Radiated Power

                                                                                 Maximum EIRP              Maximum ERP1
                                  Class of station              Band MHz
                                                                                 Watts       dBW          Watts          dBW
                        Master                                941.0–941.5          1000          30           600            27.8
                        Fixed Remote and Master               932.0–932.5            50          17               30         14.8

                       1   Where ERP = EIRP/1.64.>

                 (ii) Maximum antenna height above average terrain for master stations operating at a maximum
                      power shall not exceed 150 meters. Above 150 meters, the power of master stations shall be in
                      accordance with following table:

                                        Table 2—Antenna Height—Power Reduction Table

                                                                                             EIRP                      ERP
                                 Antenna height above average terrain (meters)
                                                                                         Watts      dBW      Watts           dBW
                        Above 305                                                          200        23          120        20.8
                        Above 275 to 305                                                   250        24          150        21.8

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                                                                                                    47 CFR 101.1333(d)(2)
Fixed Microwave Services

                                                                                       EIRP                  ERP
                               Antenna height above average terrain (meters)
                                                                                   Watts      dBW       Watts      dBW
                       Above 245 to 275                                               315       25         190     22.8
                       Above 215 to 245                                               400       26         240     23.8
                       Above 180 to 215                                               500       27         300     24.8
                       Above 150 to 180                                               630       28         380     25.8

           Note to Table 2: This information is from the Arrangement between the Federal Communications
           Commission and the National Telecommunications and Information Administration of the United
           States of America, and Industry Canada concerning the use of the bands 932 to 935 MHz and 941 to
           944 MHz along the United States-Canada border signed in 1994. This agreement also lists
           grandfathered stations that must be protected.

           (2) Canada—928–929 MHz and 952–960 MHz. Between Lines A and B and between Lines C and D, as
               defined in § 1.928(e) of this chapter, along the U.S./Canada border, U.S. stations operating in the
               928.50–928.75 MHz and 952.50–952.75 MHz bands are on an unprotected basis and may operate
               provided that they shall not transmit a power flux density (PFD) at or beyond the border greater than
               −100 dBW/m2. The U.S. has full use of the frequencies in these regions up to the border in the bands
               928.25–928.50 MHz and 952.25–952.50 MHz, and Canadian stations may operate on an
               unprotected basis provided they do not exceed the PFD above. Frequencies in the bands
               928.00–928.25 MHz, 928.75–929.00 MHz, 952.00–952.25 MHz, and 952.75–952.85 MHz are
               available for use on a coordinated, first-in-time, shared basis subject to protecting grandfathered
               stations. New stations must provide a minimum of 145 km (90 miles) separation or alternatively
               limit the actual PFD of the proposed station to −100 dBW/m2, at the existing co-channel master
               stations of the other country, or as mutually agreed upon on a case-by-case basis. Coordination is
               not required if the PFD at the border is lower than −100 dBW/m2. The technical criteria are also
               limited by the following:

                Maximum EIRP for master stations in the MHz band: 1000 watts (30 dBW) 952–953

                Maximum EIRP for fixed remote stations or stations in the 928–929 MHz band: 50 watts (17 dBW)
                master

                Maximum EIRP for mobile master stations: 25 watts (14 dBW)

                Maximum antenna height above average master or control stations: 152 m at 1000 watts terrain for
                EIRP, power derated in accordance with the following table:

                                       Antenna height above                                    EIRP
                                        average terrain (m)                          Watts                 dBm
                 Above 305                                                                    200                   53
                 Above 275 to 305                                                             250                   54
                 Above 244 to 274                                                             315                   55
                 Above 214 to 243                                                             400                   56

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                                                                                                      47 CFR 101.1333(d)(3)
Fixed Microwave Services

                                       Antenna height above                                       EIRP
                                        average terrain (m)                             Watts                dBm
                  Above 183 to 213                                                                500                57
                  Above 153 to 182                                                                630                58
                  Below 152                                                                      1000                60

             Note to table in paragraph (d)(2): This information is from the Arrangement between the
             Department of Communications of Canada and the Federal Communications Commission of the
             United States of America Concerning the Use of the Bands 928 to 929 MHz and 952 to 953 MHz
             along the United States-Canada Border signed in 1991. This agreement also lists grandfathered
             stations that must be protected.

             (3) Mexico. Within 113 kilometers of the U.S./Mexico border, U.S. stations operating in the 932.0–932.25
                 MHz and 941.0–941.25 MHz bands are on a secondary basis (non-interference to Mexican primary
                 licensees) and may operate provided that they shall not transmit a power flux density (PFD) at or
                 beyond the border greater than −100 dBW/m2. Upon notification from the Commission, U.S.
                 licensees must take proper measures to eliminate any harmful interference caused to Mexican
                 primary assignments. The U.S. has full use of the frequencies in these regions up to the border in the
                 bands 932.25–932.50 MHz and 941.25–941.50 MHz, and Mexican stations may operate on a
                 secondary basis (non-interference to U.S. primary licensees) provided they do not exceed the PFD
                 shown above. Stations using the 932–932.5 MHz band shall be limited to the maximum effective
                 isotropic radiated power of 50 watts (17 dBW). Stations using the 941–941.5 MHz band shall meet
                 the limits in the following table:

                           Antenna height above                                       EIRP
                      average mean sea level (meters)                         Watts             dBW
 Above 305                                                                            200             23
 Above 274 to 305                                                                     250             24
 Above 243 to 274                                                                     315             25
 Above 213 to 243                                                                     400             26
 Above 182 to 213                                                                     500             27
 Above 152 to 182                                                                     630             28
 Up to 152                                                                         1000               30

             Note to table in paragraph (d)(3): This information is from the Agreement between the Government
             of the United States of America and the Government of the United Mexican States Concerning the
             Allocation and Use of Frequency Bands by Terrestrial Non-Broadcasting Radiocommunication
             Services Along the Common Border, Protocol #6 Concerning the Allotment and Use of Channels in
             the 932–932.5 and 941–941.5 MHz Bands for Fixed Point-to-Multipoint Services Along the Common
             Border signed in 1994.

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47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                       47 CFR 101.1401
Fixed Microwave Services

[65 FR 17450, Apr. 3, 2000, as amended at 68 FR 4961, Jan. 31, 2003]

Subpart P—Multichannel Video Distribution and Data Service Rules for the 12.2–12.7 GHz Band

Source: 69 FR 31746, June 7, 2004, unless otherwise noted.

§ 101.1401 Service areas.
Multichannel Video Distribution and Data Service (MVDDS) is licensed on the basis of Designated Market Areas
(DMAs). The 214 DMA service areas are based on the 210 Designated Market Areas delineated by Nielsen Media
Research and published in its publication entitled U.S. Television Household Estimates, September 2002, plus four
FCC-defined DMA-like service areas.

     (a) Alaska—Balance of State (all geographic areas of Alaska not included in Nielsen's three DMAs for the
         state: Anchorage, Fairbanks, and Juneau);

     (b) Guam and the Northern Mariana Islands;

     (c) Puerto Rico and the United States Virgin Islands; and

     (d) American Samoa.

§ 101.1403 Broadcast carriage requirements.
MVDDS licensees are not required to provide all local television channels to subscribers within its area and thus are
not required to comply with the must-carry rules, nor the local signal carriage requirements of the Rural Local
Broadcast Signal Act. See Multichannel Video and Cable Television Service Rules, Subpart D (Carriage of Television
Broadcast Signals), 47 CFR 76.51–76.70. If an MVDDS licensee meets the statutory definition of Multiple Video
Programming Distributor (MVPD), the retransmission consent requirement of section 325(b)(1) of the
Communications Act of 1934, as amended (47 U.S.C. 325(b)(1)) shall apply to that MVDDS licensee. Any MVDDS
licensee that is an MVPD must obtain the prior express authority of a broadcast station before retransmitting that
station's signal, subject to the exceptions contained in section 325(b)(2) of the Communications Act of 1934, as
amended (47 U.S.C. 325(b)(2)). Network nonduplication, syndicated exclusivity, sports blackout, and leased access
rules shall not be imposed on MVDDS licensees.

§ 101.1405 Channeling plan.
Each license shall have one spectrum block of 500 megahertz per geographic area that can be divided into any size
channels. Disaggregation is not allowed.

§ 101.1407 Permissible operations for MVDDS.
MVDDS licensees must use spectrum in the 12.2–12.7 GHz band for any digital fixed non-broadcast service
(broadcast services are intended for reception of the general public and not on a subscribership basis) including
one-way direct-to-home/office wireless service. Mobile and aeronautical services are not authorized. Two-way
services may be provided by using other spectrum or media for the return or upstream path.

47 CFR 101.1407 (enhanced display)                                                                     page 185 of 196
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                                                                                                        47 CFR 101.1409
Fixed Microwave Services

§ 101.1409 Treatment of incumbent licensees.
Terrestrial private operational fixed point-to-point licensees in the 12.2–12.7 GHz band which were licensed prior to
MVDDS or NGSO FSS satellite stations are incumbent point-to-point stations and are not entitled to protection from
harmful interference caused by later MVDDS or NGSO FSS entrants in the 12.2–12.7 GHz band, except for public
safety stations which must be protected. MVDDS and NGSO FSS operators have the responsibility of resolving any
harmful interference problems that their operations may cause to these public safety incumbent point-to-point
operations in the 12.2–12.7 GHz band. Incumbent public safety terrestrial point-to-point licensees may only make
minor changes to their stations without losing this protection. This does not relieve current point-to-point licensees
of their obligation to protect BSS operations in the subject frequency band. All point-to-point applications, including
low-power operations, for new licenses, major amendments to pending applications, or major modifications to
existing licenses for the 12.2–12.7 GHz band are no longer accepted except for renewals and changes in
ownership. See § 1.929 of this chapter for definitions of major and minor changes.

§ 101.1411 Regulatory status and eligibility.
     (a) MVDDS licensees are permitted to provide one-way video programming and data services on a non-
         common carrier and/or on a common carrier basis. MVDDS is not required to be treated as a common
         carrier service unless it is providing non-Internet voice and data services through the public switched
         network.

     (b) MVDDS licensees in the 12.2–12.7 GHz band are subject to the requirements set forth in § 101.7.

     (c) Any entity, other than one precluded by §§ 101.7 and 101.1412, is eligible for authorization to provide
         MVDDS under this part. Authorization will be granted upon proper application filing in accordance with the
         Commission's rules.

§ 101.1412 MVDDS eligibility restrictions for cable operators.
     (a) Eligibility for MVDDS license. No cable operator, nor any entity owning an attributable interest in a cable
         operator, shall have an attributable interest in an MVDDS license if such cable operator's service area
         significantly overlaps the MVDDS license area, as “significantly overlaps” is defined in paragraph (e) of
         this section.

     (b) Definition of cable operator. For the purposes of paragraph (a) of this section, the term “cable operator”
         means a company that is franchised to provide cable service, as defined in 47 CFR 76.5(ff) of this chapter,
         in all or part of the MVDDS license area.

     (c) For the purpose of this section, the term “MVPD household” refers to a household that subscribes to one
         or more Multichannel Video Program Distributors (MVPDs), as defined in 47 CFR 76.1000(e) of this
         chapter.

     (d) Waiver of restriction. Upon completion of the initial award of an MVDDS license, a cable operator may
         petition for a waiver of the restriction on eligibility based upon a showing that changed circumstances or
         new evidence indicate that no significant likelihood of substantial competitive harm will result from the
         operator retaining an attributable interest in the MVDDS license.

     (e) Significant overlap with service area. For purposes of paragraph (a) of this section, significant overlap
         occurs when a cable operator's subscribers in the MVDDS license area make up thirty-five percent or more
         of the MVPD households in that MVDDS license area.

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47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                         47 CFR 101.1412(f)
Fixed Microwave Services

     (f) Definition of attributable interest. For purposes of paragraph (a) of this section, an entity shall be
         considered to have an attributable interest in a cable operator or MVDDS licensee pursuant to the
         following criteria:

           (1) A controlling interest shall constitute an attributable interest. Controlling interest means majority
               voting equity ownership, any general partnership interest, or any means of actual working control
               (including negative control) over the operation of the entity, in whatever manner exercised.

           (2) Any general partnership interest in a partnership;

           (3) Partnership and similar ownership interests (including limited partnership interests) amounting to 20
               percent or more of the total partnership interests, calculated according to both the percentage of
               equity paid in and the percentage of distribution of profits and losses;

           (4) Any stock interest amounting to 20 percent or more of the outstanding voting stock of an entity;

           (5) Any voting or non-voting stock interest, amounting to 20 percent or more of the total outstanding
               stock of an entity;

           (6) Stock interests held in trust that exceed the limit set forth in paragraph (f) of this section shall
               constitute an attributable interest of any person who holds or shares the power to vote such stock,
               of any person who has the sole power to sell such stock, and, in the case of stock held in trust, of
               any person who has the right to revoke the trust at will or to replace the trustee at will. If the trustee
               has a familial, personal, or extra-trust business relationship to the grantor or the beneficiary, the
               stock interests held in trust shall constitute an attributable interest of such grantor or beneficiary, as
               appropriate.

           (7) Debt and interests such as warrants and convertible debentures, options, or other interests (except
               non-voting stock) with rights of conversion to voting interests shall not constitute attributable
               interests unless and until conversion is effected.

           (8) An interest in a Limited Liability Company (LLC) or Registered Limited Liability Partnership (RLLP)
               amounting to 20 percent or more, shall constitute an attributable interest of each such limited
               partner.

           (9) Officers and directors of a cable operator, an MVDDS licensee, or an entity that controls such cable
               operator or MVDDS licensee, shall be considered to have an attributable interest in such cable
               operator or MVDDS licensee.

          (10) Ownership interests that are held indirectly by any party through one or more intervening
               corporations or other entities shall be determined by successive multiplication of the ownership
               percentages for each link in the vertical ownership chain and application of the relevant attribution
               benchmark to the resulting product, except that, if the ownership for any interest in any link in the
               chain exceeds 50 percent or represents actual control, it shall be treated as if it were a 100 percent
               interest.

          (11) Any person who manages the operations of a cable operator or an MVDDS licensee pursuant to a
               management agreement shall be considered to have an attributable interest in such cable operator
               or MVDDS licensee, if such person or its affiliate has authority to make decisions or otherwise
               engage in practices or activities that determine, or significantly influence:

                 (i)   The nature or types of services offered by such entity;

                 (ii) The terms upon which such services are offered; or

47 CFR 101.1412(f)(11)(ii) (enhanced display)                                                              page 187 of 196
47 CFR Part 101 (up to date as of 2/20/2024)
                                                                                                  47 CFR 101.1412(f)(11)(iii)
Fixed Microwave Services

                (iii) The prices charged for such services.

          (12) Any person or its affiliate who enters into a joint marketing arrangement with a cable operator, an
               MVDDS licensee, or an affiliate of such entity, shall be considered to have an attributable interest in
               such cable operator, MVDDS licensee, or affiliate, if such person or its affiliate has authority to make
               decisions or otherwise engage in practices or activities that determine:

                 (i)   The nature or types of services offered by such entity;

                 (ii) The terms upon which such services are offered; or

                (iii) The prices charged for such services.

     (g) Divestiture. Any cable operator, or any entity owning an attributable interest in a cable operator, that would
         otherwise be barred from acquiring an attributable interest in an MVDDS license by the eligibility
         restriction in paragraph (a) of this section, may be a party to an MVDDS application (i.e., have an
         attributable interest in the applicant), and such applicant will be eligible for an MVDDS license, pursuant to
         the divestiture procedures set forth in paragraphs (g)(1) through (g)(6) of this section.

           (1) Divestiture shall be limited to the following prescribed means:

                 (i)   An MVDDS applicant holding an attributable interest in a cable operator may divest such
                       interest in the cable company.

                 (ii) Other MVDDS applicants disqualified under paragraph (a) of this section, will be permitted to:

                       (A) Partition and divest that portion of the existing service area that causes it to exceed the
                           overlap restriction in paragraph (a) of this section, subject to applicable regulations of
                           state and local governments; or

                       (B) Partition and divest that portion of the MVDDS geographic service area that exceeds the
                           overlap restriction in paragraph (a) of this section.

                (iii) Divestiture may be to an interim trustee if a buyer has not been secured in the required period of
                      time, as long as the MVDDS applicant has no interest in or control of the trustee and the trustee
                      may dispose of the license as it sees fit.

           (2) The MVDDS applicant shall certify as an exhibit to its short form application that it and all parties to
               the application will come into compliance with paragraph (a) of this section.

           (3) If such MVDDS applicant is a successful bidder in an auction, it must submit with its long-form
               application a signed statement describing its efforts to date and future plans to come into
               compliance with the eligibility restrictions in paragraph (a) of this section.

           (4) If such an MVDDS applicant is otherwise qualified, its application will be granted subject to a
               condition that the applicant shall come into compliance with the eligibility restrictions in paragraph
               (a) within ninety (90) days of final grant of such MVDDS license.

           (5) An MVDDS applicant will be considered to have come into compliance with paragraph (a) of this
               section if:

                 (i)   In the case of the divestiture of a portion of an MVDDS license service area, it has successfully
                       completed the assignment or transfer of control of the requisite portion of the MVDDS
                       geographic service area.

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                 (ii) In all other cases, it has submitted to the Commission a signed certification that it has come
                      into compliance with paragraph (a) of this section by the following means, identified in such
                      certification:

                      (A) By divestiture of a disqualifying interest in a cable operator, identified in terms of the
                          interest owned, the owner of such interest (and, if such owner is not the applicant itself,
                          the relationship of the owner to the applicant), the name of the party to whom such
                          interest has been divested, and the date such divestiture was executed; or

                      (B) By divestiture of the requisite portion of the cable operator's existing service area,
                          identified in terms of the name of the party to whom such interest has been divested, the
                          date such divestiture was executed, the name of any regulatory agency that must approve
                          such divestiture, and the date on which an application was filed for this purpose with the
                          regulatory agency.

           (6) If no such certification or application is tendered to the Commission within ninety (90) days of final
               grant of the initial license, the Commission may cancel or rescind the license automatically, shall
               retain all monies paid to the Commission, and, based on the facts presented, shall take any other
               action it may deem appropriate.

           Note to § 101.1412: Waivers of § 101.1412(f) may be granted upon an affirmative showing:
           (a) That the interest holder has less than a fifty percent voting interest in the licensee and there is
           an unaffiliated single holder of a fifty percent or greater voting interest;

           (b) That the interest holder is not likely to affect the local market in an anticompetitive manner;

           (c) That the interest holder is not involved in the operations of the licensee and does not have the
           ability to influence the licensee on a regular basis; and

           (d) That grant of a waiver is in the public interest because the benefits to the public of common
           ownership outweigh any potential anticompetitive harm to the market.

[69 FR 31746, June 7, 2004, as amended at 69 FR 59146, Oct. 4, 2004]

§ 101.1413 License term and construction requirements.
     (a) The MVDDS license term is ten years, beginning on the date of the initial authorization grant.

     (b) As a construction requirement, MVDDS licensees must make a showing of substantial service at the end
         of five years into the license period and ten years into the license period. The substantial service
         requirement is defined as a service that is sound, favorable, and substantially above a level of mediocre
         service which might minimally warrant renewal. At the end of five years into the license term and ten
         years into the license period, the Commission will consider factors such as:

           (1) Whether the licensee's operations service niche markets or focus on serving populations outside of
               areas serviced by other MVDDS licensees;

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           (2) Whether the licensee's operations serve populations with limited access to telecommunications
               services; and

           (3) A demonstration of service to a significant portion of the population or land area of the licensed
               area.

     (c) The renewal application of an MVDDS licensee is governed by § 1.949 of this chapter.

[69 FR 31746, June 7, 2004, as amended at 82 FR 41549, Sept. 1, 2017]

§ 101.1415 Partitioning and disaggregation.
     (a) MVDDS licensees are permitted to partition licensed geographic areas along county borders (Parishes in
         Louisiana or Territories in Alaska). Disaggregation will not be permitted by MVDDS licensees in the
         12.2–12.7 GHz band. “Partitioning” is the assignment of geographic portions of a license along
         geopolitical or other boundaries. “Disaggregation” is the assignment of discrete portions or “blocks” of
         spectrum licensed to a geographic licensee or qualifying entity.

     (b) Eligibility.

           (1) Parties seeking approval for partitioning shall request from the Commission an authorization for
               partial assignment of a license pursuant to § 1.948 of this chapter.

           (2) MVDDS licensees may apply to the Commission to partition their licensed geographic service areas
               to eligible entities and are free to partition their licensed spectrum at any time following the grant of
               a license.

           (3) Any existing frequency coordination agreements shall convey with the assignment of the geographic
               area or spectrum, and shall remain in effect for the term of the agreement unless new agreements
               are reached.

     (c) Technical standards.

           (1) Partitioning. In the case of partitioning, applicants and licensees must file FCC Form 603 pursuant to
               § 1.948 of this chapter and list the partitioned service area on a schedule to the application.

           (2) The geographic coordinates must be specified in degrees, minutes, and seconds to the nearest
               second of latitude and longitude and must be based upon the 1983 North American Datum (NAD83).

     (d) Unjust enrichment. 12 GHz licensees that received a bidding credit and partition their licenses to entities
         not meeting the eligibility standards for such a bidding credit, will be subject to the provisions concerning
         unjust enrichment as set forth in § 1.2111 of this chapter.

     (e) License term. The MVDDS license term is ten years, beginning on the date of the initial authorization
         grant. The license term for a partitioned license area shall be the remainder of the original licensee's
         license term as provided for in § 101.1413.

[69 FR 31746, June 7, 2004, as amended at 82 FR 41549, Sept. 1, 2017]

§ 101.1417 Annual report.
Each MVDDS licensee shall file with the Broadband Division of the Wireless Telecommunications Bureau of the
Commission two copies of a report by March 1 of each year for the preceding calendar year. This report must
include the following:
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     (a) Name and address of licensee;

     (b) Station(s) call letters and primary geographic service area(s); and

     (c) The following statistical information for the licensee's station (and each channel thereof):

           (1) The total number of separate subscribers served during the calendar year;

           (2) The total hours of transmission service rendered during the calendar year to all subscribers;

           (3) The total hours of transmission service rendered during the calendar year involving the transmission
               of local broadcast signals; and

           (4) A list of each period of time during the calendar year in which the station rendered no service as
               authorized, if the time period was a consecutive period longer than 48 hours.

§ 101.1421 Coordination of adjacent area MVDDS stations.
     (a) MVDDS licensees in the 12.2–12.7 GHz band are required to develop sharing and protection agreements
         based on the design and architecture of their systems, in order to ensure that no harmful interference
         occurs between adjacent geographical area licensees. MVDDS licensees shall:

           (1) Engineer systems to be reasonably compatible with adjacent and co-channel operations in the
               adjacent areas on all its frequencies; and

           (2) Cooperate fully and in good faith to resolve interference and transmission problems that are present
               on adjacent and co-channel operations in adjacent areas.

     (b) Harmful interference to public safety stations, co-channel MVDDS stations operating in adjacent
         geographic areas, and stations operating on adjacent channels to MVDDS stations is prohibited. In areas
         where the DMAs are in close proximity, careful consideration should be given to power requirements and
         to the location, height, and radiation pattern of the transmitting and receiving antennas. Licensees are
         expected to cooperate fully in attempting to resolve problems of potential interference before bringing the
         matter to the attention of the Commission.

     (c) Licensees shall coordinate their facilities whenever the facilities have optical line-of-sight into other
         licensees' areas or are within the same geographic area. Licensees are encouraged to develop operational
         agreements with relevant licensees in the adjacent geographic areas. Incumbent public safety POFS
         licensee(s) shall retain exclusive rights to its channel(s) within the relevant geographical areas and must
         be protected in accordance with the procedures in § 101.103. A list of public safety incumbents is
         attached as Appendix I to the Memorandum Opinion and Order and Second Report and Order, Docket
         98–206, released May 23, 2002. Please check with the Commission for any updates to that list.

§ 101.1423 Canadian and Mexican coordination.
Pursuant to § 2.301 of this chapter, MVDDS systems in the United States within 56 km (35 miles) of the Canadian
and Mexican border will be granted conditional licenses, until final international agreements are approved. These
systems may not cause harmful interference to stations in Canada or Mexico. MVDDS stations must comply with
the procedures outlined under §§ 101.147(p) and 1.928(f)(1) and (f)(2) of this chapter until final international
agreements concerning MVDDS are signed. Section 1.928(f) of this chapter states that transmitting antennas can
be located as close as five miles (eight kilometers) of the border if they point within a sector of 160 degrees away
from the border, and as close as thirty-five miles (fifty-six km) of the border if they point within a sector of 200
degrees toward the border without coordination with Canada. MVDDS licensees shall apply this method near the
Canadian and Mexican borders. No stations are allowed within 5 miles of the borders.

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                                                                                                           47 CFR 101.1425
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§ 101.1425 RF exposure.
MVDDS stations in the 12.2–12.7 GHz frequency band shall ensure compliance with the Commission's radio
frequency exposure requirements in § 1.1307(b) of this chapter. An Environmental Assessment may be required if
RF radiation from the proposed facilities would, in combination with radiation from other sources, cause RF power
density or field strength in an accessible area to exceed the applicable limits specified in § 1.1310 of this chapter.

[85 FR 18151, Apr. 1, 2020]

§ 101.1427 MVDDS licenses subject to competitive bidding.
Mutually exclusive initial applications for MVDDS licenses in the 12.2–12.7 GHz band are subject to competitive
bidding. The general competitive bidding procedures set forth in part 1, subpart Q of this chapter will apply unless
otherwise provided in this subpart.

§ 101.1429 Designated entities.
     (a) Eligibility for small business provisions.

           (1) A very small business is an entity that, together with its controlling interests and affiliates, has
               average annual gross revenues not exceeding $3 million for the preceding three years.

           (2) A small business is an entity that, together with its controlling interests and affiliates, has average
               annual gross revenues not exceeding $15 million for the preceding three years.

           (3) An entrepreneur is an entity that, together with its controlling interests and affiliates, has average
               annual gross revenues not exceeding $40 million for the preceding three years.

     (b) Bidding credits. A winning bidder that qualifies as a very small business, as defined in this section, or a
         consortium of very small businesses may use the bidding credit specified in § 1.2110(f)(2)(i) of this
         chapter. A winning bidder that qualifies as a small business, as defined in this section, or a consortium of
         small businesses may use the bidding credit specified in § 1.2110(f)(2)(ii) of this chapter. A winning
         bidder that qualifies as an entrepreneur, as defined in this section, or a consortium of entrepreneurs may
         use the bidding credit specified in § 1.2110(f)(2)(iii) of this chapter.

§ 101.1440 MVDDS protection of DBS.
     (a) An MVDDS licensee shall not begin operation unless it can ensure that the EPFD from its transmitting
         antenna at all DBS customers of record locations is below the values listed for the appropriate region in §
         101.105(a)(4)(ii). Alternatively, MVDDS licensees may obtain a signed written agreement from DBS
         customers of record stating that they are aware of and agree to their DBS system receiving MVDDS signal
         levels in excess of the appropriate EPFD limits specified in § 101.105(a)(4)(ii). DBS customers of record
         are those who had their DBS receive antennas installed prior to or within the 30 day period after
         notification to the DBS operator by the MVDDS licensee of the proposed MVDDS transmitting antenna
         site.

     (b) MVDDS licensees are required to conduct a survey of the area around its proposed transmitting antenna
         site to determine the location of all DBS customers of record that may potentially be affected by the
         introduction of its MVDDS service. The MVDDS licensee must assess whether the signal levels from its
         system, under its deployment plans, would exceed the appropriate EPFD levels in § 101.105(a)(4)(ii) at
         any DBS customer of record location. Using EPFD calculations, terrain and building structure
         characteristics, and the survey results, an MVDDS licensee must make a determination of whether its

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           signal level(s) will exceed the EPFD limit at any DBS customer of record sites. To assist in making this
           determination, the MVDDS provider can use the EPFD contour model developed by the Commission and
           described in Appendix J of the Memorandum Opinion and Order and Second Report and Order, ET Docket
           98–206 or on the OET website at http://www.fcc.gov/oet/dockets/et98-206.

     (c) If the MVDDS licensee determines that its signal level will exceed the EPFD limit at any DBS customer site,
         it shall take whatever steps are necessary, up to and including finding a new transmit site, to ensure that
         the EPFD limit will not be exceeded at any DBS customer location.

     (d) Coordination between MVDDS and DBS licensees.

           (1) At least 90 days prior to the planned date of MVDDS commencement of operations, the MVDDS
               licensee shall provide the following information to the DBS licensee(s):

                 (i)   Geographic location (including NAD 83 coordinates) of its proposed station location;

                 (ii) Maximum EIRP of each transmitting antenna system;

                (iii) Height above ground level for each transmitting antenna;

                (iv) Antenna type along with main beam azimuth and altitude orientation information, and
                     description of the antenna radiation pattern;

                 (v) Description of the proposed service area; and

                (vi) Survey results along with a technical description of how it determined compliance with the
                     appropriate EPFD level at all DBS subscriber locations.

           (2) No later than forty-five days after receipt of the MVDDS system information in paragraph (d)(1) of
               this section, the DBS licensee(s) shall provide the MVDDS licensee with a list of only those new DBS
               customer locations that have been installed in the 30-day period following the MVDDS notification
               and that the DBS licensee believes may receive harmful interference or where the prescribed EPFD
               limits may be exceeded. In addition, the DBS licensee(s) could indicate agreement with the MVDDS
               licensee's technical assessment, or identify DBS customer locations that the MVDDS licensee failed
               to consider or DBS customer locations where they believe the MVDDS licensee erred in its analysis
               and could exceed the prescribed EPFD limit.

           (3) Prior to commencement of operation, the MVDDS licensee must take into account any new DBS
               customers or other relevant information provided by DBS licensees in response to the notification in
               paragraph (d)(1) of this section.

     (e) Beginning thirty days after the DBS licensees are notified of a potential MVDDS site in paragraph (d)(1) of
         this section, the DBS licensees are responsible for providing information they deem necessary for those
         entities who install all future DBS receive antennas on its system to take into account the presence of
         MVDDS operations so that these DBS receive antennas can be located in such a way as to avoid the
         MVDDS signal. These later installed DBS receive antennas shall have no further rights of complaint
         against the notified MVDDS transmitting antenna(s).

     (f) In the event of either an increase in the EPFD contour in any direction or a major modification as defined in
         § 1.929 of this chapter, such as the addition of an antenna, to an MVDDS station, the procedures of
         paragraphs (d) and (e) of this section and rights of complaint begin anew. Exceptions to this are renewal,
         transfer of control, and assignment of license applications.

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     (g) Interference complaints. The MVDDS licensee must satisfy all complaints of interference to DBS
         customers of record which are received during a one year period after commencement of operation of the
         transmitting facility. Specifically, the MVDDS licensee must correct interference caused to a DBS
         customer of record or cease operation if it is demonstrated that the DBS customer is receiving harmful
         interference from the MVDDS system or that the MVDDS signal exceeds the permitted EPFD level at the
         DBS customer location.

Subpart Q—Service and Technical Rules for the 70/80/90 GHz Bands

Source: 69 FR 3267, Jan. 23, 2004, unless otherwise noted.

§ 101.1501 Service areas.
The 70/80/90 GHz bands are licensed on the basis of non-exclusive nationwide licenses. There is no limit to the
number of non-exclusive nationwide licenses that may be granted for these bands, and these licenses will serve as
a prerequisite for registering individual links.

§ 101.1505 Segmentation plan.
     (a) An entity may request any portion of the 71–76 GHz and 81–86 GHz bands, up to 5 gigahertz in each
         segment for a total of 10 gigahertz. Licensees are also permitted to register smaller segments.

     (b) The 92–95 GHz band is divided into three segments: 92.0–94.0 GHz and 94.1–95.0 GHz for non-
         government and government users, and 94.0–94.1 GHz for Federal Government use. Pairing is allowed
         and segments may be aggregated without limit. The bands in paragraph (a) of this section can be
         included for a possible 12.9 gigahertz maximum aggregation. Licensees are also permitted to register
         smaller segments than provided here.

[70 FR 29998, May 25, 2005]

§ 101.1507 Permissible operations.
Licensees may use the 70 GHz, 80 GHz and 90 GHz bands for any point-to-point, non-broadcast service. The
segments may be unpaired or paired, but paring will be permitted only in a standardized manner (e.g., 71–72.25
GHz may be paired only with 81–82.25 GHz, and so on). The segments may be aggregated without limit.

§ 101.1511 Regulatory status and eligibility.
     (a) Licensees are permitted to provide services on a non-common carrier and/or on a common carrier basis.

     (b) Licensees are subject to the requirements set forth in § 101.7.

     (c) Any entity, other than one precluded by § 101.7, is eligible for authorization to provide service under this
         part. Authorization will be granted upon proper application filing and link coordination in accordance with
         the Commission's rules.

§ 101.1513 License term.
The license term is ten years, beginning on the date of the initial authorization (nationwide license) grant.
Registering links will not change the overall renewal period of the license.

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                                                                                                      47 CFR 101.1523
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[70 FR 29998, May 25, 2005]

§ 101.1523 Sharing and coordination among non-government licensees and between non-
government and government services.
     (a) Registration of each link in the 71–76 GHz, 81–86 GHz, and 92–95 GHz bands will be in the Universal
         Licensing System until the Wireless Telecommunications Bureau announces by public notice the
         implementation of a third-party database.

     (b) The licensee or applicant shall:

           (1) Complete coordination with Federal Government links according to the coordination standards and
               procedures adopted in Report and Order, FCC 03–248, and as further detailed in subsequent
               implementation public notices issued consistent with that order;

           (2) Provide an electronic copy of an interference analysis to the third-party database manager which
               demonstrates that the potential for harmful interference to or from all previously registered non-
               government links has been analyzed according to the standards of section 101.105 and generally
               accepted good engineering practice, and that the proposed non-government link will neither cause
               harmful interference to, nor receive harmful interference from, any previously registered non-
               government link; and

           (3) Provide upon request any information related to the interference analysis and the corresponding link.
               The third-party database managers shall receive and retain the interference analyses electronically
               and make them available to the public. Protection of individual links against harmful interference
               from other links shall be granted to first-in-time registered links. Successful completion of
               coordination via the NTIA automated mechanism shall constitute successful non-Federal
               Government to Federal Government coordination for that individual link.

     (c) In addition, the following types of non-Federal Government links require the filing with the Commission an
         FCC Form 601 for each link for the purpose of coordination and registration, in addition to registering
         each link in the third-party database:

           (1) Facilities requiring the submission of an Environmental Assessment,

           (2) Facilities requiring international coordination, and

           (3) Operation in quiet zones.

     (d) The Commission believes the licensee is in the best position to determine the nature of its operations and
         whether those operations impact these settings, and is required to submit to a database manager, as part
         of the registration package, documentation that an FCC Form 601 has been filed.

[69 FR 3267, Jan. 23, 2004, as amended at 70 FR 29998, May 25, 2005]

§ 101.1525 RF safety.
Licensees in the 70–80–90 GHz bands are subject to the exposure requirements found in §§ 1.1307(b), 2.1091 and
2.1093 of this chapter, and will use the parameters found therein.

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                                                                                                     47 CFR 101.1527
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§ 101.1527 Canadian and Mexican coordination.
     (a) A licensee of bands 71.0–76.0, 81.0–86.0, 92–94 GHz and 94.1–95 GHz must comply with § 1.928(f) of
         this chapter, which pertains to coordination with Canada.

     (b) A licensee of bands 71.0–76.0, 81.0–86.0, 92–94 GHz and 94.1–95 GHz must coordinate with Mexico in
         the following situations:

           (1) For a station the antenna of which looks within the 200 deg. sector toward the Mexico-United States
               borders, that area in each country within 35 miles of the borders; and

           (2) For a station the antenna of which looks within the 160 deg. sector away from the Canada-United
               States borders, that area in each country within 5 miles of the borders.

47 CFR 101.1527(b)(2) (enhanced display)                                                             page 196 of 196