Source: https://www.federalregister.gov/articles/2006/12/06/06-9541/aviation-communications
Timestamp: 2015-05-22 14:36:11
Document Index: 397788845

Matched Legal Cases: ['art 87', 'art 87', 'art 87', 'art 87', 'art 87', 'art 87', 'art 87', 'art 87', 'art 87', 'arts 2', 'art 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87']

Federal Register | Aviation Communications
Publication Date: Wednesday, December 06, 2006
Dates: Effective February 5, 2007.
Effective Date: 02/05/2007
-70680 (10 pages)
FCC 06-148
Document Number: 06-9541
Shorter URL: https://federalregister.gov/a/06-9541 Related Topics
In this document, the Federal Communications Commission (Commission or FCC) addresses a number of important issues pertaining to the Aviation Radio Services, amending its frequency allocation and radio treaty matters and aviation services rules to ensure that they remain up-to-date and continue to further the Commission's goals of accommodating new technologies, facilitating the efficient and effective use of the aeronautical spectrum, avoiding unnecessary regulation, and, above all, enhancing the safety of flight. In many cases these rule amendments also promote public safety generally and improve our homeland security.
UAT—Universal Access Transceiver
Effective February 5, 2007.
Jeffrey Tobias, Jeff.Tobias@FCC.gov, Mobility Division, Wireless Telecommunications Bureau, (202) 418-1617, or TTY (202) 418-7233.
This is a summary of the Federal Communications Commission's Second Report and Order in WT Docket No. 01-289 (Second Report and Order), FCC 06-148, adopted on October 4, 2006, and released on October 10, 2006. The full text of this document is available for inspection and copying during normal business hours in the FCC Reference Center, 445 12th Street, SW., Washington, DC 20554. The complete text may be purchased from the Commission's copy contractor, Best Copy and Printing, Inc., 445 12th Street, SW., Room CY-B402, Washington, DC 20554. The full text may also be downloaded at: http://www.fcc.gov. Alternative formats are available to persons with disabilities by sending an e-mail to fcc504@fcc.gov or by calling the Consumer Governmental Affairs Bureau at 202-418-0530 (voice), 202-418-0432 (tty).
1. The Second Report and Order addresses issues raised in the Further Notice of Proposed Rule Making (FNPRM) in this WT Docket No. 01-289 proceeding. The Commission takes the following significant actions in the Second Report and Order: (i) Authorizes the use of Universal Access Transceiver (UAT) technology on the frequency 978 MHz; (ii) declines to adopt any immediate changes to the part 87 rules governing the Aeronautical Mobile Satellite (Route) Service (AMS(R)S) with respect to technical flexibility, the licensing of AMS(R)S in additional frequency bands under part 87, or priority and preemptive access for AMS(R)S communications vis-vis public correspondence communications and other non-safety-related Mobile Satellite Service (MSS) communications; (iii) removes all of the former Civil Air Patrol (CAP) channels from the table of frequencies available for assignment under part 87; (iv) removes allocations for radionavigation in the 14000-14400 MHz band; (v) streamlines the listing of high frequency (HF) channels in the table of frequencies available for assignment under part 87; (vi) provides the Federal Aviation Administration (FAA) with greater flexibility in the use of air traffic control (ATC) frequencies; (vii) declines to adopt rules that would authorize a new type of emergency locator transmitter (ELT) designed to operate on the frequency 121.5 MHz; (viii) adopts rules permitting use of an alternative station identification format by aircraft that are being moved by maintenance personnel from one airport location to another; (ix) eliminates the rule authorizing the assignment of FCC control numbers to ultralight aircraft for station identification; and (x) declines at present to make any rule changes pertaining to the Plan for the Security Control of Air Traffic and Air Navigation Aids (SCATANA).
I. Procedural Matters Back to Top
2. The Second Report and Order does not contain any new or modified information collection requirements subject to the Paperwork Reduction Act of 1995 (PRA), Public Law 104-13. In addition, therefore, it does not contain any new or modified “information collection burden for small business concerns with fewer than 25 employees,” pursuant to the Small Business Paperwork Relief Act of 2002, Public Law 107-198, see 44 U.S.C. 3506(c)(4).
3. The Commission will send a copy of this Second Report and Order in a report to Congress and the Government Accountability Office pursuant to the Congressional Review Act, see 5 U.S.C. 801(a)(1)(A).
4. As required by the Regulatory Flexibility Act of 1980, as amended (RFA), an Initial Regulatory Flexibility Analysis (IRFA) was incorporated in the FNPRM in this proceeding. The Commission sought written public comment on the proposals in the FNPRM, including comment on the IRFA. This present Final Regulatory Flexibility Analysis (FRFA) conforms to the RFA.
5. The rules adopted in the Second Report and Order are intended to ensure that the Commission's part 87 rules governing the Aviation Radio Service remain up-to-date and continue to further the Commission's goals of accommodating new technologies, facilitating the efficient and effective use of the aeronautical spectrum, avoiding unnecessary regulation, and, above all, enhancing the safety of flight. Specifically, in the Second Report and Order the Commission (a) authorizes the use of UAT technology on the frequency 978 MHz; (b) removes all of the former CAP channels from the table of frequencies available for assignment under part 87; (c) removes allocations for radionavigation in the 14000-14400 MHz band; (d) streamlines the listing of HF channels in the table of frequencies available for assignment under part 87; (e) provides the FAA with greater flexibility in the use of ATC frequencies; (f) declines to adopt rules that would authorize a new type of ELT designed to operate on the frequency 121.5 MHz; (g) codifies the terms of a waiver permitting use of an alternative station identification format by aircraft that are being moved by maintenance personnel from one airport location to another; (h) eliminates the rule authorizing the assignment of FCC control numbers to ultralight aircraft for station identification; and (i) declines at present to make any rule changes pertaining to the Plan for the Security Control of Air Traffic and Air Navigation Aids (SCATANA).
6. No comments were submitted specifically in response to the IRFA. Nonetheless, we have considered the potential economic impact on small entities of the rules discussed in the IRFA, and we have considered alternatives that would reduce the potential economic impact on small entities of the rules enacted herein.
7. The RFA directs agencies to provide a description of and, where feasible, an estimate of the number of small entities that may be affected by the rules adopted herein. The RFA defines the term “small entity” as having the same meaning as the terms “small business,” “small organization,” and “small governmental jurisdiction.” In addition, the term “small business” has the same meaning as the term “small business concern” under the Small Business Act. A small business concern is one which: (1) Is independently owned and operated; (2) is not dominant in its field of operation; and (3) satisfies any additional criteria established by the Small Business Administration (SBA).
8. Small businesses in the aviation and marine radio services use a marine very high frequency (VHF), medium frequency (MF), or high frequency (HF) radio, any type of emergency position indicating radio beacon (EPIRB) and/or radar, an aircraft radio, and/or any type of emergency locator transmitter (ELT). The Commission has not developed a definition of small entities specifically applicable to these small businesses. For purposes of this FRFA, therefore, the applicable definition of small entity is the definition under the SBA rules applicable to wireless service providers. The SBA has developed a small business size standard for wireless firms within the two broad economic census categories of “Paging” and “Cellular and Other Wireless Telecommunications.” Under both categories, the SBA deems a wireless business to be small if it has 1,500 or fewer employees. For the census category of Paging, Census Bureau data for 2002 show that there were 807 firms in this category that operated for the entire year. Of this total, 804 firms had employment of 999 or fewer employees, and three firms had employment of 1,000 employees or more. Thus, under this category and associated small business size standard, the majority of firms can be considered small. For the census category of Cellular and Other Wireless Telecommunications, Census Bureau data for 2002 show that there were 1,397 firms in this category that operated for the entire year. Of this total, 1,378 firms had employment of 999 or fewer employees, and 19 firms had employment of 1,000 employees or more. Thus, under this second category and size standard, the majority of firms can, again, be considered small.
9. Some of the rules adopted herein may also affect small businesses that manufacture aviation radio equipment. The Commission has not developed a definition of small entities applicable to aviation radio equipment manufacturers. Therefore, the applicable definition is that for Radio and Television Broadcasting and Wireless Communications Equipment Manufacturers. The Census Bureau defines this category as follows: “This industry comprises establishments primarily engaged in manufacturing radio and television broadcast and wireless communications equipment. Examples of products made by these establishments are: Transmitting and receiving antennas, cable television equipment, GPS equipment, pagers, cellular phones, mobile communications equipment, and radio and television studio and broadcasting equipment.” The SBA has developed a small business size standard for Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, which is: all such firms having 750 or fewer employees. According to Census Bureau data for 2002, there were a total of 1,041 establishments in this category that operated for the entire year. Of this total, 1,010 had employment of under 500, and an additional 13 had employment of 500 to 999. Thus, under this size standard, the majority of firms can be considered small.
10. The Second Report and Order does not impose any additional reporting, recordkeeping, or other compliance requirements on small entities. The rule amendments adopted in the Second Report and Order generally either relieve licensees of pre-existing technical constraints or simply streamline and update the Commission's rules in a manner that will have no impact at all on regulatory compliance costs.
11. The RFA requires an agency to describe any significant alternatives that it has considered in developing its approach, which may include the following four alternatives (among others): “(1) The establishment of differing compliance or reporting requirements or timetables that take into account the resources available to small entities; (2) the clarification, consolidation, or simplification of compliance and reporting requirements under the rule for such small entities; (3) the use of performance rather than design standards; and (4) an exemption from coverage of the rule, or any part thereof, for such small entities.”
12. As explained in section C of this FRFA, above, the Second Report and Order does not impose any additional reporting, recordkeeping, or other compliance requirements on small entities. In the Second Report and Order, the Commission discusses the possibility of further relaxing AMS(R)S technical requirements to accommodate non-Inmarsat satellite systems, and the Commission did consider, as one alternative, immediately amending the part 87 rules for that purpose. The Commission ultimately decided, however, that it would be prudent to seek further comment on this question, especially in light of the fact that the International Civil Aviation Organization (ICAO) has not yet adopted Standards and Recommended Practices for such AMS(R)S operations. Similarly, the Commission could have adopted part 87 licensing rules for AMS(R)S in the 1.6 GHz, 2 GHz, and 5 GHz frequency bands, subject to a requirement that satellite system operators accord priority and preemptive access to AMS(R)S communications over other types of communications. The Commission deferred a final decision on this matter, primarily to acquire additional information regarding whether such a priority and preemptive access requirement is truly necessary, and regarding the burden such a requirement may impose on MSS/AMS(R)S licensees.
13. The Commission will send a copy of this Second Report and Order in WT Docket No. 01-289, including the Final Regulatory Flexibility Analysis, in a report to be sent to Congress pursuant to the Congressional Review Act. In addition, the Commission will send a copy of the Second Report and Order, including the Final Regulatory Flexibility Analysis, to the Chief Counsel for Advocacy of the SBA. A copy of the Second Report and Order and the Final Regulatory Flexibility Analysis (or summaries thereof) will also be published in the Federal Register.
Communications equipment; Disaster assistance; Imports; Radio; Reporting and recordkeeping requirements; Telecommunications; Television; Wiretapping and electronic surveillance
Air transportation; Civil defense; Communications equipment; Defense communications; Radio; Reporting and recordkeeping requirements; Weather
For the reasons discussed in the preamble, the Federal Communications Commission amends 47 CFR parts 2 and 87 as follows:
2.Section 2.106, the Table of Frequency Allocations, is amended as follows: a. Revise pages 29 and 46.
b. In the list of United States (US) Footnotes, remove footnote US292 and add footnote US400.
US400The use of the center frequency 978 MHz may be authorized to Universal Access Transceiver (UAT) stations on a primary basis for the specific purpose of transmitting datalink information in support of the Automatic Dependent Surveillance—Broadcast (ADS-B) Service, Traffic Information Services—Broadcast (TIS-B), and Flight Information—Broadcast (FIS-B).
3.The authority citation for part 87 continues to read as follows: Authority:
4.Amend § 87.5 by adding entries in alphabetical order for “Automatic Dependent Surveillance—Broadcast (ADS-B) Service,” “Traffic Information Services—Broadcast (TIS-B) Service” and “Universal Access Transceiver (UAT)” to read as follows: § 87.5 Definitions.
Automatic Dependent Surveillance—Broadcast (ADS-B) Service. Broadcast transmissions from aircraft, supporting aircraft-to-aircraft or aircraft-to-ground surveillance applications, including position reports, velocity vector, intent and other relevant information about the aircraft.
Traffic Information Services—Broadcast (TIS-B). Traffic information broadcasts derived from ground-based radar systems.
Universal Access Transceiver (UAT). A radio datalink system authorized to operate on the frequency 978 MHz to support Automatic Dependent Surveillance—Broadcast (ADS-B) Service, Traffic Information Services—Broadcast (TIS-B) and Flight Information Service—Broadcast (FIS-B).
5.Amend § 87.107 by removing paragraph (a)(2), redesignating paragraphs (a)(3) through (a)(5) as (a)(2) through (a)(4), and revising newly designated paragraph (a)(2) to read as follows: § 87.107 Station identification.
(2) The type of aircraft followed by the characters of the registration marking (“N” number) of the aircraft, omitting the prefix letter “N.” When communication is initiated by a ground station, an aircraft station may use the type of aircraft followed by the last three characters of the registration marking. Notwithstanding any other provision of this section, an aircraft being moved by maintenance personnel from one location in an airport to another location in that airport may be identified by a station identification consisting of the name of the company owning or operating the aircraft, followed by the word “Maintenance” and additional alphanumeric characters of the licensee's choosing.
6.Amend § 87.137 by amending the table in paragraph (a) to add an entry for F1D and footnote 18 to read as follows: § 87.137 Types of emission.
Above 50 MHz16
18Authorized only for Universal Access Transceiver use at 978 MHz.
F1D18
1M30F1D
7.Amend § 87.139 by adding paragraph (l) to read as follows: § 87.139 Emission limitations.
(l)(1) For Universal Access Transceiver transmitters, the average emissions measured in a 100 kHz bandwidth must be attenuated below the maximum emission level contained within the authorized bandwidth by at least:
+/−1.0
+/−2.25
+/−3.25
(2) Universal Access Transceiver transmitters with an output power of 5 Watts or more must limit their emissions by at least 43 + 10 log (P) dB on any frequency removed from the assigned frequency by more than 250% of the authorized bandwidth. Those emissions shall be measured with a bandwidth of 100 kHz. P in the above equation is the average transmitter power measured within the occupied bandwidth in Watts.
(3) Universal Access Transceiver transmitters with less than 5 Watts of output power must limit their emissions by at least 40 dB relative to the carrier peak on any frequency removed from the assigned frequency by more than 250% of the authorized bandwidth. Those emissions shall be measured with a bandwidth of 100 kHz.
8.Amend § 87.141 by adding paragraph (k) to read as follows:
§ 87.141 Modulation requirements.
(k) Universal Access Transceiver transmitters must use F1D modulation without phase discontinuities.
9.Amend § 87.171 by adding in alphabetical order the symbol and class of station “UAT—Universal Access Transceiver” to read as follows: § 87.171 Class of station symbols.
UAT—Universal Access Transceiver Back to Top
10.Amend § 87.173 by revising the table in paragraph (b) to read as follows: § 87.173 Frequencies.
(b) Frequency table: Frequency or frequency band
LORAN “C”.
Radiobeacons.
200-285 kHz
325-405 kHz
410.0 kHz
International direction-finding for use outside of United States.
457.0 kHz
Working frequency for aircraft on over-water flights.
500.0 kHz
International calling and distress frequency for ships and aircraft on over-water flights.
510-535 kHz
International distress and calling.
2648.0 kHz
Alaska station.
2850.0-3025.0 kHz
MA, FAE
International HF.
2851.0 kHz
MA, FAE, FAT
International HF; Flight Test.
2866.0 kHz
Domestic HF; (Alaska).
2875.0 kHz
Domestic HF.
2878.0 kHz
MA1, FAE
Domestic HF; International HF.
2911.0 kHz
2956.0 kHz
3004.0 kHz
3019.0 kHz
F, M, O
MA1, FAR, FAC
Search and rescue communications.
3281.0 kHz
MA, FAS
Lighter-than-air craft and aeronautical stations serving lighter-than-air craft.
3400.0-3500.0 kHz
3434.0 kHz
3443.0 kHz
3449.0 kHz
3470.0 kHz
Distress and safety with ships and coast stations.
4550.0 kHz
4645.0 kHz
4650.0-4700.0 kHz
4672.0 kHz
4947.5 kHz
5036.0 kHz
5122.5 kHz
5167.5 kHz
Alaska emergency.
5310.0 kHz
5450.0-5680.0 kHz
5451.0 kHz
5463.0 kHz
5469.0 kHz
5472.0 kHz
5484.0 kHz
5490.0 kHz
5496.0 kHz
5508.0 kHz
5571.0 kHz
5631.0 kHz
MA1, FAC, FAR
5887.5 kHz
6525.0-6685.0 kHz
6550.0 kHz
6580.0 kHz
6604.0 kHz
8015.0 kHz
8364.0 kHz
8815.0-8965.0 kHz
8822.0 kHz
8855.0 kHz
8876.0 kHz
10005.0-10100.0 kHz
10045.0 kHz
10066.0 kHz
11275.0-11400.0 kHz
11288.0 kHz
11306.0 kHz
11357.0 kHz
11363.0 kHz
13260.0-13360.0 kHz
13312.0 kHz
17900.0-17970.0 kHz
17964.0 kHz
21924.0-22000.0 kHz
21931.0 kHz
72.020-75.980 MHz
FA, AXO
Operational fixed; 20 kHz spacing.
Marker beacon.
108.000 MHz
108.000-117.950 MHz
VHF omni-range.
Differential GPS.
108.050 MHz
108.100-111.950 MHz
ILS Localizer.
108.100 MHz
108.150 MHz
118.000-121.400 MHz
MA, FAC, FAW, GCO, RCO, RPC
25 kHz channel spacing.
G, H, I, J, K, M, O
MA, FAU, FAE, FAT, FAS, FAC, FAM, FAP
Emergency and distress.
121.600-121.925 MHz
O, L, Q
MA, FAC, MOU, RLT, GCO, RCO, RPC
121.950 MHz
121.975 MHz
MA2, FAW, FAC, MOU
Air traffic control operations.
122.000 MHz
MA, FAC, MOU
Air carrier and private aircraft enroute flight advisory service provided by FAA.
122.025 MHz
122.050 MHz
122.125-122.675 MHz
MA2, FAC, MOU
Air traffic control operations; 25 kHz spacing.
MA, FAU, MOU
Unicom at airports with no control tower; Aeronautical utility stations.
Private fixed wing aircraft air-to-air communications.
122.775 MHz
122.825 MHz
Domestic VHF.
122.850 MHz
MA, FAM, FAS
122.875 MHz
F, H, L, M
MA, FAR, FAM, MOU
MA2, FAM
122.950 MHz
Unicom at airports with control tower; Aeronautical utility stations.
123.025 MHz
Helicopter air-to-air communications; Air traffic control operations.
123.100 MHz
MA, FAC, FAR
123.175 MHz
123.225 MHz
123.250 MHz
123.275 MHz
123.325 MHz
123.375 MHz
123.400 MHz
123.425 MHz
123.475 MHz
123.525 MHz
123.575 MHz
123.6-128.8 MHz
128.825-132.000 MHz
Domestic VHF; 25 kHz channel spacing.
132.025-135.975 MHz
136.000-136.400 MHz
Air traffic control operations; 25 kHz channel spacing.
136.425 MHz
136.450 MHz
136.475 MHz
136.500-136.875 MHz
136.900 MHz
International and Domestic VHF.
136.925 MHz
136.950 MHz
136.975 MHz
156.300 MHz
For communications with ship stations under specific conditions.
For communications with ship stations under specific conditions; Not authorized in New Orleans Vessel traffic service area.
Distress, safety and calling frequency; For communications with ship stations under specific conditions.
156.900 MHz
For communications with commercial fishing vessels under specific conditions except in Great Lakes and St. Lawrence Seaway Areas.
Emergency and distress frequency for use of survival craft and emergency locator transmitters.
328.600-335.400 MHz
ILS glide path.
334.550 MHz
334.700 MHz
406.0-406.1 MHz
F, G, H, I, J, K, M, O
MA, RL, RNV
Electronic aids to air navigation.
978.000 MHz
F, L, Q
MA, MOU, UAT
Universal Access Transceivers.
979.000 MHz
1030.000 MHz
1104.000 MHz
MA, RLS
Surveillance radars and transponders.
1435-1525 MHz
Aeronautical telemetry and telecommand operations.
1559-1610 MHz
1559-1626.5 MHz
1646.5-1660.5 MHz
Aeronautical Mobile-Satellite (R).
2310-2320 MHz
2345-2395 MHz
RLS, RLD
Airport surveillance and weather radar.
5350-5470 MHz
Airborne radars and associated airborne beacons.
8750-8850 MHz
Airborne doppler radar.
9000-9200 MHz
Land-based radar.
13250-13400 MHz
15400-15700 MHz
24750-25050 MHz
32300-33400 MHz
11. Amend § 87.187 by revising paragraphs (p), (q), and (x) and adding paragraph (ff) to read as follows:
(p) The frequency band 1435-1525 MHz is available on a primary basis and the frequency band 1525-1535 MHz is available on a secondary basis for telemetry and telecommand associated with the flight testing of aircraft, missiles, or related major components. This includes launching into space, reentry into the earth's atmosphere and incidental orbiting prior to reentry. The following frequencies are shared with flight telemetry mobile stations: 1444.5, 1453.5, 1501.5, 1515.5, and 1524.5 MHz. See§ 87.303(d).
Aeronautical telemetry operations must protect mobile-satellite operations in the 1525-2535 MHz band and maritime mobile-satellite operations in the 1530-1535 MHz band.
(q) The frequencies in the band 1545.000-1559.000 MHz and 1646.500-1660.500 MHz are authorized for use by the Aeronautical Mobile-Satellite (R) Service. The use of the bands 1544.000-1545.000 MHz (space-to-Earth) and 1645.500-1646.500 MHz (Earth-to-space) by the Mobile-Satellite Service is limited to distress and safety operations. In the frequency bands 1549.500-1558.500 MHz and 1651.000-1660.000 MHz, the Aeronautical Mobile-Satellite (R) requirements that cannot be accommodated in the 1545.000-1549.500 MHz, 1558.500-1559.000 MHz, 1646.500-1651.000 MHz, and 1660.000-1660.500 MHz bands shall have priority access with real-time preemptive capability for communications in the Mobile-Satellite Service. Systems not interoperable with the Aeronautical Mobile-Satellite (R) Service shall operate on a secondary basis. Account shall be taken of the priority of safety-related communications in the Mobile-Satellite Service.
(x) The frequency bands 24450-24650 MHz, 24750-25050 MHz and 32300-33400 MHz are available for airborne radionavigation devices.
(ff) The frequency 978 MHz is authorized for Universal Access Transceiver data transmission.
12.Amend § 87.345 by adding paragraph (f) to read as follows: § 87.345 Scope of service.
(f) Transmissions by aeronautical utility mobile stations for Universal Access Transceiver service are authorized.
13.Amend § 87.349 by adding paragraph (e) to read as follows: § 87.349 Frequencies.
(e) The frequency 978.0 MHz is authorized for Universal Access Transceiver data transmission.
14.Amend § 87.421 by revising paragraph (c) to read as follows: § 87.421 Frequencies.
(c) Frequencies listed in the introductory paragraph of this section are available to control towers and RCOs for communications with ground vehicles and aircraft on the ground. The antenna heights shall be restricted to the minimum necessary to achieve the required coverage. Channel spacing is 25 kHz.
15.Amend § 87.475 by adding paragraph (b)(9) and revising paragraphs (c)(1) and (c)(2) to read as follows: § 87.475 Frequencies.
(9) 978.0 MHz is authorized for Universal Access Transceiver service.
(1) The frequencies set forth in § 87.187(c), (e) through (j), (r), (t), and (ff) and § 87.475(b)(6) through (b)(10), and (b)(12) may be assigned to radionavigation land test stations for the testing of aircraft transmitting equipment that normally operate on these frequencies and for the testing of land-based receiving equipment that operate with airborne radionavigation equipment.
(2) The frequencies available for assignment to radionavigation land test stations for the testing of airborne receiving equipment are 108.000 and 108.050 MHz for VHF omni-range; 108.100 and 108.150 MHz for localizer; 334.550 and 334.700 MHz for glide slope; 978 and 979 MHz (X channel)/1104 MHz (Y channel) for DME; 978 MHz for Universal Access Transceiver; 1030 MHz for air traffic control radar beacon transponders; and 5031.0 MHz for microwave landing systems. Additionally, the frequencies in paragraph (b) of this section may be assigned to radionavigation land test stations after coordination with the FAA. The following conditions apply:
(i) The maximum power authorized on the frequencies 108.150 and 334.550 MHz is 1 milliwatt. The maximum power authorized on all other frequencies is one watt.
(ii) The pulse repetition rate (PRR) of the 1030 MHz ATC radar beacon test set will be 235 pulses per second (pps) ±5pps.
(iii) The assignment of 108.000 MHz is subject to the condition that no interference will be caused to the reception of FM broadcasting stations and stations using the frequency are not protected against interference from FM broadcasting stations.
[FR Doc. 06-9541 Filed 12-5-06; 8:45 am]