United States of America

Preliminary draft proposals for WRC-2000

Attached are the preliminary draft proposals of the United States
concerning the 2000 World Radiocommunication Conference (WRC-2000).
These draft proposals reflect deliberations in the United States as of 4
May 1999 and will be kept up to date as the our preparatory process
continues.

The United States intends to take into account comments and views
expressed by other administrations as progress in proposal development
continues.

This document presents our preliminary draft proposals. Each of the
individual proposals has been annotated, in the individual agenda title,
to indicate the date of its last revision.

**Table of Contents**

Proposals for Agenda Item 1.2 [3](#proposals-for-agenda-item-1.2)

to finalize remaining issues in the review of Appendix S3 to the Radio
Regulations with respect to spurious emissions for space services,
taking into account Recommendation 66 (Rev.WRC‑97) and the decisions of
WRC-97 on adoption of new values, due to take effect at a future time,
of spurious emissions for space services (20March99)
[3](#to-finalize-remaining-issues-in-the-review-of-appendix-s3-to-the-radio-regulations-with-respect-to-spurious-emissions-for-space-services-taking-into-account-recommendation-66-rev.wrc97-and-the-decisions-of-wrc-97-on-adoption-of-new-values-due-to-take-effect-at-a-future-time-of-spurious-emissions-for-space-services-20march99)

Proposals for Agenda Item 1.8 [13](#proposals-for-agenda-item-1.8)

to consider regulatory and technical provisions to enable earth stations
located on board vessels to operate in the fixed-satellite service (FSS)
networks in the bands 3 700 - 4 200 MHz and 5 925 - 6 425 MHz, including
their coordination with other services allocated in these bands
(20March99)
[13](#to-consider-regulatory-and-technical-provisions-to-enable-earth-stations-located-on-board-vessels-to-operate-in-the-fixed-satellite-service-fss-networks-in-the-bands-3-700---4-200-mhz-and-5-925---6-425-mhz-including-their-coordination-with-other-services-allocated-in-these-bands-20march99)

Proposals for Agenda Item 1.9 [18](#proposals-for-agenda-item-1.9)

to take into account the results of ITU-R studies in evaluating the
feasibility of an allocation in the space-to-Earth direction to the
mobile-satellite service in a portion of the 1 559 - 1 567 MHz frequency
range, in response to Resolutions 213 and 220 (WRC-97) (20March99)
[18](#to-take-into-account-the-results-of-itu-r-studies-in-evaluating-the-feasibility-of-an-allocation-in-the-space-to-earth-direction-to-the-mobile-satellite-service-in-a-portion-of-the-1-559---1-567-mhz-frequency-range-in-response-to-resolutions-213-and-220-wrc-97-20march99)

Proposals for Agenda Item 1.11 [21](#proposals-for-agenda-item-1.11)

to consider constraints on existing allocations and to consider
additional allocations on a worldwide basis for the non-GSO/MSS below 1
GHz, taking account the results of ITU studies conducted in response to
Res. 214 (Rev. WRC-97) and 219 (WRC-97); (20March99)
[21](#to-consider-constraints-on-existing-allocations-and-to-consider-additional-allocations-on-a-worldwide-basis-for-the-non-gsomss-below-1-ghz-taking-account-the-results-of-itu-studies-conducted-in-response-to-res.-214-rev.-wrc-97-and-219-wrc-97-20march99)

Proposals for Agenda Item 1.12 [24](#proposals-for-agenda-item-1.12)

to consider progress of studies on sharing between feederlinks of
non-geostationary satellite networks in the mobile satellite service and
geostationary-satellite networks in the fixed satellite service in the
bands 19.3-19.7 GHz and 29.1-29.5 GHz, taking into account Resolution
121 (Rev.WRC‑97) (20March99)
[24](#to-consider-progress-of-studies-on-sharing-between-feederlinks-of-non-geostationary-satellite-networks-in-the-mobile-satellite-service-and-geostationary-satellite-networks-in-the-fixed-satellite-service-in-the-bands-19.3-19.7-ghz-and-29.1-29.5-ghz-taking-into-account-resolution-121-rev.wrc97-20march99)

Proposals for Agenda Item 1.13 [26](#proposals-for-agenda-item-1.13)

on the basis of results of the studies in accordance with Resolutions
130(WRC‑97), 131(WRC-97), and 538(WRC-97); (16April99)
[26](#on-the-basis-of-results-of-the-studies-in-accordance-with-resolutions-130wrc97-131wrc-97-and-538wrc-97-16april99)

Proposals for Agenda Item 1.15.2 [40](#proposals-for-agenda-item-1.15.2)

to consider the addition of the space-to-space direction to the
radionavigation-satellite service allocations in the bands 1 215 -1 260
and 1 559 - 1610 MHz
[40](#to-consider-the-addition-of-the-space-to-space-direction-to-the-radionavigation-satellite-service-allocations-in-the-bands-1-215--1-260-and-1-559---1610-mhz)

Proposals for Agenda Item 1.16 [42](#proposals-for-agenda-item-1.16)

to consider allocations of frequency bands above 71 GHz to the
earth-exploration satellite (passive) and radio astronomy services,
taking into account Resolution 723; (20March99)
[42](#to-consider-allocations-of-frequency-bands-above-71-ghz-to-the-earth-exploration-satellite-passive-and-radio-astronomy-services-taking-into-account-resolution-723-20march99)

Proposals for Agenda Item 1.16 [43](#proposals-for-agenda-item-1.16-1)

to consider allocations of frequency bands above 71 GHz to the
earth-exploration satellite (passive) and radio astronomy services,
taking into account Resolution 723; (20March99)
[43](#to-consider-allocations-of-frequency-bands-above-71-ghz-to-the-earth-exploration-satellite-passive-and-radio-astronomy-services-taking-into-account-resolution-723-20march99-1)

Analysis of Passive Services 71 -- 275 Proposal
[83](#analysis-of-passive-services-71-275-proposal)

Proposals for Agenda Item 1.17 [90](#proposals-for-agenda-item-1.17)

to consider possible worldwide allocation for the earth
exploration-satellite (passive) and space research (passive) service in
the band 18.6 - 18.8 GHz, taking into account the results of the ITU-R
studies (20March99)
[90](#to-consider-possible-worldwide-allocation-for-the-earth-exploration-satellite-passive-and-space-research-passive-service-in-the-band-18.6---18.8-ghz-taking-into-account-the-results-of-the-itu-r-studies-20march99)

Proposals for Agenda Item 1.20 [92](#proposals-for-agenda-item-1.20)

to consider the issues related to the application of Nos. S9.8, S9.9 and
S9.17 and the corresponding parts of Appendix S5 with respect to
Appendices S30 and S30A, with a view to possible deletion of Articles 6
and 7 of Appendices S30 and S30A, also taking into consideration
Recommendation 35 (WRC-95); (16April99)
[92](#to-consider-the-issues-related-to-the-application-of-nos.-s9.8-s9.9-and-s9.17-and-the-corresponding-parts-of-appendix-s5-with-respect-to-appendices-s30-and-s30a-with-a-view-to-possible-deletion-of-articles-6-and-7-of-appendices-s30-and-s30a-also-taking-into-consideration-recommendation-35-wrc-95-16april99)

# Proposals for Agenda Item 1.2

## to finalize remaining issues in the review of Appendix S3 to the Radio Regulations with respect to spurious emissions for space services, taking into account Recommendation 66 (Rev.WRC‑97) and the decisions of WRC-97 on adoption of new values, due to take effect at a future time, of spurious emissions for space services (20March99)

# 

**Background Information:** Recommendation No. **66 (Rev. WRC--97)**
directs the ITU-R to submit a report to **WRC-2000** with a view to
finalizing the space services spurious emissions limits in Appendix
**S3** of the Radio Regulations. The United States proposes text that
would remove the "design objectives" designation from the space services
spurious emissions limits and make related appropriate modifications
applicable to deep-space systems, satellites with spurious emissions
falling within the necessary bandwidth of another transmitter on the
same satellite, and amateur earth stations below 30 MHz. Also the United
States proposes to adequately recognize the case of very narrowband and
unmodulated signals, particularly for the space services. Furthermore,
the United States proposes to correct an oversight in Appendix **S3**
regarding limits for the radiodetermination service, and specify that
spurious emission levels for radar systems be determined from radiated
emissions.

**Proposals:**

APPENDIX **S3**

Table of Maximum Permitted Spurious\
Emission Power Levels

(See Article **S3**)

APS3

1\. The following sections indicate the maximum permitted levels of
spurious emissions, in terms of power as indicated in the tables, of any
spurious component supplied by a transmitter to the antenna transmission
line. Section 1 is applicable until 1 January 2012 to transmitters
installed on or before 1 January 2003; Section 2 is applicable to
transmitters installed after 1 January 2003 and to all transmitters
after 1 January 2012. This Appendix does not cover out-of-band
emissions. Out-of-band emissions are dealt with in No. **S4.5** of the
Radio Regulations.

2\. Spurious emission from any part of the installation, other than the
antenna and its transmission line, shall not have an effect greater than
would occur if this antenna system were supplied with the maximum
permitted power at that spurious emission frequency.

3\. These levels shall not, however, apply to emergency
position-indicating radiobeacon (EPIRB) stations, emergency locator
transmitters, ships\' emergency transmitters, lifeboat transmitters,
survival craft stations or maritime transmitters when used in emergency
situations.

4\. For technical or operational reasons, more stringent levels than
those specified may be applied to protect specific services in certain
frequency bands. The levels applied to protect these services, such as
safety and passive services, shall be those agreed upon by the
appropriate world radiocommunication conference. More stringent levels
may also be fixed by specific agreement between the administrations
concerned. Additionally, special consideration of transmitter spurious
emissions may be required for the protection of safety services, radio
astronomy and space services using passive sensors. Information on the
levels of interference detrimental to radio astronomy, Earth exploration
satellites and meteorological passive sensing is given in the most
recent version of Recommendation ITU-R SM.329.

5\. Spurious emission limits for combined radiocommunication and
information technology equipment are those for the radiocommunication
transmitters.

Section I.  Spurious Emission Limits for Transmitters Installed on\
or Before 1 January 2003 (valid until 1 January 2012

6\. [Radar systems are exempt from spurious emission limits under this
section.]{.underline} ~~The measurement methods for radar systems should
be guided by Recommendation ITU-R M.1177. For those radar systems for
which acceptable methods of measurement do not exist, the lowest
practicable power of spurious emission should be achieved.~~

TABLE I

Attenuation values and absolute mean power levels used to calculate
maximum\
permitted spurious emission power levels for use with radio equipment

+----------------------+-----------------------------------------------+
| Frequency band       | For any spurious component, the attenuation   |
| containing the       | (mean power within the necessary bandwidth    |
| assignment           | relative to the mean power of the spurious    |
|                      | component concerned) shall be at least that   |
| (lower limit         | specified below and the absolute mean power   |
| exclusive,\          | levels given shall not be exceeded\           |
| upper limit          | (Note 1)                                      |
| inclusive)           |                                               |
+----------------------+-----------------------------------------------+
| 9 kHz to 30 MHz      | 40 decibels\                                  |
|                      | 50 milliwatts\                                |
|                      | 2), 3), 4)                                    |
+----------------------+-----------------------------------------------+
| 30 MHz to 235 MHz    |                                               |
+----------------------+-----------------------------------------------+
| -- mean power above  | 60 decibels\                                  |
| 25 watts             | 1 milliwatts\                                 |
|                      | 5)                                            |
+----------------------+-----------------------------------------------+
| -- mean power 25     | 40 decibels\                                  |
| watts or less        | 25 microwatts                                 |
+----------------------+-----------------------------------------------+
| 235 MHz to 960 MHz   |                                               |
+----------------------+-----------------------------------------------+
| -- mean power above  | 60 decibels\                                  |
| 25 watts             | 20 milliwatts\                                |
|                      | 6), 7)                                        |
+----------------------+-----------------------------------------------+
| -- mean power 25     | 40 decibels\                                  |
| watts or less        | 25 microwatts\                                |
|                      | 6), 7)                                        |
+----------------------+-----------------------------------------------+
| 960 MHz to 17.7 GHz  |                                               |
+----------------------+-----------------------------------------------+
| -- mean power above  | 50 decibels\                                  |
| 10 watts             | 100 milliwatts\                               |
|                      | 6), 7), 8), 9)                                |
+----------------------+-----------------------------------------------+
| -- mean power 10     | 100 microwatts\                               |
| watts or less        | 6), 7), 8), 9)                                |
+----------------------+-----------------------------------------------+
| Above 17.7 GHz       | The lowest possible values achievable shall   |
|                      | be employed (see Recommendation **66          |
|                      | (Rev.WRC-97**)).                              |
+----------------------+-----------------------------------------------+

+-----------------------------------------------------------------------+
| **Notes to Table I**                                                  |
|                                                                       |
| ^1)^ When checking compliance with the provisions of the table, it    |
| shall be verified that the bandwidth of the measuring equipment is    |
| sufficiently wide to accept all significant components of the         |
| spurious emission concerned.                                          |
+-----------------------------------------------------------------------+
| ^2)^ For mobile transmitters which operate below 30 MHz, any spurious |
| component shall have an attenuation of at least 40 decibels without   |
| exceeding the value of 200 milliwatts, but every effort should be     |
| made to comply with the level of 50 milliwatts wherever practicable.  |
+-----------------------------------------------------------------------+
| ^3)^ For transmitters of a mean power exceeding 50 kilowatts which    |
| can operate on two or more frequencies covering a frequency range     |
| approaching an octave or more, while a reduction below 50 milliwatts  |
| is not mandatory, a minimum attenuation of 60 decibels shall be       |
| provided.                                                             |
+-----------------------------------------------------------------------+
| ^4)^ For hand-portable equipment of mean power less than 5 watts, the |
| attenuation shall be 30 decibels, but every practicable effort should |
| be made to attain 40 decibels attenuation.                            |
+-----------------------------------------------------------------------+
| ^5)^ Administrations may adopt a level of 10 milliwatts provided that |
| harmful interference is not caused.                                   |
+-----------------------------------------------------------------------+
| ^6)^ Where several transmitters feed a common antenna or closely      |
| spaced antennas on neighbouring frequencies, every practicable effort |
| should be made to comply with the levels specified.                   |
+-----------------------------------------------------------------------+
| ^7)^ Since these levels may not provide adequate protection for       |
| receiving stations in the radio astronomy and space services, more    |
| stringent levels might be considered in each individual case in the   |
| light of the geographical position of the stations concerned.         |
+-----------------------------------------------------------------------+
| ^8)^ These levels are not applicable to systems using digital         |
| modulation techniques, but may be used as a guide. Values for these   |
| systems may be provided by the relevant ITU-R Recommendations, when   |
| available (see Recommendation **66 (Rev.WRC 97)**).                   |
+-----------------------------------------------------------------------+
| ^9)^ These levels are not applicable to stations in the space         |
| services, but the levels of their spurious emissions should be        |
| reduced to the lowest possible values compatible with the technical   |
| and economic constraints to which the equipment is subject. Values    |
| for these systems may be provided by the relevant ITU-R               |
| Recommendations, when available (see Recommendation **66              |
| Rev.WRC-97)**).                                                       |
+-----------------------------------------------------------------------+

Section II.  Spurious Emission Limits for Transmitters\
Installed After 1 January 2003 and for All\
Transmitters After 1 January 2012

## 

***Application of these limits***

7\. The frequency range of the measurement of spurious emissions is from
9 kHz to 110 GHz or the second harmonic if higher.

8\. Guidance regarding the methods of measuring spurious emissions is
given in the most recent version of Recommendation ITU-R SM.329. The
e.i.r.p. method specified in that Recommendation should be used when it
is not possible to measure the power supplied to the antenna
transmission line[, or where it is more appropriate, due to the antenna
signal attenuation characteristics]{.underline}. Additionally, the
e.i.r.p. method may need some modification for special cases, e.g.
beam-forming radars.

9\. Guidance regarding the methods of measuring spurious emissions from
radar systems is given in the most recent version of Recommendation
ITU-R M.1177. The reference bandwidths required for proper measurement
of radar spurious emissions should be calculated for each particular
radar system. Thus, for the three general types of radar pulse
modulation utilized for radionavigation, radiolocation, acquisition,
tracking and other radiodetermination functions, the reference bandwidth
values should be:

-- for fixed-frequency, non-pulse-coded radar, one divided by the radar
pulse length, in seconds (e.g. if the radar pulse length is
1 microsecond, then the reference bandwidth is 1/1μs = 1 MHz);

-- for fixed-frequency, phase coded pulsed radar, one divided
by  the  phase chip length, in seconds (e.g. if the phase coded chip is
2 microseconds long, then the reference bandwidth is 1/2μs = 500 kHz);

-- for frequency modulated (FM) or chirped radar, the square root of the
quantity obtained by dividing the radar bandwidth in MHz by the pulse
length, in seconds (e.g. if the FM is from 1 250 to 1 280 MHz or 30 MHz
during the pulse of 10 microseconds, then the reference bandwidth is
(30 MHz/10μs)^1/2^ = 1.73 MHz).

For those radar systems for which acceptable methods of measurement do
not exist, the lowest practicable power of spurious emission should be
achieved.

10\. The spurious emission levels are specified in the following
reference bandwidths:

-- 1 kHz between 9 kHz and 150 kHz

-- 10 kHz between 150 kHz and 30 MHz

-- 100 kHz between 30 MHz and 1 GHz

-- 1 MHz above 1 GHz

As a special case, the reference bandwidth of all space service spurious
emissions should be 4 kHz.

11\. For the purpose of setting limits, all emissions, including
harmonic emissions, intermodulation products, frequency conversion
products and parasitic emissions, which fall at frequencies separated
from the centre frequency of the emission by ±250%, or more, of the
necessary bandwidth of the emission will generally be considered as
spurious emissions. However, this frequency separation may be dependent
on the type of modulation used, the maximum bit rate in the case of
digital modulation, the type of transmitter and frequency coordination
factors. For example, in the case of digital (including digital
broadcasting) modulation systems, broadband systems, pulsed modulation
systems and narrow-band high power transmitters, the frequency
separation may need to differ from the ±250% factor. For multichannel or
multicarrier transmitters/transponders, where several carriers may be
transmitted simultaneously from a final output amplifier or an active
antenna, the centre frequency of the emission is taken to be the centre
of the --3 dB bandwidth of the transmitter or transponder and the
necessary bandwidth is taken to be the transmitter or transponder
bandwidth.

11 bis. As an emitted signal becomes more and more narrow (to the
limiting case of an unmodulated carrier with theoretical necessary
bandwidth of zero), the application of the term "necessary bandwidth" as
used in determining the region where spurious emission limits apply to
space services, becomes more and more difficult. In the limit, +/-250%
of necessary bandwidth (generally recognised as establishing the region
beyond which spurious emissions are defined), approaches zero. Beacon
and other unmodulated signals, such as those used in uplink and downlink
circuits in control and tracking of satellites, are examples of a case
where it is difficult to practically apply the term "necessary
bandwidth" in determining where out-of-band emissions end, and spurious
emissions begin. Pending further studies and definitive action by a
future World Radiocommunication Conference, in calculating the region
where spurious emission limits apply for transmitters using amplifiers
to pass essentially an unmodulated signal (or a signal with very small
bandwidth), the amplifier bandwidth is taken to be the necessary
bandwidth (in calculating the regions where spurious emissions apply.

11 ter For satellites employing more than one transponder, and when
considering the limits for spurious emission as indicated by Headnote 11
to Appendix **S3**, spurious emissions from one transponder may fall on
a frequency at which a companion, second transponder is transmitting. In
this situation, the level of spurious emission from the first
transponder is well exceeded by fundamental emissions of the second
transponder. Therefore, limits in this appendix do not apply to those
spurious emissions on a satellite which fall within the bands where
there are transmissions from the same satellite into the same service
area.

**12. Examples of applying 43 + 10 log (*P*) to calculate attenuation
requirements**

Where specified in relation to mean power, spurious emissions are to be
at least x dB below the total mean power *P*, i.e. --x dBc. The power
*P* (in watts) is to be measured in a bandwidth wide enough to include
the total mean power. The spurious emissions are to be measured in the
reference bandwidths given in the Recommendation. The measurement of the
spurious emission power is independent of the value of necessary
bandwidth. Because the absolute emission power limit, derived from 43 +
10 log (*P*), can become too stringent for high-power transmitters,
alternative relative powers are also provided in Table II.

*Example 1*

A land mobile transmitter, with any value of necessary bandwidth, must
meet a spurious emission attenuation of 43 + 10 log (*P*), or 70 dBc,
whichever is less stringent. To measure spurious emissions in the
frequency range between 30 MHz and 1 000 MHz, Recommendation ITU-R
SM.329-7 *recommends* 4.1 indicates the use of a reference bandwidth of
100 kHz. For other frequency ranges, the measurement must use the
appropriate reference bandwidths given in *recommends* 4.1.

With a measured total mean power of 10 watts:

-- Attenuation relative to total mean power = 43 + 10 log (10) = 53 dBc.

-- The 53 dBc is less stringent than 70 dBc, so the 53 dBc value is
used.

-- Therefore: Spurious emissions must not exceed 53 dBc in a 100 kHz
bandwidth, or converting to an absolute level, spurious emissions must
not exceed 10 dBW -- 53 dBc = --43 dBW in a 100 kHz reference bandwidth.

With a measured total mean power of 1 000 watts:

-- Attenuation relative to total mean power = 43 + 10 log (1 000) = 73
dBc.

-- The 73 dBc is more stringent than 70 dBc limit, so the 70 dBc value
is used.

-   Therefore: Spurious emissions must not exceed 70 dBc in a 100 kHz
    bandwidth, or converting to an absolute level, spurious emissions
    must not exceed 30 dBW -- 70 dBc = --40 dBW in a 100 kHz reference
    bandwidth.

*Example 2*

A space service transmitter with any value of necessary bandwidth must
meet a spurious emission attenuation of 43 + 10 log (*P*), or 60 dBc,
whichever is less stringent. To measure spurious emissions at any
frequency, Note 1 to Table II indicates using a reference bandwidth of
4 kHz.

With a measured total mean power of 20 watts:

-- Attenuation relative to total mean power = 43 + 10 log (20) = 56 dBc.

-- The 56 dBc is less stringent than the 60 dBc limit, so the 56 dBc
value is used.

-- Therefore: Spurious emissions must not exceed 56 dBc in a 4 kHz
reference bandwidth, or converting to an absolute level, spurious
emissions must not exceed 13 dBW -- 56 dBc = --43 dBW in a 4 kHz
reference bandwidth.

TABLE II

Attenuation values used to calculate maximum permitted spurious
emission\
power levels for use with radio equipment

  ------------------------ ----------------------------------------------
  Service category in\     Attenuation (dB) below the power\
  accordance with Article  supplied to the antenna transmission line
  S1, or equipment type15) 

  All services except      43 + 10 log (*P*), or 70 dBc, whichever is
  those services quoted    less stringent
  below:                   

  Space services (earth    43 + 10 log (*P*), or 60 dBc, whichever is
  stations)\               less stringent
  10), 16                  

  Space services (space    43 + 10 log (*P*), or 60 dBc, whichever is
  stations)\               less stringent
  10), 17)                 

  Radiodetermination 14)   43 + 10 log (*PEP*), or 60 dB, whichever is
                           less stringent

  Broadcast television11)  46 + 10 log (*P*), or 60 dBc, whichever is
                           less stringent, without exceeding the absolute
                           mean power level of 1 mW for VHF stations or
                           12 mW for UHF stations. However, greater
                           attenuation may be necessary on a case by case
                           basis.

  Broadcast FM             46 + 10 log (*P*), or 70 dBc, whichever is
                           less stringent; the absolute mean power level
                           of 1 mW should not be exceeded

  Broadcasting at MF/HF    50 dBc; the absolute mean power level of 50 mW
                           should not be exceeded

  SSB from mobile          43 dB below *PEP*
  stations12)              

  Amateur services         43 + 10 log (*PEP*), or 50 dB, whichever is
  operating below 30 MHz   less stringent
  (including with SSB)12), 
  16)                      
  ------------------------ ----------------------------------------------

TABLE II (*end*)

+---------------------------+------------------------------------------+
| Service category in\      | Attenuation (dB) below the power\        |
| accordance with Article   | supplied to the antenna transmission     |
| S1, or equipment type15)  | line                                     |
+---------------------------+------------------------------------------+
| Services operating below  | 43 + 10 log (*X*), or 60 dBc, whichever  |
| 30 MHz, except space,     | is less stringent, where *X* = *PEP* for |
| radiodetermination,       | SSB modulation, and *X* = *P* for other  |
| broadcast, those using    | modulation                               |
| SSB from mobile stations, |                                          |
| and amateur12)            |                                          |
+---------------------------+------------------------------------------+
| Low-power device radio    | 56 + 10 log (*P*), or 40 dBc, whichever  |
| equipment13)              | is less stringent                        |
+---------------------------+------------------------------------------+
| Emergency                 | No limit                                 |
| position-indicating radio |                                          |
| beacon                    |                                          |
|                           |                                          |
| Emergency locator         |                                          |
| transmitter               |                                          |
|                           |                                          |
| Personal location beacon  |                                          |
|                           |                                          |
| Search and rescue         |                                          |
| transponder               |                                          |
|                           |                                          |
| Ship emergency, lifeboat  |                                          |
| and survival craft        |                                          |
| transmitters              |                                          |
|                           |                                          |
| Land, aeronautical or     |                                          |
| maritime transmitters     |                                          |
| when used in emergency    |                                          |
+---------------------------+------------------------------------------+
| *P*: mean power in watts  |                                          |
| supplied to the antenna   |                                          |
| transmission line, in     |                                          |
| accordance with           |                                          |
| No. **S1.158**. When      |                                          |
| burst transmission is     |                                          |
| used, the mean power *P*  |                                          |
| and the mean power of any |                                          |
| spurious emissions are    |                                          |
| measured using power      |                                          |
| averaging over the burst  |                                          |
| duration.                 |                                          |
+---------------------------+------------------------------------------+
| *PEP*: peak envelope      |                                          |
| power in watts supplied   |                                          |
| to the antenna            |                                          |
| transmission line, in     |                                          |
| accordance with           |                                          |
| No. **S1.157**.           |                                          |
+---------------------------+------------------------------------------+
| dBc: decibels relative to |                                          |
| the unmodulated carrier   |                                          |
| power of the emission. In |                                          |
| the cases which do not    |                                          |
| have a carrier, for       |                                          |
| example in some digital   |                                          |
| modulation schemes where  |                                          |
| the carrier is not        |                                          |
| accessible for            |                                          |
| measurement, the          |                                          |
| reference level           |                                          |
| equivalent to dBc is      |                                          |
| decibels relative to the  |                                          |
| mean power *P*.           |                                          |
+---------------------------+------------------------------------------+

+-----------------------------------------------------------------------+
| **Notes to Table II**                                                 |
|                                                                       |
| ^10)^ Spurious emission limits for all space services are stated in a |
| 4 kHz reference bandwidth.                                            |
+-----------------------------------------------------------------------+
| ^11)^ For analogue television transmissions, the mean power level is  |
| defined with a specified video signal modulation. This video signal   |
| has to be chosen in such a way that the maximum mean power level      |
| (e.g. at the video signal blanking level for negatively modulated     |
| television systems) is supplied to the antenna transmission line.     |
+-----------------------------------------------------------------------+
| ^12)^ All classes of emission using SSB are included in the category  |
| \"SSB\".                                                              |
+-----------------------------------------------------------------------+
| ^13)^ Low-power radio devices having a maximum output power of less   |
| than\                                                                 |
| 100 mW and intended for short-range communication or control          |
| purposes; such equipment is in general exempt from individual         |
| licensing.                                                            |
+-----------------------------------------------------------------------+

  -----------------------------------------------------------------------
  ^14)^ Radiodetermination ([Radar)]{.underline} [system spurious
  emission]{.underline} [dB attenuation]{.underline} [shall be determined
  for radiated emission levels, not at the antenna transmission line. The
  measurement methods for determining the radiated spurious emission
  levels from the radar systems should be guided by Recommendation ITU-R
  M.1177.]{.underline}

  ^15)^ In some cases of digital modulation (including digital
  broadcasting), broadband systems, pulsed modulation and narrow-band
  high-power transmitters for all categories of services, there may be
  difficulties in meeting limits close to ±250% of the necessary
  bandwidth.
  -----------------------------------------------------------------------

  -----------------------------------------------------------------------
  ^16)^ Amateur earth stations operating below 30 MHz are in the service
  category 'Amateur services operating below 30 MHz (including with
  SSB).'

  -----------------------------------------------------------------------

  -----------------------------------------------------------------------
  ^17)^ *Deep Space* space station systems, as defined by Article **S1**
  and operating beyond 2 x 10^6^ km distance from the Earth, are exempt
  from spurious emission limits.

  -----------------------------------------------------------------------

**Reasons:** Recommendation No. **66 (Rev. WRC--97)** directs the ITU-R
to submit a report to the next WRC with a view to finalizing the space
services spurious emissions limits in Appendix **S3** of the Radio
Regulations. The United States proposes to confirm the values in Table
II and "clean up" the table by removing the "design objectives"
designation from the space services spurious emissions limits.
Furthermore, by clarifying the exemption of radar systems from the
Section I limits, the United States proposes to correct an oversight in
Appendix **S3** regarding limits for the radiodetermination service that
may lead incorrectly to the application of the Section I limits to
radars. Also, the United States proposes to clarify the application of
the e.i.r.p. measurement method to radars particularly, but also to
other systems where antenna line measurements may not be appropriate.

# Proposals for Agenda Item 1.8

## to consider regulatory and technical provisions to enable earth stations located on board vessels to operate in the fixed-satellite service (FSS) networks in the bands 3 700 - 4 200 MHz and 5 925 - 6 425 MHz, including their coordination with other services allocated in these bands (20March99)

**Background Information:** This item concerns provision of broadband
communications in the maritime context by earth stations on board
vessels using frequencies and the existing space segment in the
fixed-satellite service. These stations operate in three distinct modes:
at sea; while stationary in port; and in motion along designated sea
lanes while approaching or departing from port.

The United States considers that operations at sea (beyond the
yet-to-be-determined distance for near-shore coordination) by earth
stations on board vessels in the fixed-satellite service do not present
a potential for interference to terrestrial stations operating in
accordance with an allocation, and therefore need not be coordinated.
Operations while these earth stations are stationary in port are being
coordinated in the United States as fixed-satellite service earth
stations. Technical and regulatory issues concern the potential for
interference between in-motion operations by these earth stations while
close to shore and terrestrial stations in the fixed service.

As a first approach and provided that these earth stations meet a
minimum set of technical parameters, there would be no problem arising
from transmissions from earth stations on board vessels which are at
least a yet-to-be-determined distance from land. Although it seems to be
feasible, the coordination of earth stations on board vessels moving
near shore and in Stationary Modes at C Band needs further work. This
includes technical and regulatory aspects, procedures, criteria, etc.,
which are being pursued by ITU-R.

**Proposals:**

3 400 - 4 200 MHz

+-----------------------+----------------------+----------------------+
| > Allocation to       |                      |                      |
| > services            |                      |                      |
+-----------------------+----------------------+----------------------+
| > Region 1            | > Region 2           | > Region 3           |
+-----------------------+----------------------+----------------------+

+-----------------------+----------------------------------------------+
| > **3 400-3 600**     | **3 400-3 500**                              |
| >                     |                                              |
| > FIXED               | > FIXED                                      |
| >                     | >                                            |
| > FIXED-SATELLITE\    | > FIXED-SATELLITE (space-to-Earth)           |
| > (space-to-Earth)    | >                                            |
| >                     | > Amateur                                    |
| > Mobile              | >                                            |
| >                     | > Mobile                                     |
| > Radiolocation       | >                                            |
| >                     | > Radiolocation S5.433                       |
| > S5.431              | >                                            |
| >                     | > S5.282 S5.432                              |
| > **3 600-4 200**     | >                                            |
| >                     | > **3 500-3 700**                            |
| > FIXED               | >                                            |
| >                     | > FIXED                                      |
| > FIXED-SATELLITE\    | >                                            |
| > (space-to-Earth)    | > FIXED-SATELLITE (space-to-Earth)           |
| >                     | >                                            |
| > ADD S5.ESV          | > ADD S5.ESV                                 |
| >                     | >                                            |
| > Mobile              | > MOBILE except aeronautical mobile          |
|                       | >                                            |
|                       | > Radiolocation S5.433                       |
|                       | >                                            |
|                       | > S5.435                                     |
|                       | >                                            |
|                       | > **3 700-4 200**                            |
|                       | >                                            |
|                       | > FIXED                                      |
|                       | >                                            |
|                       | > FIXED-SATELLITE (space-to-Earth)           |
|                       | >                                            |
|                       | > MOBILE except aeronautical mobile          |
+-----------------------+----------------------------------------------+

**Reasons:** To establish regulatory and technical provisions for
operations of earth stations on board vessels in the fixed-satellite
service.

5 925 - 6 425 MHz

  ----------------------- ----------------------- -----------------------
  Allocation to services                          

  Region 1                Region 2                Region 3
  ----------------------- ----------------------- -----------------------

+-----------------------------------------------------------------------+
| **5 925-6 425** FIXED                                                 |
|                                                                       |
| FIXED-SATELLITE (Earth-to-space) ADD S5.ESV                           |
|                                                                       |
| MOBILE                                                                |
|                                                                       |
| S5.149 S5.440 S5.458                                                  |
+-----------------------------------------------------------------------+

**Reasons:** To establish regulatory and technical provisions for
operations of earth stations on board vessels in the fixed-satellite
service.

S5.ESV Earth stations located on board vessels may operate in the
fixed-satellite service in accordance with Resolution **ESV
(WRC-2000).**

**Reasons:** To establish regulatory and technical provisions for
operations of earth stations on board vessels in the fixed-satellite
service.

Resolution ESV (WRC-2000)

Provisions for the Use of Earth Stations in the Fixed-Satellite Service
Located on board Vessels in the Bands 3 700-4 200 MHz and
5 925-6 425 MHz

The World Radiocommunication Conference (Istanbul, 2000),

considering

a)  that the technology exists to permit the operation of earth stations
    on board vessels (ESV) in the fixed-satellite service in the bands 3
    700 - 4 200 MHz (space-to-Earth), and 5 925 - 6 425 MHz
    (Earth-to-space);

b)  that developmental operations on board vessels using such earth
    stations operating in fixed-satellite service networks have been
    conducted successfully for several years;

c)  that, when such an fixed-satellite service earth station of one
    Administration is in and near the territory of another
    Administration in which there are fixed service stations or other
    co-primary services, coordination may be necessary;

d)  that the coordination situations for such vessels include
    operations:

```{=html}
<!-- -->
```
(i) a certain distance from the nearest point of land beyond which no
    coordination is necessary;

(ii) stationary (in port or moored);

(iii) in motion within the distance in (i) from the nearest point of
      land;

```{=html}
<!-- -->
```
a)  that methods exist for addressing the coordination situations in d)
    above,

resolves

1.  that an earth station on board a vessel (ESV) may operate as a
    station in the fixed-satellite service while receiving in the 3
    700 - 4 200 MHz band and transmitting in the 5 925 - 6 425 MHz band;

2.  that operation of ESV earth stations which are at least \[XXX\] km
    from land requires no coordination;

3.  that when earth stations on board vessels are operated in or near a
    port, either at a stationary position or while in motion, using the
    bands 3 700 - 4 200 MHz (space-to-Earth) and 5 925 - 6 425
    (Earth-to-space) of the fixed-satellite service, they will do so as
    follows:

```{=html}
<!-- -->
```
(a) the authority over operations on radio frequencies within \[XXX\] km
    of land while in and near a port belongs with the Administration of
    that territory where the port is located; however, the
    responsibility for the ESV station lies with the Administration that
    authorized the use of the ESV station;

(b) The administration that authorizes the use of the ESV station in
    these bands shall ensure that they do not cause harmful interference
    to stations which themselves are established and operated in
    accordance with the Radio Regulations;

(c) It is expected that in each port where ESVs will be operating in the
    fixed-satellite service in these bands:

```{=html}
<!-- -->
```
(i) a set of frequencies will be established for such use that have been
    coordinated with all other co-primary users;

(ii) this set of frequencies will not include the entire allocation in
     these bands;

(iii) coordination will be accomplished between the Administration(s)
      with authority over the terrestrial services operating in these
      bands in and near that port and the Administration that authorized
      the ESV station to operate in these bands;

(iv) upon completion of such coordination, the ESV station will be
     authorized to operate in the fixed-satellite service in these bands
     in and near the port;

```{=html}
<!-- -->
```
(a) a list of the ESVs authorized to operate in and near a particular
    port and the frequencies and associated operational conditions which
    have been coordinated in that port will be established and
    maintained by the Administration responsible for that port and such
    list shall include a point of contact for obtaining this
    information;

(b) ESV station operators must comply with the conditions established by
    the authorizing Administration(s);

```{=html}
<!-- -->
```
1.  that coordination of in-motion ESV stations within \[XXX\] km of
    land shall be accomplished using the provisions of Annex 1 to this
    Resolution.

**Reasons:** To establish regulatory and technical provisions for
operations of earth stations on board vessels in the fixed-satellite
service.

Annex 1

To be developed

**Reasons:** To establish regulatory and technical provisions for
operations of earth stations on board vessels in the fixed-satellite
service.

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

# Proposals for Agenda Item 1.9

## to take into account the results of ITU-R studies in evaluating the feasibility of an allocation in the space-to-Earth direction to the mobile-satellite service in a portion of the 1 559 - 1 567 MHz frequency range, in response to Resolutions 213 and 220 (WRC-97) (20March99)

**Background Information:** Proposals were made to WRC-97 to reallocate
portions of the 1 559 -1 610 MHz band which, with the exception of a
fixed service allocation in some countries, currently is exclusively
allocated to the radionavigation satellite service and aeronautical
radionavigation service worldwide. Other proposals were made not to
change the existing allocations in these bands. In Resolution **220**
**(WRC-97)**, the ITU-R was requested to study, as a matter of urgency,
the technical criteria and operational and safety requirements to
determine if sharing between the aeronautical radionavigation and
radionavigation-satellite services, operating or planned to be operate,
in the band 1559-1610 MHz, and the mobile-satellite service in a portion
of the 1559-1567 MHz frequency range, is feasible, taking into account
the essential need to protect systems operating in the aeronautical
radionavigation and radionavigation-satellite services in the band
1559-1610 MHz.

There are millions of RNSS receivers in use today for a wide range of
applications, including safety-of-life-critical navigation on land, at
sea, and in the air. Today, most of these receivers operate with the
Global Positioning System (GPS), an important element of the Global
Navigation Satellite System (GNSS) that operates in the 1 559 - 1
610 MHz band.

GPS provides position and time information to users by means of one-way
transmissions using RNSS (space-to-Earth) allocations. GPS is
information technology that uses systems of hardware and software, as
well as information (time and ephemeris) transmitted from satellites to
provide derived information to the user.

GLONASS and GPS are established elements of the International Civil
Aviation Organization (ICAO) GNSS, operating in the band 1 559 - 1
610 MHz. These systems are accepted by the ICAO Council for use in
international civil aviation. ICAO is currently developing Standards and
Recommended Practices for international application in civil aviation.
The GNSS will be used during all phases of flight, including precision
approaches and landing, and under all weather conditions. The latter
places extensive requirements on the performance characteristics of the
system. The aeronautical use of RNSS is recognized in the Radio
Regulations as a safety-of-life application. GPS is the sole basis for
the formation of International Atomic Time and Coordinated Universal
Time (UTC) by the International Bureau of Weights and Measures. GPS is
also the primary means by which clocks are synchronized within
telecommunications networks for Time Division Multiple Access
transmissions. Time and frequency functions are or will be available on
other RNSS systems.

As Resolution **220 (WRC-97)** recognizes RNSS and ARNS systems are
evolutionary and other types of GNSS are under development for operation
in the band 1 559 - 1 610 MHz. There are both aeronautical and
non-aeronautical safety-of-life services in the 1 559 - 1 610 MHz band,
and it is well established that there is an essential need to protect
systems operating in the ARNS and RNSS.

The core signal structures of the MSS and the RNSS and ARNS are
fundamentally different: MSS uses a two-way signal while ARNS and RNSS
transmits a weak, receive-only signal. Having systems from a
radiocommunication service operate on a co-primary, co-frequency basis
in the 1 559 - 1 610 MHz band would limit ARNS and RNSS operators\'
flexibility to adjust their spectrum usage, and would hamper efforts to
develop a GNSS that is capable of meeting evolving international needs
and of providing adequate protection for international civil use
worldwide.

Studies undertaken in the ITU addressed current aeronautical
radionavigation and radionavigation-satellite service systems, as well
as future radionavigation services planned for this band.

These studies reached the following conclusions:

-   MSS (space-to-Earth) and ARNS/RNSS are fundamentally incompatible in
    any portion of the 1559-1567 MHz band. Not only do MSS signals
    disrupt ARNS/RNSS, but GNSS pseudolites disrupt MSS signals.

-   The -112 dB(W/m^2^/MHz) power flux-density level at the Earth's
    surface that is mentioned in Resolution 220 clearly would not
    protect existing RNSS systems (such as GPS) from harmful
    interference.

-   The RNSS is extensively used, and is continuing to undergo a
    tremendous expansion which drives further evolution. These factors,
    along with the many critical timing, positioning, and navigation
    uses of RNSS sharing of the 1559-1610 MHz band, weigh conclusively
    against sharing any portion of the band segment at 1559-1567 MHz
    with any co-frequency communication service.

-   The use of pseudolites in the ARNS/RNSS bands at 1559-1567 MHz is in
    its early stages, but is expected to increase in terms of numbers,
    geographic scope, and complete utilization of the frequency band in
    the near future. This use is incompatible with co-frequency MSS
    (space-to-Earth).

    **Proposals:**

    The United States proposes that no allocation be made to the Mobile
    Satellite Service (space-to-Earth) in any portion of the 1559 -
    1567 MHz band under agenda item 1.9.

    **Reasons:** The current allocation, 1 559 - 1 610 MHz, is required
    for radionavigation services, including critical aeronautical safety
    applications, on a worldwide basis. Based on studies conducted in
    the ITU-R pursuant to Resolution **220**, sharing in this band with
    communications services such as the mobile-satellite service
    (space-to-Earth) is not possible.

    **~~RESOLUTION 220 (WRC-97)~~**

    **~~Studies to consider the feasibility of use of~~**

    **~~a portion of the band 1559-1610 MHz by the~~**

    **~~mobile-satellite service (space-to-Earth)~~**

    **Reasons:** Studies performed by the ITU-R show that co-frequency
    sharing between the mobile-satellite service and the
    radionavigation-satellite and aeronautical radionavigation services
    within the band 1559 - 1567 MHz is not feasible. The ITU-R studies
    satisfy the requirement of Resolution **220 (WRC‑97)**. As a result,
    Resolution **220** should be suppressed.

# Proposals for Agenda Item 1.11 {#proposals-for-agenda-item-1.11 .unnumbered}

## to consider constraints on existing allocations and to consider additional allocations on a worldwide basis for the non-GSO/MSS below 1 GHz, taking account the results of ITU studies conducted in response to Res. 214 (Rev. WRC-97) and 219 (WRC-97); (20March99)

**Background Information:** A number of studies have been carried out
since MSS allocations for non-GSO satellite systems were first agreed at
WARC-92. These have led to ITU-R Recommendations which indicate the
sharing techniques which are being used by those systems to share with
each other and other co-primary services.

The table below (Non-GSO MSS Sharing Summary) from Recommendation
ITU-RM.\[YA\] "Methods for achieving coordinated use of multiple non-GSO
MSS systems below 1 GHz and sharing with other services in existing MSS
allocations" summarizes the techniques and Recommendations applied to
existing MSS allocations. Many of these techniques are being employed in
practice successfully.

Non-GSO MSS Sharing Summary

+---------------+-----------------------+-----------------------------+
|               | **Narrow-band**       | **Wideband**                |
+---------------+-----------------------+-----------------------------+
| Fixed and     | Combination:          | Combination:                |
| mobile        |                       |                             |
|               | -   Dynamic channel   | -   Low output power        |
| (148-149.9    |     avoidance (Rec.   |     density                 |
| MHz)          |     ITU-R M.1039)     |                             |
|               |                       | -   Brief message duration  |
| (455-456 MHz  | -   Low duty cycle    |                             |
|               |                       | -   Low data rate           |
| and (459-460  | -   Brief message     |                             |
| MHz           |     duration          | -   Filtering at satellite  |
|               |                       |                             |
| in Region 2)  | -   (Rec.ITU-R M.     | -   Geographical separation |
|               |     1185)             |                             |
| (454-455 MHz  |                       |                             |
| by footnotes) |                       |                             |
+---------------+-----------------------+-----------------------------+
| Fixes and     | Ground level pfd per  | Ground level pfd per RR     |
| mobile        | RR S5.208             | S5.208                      |
|               |                       |                             |
| (137-138 MHz) |                       |                             |
|               |                       |                             |
| (400.15-401   |                       |                             |
| MHz)          |                       |                             |
+---------------+-----------------------+-----------------------------+
| M             | Assignment separation | Combination:                |
| eteorological |                       |                             |
| satellites    |                       | -   Low pfd at ground level |
|               |                       |                             |
| (137-138      |                       | -   Cross polarization      |
| MHz)\*        |                       |     discrimination          |
|               |                       |                             |
| (400.15-401   |                       | -   Adaptive filter at      |
| MHz)          |                       |     satellite               |
+---------------+-----------------------+-----------------------------+
| Space         | Channel avoidance     | Combination:                |
| operations    |                       |                             |
|               |                       | -   Low pfd                 |
| Space         |                       |                             |
| research      |                       | -   Cross polarization      |
|               |                       |     discrimination          |
| (137-138 MHz) |                       |                             |
+---------------+-----------------------+-----------------------------+
| Space         | Channel avoidance     | Combination:                |
| research      |                       |                             |
|               |                       | -   Low pfd                 |
| (400.15-401   |                       |                             |
| MHz)          |                       | -   Cross polarization      |
|               |                       |     discrimination          |
+---------------+-----------------------+-----------------------------+
| M             | Channel avoidance     | Combination:                |
| eteorological |                       |                             |
| aids          |                       | -   Low pfd                 |
|               |                       |                             |
| (400.15-401   |                       | -   Cross polarization      |
| MHz)          |                       |     discrimination          |
+---------------+-----------------------+-----------------------------+

The constraints on existing allocations are reflected in the footnotes
to the allocations, and in the Annex 1 to Appendix **S5**. These have
evolved to their present form since WARC-92, and now reflect a balance
with regard to sharing criteria among the primary services concerned.

These constraints have served to provide a basis for implementing
non-GSO MSS systems in these bands and at the same time provide
protection to other space and terrestrial services. Therefore in respect
to the constraints of the MSS in existing allocations below 1 GHz, no
further modifications are needed.

**Proposals:**

## 

**S9.11A** *e)* for a station for which the requirement to coordinate is
included in a footnote of the Table of Frequency Allocations referring
to this provision:

**Reasons:** No modifications are required to the Tables of Criteria
applicable to MSS allocations for the non-GSO systems below 1 GHz as
found in No  **S9.11A**, or to the footnotes containing constraints
which apply to the pertinent allocations.

APPENDIX **S5**

ANNEX 1

1 Coordination thresholds for sharing between MSS (space-to-Earth) and
terrestrial services in the same. frequency bands and between non-GSO
MSS feeder links (space-to-Earth) and terrestrial services in the same
frequency bands

1.1 Below 1 GHz

1.1.1 In the bands 137-138 MHz and 400.15-401 MHz, coordination of a
space station of the MSS (space-to-Earth) with respect to terrestrial
services (except aeronautical mobile (OR) service networks operated by
the administrations listed in Nos. **S5.204** and **S5.206** as of
1 November 1996) is required only if the pfd produced by this space
station exceeds - 125 dB (W/m2/4 kHz) at the Earth's surface.

**Reasons:** No modifications are required to the Tables of Criteria
applicable to MSS allocations for the non-GSO systems below 1 GHz as
found in No. **S9.11A**, or to the footnotes containing constraints
which apply to the pertinent allocations.

1.1.2 In the band 137-138 MHz, coordination of a space station of the
MSS (space-to-Earth) with respect to the aeronautical mobile (OR)
service is required only if the pfd produced by this space station at
the Earth's surface exceeds:

-- -- 125 dB (W/m2/4 kHz) for networks for which complete Appendix **3**
coordination informa­tion has been received by the Bureau prior to
1 November 1996;

-- -- 140 dB (W/m2/4 kHz) for networks for which complete
Appendix **S4**/**3** coordination information has been received by the
Bureau after 1 November 1996 for the administrations referred to in §
1.1.1 above.

**Reasons:** No modifications are required to the Tables of Criteria
applicable to MSS allocations for the non-GSO systems below 1 GHz as
found in No. **S9.11A**, or to the footnotes containing constraints
which apply to the pertinent allocations.

1.1.3 In the band 137-138 MHz, coordination is also required for a space
station on a replacement satellite of a MSS network for which complete
Appendix **3** coordination information has been received by the Bureau
prior to 1 November 1996 and the pfd exceeds - 125 dB(W/m2/4 kHz) at the
Earth's surface for the administrations referred to in § 1.1.1 above.

**Reasons:** No modifications are required to the Tables of Criteria
applicable to MSS allocations for the non-GSO systems below 1 GHz as
found in No. **S9.11A**, or to the footnotes containing constraints
which apply to the pertinent allocations.

**3.2 General considerations**

**TABLE 1**

**Earth stations operating at frequencies below 1 GHz**

#  {#section-3 .unnumbered}

**Reasons:** No modifications are required to the Tables of criteria
applicable to MSS allocations for use by Non-GSO systems below 1 GHz, as
found in No. **S9.11A**, or to the footnotes containing constraints
which apply to the pertinent allocations.

# Proposals for Agenda Item 1.12 {#proposals-for-agenda-item-1.12 .unnumbered}

## to consider progress of studies on sharing between feederlinks of non-geostationary satellite networks in the mobile satellite service and geostationary-satellite networks in the fixed satellite service in the bands 19.3-19.7 GHz and 29.1-29.5 GHz, taking into account Resolution 121 (Rev.WRC‑97) (20March99)

**Background Information:** Resolution **121** requests that the ITU-R
conduct a study of sharing possibilities between GSO FSS and NGSO MSS
feederlinks in the bands. In response ITU-R WP-4A of Study Group 4 has
agreed a Draft New Recommendation, "Mitigation Techniques to Facilitate
Coordination in the 20/30 GHz NGSO MSS Feederlinks".

The Recommendation includes the topics of Adaptive Power Control, High
Gain Antennas, Geographic Isolation, Site Diversity and Link Balancing.

This Recommendation is considered to have covered the requirements of
Resolution **121 (Rev. WRC‑97)** and thus satisfies the agenda.

**Proposals:**

**S5.541A** Feeder links of non-geostationary networks in the
mobile-satellite service and geostationary networks in the
fixed-satellite service operating in the band 29.1-29.5 GHz
(Earth-to-space) shall employ uplink adaptive power control or other
methods of fade compensation, such that the earth station transmissions
shall be conducted at the power level required to meet the desired link
performance while reducing the level of mutual interference between both
networks. These methods shall apply to networks for which Appendix
**S4** coordination information is considered as having been received by
the Bureau after 17 May 1996 and until they are changed by a future
competent world radiocommunication conference. Administrations
submitting Appendix **S4** information for coordination before this date
are encouraged to utilize these techniques to the extent practicable.

**Reasons**: The objective of Resolution **121** has been addressed
through the development of a Draft New Recommendation in Study Group 4
of the ITU-R.

**Reasons:** The objectives of Resolution **121** have been met.

# Proposals for Agenda Item 1.13 {#proposals-for-agenda-item-1.13 .unnumbered}

## on the basis of results of the studies in accordance with Resolutions 130(WRC‑97), 131(WRC-97), and 538(WRC-97); (16April99)

**1.13.1:** *to review and, if appropriate, revise the power limits
appearing in Articles **S21** and **S22** in relation to the sharing
conditions among non-GSO FSS, GSO FSS, GSO broadcasting-satellite
service (BSS), space sciences and terrestrial services, to ensure the
feasibility of these power limits and that these limits do not impose
undue constraints on the development of these systems and services;*

**1.13.2:** *to consider the inclusion in other frequency bands of
similar limits in Articles **S21** and **S22**, or other regulatory
approaches to be applied in relation to sharing situations;*

**Background Information:** WRC-97 adopted provisional power flux
density limits in certain frequency bands which would apply to non-GSO
FSS systems to protect GSO FSS networks, and GSO BSS networks.
Resolution **130** **(WRC-97)**, *Use of Non-Geostationary Systems in
the Fixed-Satellite Service in Certain Frequency Bands* and Article
**S22.2** of the Radio Regulations contain provisional limits
corresponding to an interference level caused by one NGSO system in the
frequency bands 10.7-12.75 GHz, 17.8-18.6 GHz, and 19.7-20.2 GHz.
Resolution **538,** *Use of the Frequency Bands Covered by Appendices
**30** and **30A** by Non-GSO Systems in the Fixed-Satellite Service*,
and Article **S22** contain limits corresponding to permissible levels
of interference level from a NGSO system into a GSO BSS network.
Resolution **131** **(WRC-97),** *Power Flux-Density Limits Applicable
to Non-GSO FSS Systems for Protection of Terrestrial Services in the
Bands 10.7-12.75 GHz and 17.7-19.3 GHz*, and Article **S21** contain
per-satellite power flux-density limits to protect terrestrial services.
Resolutions **130** and **538** request review of the provisional limits
and Resolution **131** requests review of the provisional limits and
calls for further study of the current power flux-density limits.

**Proposals for Agenda Item 1.13.1**

**Proposals:**

1\. Proposals to require coordination between NGSO FSS transmitting
space stations and GSO receive earth stations with antenna gains greater
than a specified value. These proposals include additions and/or
modifications to Articles **S5**, **S9**, **S22**, Appendices **S4**,
and **S5**.

**S5.441** The use of the bands 4 500-4 800 MHz (space-to-Earth),
6 725-7 025 MHz (Earth-to-space) by the fixed-satellite service shall be
in accordance with the provisions of Appendix **S30B**. The use of the
bands 10.7-10.95 GHz (space-to-Earth), 11.2-11.45 GHz (space-to-Earth)
and 12.75-13.25 GHz (Earth-to-space) by geostationary-satellite systems
in the fixed-satellite service shall be in accordance with the
provisions of Appendix** S30B**. The use of the bands 10.7-10.95 GHz
(space-to-Earth), 11.2-11.45 GHz (space-to-Earth), and 12.75-13.25 GHz
(Earth-to-space) by non-geostationary-satellite systems in the
fixed-satellite service ~~shall be in accordance with~~ [is subject
to]{.underline} the provisions of ~~Resolution **130** **(WRC-97)**~~
[**Article S22** and No. **S9.12.** The use of the bands 10.7-10.95 GHz
(space-to-Earth) and 11.2-11.45 GHz (space-to-Earth) is subject to the
provisions of No. **S9.16A** and **S9.16B**.]{.underline}

**S5.484A** The use of the bands 10.95-11.2 GHz (space-to-Earth),
11.45-11.7 GHz (space-to-Earth), 11.7-12.2 GHz (space-to-Earth) in
Region 2, 12.2-12.75 GHz (space-to-Earth) in Region 3, 12.5-12.75 GHz
(space‑to‑Earth) in Region 1, 13.75-14.5 GHz (Earth-to-space),
17.8-18.6 GHz (space-to-Earth), 19.7-20.2 GHz (space-to-Earth),
27.5-28.6 GHz (Earth-to-space), 29.5-30 GHz (Earth-to-space) by
non-geostationary- and geostationary-satellite systems in the
fixed-satellite service is subject to the provisions of ~~Resolution
**130** **(WRC-97)**~~ [**Article S22** and No. **S9.12.** The use of
the bands 10.95-11.2 GHz (space-to-Earth), 11.45-11.7 GHz
(space-to-Earth), 11.7-12.2 GHz (space-to-Earth) in Region 2,
12.2-12.75 GHz (space-to-Earth) in Region 3, 12.5-12.75 GHz
(space-to-Earth) in Region 1, 17.8-18.6 GHz (space-to-Earth), and
19.7-20.2 GHz (space-to-Earth) is subject to the provisions of No.
**S9.16A** and **S9.16B.**]{.underline} ~~The use of the band 17.8-18.1
GHz (space-to-Earth) by non-geostationary fixed-satellite service
systems is also subject to the provisions of Resolution **538
(WRC-97)**.~~

**Reasons:** The references to Resolutions **130 (WRC-97)** and **538
(WRC-97)** were replaced by a reference to Article **S22** where the
non-transitional provisions of these resolutions are contained. The
Article **S9** provisions for stations for which the requirement to
coordinate is included in a footnote to the Table of Frequency
Allocations were specified in order to clarify the requirements for
coordination under the existing No. **S9.12.** The proposed **S9.16A**
and **S9.16B** would require coordination between NGSO FSS transmit
satellites and GSO FSS receive earth stations with large antennas. GSO
FSS earth stations with large antennas are not adequately protected by
the EPFD levels contained in Table **S22-3** and case-by-case
coordination of systems operating co-frequency, co-directional links in
the space-to-Earth direction is required.

**ARTICLE S9**

**Sub-Section IIA - Requirement and request for coordination**

**S9.16A** vi) which is a specific earth station within a
geostationary-satellite network in the fixed-satellite service in
certain frequency bands subject to No. **S5.441** or **S5.484A,** in
respect of a non-geostationary satellite system in the fixed-satellite
service;

**Reasons:** GSO FSS earth stations with large antennas are not
adequately protected by the EPFD levels contained in **Table S22-3** and
case-by-case coordination is required. Since coordination between a NGSO
FSS space station and large GSO FSS earth stations is a new type of
coordination that does not currently exist in Article **S9**, it is
necessary to add two new entry points in Article **S9:**

-   One entry point to enable the NGSO space station administration to
    request coordination with administrations having specific large
    earth station antennas

-   Another entry point to enable the reciprocal coordination to take
    place, i.e. the possibility for an administration planning to
    implement a specific large GSO earth station to request coordination
    with administrations having NGSO FSS transmit space stations.

    **S9.16B** vii) which is a non-geostationary-satellite system in the
    fixed-satellite service in certain frequency bands subject to
    **S5.441** or **S5.484A,** in respect of a specific earth station
    within a geostationary satellite network in the fixed-satellite
    service;

    **Reasons:** Same as the reason for **S9.16A**

    TABLE **S22-3**^ZZ^

    PART A

    TABLE **S22-3**^ZZ^

    PART B

    ^ZZ^ -For certain receive earth stations, this Table is not
    applicable and coordination is required under Nos. **S9.16A** and
    **S9.16B**.

    **Reasons**: The EPFD levels contained in **Table S22-3** do not
    adequately protect earth stations in geostationary satellite
    networks in the fixed-satellite service with large antenna gains.
    Case-by-case coordination is required by the proposed modifications
    to footnotes **S5.441** and **S5.484A**.

    Since there is no requirement to give the specific locations of
    earth stations today, there may need to be a resolution written to
    have typical earth stations, already in coordination or notified,
    that meet the above criteria to be brought in as specific earth
    stations. In this resolution, there will have to be some guidance on
    priorities. Additional guidance will need to be added to the
    *Instructions for Filling Out the Form of Notice ApS4/II and
    ApS4/III Relating to Space Radiocommunication Stations* distributed
    by CR/65.

    MOD TO APPENDIX S4

    ANNEX 2B (to Appendix **S4**)

    Table of characteristics to be submitted for space and radio
    astronomy services

    A. General characteristics of the satellite network or the earth
    station

    *(Only these two columns are reproduced. These changes need to be
    incorporated into the full table.)*

  --------------------------- -------------------------------------------
  Items in\                   Notification or\
  Appendix                    co-ordination of\
                              a GSO network\
                              (including\
                              Appendix **S30B**)

  A.1.a                       X

  A.1.b                       

  A.1.c                       

  A.1.d                       

  A.1.e.1                     

  A.1.e.2                     

  A.1.e.3                     [C^ZZ^]{.underline}

  A.1.e.4                     

  A.1.f                       X

  A.2.a                       X

  A.2.b                       X

  A.2.c                       

  A.3                         X

  A.4.a.1                     X

  A.4.a.2                     X

  A.4.a.3                     X

  A.4.a.4                     X

  A.4.a.5                     X

  A.4.b                       

  A.4.c                       

  A.5                         X

  A.6                         X

  A.7.a                       [C^ZZ^]{.underline}

  A.7.b                       [C^ZZ^]{.underline}

  A.7.c                       [C^ZZ^]{.underline}

  A.7.d                       [C^ZZ^]{.underline}

  A.8                         

  A.9                         

  A.10                        

  A.11                        

  A.12                        

  A.13                        X
  --------------------------- -------------------------------------------

X Mandatory information

O Optional information

C This information need only be furnished when it has been used as a
basis to effect coordination with another administration

[^ZZ)^ Required for coordination under No. **S9.16A** or
**S9.16B**.]{.underline}

B. Characteristics to be provided for each satellite antenna beam and
for each earth station antenna

  ---------------------------- ------------------------------------------
  Items in\                    Notification or\
  Appendix                     coordination of\
                               a GSO network\
                               (including\
                               Appendix **S30B**)

  B.1                          X

  B.2                          X

  B.3.a                        X

  B.3.b.1                      X

  B.3.b.2                      X

  B.3.c                        C

  B.3.d                        X

  B.3.e                        X

  B.3.f                        X

  B.3.g.1                      

  B.3.g.2                      

  B.3.g.3                      

  B.3.g.4                      

  B.3.g.5                      

  B.3.g.6                      

  B.3.g.7                      

  B.4.a                        

  B.4.b                        

  B.5.a                        [C^ZZ^]{.underline}

  B.5.b                        [C^ZZ^]{.underline}

  B.5.c                        [C^ZZ^]{.underline}

  B.6                          
  ---------------------------- ------------------------------------------

X Mandatory information

O Optional information

C This information need only be furnished when it has been used as a
basis to effect coordination with another administration

[^ZZ)^ Required for coordination under No. **S9.16A** or
**S9.16B**.]{.underline}

**Reasons:** This is consequential to proposed modifications to
footnotes **S5.441** and **S5.484A**. Administrations will need to
submit specific earth station information for earth stations associated
with geostationary-satellite networks in the fixed-satellite service
with maximum antenna gains as specified in the proposed addition to
Appendix **S5**.

**APPENDIX S5**

TABLE S5-1 (*continued*)

+---+--------+-----------+-------------+----------+---------+-----------+
|   | Refe   | Case      | Frequency   | Thr      | Calc    | Remarks   |
|   | rence\ |           | bands\      | eshold/c | ulation |           |
|   | of     |           | (and        | ondition | method  |           |
|   | A      |           | Region) of  |          |         |           |
|   | rticle |           | the service |          |         |           |
|   | S9     |           | for which   |          |         |           |
|   |        |           | co          |          |         |           |
|   |        |           | ordination\ |          |         |           |
|   |        |           | is sought   |          |         |           |
+---+--------+-----------+-------------+----------+---------+-----------+
|   | No.    | A         | The         | Con      | i\)     | The       |
|   | **S9.  | specific  | following   | ditions: | compare | th        |
|   | 16A**\ | earth     | frequency   |          | fr      | resholds/ |
|   | GSO    | station   | bands       | i)the    | equency | c         |
|   | earth  | in a      | subject to  | f        | bands   | onditions |
|   | st     | geos      | S**5.441**  | requency | and     | for       |
|   | ation/ | tationary | or          | bands    |         | coo       |
|   | NGSO   | satellite | *           | overlap  | ii\)    | rdination |
|   | system | network   | *S5.484A:** | and      | use the | do not    |
|   |        | in the    |             |          | maximum | apply to  |
|   |        | fixed-    | 10.7-11.7   | ii\) the | antenna | typical   |
|   |        | satellite | GHz         | s        | gain of | receive   |
|   |        | service   | (space      | atellite | the     | earth     |
|   |        | in        | -to-Earth), | network  | s       | stations  |
|   |        | respect   | 11.7-12.2   | using    | pecific | operating |
|   |        | of a      | GHz         | the      | receive | in        |
|   |        | non-geost | (spac       | geostat  | earth   | satellite |
|   |        | ationary- | e-to-Earth) | ionary-s | station | networks  |
|   |        | satellite | in Region   | atellite | in the  | using the |
|   |        | system in | 2,          | orbit    | ge      | geost     |
|   |        | the       | 12.         | has      | ostatio | ationary- |
|   |        | fixed-    | 2-12.75 GHz | specific | nary-sa | satellite |
|   |        | satellite | (spac       | receive  | tellite | orbit.    |
|   |        | service.  | e-to-Earth) | earth    | network |           |
|   |        |           | in Region   | stations | as      |           |
|   |        |           | 3,          | with an  | given   |           |
|   |        |           | 12.5-12.75  | antenna  | in      |           |
|   |        |           | GHz         | gain     | A       |           |
|   |        |           | (spac       | greater  | ppendix |           |
|   |        |           | e-to-Earth) | than or  | **S4**  |           |
|   |        |           | in Region   | equal to | data    |           |
|   |        |           | 1,          | 64 dBi   |         |           |
|   |        |           | 17          | for the  |         |           |
|   |        |           | .8-18.6 GHz | f        |         |           |
|   |        |           | (space      | requency |         |           |
|   |        |           | -to-Earth), | bands    |         |           |
|   |        |           | and         | 10       |         |           |
|   |        |           | 19.7-20.2   | .7-12.75 |         |           |
|   |        |           | GHz         | GHz or   |         |           |
|   |        |           | (spac       | 68 dBi   |         |           |
|   |        |           | e-to-Earth) | for the  |         |           |
|   |        |           |             | f        |         |           |
|   |        |           |             | requency |         |           |
|   |        |           |             | bands    |         |           |
|   |        |           |             | 1        |         |           |
|   |        |           |             | 7.8-18.6 |         |           |
|   |        |           |             | GHz and  |         |           |
|   |        |           |             | 1        |         |           |
|   |        |           |             | 9.7-20.2 |         |           |
|   |        |           |             | GHz      |         |           |
+---+--------+-----------+-------------+----------+---------+-----------+
|   | [No.   | [A        | [The        | [        | [i)     | [The      |
|   | **S9.  | non-geost | following   | Conditio | compare | t         |
|   | 16B**\ | ationary- | frequency   | ns:]{.un | fr      | hreshold/ |
|   | NGSO   | satellite | bands       | derline} | equency | condition |
|   | s      | system in | subject to  |          | bands   | for       |
|   | ystem/ | the       | S**5.441**  | [i)the   | an      | coo       |
|   | GSO    | fixed-    | or          | f        | d]{.und | rdination |
|   | earth  | satellite | **S         | requency | erline} | do not    |
|   | sta    | service   | 5.484A:**]{ | bands    |         | apply to  |
|   | tion/] | in        | .underline} | overlap  | [ii)    | typical   |
|   | {.unde | respect   |             | and]{.un | use the | receive   |
|   | rline} | of a      | [10.7-11.7  | derline} | maximum | earth     |
|   |        | specific  | GHz         |          | antenna | stations  |
|   |        | earth     | (space      | [ii) the | gain of | operating |
|   |        | station   | -to-Earth), | s        | the     | in        |
|   |        | in a      | 11.7-12.2   | atellite | s       | satellite |
|   |        | geos      | GHz         | network  | pecific | networks  |
|   |        | tationary | (spac       | using    | receive | using the |
|   |        | satellite | e-to-Earth) | the      | earth   | geost     |
|   |        | network   | in Region   | geostat  | station | ationary- |
|   |        | in the    | 2,          | ionary-s | in the  | satellite |
|   |        | fixed     | 12.         | atellite | ge      | o         |
|   |        | satellite | 2-12.75 GHz | orbit    | ostatio | rbit.]{.u |
|   |        | ser       | (spac       | has      | nary-sa | nderline} |
|   |        | vice.]{.u | e-to-Earth) | specific | tellite |           |
|   |        | nderline} | in Region   | receive  | network |           |
|   |        |           | 3,          | earth    | as      |           |
|   |        |           | 12.5-12.75  | stations | given   |           |
|   |        |           | GHz         | with an  | in      |           |
|   |        |           | (spac       | antenna  | A       |           |
|   |        |           | e-to-Earth) | gain     | ppendix |           |
|   |        |           | in Region   | greater  | S4      |           |
|   |        |           | 1,          | than or  | dat     |           |
|   |        |           | 17          | equal to | a]{.und |           |
|   |        |           | .8-18.6 GHz | 64 dBi   | erline} |           |
|   |        |           | (space      | for the  |         |           |
|   |        |           | -to-Earth), | f        |         |           |
|   |        |           | and         | requency |         |           |
|   |        |           | 19.7-20.2   | bands    |         |           |
|   |        |           | GHz         | 10       |         |           |
|   |        |           | (space-     | .7-12.75 |         |           |
|   |        |           | to-Earth)]{ | GHz or   |         |           |
|   |        |           | .underline} | 68 dBi   |         |           |
|   |        |           |             | for the  |         |           |
|   |        |           |             | f        |         |           |
|   |        |           |             | requency |         |           |
|   |        |           |             | bands    |         |           |
|   |        |           |             | 1        |         |           |
|   |        |           |             | 7.8-18.6 |         |           |
|   |        |           |             | GHz and  |         |           |
|   |        |           |             | 1        |         |           |
|   |        |           |             | 9.7-20.2 |         |           |
|   |        |           |             | GHz]{.un |         |           |
|   |        |           |             | derline} |         |           |
+---+--------+-----------+-------------+----------+---------+-----------+

**Reasons:** This is consequential to proposed changes to footnotes
**S5.441** and **S5.484A**. Earth stations with large antenna gains as
defined in the condition/threshold column are not adequately protected
by the EPFD levels contained in Table **S22-3** and case-by-case
coordination is required.

2\. Proposal to modify Articles **S5** and **S22** to clarify that there
was no allocation to NGSO FSS (Earth-to-space) in the band 17.3-17.8 GHz
in Region 2. Additionally, sharing studies done since WRC‑97 indicate
that the NGSO FSS is not compatible with the existing and allocated
services.

**S5.516** The use of the band[s]{.underline} 17.3-18.1 GHz by
geostationary-satellite systems in the fixed-satellite service
(Earth-to-space) is limited to feeder links for the
broadcasting-satellite service. For the use of the band 17.3-17.8 GHz in
Region 2 by feeder links for the broadcasting-satellite service in the
band 12.2-12.7 GHz, see Article** S11**. The use of the bands
17.3-18.1 GHz (Earth-to-space) in Regions 1 and 3 and 17.8-18.1 GHz
(Earth-to-space) in Region 2 by non-geostationary-satellite systems in
the fixed-satellite service is subject to the provisions of Resolution
**538 (WRC-97)**. [The use of the band 17.3-17.8 GHz in Region 2 by
systems in the fixed-satellite service (Earth‑to-space) is limited to
geostationary-satellites.]{.underline}

**Reasons:** Additional text to clarify the intent of the footnote.
There is no allocation in the band 17.3-17.8 GHz in Region 2 for NGSO
FSS (Earth-to-space). The possibility of an allocation was to be based
on sharing studies between the NGSO FSS and the existing and planned
services. Studies show that sharing between radiolocation stations and
NGSO FSS networks is not feasible due to severe interference from
operational radiolocation stations and these services are not
compatible. In Region 2, the band 17-3-17.8 GHz is allocated to the BSS
service beginning 1 April 2007. Studies show that transmit NGSO FSS
earth stations are not compatible with receive BSS earth stations.

**ARTICLE S22**

**Space services**

**Section I - Cessation of emissions**

TABLE **S22-1**

  ------------------- ---------- ------------------- -------------- ---------------------
  Frequency band      Antenna    Equivalent pfd                     Reference antenna\
  allocated to the    diameter   level\                             radiation pattern
  broadcasting-\      (cm)       (dB(W/m^2^/4kHz))                  
  satellite service              which may not be                   
                                 exceeded during the                
                                 percentage of time                 
                                 shown                              

                                 99.7%               100%           

  11.7-12.5 GHz in    30\        --172.3\            --169.3\       Recommendation\
  Region 1,\          60\        --183.3\            --170.3\       ITU‑R BO.1213
  11.7-12.2 GHz and\  90         --186.8             --170.3        
  12.5-12.75 GHz in                                                 
  Region 3                                                          

  12.2-12.7 GHz in    45\        --174.3\            --165.3\       § 3.7.2 of Annex 5 of
  Region 2            100\       --186.3\            --170.3\       Appendix **S30**
                      120\       --187.9\            --170.3\       
                      180        --191.4             --170.3        
  ------------------- ---------- ------------------- -------------- ---------------------

+------------------+---------------------------------------------------+
| ~~17.3-17.8 GHz  | ~~For further study^1)^~~                         |
| in Region 2~~    |                                                   |
+------------------+---------------------------------------------------+
| ~~^1)^ The       |                                                   |
| interference     |                                                   |
| from             |                                                   |
| n                |                                                   |
| on-geostationary |                                                   |
| fixed-satellite  |                                                   |
| service (non-GSO |                                                   |
| FSS) systems     |                                                   |
| into             |                                                   |
| geostationary    |                                                   |
| broadc           |                                                   |
| asting-satellite |                                                   |
| service (GSO     |                                                   |
| BSS) systems     |                                                   |
| operating in the |                                                   |
| frequency bands  |                                                   |
| 17.3-17.8 GHz    |                                                   |
| relates to the   |                                                   |
| two following    |                                                   |
| sharing          |                                                   |
| situations:~~    |                                                   |
|                  |                                                   |
| ~~-- non-GSO FSS |                                                   |
| transmit earth   |                                                   |
| station into GSO |                                                   |
| receive earth    |                                                   |
| station;~~       |                                                   |
|                  |                                                   |
| ~~-- GSO BSS     |                                                   |
| transmit space   |                                                   |
| station into     |                                                   |
| non-GSO FSS      |                                                   |
| receive space    |                                                   |
| stations.~~      |                                                   |
|                  |                                                   |
| ~~Both           |                                                   |
| situations need  |                                                   |
| to be studied,   |                                                   |
| in particular    |                                                   |
| since            |                                                   |
| coexistence of   |                                                   |
| receive BSS      |                                                   |
| earth stations   |                                                   |
| and large        |                                                   |
| numbers of       |                                                   |
| transmit non-GSO |                                                   |
| FSS terminals    |                                                   |
| would not be     |                                                   |
| feasible within  |                                                   |
| the same         |                                                   |
| country~~        |                                                   |
+------------------+---------------------------------------------------+

**Reasons:** WRC-97 did not allow NGSO FSS (space-to-Earth) systems to
operate in the band 17.3-17.8 GHz in Region 2. Equivalent pfd (EPFD)
levels, as given in **Table S22-1**, are only applicable to NGSO
space-to-Earth operations. In addition, there is no allocation in the
band 17.3-17.8 GHz in Region 2 for NGSO FSS (Earth-to-space). The
possibility of an allocation was to be based on sharing studies between
the NGSO FSS and the existing and planned services. In Region 2, the
band 17-3-17.8 GHz is allocated to the BSS service beginning 1 April
2007. Studies show that transmit NGSO FSS earth stations are not
compatible with receive BSS earth stations. Thus, this modification to
**Table S22-1** is also consequential to the proposed modification to
footnote **S5.516.**

3\. Proposal to NOC footnotes in Article S5 in the band 13.75-14.0 GHz
to maintain the delicate sharing situation between the fixed-satellite,
radiolocation, radionavigation, and space research/Earth
exploration-satellite services.

**S5.502** In the band 13.75 - 14 GHz, the e.i.r.p. of any emission from
an earth station in the fixed-satellite service shall be at least 68
dBW, and should not exceed 85 dBW, with a minimum antenna diameter of
4.5 metres. In addition the e.i.r.p., averaged over one second, radiated
by a station in the radiolocation or radionavigation services towards
the geostationary-satellite orbit shall not exceed 59 dBW.

**S5.503** In the band 13.75 - 14 GHz, geostationary space stations in
the space research service for which information for advance publication
has been received by the Bureau prior to 31 January 1992 shall operate
on an equal basis with stations in the fixed-satellite service; after
that date, new geostationary space stations in the space research
service will operate on a secondary basis. The e.i.r.p. density of
emissions from any earth station in the fixed-satellite service shall
not exceed 71 dBW in any 6 MHz band in the frequency range 13.772 -
13.778 GHz until those geostationary space stations in the space
research service for which information for advance publication has been
received by the Bureau prior to 31 January 1992 cease to operate in this
band. Automatic power control may be used to increase the e.i.r.p.
density above 71 dBW in any 6 MHz band in this frequency range to
compensate for rain attenuation, to the extent that the power-flux
density at the fixed-satellite service space station does not exceed the
value resulting from use of an e.i.r.p. of 71 dBW in any 6 MHz band in
clear sky conditions.

**Reasons**: To maintain the delicate sharing situation between the
fixed-satellite, radiolocation, radionavigation, and space
research/Earth exploration-satellite services, the requirements
contained in the above footnotes cannot change. The restrictions
specified in these footnotes are necessary for the protection of GSO FSS
carriers from radar interference and also minimize the possibility of
unacceptable interference to the radiolocation and radionavigation
services. Studies show that there is a significant potential for
unacceptable interference to NGSO FSS satellite receivers from
radiolocation stations in the 13.75-14.0 GHz band.

4\. Proposal to modify Article S22 to change the definition of Aggregate
PFD (APFD) to take into account the GSO FSS spacecraft antenna
directivity in the definition and, therefore, to change the terminology
from APFD to Equivalent PFD (EPFD~up~.

**Background Information**: WRC-97 incorporated into Article **S22**
provisional limits and a definition of an aggregate pfd (APFD) to
protect GSO FSS co-frequency satellite systems from Non-GSO FSS
Earth-to-space transmissions systems. The ITU-R JTG 4-9-11 was
established to examine these limits. The JTG agreed to modify the
definition of Aggregate PFD (APFD) to Equivalent PFD (EPFD~up~) by the
addition of the GSO FSS spacecraft antenna directivity to the
definition. This resulted in modification of APFD limits to EPFD~up~
limits.

**Proposal:**

TABLE **S22-4**     (WRC-97)

PART A

TABLE **S22-4**     (WRC-97)

PART B

  -----------------------------------------------------------------------
  **S22.5F** The [equivalent]{.underline} ~~aggregate~~ power flux
  density up^2^ produced at any point in the geostationary-satellite
  orbit by emissions from all [visible]{.underline} ~~the~~ earth
  stations in a non geostationary-satellite system in the fixed satellite
  service, for all conditions and for all methods of modulation, shall
  not exceed the limits given in Table **S22-4** for any percentage of
  time. These limits relate to the power flux-density which would be
  obtained under free space propagation conditions in the referenced
  bandwidth specified in Table **S22-4**.

  -----------------------------------------------------------------------

^3^ **S22.5D.1** The equivalent power flux-density is defined as the sum
of the power flux- densities produced at a point in the
geostationary-satellite orbit by all the earth stations of a
non-geostationary-satellite system. The equivalent power flux-density is
computed by means of the following formula:

$$\text{apfd} = \text{10} \cdot \text{log}_{\text{10}}\left\lbrack \sum_{i = 1}^{N_{e}}{\text{10}^{P_{i}/\text{10}} \cdot \frac{G_{t}\left( q_{i} \right)}{4pd_{i^{2}}}} \right\rbrack$$

$\text{EPFD}_{\text{up}} = \text{10}\text{log}\left( \sum_{i = 1}^{\text{Ne}}{\text{10}^{\frac{\text{Pi}}{\text{10}}} \ast \frac{G_{t}\left( \theta_{i} \right)}{4{\pi d}_{i^{2}}} \ast \left\lbrack \frac{G_{r}\left( \phi_{i} \right)}{G_{r\text{,max}}} \right\rbrack} \right)$

where:

*Ne*: number of earth stations in the non-geostationary-satellite system
with an elevation angle greater than or equal to 0°, from which the
point considered in the geostationary-satellite orbit is visible;

*i*: index of the earth station considered in the
non-geostationary-satellite system;

*Pi*: RF power at the input of the transmitting antenna of the earth
station considered in the non-geostationary-satellite system in dBW in
the reference bandwidth;

θ*i*: off-axis angle between the boresight of the earth station
considered in the non-geostationary-satellite system and the direction
of the point considered in the geostationary-satellite orbit;

*Gt*(θ*i*): transmit antenna gain (as a ratio) of the earth station
considered in the non-geostationary-satellite system in the direction of
the point considered in the geostationary-satellite orbit;

*di*: distance in metres between the earth station considered in the
non-geostationary-satellite system and the point considered in the
geostationary-satellite orbit;

*epfd*~up:~ equivalent power flux-density in dB(W/m^2^) in the reference
bandwidth;

G~r~(ϕ~I~): receive antenna gain of the geostationary satellite as a
function of the angle ϕ~I~;

[G~r\ max:~]{.underline} [maximum gain of the geostationary receive
antenna of the satellite.]{.underline}

**Reasons:** To more accurately define the interference level from
co-frequency NGSO FSS systems into receive GSO satellite antennas by
taking into account the GSO satellite antenna directivity. And to define
acceptable *epfd~up~* values for the 12.55-12.75 GHz, 12.75-13.25 GHz,
13.75-14.5 GHz, 27.5-28.6 GHz and 29.5-30.0 GHz.

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

# Proposals for Agenda Item 1.15.2

## to consider the addition of the space-to-space direction to the radionavigation-satellite service allocations in the bands 1 215 -1 260 and 1 559 - 1610 MHz

**Background:** Radionavigation-Satellite Service (RNSS) systems such as
the Global Positioning System and Global Navigation Satellite System are
primarily being used in the space-to-Earth direction to provide service
to terrestrial users. These systems are, however, also increasingly
being used in the space-to-space direction by spaceborne users for such
applications as spacecraft three-dimensional positioning and velocity
determination; three-axis attitude control; precise time
synchronization; precision orbit determination, and atmospheric science.
The use of RNSS signals is presently protected only through a
space-to-Earth allocation in the 1 215 - 1 260 and 1 559 - 1 610 MHz
bands. Recognizing current and future operational usage of spaceborne
RNSS receivers for scientific and commercial applications, it is
important to add the space-to-space direction to the existing RNSS
allocations so that these uses can be taken into consideration when
changes to the use of these bands are contemplated.

Interference studies have been conducted to assess the sensitivity of
spaceborne RNSS receivers to interference from radiolocation, Earth
exploration-satellite (active), space research (active), fixed, mobile
and aeronautical radionavigation services in the 1 215 - 1 260 MHz band;
from the aeronautical radionavigation and fixed services in the 1 559 -
1 610 MHz band; and also their sensitivity to intra-service interference
between radionavigation satellite service systems in these two bands.

The ITU-R has concluded that the addition of a space-to-space direction
to the 1 215 - 1 260 MHz and 1 559 - 1 610 MHz RNSS bands will not cause
any additional interference to other services since it involves no
change to the space-to-Earth transmissions.

Studies demonstrate that RNSS spaceborne receivers can operate
satisfactorily in the presence of interference caused by systems in
other services as well as other RNSS systems. Potential interference
from services in adjacent bands was also examined.

Existing coordination procedures are adequate for space-to-space
operations.

**Proposals:**

  -----------------------------------------------------------------------
  **MHz\
  1 215 -- 1 260**

  Allocation to Services
  -----------------------------------------------------------------------

  ----------------------- ------------------------ -----------------------
  Region 1                Region 2                 Region 3

  ----------------------- ------------------------ -----------------------

+-----------------------------------------------------------------------+
| **1 215-1 240** EARTH EXPLORATION-SATELLITE (active)                  |
|                                                                       |
| RADIOLOCATION                                                         |
|                                                                       |
| RADIONAVIGATION-SATELLITE (space-to-Earth)                            |
|                                                                       |
| > (space-to-space)                                                    |
|                                                                       |
| SPACE RESEARCH (active)                                               |
|                                                                       |
| > S5.329  S5.330  S5.331  S5.332                                      |
+-----------------------------------------------------------------------+
| **1 240-1 260** EARTH EXPLORATION-SATELLITE (active)                  |
|                                                                       |
| RADIOLOCATION                                                         |
|                                                                       |
| RADIONAVIGATION-SATELLITE (space-to-Earth)                            |
|                                                                       |
| > (space-to-space)                                                    |
|                                                                       |
| SPACE RESEARCH (active)                                               |
|                                                                       |
| Amateur                                                               |
|                                                                       |
| S5.329  S5.330  S5.331  S5.332  S5.334  S5.335                        |
+-----------------------------------------------------------------------+

**Reasons:** Provide an allocation for space-to-space use for RNSS,
which will ensure the protection of space-based RNSS receivers.

  ----------------------- ------------------------ -----------------------
  **MHz\                                           
  1 559 -- 1 610**                                 

  Allocation to Services                           

  Region 1                Region 2                 Region 3
  ----------------------- ------------------------ -----------------------

+-----------------------------------------------------------------------+
| **1 559 -- 1 610** AERONAUTICAL RADIONAVIGATION                       |
|                                                                       |
| RADIONAVIGATION-SATELLITE (space-to-Earth)                            |
|                                                                       |
| > (space-to-space)                                                    |
|                                                                       |
| S5.341 S5.355 S5.359 S5.363                                           |
+-----------------------------------------------------------------------+

**Reasons:** Provide an allocation for space-to-space use for RNSS,
which will ensure the protection of space-based RNSS receivers.

# Proposals for Agenda Item 1.16 {#proposals-for-agenda-item-1.16 .unnumbered}

## to consider allocations of frequency bands above 71 GHz to the earth-exploration satellite (passive) and radio astronomy services, taking into account Resolution 723; (20March99)

**Background Information:** The following tables depict an outline of
the United States work toward modifications to the allocation tables
above 71 GHz. These modifications will accommodate the requirements of
passive sensing systems in the radio astronomy and earth-exploration
satellite (passive) services. We want to stress that these tables
contain a very preliminary draft of proposed changes to the allocations
above 71 GHz. An appendix is included to provide additional background
information on our proposed changes.

# Proposals for Agenda Item 1.16 {#proposals-for-agenda-item-1.16-1 .unnumbered}

## to consider allocations of frequency bands above 71 GHz to the earth-exploration satellite (passive) and radio astronomy services, taking into account Resolution 723; (20March99)

**Background Information:** The following tables depict an outline of
the United States work toward modifications to the allocation tables
above 71 GHz. These modifications will accommodate the requirements of
passive sensing systems in the radio astronomy and earth-exploration
satellite (passive) services. We want to stress that these tables
contain a very preliminary draft of proposed changes to the allocations
above 71 GHz. An appendix is included to provide additional background
information on our proposed changes.

**Preliminary Draft Proposal for WRC-2000 (Agenda Item 1.16)**

+-----------------+-----------------+-----------------------------------+
| **GHz**         |                 |                                   |
|                 |                 |                                   |
| **71 - 126**    |                 |                                   |
+-----------------+-----------------+-----------------------------------+
| Current         | Proposed        | Reason for Change/Remarks         |
| Allocations     | Allocations     |                                   |
+-----------------+-----------------+-----------------------------------+
| Regions 1, 2, 3 | Regions 1, 2, 3 |                                   |
+-----------------+-----------------+-----------------------------------+
| **71- 74**      | **71 -** **74** | Uplinks and downlinks in 71-74    |
|                 |                 | GHz and 81-84 GHz bands           |
| FIXED-SATELLITE | ~~              | interchanged. Atmospheric         |
| (               | FIXED-SATELLITE | absorption slightly higher in     |
| Earth-to-space) | (Ea             | 71-74 GHz band than in 81-84 GHz  |
|                 | rth-to-space)~~ | band.                             |
| MOBILE          |                 |                                   |
|                 | [               | RAS Footnotes S5.149 and S5.556   |
| M               | FIXED-SATELLITE | deleted, in favor of allocations  |
| OBILE-SATELLITE | (space-to-Eart  | above 76 GHz.                     |
| (               | h)]{.underline} |                                   |
| Earth-To-Space) |                 | Reference to 72.77-72.91 GHz band |
|                 | MOBILE          | in S5.149 and S5.556 deleted.     |
| S5.149 S5.556   |                 |                                   |
|                 | ~~M             |                                   |
|                 | OBILE-SATELLITE |                                   |
|                 | (Ea             |                                   |
|                 | rth-To-Space)~~ |                                   |
|                 |                 |                                   |
|                 | [M              |                                   |
|                 | OBILE-SATELLITE |                                   |
|                 | (space-to-Eart  |                                   |
|                 | h)]{.underline} |                                   |
|                 |                 |                                   |
|                 | ~~S5.149        |                                   |
|                 | S5.556~~        |                                   |
+-----------------+-----------------+-----------------------------------+
| **74-75.5**     | **74 - ~~75.5~~ | BSS currently allocated to the    |
|                 | [76             | 84-86 GHz band relocated to this  |
| FIXED           | ]{.underline}** | band, to protect RAS above 76     |
|                 |                 | GHz. Atmospheric absorption       |
| FIXED-SATELLITE | ~~AMATEUR~~     | slightly higher in 74-76 GHz band |
| (               |                 | than in 84-86 GHz band            |
| Earth-to-space) | ~~AMAT          |                                   |
|                 | EUR-SATELLITE~~ | The proposed allocations in the   |
| MOBILE          |                 | 74-84 GHz range preserve a        |
|                 | [BROAD          | contiguous 10 GHz space research  |
| Space Research  | CASTING-SATELLI | downlink (secondary), required    |
| (               | TE]{.underline} | for space VLBI purposes.          |
| space-to-Earth) |                 |                                   |
|                 | FIXED           | Footnote S5.EEE protects current  |
|                 |                 | Amateur and Amateur-Satellite     |
|                 | ~~              | operations in 75.5-76 GHz band    |
|                 | FIXED-SATELLITE | until the year 200\[X\]           |
|                 | (Ea             |                                   |
|                 | rth-to-space)~~ | Footnote S5.561 modified to       |
|                 |                 | recognize change in BSS           |
|                 | [               | allocation.                       |
|                 | FIXED-SATELLITE |                                   |
|                 | (space-to       |                                   |
|                 | Eart            |                                   |
|                 | h)]{.underline} |                                   |
|                 |                 |                                   |
|                 | MOBILE          |                                   |
|                 |                 |                                   |
|                 | ~~M             |                                   |
|                 | OBILE-SATELLITE |                                   |
|                 | (Ea             |                                   |
|                 | rth-to-space)~~ |                                   |
|                 |                 |                                   |
|                 | Space Research  |                                   |
|                 | (               |                                   |
|                 | space-to-Earth) |                                   |
|                 |                 |                                   |
|                 | ~~S5.556~~ [MOD |                                   |
|                 | S5.5            |                                   |
|                 | 61]{.underline} |                                   |
|                 | [S5.E           |                                   |
|                 | EE]{.underline} |                                   |
+-----------------+-----------------+-----------------------------------+
| **75.5-76**     |                 |                                   |
|                 |                 |                                   |
| AMATEUR         |                 |                                   |
|                 |                 |                                   |
| AM              |                 |                                   |
| ATEUR-SATELLITE |                 |                                   |
|                 |                 |                                   |
| Space Research  |                 |                                   |
| (               |                 |                                   |
| space-to-Earth) |                 |                                   |
+-----------------+-----------------+-----------------------------------+

+-----------------+-----------------+-----------------------------------+
| **GHz**         |                 |                                   |
|                 |                 |                                   |
| **71 -126       |                 |                                   |
| (continued)**   |                 |                                   |
+-----------------+-----------------+-----------------------------------+
| Current         | Proposed        | Reason for Change/ Remarks        |
| Allocations     | Allocations     |                                   |
+-----------------+-----------------+-----------------------------------+
| Regions 1, 2, 3 | Regions 1, 2, 3 |                                   |
+-----------------+-----------------+-----------------------------------+
| **76-81**       | **76 -          | Radio astronomy allocation and    |
|                 | [77.5           | new footnote S5.ZZZ, along with   |
| RADIOLOCATION   | ]{.underline}** | RES ZZZ satisfy requirement for   |
|                 |                 | radio astronomy spectral line and |
| Amateur         | [RADIO          | wide band continuum observations  |
|                 | ASTRONOMY       | from a few remote locations,      |
| Am              | S5.Z            | world-wide.                       |
| ateur-Satellite | ZZ]{.underline} |                                   |
|                 |                 | Amateur and amateur-satellite     |
| Space Research  | RADIOLOCATION   | services shifted by 0.5 GHz, to   |
| (               |                 | accommodate BS, FSS and MSS       |
| space-to-Earth) | Amateur         | downlinks at lower portion of     |
|                 |                 | atmospheric window.               |
| S5.560          | Am              |                                   |
|                 | ateur-Satellite | No change in sharing between      |
|                 |                 | services, except for introduction |
|                 | Space Research  | of RAS allocation in band.        |
|                 | (               |                                   |
|                 | space-to-Earth) | S5.560 doesn\'t apply to this     |
|                 |                 | band.                             |
|                 | ~~S5.560~~      |                                   |
+-----------------+-----------------+-----------------------------------+
|                 | **77[.5         | No change in sharing between      |
|                 | ]{.underline} - | services, except for introduction |
|                 | [78             | of RAS allocation.                |
|                 | ]{.underline}** |                                   |
|                 |                 | Band added to those listed under  |
|                 | Amateur         | S5.149                            |
|                 |                 |                                   |
|                 | Am              | RAS added on a secondary basis.   |
|                 | ateur-Satellite |                                   |
|                 |                 |                                   |
|                 | [Radio          |                                   |
|                 | Astrono         |                                   |
|                 | my]{.underline} |                                   |
|                 |                 |                                   |
|                 | Space Research  |                                   |
|                 | (               |                                   |
|                 | space-to-Earth) |                                   |
|                 |                 |                                   |
|                 | [MOD            |                                   |
|                 | S5.1            |                                   |
|                 | 49]{.underline} |                                   |
+-----------------+-----------------+-----------------------------------+
|                 | **[78 -         | Radio astronomy allocation and    |
|                 | 81              | new footnote S5.ZZZ, along with   |
|                 | ]{.underline}** | RES ZZZ, satisfy requirement for  |
|                 |                 | radio astronomy spectral line and |
|                 | [RADIO          | wide band continuum observations  |
|                 | ASTRONOMY       | from a few remote locations       |
|                 | S5.Z            | world-wide.                       |
|                 | ZZ]{.underline} |                                   |
|                 |                 | No change in sharing between      |
|                 | RADIOLOCATION   | services, except for introduction |
|                 |                 | of RAS allocation in band.        |
|                 | Amateur         |                                   |
|                 |                 | Band added to footnote S5.149.    |
|                 | Am              |                                   |
|                 | ateur-Satellite |                                   |
|                 |                 |                                   |
|                 | Space Research  |                                   |
|                 | (               |                                   |
|                 | space-to-Earth) |                                   |
|                 |                 |                                   |
|                 | S5.560 [MOD     |                                   |
|                 | S5.1            |                                   |
|                 | 49]{.underline} |                                   |
+-----------------+-----------------+-----------------------------------+

+-----------------+-----------------+----------------------------------+
| **GHz**         |                 |                                  |
|                 |                 |                                  |
| **71 -126       |                 |                                  |
| (continued)**   |                 |                                  |
+-----------------+-----------------+----------------------------------+
| Current         | Proposed        | Reason for Change/ Remarks       |
| Allocations     | Allocations     |                                  |
+-----------------+-----------------+----------------------------------+
| Regions 1, 2, 3 | Regions 1, 2, 3 |                                  |
+-----------------+-----------------+----------------------------------+
| **81-84**       | **81 - 84**     | Direction of satellite downlinks |
|                 |                 | reversed, to allow radio         |
| FIXED           | FIXED           | astronomy observations. Uplink   |
|                 |                 | paired with 71-74 GHz downlink.  |
| FIXED-SATELLITE | ~~FIXED         |                                  |
| (               | SATELLITE       | Radio astronomy allocation and   |
| space-to-Earth) | (sp             | new footnote S5.ZZZ, along with  |
|                 | ace-to-Earth)~~ | RES ZZZ, satisfy requirement for |
| MOBILE          |                 | radio astronomy spectral line    |
|                 | [               | and wide band continuum          |
| M               | FIXED-SATELLITE | observations from a few remote   |
| OBILE-SATELLITE | (Earth-to-spac  | locations, world-wide.           |
| (               | e)]{.underline} |                                  |
| space-to-Earth) |                 | Footnote S5.DDD added to         |
|                 | MOBILE          | maintain amount of secondary     |
| Space Research  |                 | amateur and amateur-satellite    |
| (               | M               | allocation.                      |
| space-to-Earth) | OBILE-SATELLITE |                                  |
|                 | (               | Band added to footnote S5.149.   |
|                 | Earth-to-space) |                                  |
|                 |                 |                                  |
|                 | [RADIO          |                                  |
|                 | ASTRONOMY       |                                  |
|                 | S5.Z            |                                  |
|                 | ZZ]{.underline} |                                  |
|                 |                 |                                  |
|                 | [Space Research |                                  |
|                 | (space-to-Eart  |                                  |
|                 | h)]{.underline} |                                  |
|                 |                 |                                  |
|                 | ~~S5.561~~ [MOD |                                  |
|                 | S5.149          |                                  |
|                 | S5.D            |                                  |
|                 | DD]{.underline} |                                  |
+-----------------+-----------------+----------------------------------+
| **84-86**       | **84 - 86**     | Broadcasting Satellite           |
|                 |                 | allocation relocated to 74-76    |
| FIXED           | BROADCASTING    | GHz band.                        |
|                 |                 |                                  |
| MOBILE          | ~~BROADCAST     | Direction of satellite downlinks |
|                 | ING-SATELLITE~~ | reversed, to allow radio         |
| BROADCASTING    |                 | astronomy observations. Uplink   |
|                 | FIXED           | paired with 74-76 GHz downlink.  |
| BROADCA         |                 |                                  |
| STING-SATELLITE | [               | Radio astronomy allocation and   |
|                 | FIXED-SATELLITE | new footnote S5.ZZZ, along with  |
| S5.561          | (Earth-to-spac  | RES ZZZ, satisfy requirement for |
|                 | e)]{.underline} | radio astronomy spectral line    |
|                 |                 | and wide band continuum          |
|                 | MOBILE          | observations from a few remote   |
|                 |                 | locations, world-wide.           |
|                 | [RADIO          |                                  |
|                 | ASTRONOMY       | Band added to footnote S5.149.   |
|                 | S5.Z            |                                  |
|                 | ZZ]{.underline} |                                  |
|                 |                 |                                  |
|                 | [MOD            |                                  |
|                 | S5.1            |                                  |
|                 | 49]{.underline} |                                  |
|                 | S5.561          |                                  |
+-----------------+-----------------+----------------------------------+
| **86-92**       | **86-92**       | **NOC**                          |
|                 |                 |                                  |
| EARTH           | EARTH           | This band is of crucial          |
| EXPLORATION     | EXPLORATION     | importance to the RAS,           |
| SATELLITE       | SATELLITE       | SR(passive) and EES (passive)    |
| (passive)       | (passive)       | services; it is the window for   |
|                 |                 | the band around 118.75 GHz. No   |
| RADIO ASTRONOMY | RADIO ASTRONOMY | active services are acceptable   |
|                 |                 | in this band.                    |
| SPACE RESEARCH  | SPACE RESEARCH  |                                  |
| (passive)       | (passive)       |                                  |
|                 |                 |                                  |
| S5.340          | S5.340          |                                  |
+-----------------+-----------------+----------------------------------+
| **92-94**       | **92-94**       | Radio astronomy allocation and   |
|                 |                 | new footnote S5.ZZZ, along with  |
| FIXED           | FIXED           | RES ZZZ satisfy requirement for  |
|                 |                 | radio astronomy spectral line    |
| FIXED-SATELLITE | ~~              | and wide band continuum          |
| (               | FIXED-SATELLITE | observations from a few remote   |
| Earth-to-space) | (Ea             | locations world-wide. RAS        |
|                 | rth-to-space)~~ | interest up to now recognised    |
| MOBILE          |                 | via footnote.                    |
|                 | MOBILE          |                                  |
| RADIOLOCATION   |                 | FSS (Earth-to-space) allocation  |
|                 | [RADIO          | no longer needed to balance      |
| S5.149 S5.556   | ASTRONOMY       | 102-105 GHz, relocated to 71-76  |
|                 | S5.Z            | GHz band.                        |
|                 | ZZ]{.underline} |                                  |
|                 |                 | Band added to those listed under |
|                 | RADIOLOCATION   | S5.149, footnote S5.556 no       |
|                 |                 | longer necessary.                |
|                 | MOD S5.149      |                                  |
|                 | ~~S5.556~~      |                                  |
+-----------------+-----------------+----------------------------------+

+-----------------+-----------------+-----------------------------------+
| **GHz**         |                 |                                   |
|                 |                 |                                   |
| **71 -126       |                 |                                   |
| (continued)**   |                 |                                   |
+-----------------+-----------------+-----------------------------------+
| Current         | Proposed        | Reason for Change/ Remarks        |
| Allocations     | Allocations     |                                   |
+-----------------+-----------------+-----------------------------------+
| Regions 1, 2, 3 | Regions 1, 2, 3 |                                   |
+-----------------+-----------------+-----------------------------------+
| **94-94.1**     | **94-94.1**     | Radio astronomy secondary to      |
|                 |                 | active services.                  |
| RADIOLOCATION   | EARTH           |                                   |
|                 | EXPLOR          | No change in sharing between      |
| EARTH           | ATION-SATELLITE | services, except for introduction |
| EXPLOR          | (active)        | of RAS allocation in band.        |
| ATION-SATELLITE |                 |                                   |
| (active)        | RADIOLOCATION   |                                   |
|                 |                 |                                   |
| SPACE RESEARCH  | SPACE RESEARCH  |                                   |
| (active)        | (active)        |                                   |
|                 |                 |                                   |
| S 5.562         | [Radio          |                                   |
|                 | Astrono         |                                   |
|                 | my]{.underline} |                                   |
|                 |                 |                                   |
|                 | S 5.562         |                                   |
+-----------------+-----------------+-----------------------------------+
| **94.1-95**     | **94.1-95**     | Radio astronomy allocation and    |
|                 |                 | new footnote S5.ZZZ, along with   |
| FIXED           | FIXED           | RES ZZZ satisfy requirement for   |
|                 |                 | radio astronomy spectral line and |
| FIXED-SATELLITE | ~~              | wide band continuum observations  |
| (               | FIXED-SATELLITE | from a few remote locations       |
| Earth-to-space) | (Ea             | world-wide.                       |
|                 | rth-to-space)~~ |                                   |
| MOBILE          |                 | No change in sharing between      |
|                 | MOBILE          | services, except for introduction |
| RADIOLOCATION   |                 | of RAS allocation in band.        |
|                 | [RADIO          |                                   |
| S5. 149 S5.556  | ASTRONOMY       | Footnote S5.556 is not relevant   |
|                 | S.5.Z           | to this band and should have been |
|                 | ZZ]{.underline} | suppressed as a consequence of    |
|                 |                 | WRC-97 actions.                   |
|                 | RADIOLOCATION   |                                   |
|                 |                 | Band added to those listed under  |
|                 | MOD S5. 149     | S5.149. Footnote S5.556 no longer |
|                 | ~~S5.556~~      | necessary.                        |
|                 |                 |                                   |
|                 |                 | FSS (Earth-to-space) allocation   |
|                 |                 | no longer needed to balance       |
|                 |                 | 102-105 GHz, relocated to 71-76   |
|                 |                 | GHz band.                         |
+-----------------+-----------------+-----------------------------------+
| **95-100**      | **95-100**      | Radio astronomy allocation and    |
|                 |                 | new footnote S5.ZZZ, along with   |
| MOBILE S5.553   | [FIXED MOD      | RES ZZZ satisfy requirement for   |
|                 | S5.5            | radio astronomy spectral line and |
| M               | 53]{.underline} | wide band continuum observations  |
| OBILE-SATELLITE |                 | from a few remote locations,      |
|                 | MOBILE          | world-wide. Primary allocation to |
| RADIONAVIGATION | [M              | RAS at 97.88-98.08 GHz (footnote  |
|                 | OD]{.underline} | S5.555), for observations of      |
| RADIONAVIG      | S5.553          | 97.98 GHz CS line, no longer      |
| ATION-SATELLITE |                 | needed.                           |
|                 | ~~MOB           |                                   |
| Radiolocation   | ILE-SATELLITE~~ | Radiolocation upgraded to         |
|                 |                 | primary, consequential to the RAS |
| S5.149 S5.554   | [RADIO          | upgrade.                          |
| S5.555          | ASTRONOMY       |                                   |
|                 | S5.Z            | Mobile Satellite Service cannot   |
|                 | ZZ]{.underline} | share with the Radiolocation      |
|                 |                 | service.                          |
|                 | [RADIOLOCATI    |                                   |
|                 | ON]{.underline} | Band added to those listed under  |
|                 |                 | S5.149.                           |
|                 | RADIONAVIGATION |                                   |
|                 |                 | Band deleted from footnote        |
|                 | RADIONAVIG      | S5.555, which allocates the       |
|                 | ATION-SATELLITE | 97.88-98.08 subband to the RAS on |
|                 |                 | a primary basis.                  |
|                 | ~~              |                                   |
|                 | Radiolocation~~ | Fixed allocation added, to keep   |
|                 |                 | FS totals unchanged.              |
|                 | MOD S5.149      |                                   |
|                 | S5.554          | S5.553 modified to include        |
|                 | ~~S5.555~~      | stations in the fixed service     |
+-----------------+-----------------+-----------------------------------+

+-----------------+-----------------+-----------------------------------+
| **GHz**         |                 |                                   |
|                 |                 |                                   |
| **71 -126       |                 |                                   |
| (continued)**   |                 |                                   |
+-----------------+-----------------+-----------------------------------+
| Current         | Proposed        | Reason for Change/ Remarks        |
| Allocations     | Allocations     |                                   |
+-----------------+-----------------+-----------------------------------+
| Regions 1, 2, 3 | Regions 1, 2, 3 |                                   |
+-----------------+-----------------+-----------------------------------+
| **100 -- 102**  | **100 -- 102**  | Radio astronomy allocation and    |
|                 |                 | new footnote S5.ZZZ, along with   |
| EARTH           | EARTH           | RES ZZZ satisfy requirement for   |
| EXPLOR          | EXPLOR          | radio astronomy spectral line and |
| ATION-SATELLITE | ATION-SATELLITE | wide band continuum observations  |
| (passive)       | (passive)       | from a few remote locations,      |
|                 |                 | world-wide.                       |
| FIXED           | FIXED           |                                   |
|                 |                 | No change in sharing between      |
| MOBILE          | MOBILE          | services, except for introduction |
|                 |                 | of RAS allocation in band.        |
| SPACE RESEARCH  | [RADIO          |                                   |
| (passive)       | ASTRONOMY       | Used by EES (passive) for limb    |
|                 | S5.Z            | sounding of atmospheric           |
| S5.341          | ZZ]{.underline} | constituents (NO line at 100.49   |
|                 |                 | GHz).                             |
|                 | SPACE RESEARCH  |                                   |
|                 | (passive)       | Band added to those listed under  |
|                 |                 | S5.149                            |
|                 | [MOD            |                                   |
|                 | S5.1            |                                   |
|                 | 49]{.underline} |                                   |
|                 | S5.341          |                                   |
+-----------------+-----------------+-----------------------------------+
| **102-105**     | **102-105**     | FSS allocation moved to 74-76 GHz |
|                 |                 | band, to eliminate downlinks in   |
| FIXED           | FIXED           | the middle of the atmospheric     |
|                 |                 | window. Atmospheric absorption in |
| FIXED-SATELLITE | ~~              | these two windows is close.       |
| (               | FIXED-SATELLITE |                                   |
| space-to-Earth) | (sp             | Radio astronomy allocation and    |
|                 | ace-to-Earth)~~ | new footnote S5.ZZZ, along with   |
| MOBILE          |                 | RES ZZZ satisfy requirement for   |
|                 | MOBILE          | radio astronomy spectral line and |
| S5.341          |                 | wide band continuum observations  |
|                 | [RADIO          | from a few remote locations,      |
|                 | ASTRONOMY       | world-wide.                       |
|                 | S5.Z            |                                   |
|                 | ZZ]{.underline} | Band added to those listed under  |
|                 |                 | S5.149                            |
|                 | [MOD            |                                   |
|                 | S5.1            |                                   |
|                 | 49]{.underline} |                                   |
|                 | S5.341          |                                   |
+-----------------+-----------------+-----------------------------------+

+-----------------+----------------+----------------------------------+
| **GHz**         |                |                                  |
|                 |                |                                  |
| **71 -126       |                |                                  |
| (continued)**   |                |                                  |
+-----------------+----------------+----------------------------------+
| Current         | Proposed       | Reason for Change/ Remarks       |
| Allocations     | Allocations    |                                  |
+-----------------+----------------+----------------------------------+
| Regions 1, 2, 3 | Regions 1, 2,  |                                  |
|                 | 3              |                                  |
+-----------------+----------------+----------------------------------+
| **105-116**     | **             | Passive sensors have no known    |
|                 | 105 -- ~~116~~ | use for, and do not need the     |
| EARTH           | [109.5]        | band 105-109.5 GHz.              |
| EXPLOR          | {.underline}** |                                  |
| ATION-SATELLITE |                | Addition of the fixed and mobile |
| (passive)       | ~~EARTH        | services,relocated from 116 -    |
|                 | EXPLORA        | 122.5 GHz band, where deletion   |
| RADIO ASTRONOMY | TION-SATELLITE | of these services is needed to   |
|                 | (passive)~~    | protect essential passive sensor |
| SPACE RESEARCH  |                | operations                       |
| (passive)       | [FIXE          |                                  |
|                 | D]{.underline} | Band no longer passive,          |
| S5.340 S5.341   |                | consequently S5.340 should be    |
|                 | [MOBIL         | deleted.                         |
|                 | E]{.underline} |                                  |
|                 |                | Band added to those included     |
|                 | RADIO          | under S5.149, to reflect need to |
|                 | ASTRONOMY      | protect radio astronomy in a     |
|                 |                | band no longer passive.          |
|                 | SPACE RESEARCH |                                  |
|                 | (passive)      | Footnote S5.CCC limits Space     |
|                 | S5.CCC         | Research (passive) allocation to |
|                 |                | space-based radio astronomy in   |
|                 | ~~S5.340~~     | this band.                       |
|                 | [MOD           |                                  |
|                 | S5.14          |                                  |
|                 | 9]{.underline} |                                  |
|                 | S5.341         |                                  |
+-----------------+----------------+----------------------------------+
|                 | **[109.5       | **[NOC]{.underline}**            |
|                 | - 111.8]       |                                  |
|                 | {.underline}** | Ozone line at 110.8 GHz used for |
|                 |                | microwave limb sounding.         |
|                 | EARTH          |                                  |
|                 | EXPLORA        | The 109.5-111.8 GHz band is of   |
|                 | TION-SATELLITE | vital importance to radio        |
|                 | (passive)      | astronomy for observations of    |
|                 |                | the CO lines at 109.8 and 110.2  |
|                 | RADIO          | GHz, and for continuum           |
|                 | ASTRONOMY      | observations.                    |
|                 |                |                                  |
|                 | SPACE RESEARCH |                                  |
|                 | (passive)      |                                  |
|                 |                |                                  |
|                 | S5.340 S5.341  |                                  |
+-----------------+----------------+----------------------------------+
|                 | **[111.8 -     | Passive sensors do not need the  |
|                 | 114.25]        | band 111.8\--114.25 GHz.         |
|                 | {.underline}** |                                  |
|                 |                | Addition of the fixed and mobile |
|                 | ~~EARTH        | services, relocated from 116 -   |
|                 | EXPLORA        | 122.5 GHz band, where deletion   |
|                 | TION-SATELLITE | of these services is needed to   |
|                 | (passive)~~    | protect essential passive sensor |
|                 |                | operations.                      |
|                 | [FIXE          |                                  |
|                 | D]{.underline} | Band added to those included     |
|                 |                | under S5.149, to reflect need to |
|                 | [MOBIL         | protect radio astronomy in a     |
|                 | E]{.underline} | band no longer passive.          |
|                 |                |                                  |
|                 | RADIO          | New footnote S5.CCC limits Space |
|                 | ASTRONOMY      | Research (passive) allocation to |
|                 |                | space-based radio astronomy in   |
|                 | SPACE RESEARCH | this band.                       |
|                 | (passive)      |                                  |
|                 | [S5.CC         |                                  |
|                 | C]{.underline} |                                  |
|                 |                |                                  |
|                 | S5.341 [MOD    |                                  |
|                 | S5.14          |                                  |
|                 | 9]{.underline} |                                  |
+-----------------+----------------+----------------------------------+
|                 | **[114.25]{.un | **[NOC]{.underline}**            |
|                 | derline}-116** |                                  |
|                 |                | The band 114.25-116 GHz is of    |
|                 | EARTH          | vital importance to radio        |
|                 | EXPLORA        | astronomy for observations of    |
|                 | TION-SATELLITE | the 115.3 GHz CO line.           |
|                 | (passive)      |                                  |
|                 |                |                                  |
|                 | RADIO          |                                  |
|                 | ASTRONOMY      |                                  |
|                 |                |                                  |
|                 | SPACE RESEARCH |                                  |
|                 | (passive)      |                                  |
|                 |                |                                  |
|                 | S5.340 S5.341  |                                  |
+-----------------+----------------+----------------------------------+

+-----------------+----------------+----------------------------------+
| **GHz**         |                |                                  |
|                 |                |                                  |
| **71 -126       |                |                                  |
| (continued)**   |                |                                  |
+-----------------+----------------+----------------------------------+
| Current         | Proposed       | Reason for Change/ Remarks       |
| Allocations     | Allocations    |                                  |
+-----------------+----------------+----------------------------------+
| Regions 1, 2, 3 | Regions 1, 2,  |                                  |
|                 | 3              |                                  |
+-----------------+----------------+----------------------------------+
| **              | **116          | This band is of crucial          |
| 116 -- 119.98** | -119.98**      | importance for passive sensing   |
|                 |                | as it is the lower flank of the  |
| EARTH           | EARTH          | oxygen absorption band, with     |
| EXPLOR          | EXPLORA        | peak at 118.75 GHz. The          |
| ATION-SATELLITE | TION-SATELLITE | associated reference window is   |
| (passive)       | (passive)      | the 86-92 GHz band.Fixed and     |
|                 |                | mobile services moved down to    |
| FIXED           | ~~FIXED~~      | 105 - 109.5 GHz, as sharing with |
|                 |                | passive sensors would severely   |
| INTER-SATELLITE | I              | restrict their operation in this |
|                 | NTER-SATELLITE | band. ISS needs to be limited by |
| MOBILE S5.558   | [S5.XX         | footnote S5.XXX to links between |
|                 | X]{.underline} | GSO satellites only, with pfd    |
| SPACE RESEARCH  |                | limits as specified in sharing   |
| (passive)       | ~~MOBILE       | studies.                         |
|                 | S5.558~~       |                                  |
| S5.138 S5.341   |                | S5.138 deleted, it is considered |
|                 | SPACE RESEARCH | to be a misprint in the RR.      |
|                 | (passive)      |                                  |
|                 |                |                                  |
|                 | ~~S5.138~~     |                                  |
|                 | S5.341         |                                  |
+-----------------+----------------+----------------------------------+

+-----------------+-----------------+-----------------------------------+
| **GHz**         |                 |                                   |
|                 |                 |                                   |
| **71 -126       |                 |                                   |
| (continued)**   |                 |                                   |
+-----------------+-----------------+-----------------------------------+
| Current         | Proposed        | Reason for Change / Remarks       |
| Allocations     | Allocations     |                                   |
+-----------------+-----------------+-----------------------------------+
| Regions 1, 2, 3 | Regions 1, 2, 3 |                                   |
+-----------------+-----------------+-----------------------------------+
| **119           | **119           | This band is of crucial           |
| .98 -- 120.02** | .98 -- 120.02** | importance for passive sensing,   |
|                 |                 | as it is part of the upper flank  |
| EARTH           | EARTH           | of the oxygen absorption band,    |
| EXPLOR          | EXPLOR          | with peak at 118.75 GHz. The      |
| ATION-SATELLITE | ATION-SATELLITE | associated reference window is    |
| (passive)       | (passive)       | the 86-92 GHz band.Fixed and      |
|                 |                 | mobile services moved down to     |
| FIXED           | ~~FIXED~~       | 105 - 109.5 GHz, as sharing with  |
|                 |                 | passive sensors would severely    |
| INTER-SATELLITE | INTER-SATELLITE | restrict them in this band.       |
|                 | [S5.X           |                                   |
| MOBILE S5.558   | XX]{.underline} | ISS needs to be limited by        |
|                 |                 | footnote S5.XXX to links between  |
| SPACE RESEARCH  | ~~MOBILE        | GSO satellites only, with pfd     |
| (passive)       | S5.558~~        | limits as specified in sharing    |
|                 |                 | studies.                          |
| Amateur         | SPACE RESEARCH  |                                   |
|                 | (passive)       | Secondary allocation to amateur   |
| S5.138 S5.341   |                 | service is also moved to          |
|                 | ~~Amateur~~     | 122.5-126 GHz band, to avoid      |
|                 |                 | interference to passive sensors.  |
|                 | ~~S5.138~~      |                                   |
|                 | S5.341          |                                   |
+-----------------+-----------------+-----------------------------------+
| **              | **12            | This band is of crucial           |
| 120.02 -- 126** | 0.02 -- [122.25 | importance for passive sensing,   |
|                 | ]{.underline}** | as it is the lower flank of the   |
| EARTH           |                 | oxygen absorption band, with peak |
| EXPLOR          | EARTH           | at 118.75 GHz. The associated     |
| ATION-SATELLITE | EXPLOR          | reference window is the 86-92 GHz |
| (passive)       | ATION-SATELLITE | band. Fixed and mobile services   |
|                 | (passive)       | moved down to 105 - 109.5 GHz, as |
| FIXED           |                 | sharing with passive sensors      |
|                 | ~~FIXED~~       | would severely restrict them in   |
| INTER-SATELLITE |                 | this band.                        |
|                 | INTER-SATELLITE |                                   |
| MOBILE S5.558   | [S5.X           | ISS needs to be limited by        |
|                 | XX]{.underline} | footnote S5.XXX to links between  |
| SPACE RESEARCH  |                 | GSO satellites only, with pfd     |
| (passive)       | ~~MOBILE        | limits as specified in sharing    |
|                 | S5.558~~        | studies.                          |
| S5.138 S5.341   |                 |                                   |
|                 | SPACE RESEARCH  |                                   |
|                 | (passive)       |                                   |
|                 |                 |                                   |
|                 | S5.138          |                                   |
|                 | ~~S5.341~~      |                                   |
+-----------------+-----------------+-----------------------------------+
|                 | **[122.25 -     | Band not needed by passive        |
|                 | 123             | sensors.                          |
|                 | ]{.underline}** |                                   |
|                 |                 | Secondary amateur service         |
|                 | ~~EARTH         | allocation added o compensate     |
|                 | EXPLOR          | loss at 119.98-120.02 GHz         |
|                 | ATION-SATELLITE |                                   |
|                 | (passive)~~     |                                   |
|                 |                 |                                   |
|                 | FIXED           |                                   |
|                 |                 |                                   |
|                 | INTER-SATELLITE |                                   |
|                 |                 |                                   |
|                 | MOBILE          |                                   |
|                 | [M              |                                   |
|                 | OD]{.underline} |                                   |
|                 | S5.558          |                                   |
|                 |                 |                                   |
|                 | ~~SPACE         |                                   |
|                 | RESEARCH        |                                   |
|                 | (passive)~~     |                                   |
|                 |                 |                                   |
|                 | [Amate          |                                   |
|                 | ur]{.underline} |                                   |
|                 |                 |                                   |
|                 | S5.138          |                                   |
|                 | ~~S5.341~~      |                                   |
+-----------------+-----------------+-----------------------------------+

+----------------+----------------+---+-----------------------------------+
| **GHz**        |                |   |                                   |
|                |                |   |                                   |
| **126-200**    |                |   |                                   |
+----------------+----------------+---+-----------------------------------+
| Current        | Proposed       | R |                                   |
| Allocations    | Allocations    | e |                                   |
|                |                | a |                                   |
|                |                | s |                                   |
|                |                | o |                                   |
|                |                | n |                                   |
|                |                | f |                                   |
|                |                | o |                                   |
|                |                | r |                                   |
|                |                | C |                                   |
|                |                | h |                                   |
|                |                | a |                                   |
|                |                | n |                                   |
|                |                | g |                                   |
|                |                | e |                                   |
|                |                | / |                                   |
|                |                | R |                                   |
|                |                | e |                                   |
|                |                | m |                                   |
|                |                | a |                                   |
|                |                | r |                                   |
|                |                | k |                                   |
|                |                | s |                                   |
+----------------+----------------+---+-----------------------------------+
| Regions 1,2,3  | Regions 1,2,3  |   |                                   |
+----------------+----------------+---+-----------------------------------+
| **126 - 134**  | **[123]        |   | Satellite downlinks from 141-153  |
|                | {.underline} - |   | GHz band moved here to avoid      |
| FIXED          | [130]          |   | interference to the Radio         |
|                | {.underline}** |   | Astronomy Service.                |
| I              |                |   |                                   |
| NTER-SATELLITE | ~~EARTH        |   | Fixed, mobile and radiolocation   |
|                | EXPLORATION    |   | allocations moved to 141-153 GHz  |
| MOBILE S5. 558 | SATELLITE      |   | band.                             |
|                | (passive)~~    |   |                                   |
| RADIOLOCATION  |                |   | Sharing conditions between the    |
| S5. 559        | ~~FIXED~~      |   | ISS and the FSS, MSS, RNS and     |
|                |                |   | RNSS services need to be          |
|                | [              |   | developed, but no imminent use of |
|                | FIXED-SATELLIT |   | the band by these services is     |
|                | E]{.underline} |   | contemplated.                     |
|                |                |   |                                   |
|                | ~~INT          |   | MSS directional indicator left    |
|                | ER-SATELLITE~~ |   | undefined.                        |
|                |                |   |                                   |
|                | ~~MOBILE       |   | Footnote S5.554 suitably          |
|                | S5.558~~       |   | modified.                         |
|                |                |   |                                   |
|                | [M             |   | Band deleted from S5.559          |
|                | OBILE-SATELLIT |   |                                   |
|                | E]{.underline} |   |                                   |
|                |                |   |                                   |
|                | ~              |   |                                   |
|                | ~RADIOLOCATION |   |                                   |
|                | S5. 559~~      |   |                                   |
|                |                |   |                                   |
|                | [              |   |                                   |
|                | RADIONAVIGATIO |   |                                   |
|                | N]{.underline} |   |                                   |
|                |                |   |                                   |
|                | [RADIONAVIG    |   |                                   |
|                | ATION-SATELLIT |   |                                   |
|                | E]{.underline} |   |                                   |
|                |                |   |                                   |
|                | ~~SPACE        |   |                                   |
|                | RESEARCH       |   |                                   |
|                | (passive)~~    |   |                                   |
|                |                |   |                                   |
|                | [Radio         |   |                                   |
|                | Astronom       |   |                                   |
|                | y]{.underline} |   |                                   |
|                |                |   |                                   |
|                | ~~S5.138       |   |                                   |
|                | S5.341~~ [MOD  |   |                                   |
|                | S5.55          |   |                                   |
|                | 4]{.underline} |   |                                   |
+----------------+----------------+---+-----------------------------------+
|                | **[130         |   | Radio astronomy allocation and    |
|                | -]{.underline} |   | new footnote S5.ZZZ, along with   |
|                | 134**          |   | RES ZZZ satisfy requirement for   |
|                |                |   | radio astronomy spectral line and |
|                | FIXED          |   | wide band continuum observations  |
|                |                |   | from a few remote locations       |
|                | I              |   | world-wide.                       |
|                | NTER-SATELLITE |   |                                   |
|                |                |   | Footnote S5.558 modified to       |
|                | MOBILE         |   | reflect new mobile service band   |
|                | [MO            |   | limit.                            |
|                | D]{.underline} |   |                                   |
|                | S5.558         |   |                                   |
|                |                |   |                                   |
|                | [RADIO         |   |                                   |
|                | ASTRONOMY      |   |                                   |
|                | S5.ZZ          |   |                                   |
|                | Z]{.underline} |   |                                   |
|                |                |   |                                   |
|                | ~              |   |                                   |
|                | ~RADIOLOCATION |   |                                   |
|                | S5.559~~       |   |                                   |
+----------------+----------------+---+-----------------------------------+

+----------------+----------------+---+-----------------------------------+
| **GHz**        |                |   |                                   |
|                |                |   |                                   |
| **126-200      |                |   |                                   |
| (continued)**  |                |   |                                   |
+----------------+----------------+---+-----------------------------------+
| Current        | Proposed       | R |                                   |
| Allocations    | Allocations    | e |                                   |
|                |                | a |                                   |
|                |                | s |                                   |
|                |                | o |                                   |
|                |                | n |                                   |
|                |                | f |                                   |
|                |                | o |                                   |
|                |                | r |                                   |
|                |                | C |                                   |
|                |                | h |                                   |
|                |                | a |                                   |
|                |                | n |                                   |
|                |                | g |                                   |
|                |                | e |                                   |
|                |                | / |                                   |
|                |                | R |                                   |
|                |                | e |                                   |
|                |                | m |                                   |
|                |                | a |                                   |
|                |                | r |                                   |
|                |                | k |                                   |
|                |                | s |                                   |
+----------------+----------------+---+-----------------------------------+
| Regions 1,2,3  | Regions 1,2,3  |   |                                   |
+----------------+----------------+---+-----------------------------------+
| **134-142**    | **134-[136]    |   | Amateur and amateur-satellite     |
|                | {.underline}** |   | services moved here from 142-144  |
| MOBILE S5.553  |                |   | GHz band to avoid interference to |
|                | [AMATEU        |   | radio astronomy at higher         |
| MO             | R]{.underline} |   | frequencies.                      |
| BILE-SATELLITE |                |   |                                   |
|                | [AM            |   | Radio astronomy added as          |
| R              | ATEUR-SATELLIT |   | secondary service to reflect      |
| ADIONAVIGATION | E]{.underline} |   | coordination requirement with the |
|                |                |   | amateur-satellite service.        |
| RADIONAVIGA    | ~~MOBILE       |   |                                   |
| TION-SATELLITE | S5.553~~       |   |                                   |
|                |                |   |                                   |
| Radiolocation  | ~~MOBI         |   |                                   |
|                | LE-SATELLITE~~ |   |                                   |
| S5.149 S5.340  |                |   |                                   |
| S5.554 S5.555  | ~~RAD          |   |                                   |
|                | IONAVIGATION~~ |   |                                   |
|                |                |   |                                   |
|                | ~              |   |                                   |
|                | ~RADIONAVIGATI |   |                                   |
|                | ON-SATELLITE~~ |   |                                   |
|                |                |   |                                   |
|                | [Radio         |   |                                   |
|                | Astronom       |   |                                   |
|                | y]{.underline} |   |                                   |
|                |                |   |                                   |
|                | ~~R            |   |                                   |
|                | adiolocation~~ |   |                                   |
|                |                |   |                                   |
|                | ~~S5.149~~     |   |                                   |
|                | ~~S5.340~~     |   |                                   |
|                | ~~S5.554~~     |   |                                   |
|                | ~~S5.555~~     |   |                                   |
+----------------+----------------+---+-----------------------------------+
|                | **[136 -       |   | Services from 144 -149 GHz band   |
|                | 141]           |   | moved here.                       |
|                | {.underline}** |   |                                   |
|                |                |   | Radio astronomy allocation and    |
|                | ~~MOBILE       |   | new footnote S5.ZZZ, along with   |
|                | S5.553~~       |   | RES ZZZ satisfy requirement for   |
|                |                |   | radio astronomy spectral line and |
|                | ~~MOBI         |   | wide band continuum observations  |
|                | LE-SATELLITE~~ |   | from a few remote locations       |
|                |                |   | world-wide.                       |
|                | [RADIO         |   |                                   |
|                | ASTRONOMY      |   | Band added to those listed under  |
|                | S5.ZZ          |   | S5.149.                           |
|                | Z]{.underline} |   |                                   |
|                |                |   | Band no longer passive and        |
|                | [RADIOLOCATIO  |   | removed from S5.340               |
|                | N]{.underline} |   |                                   |
|                |                |   | S5.554 is no longer relevant to   |
|                | ~~RAD          |   | this band.                        |
|                | IONAVIGATION~~ |   |                                   |
|                |                |   | S5.555 modified to reflect        |
|                | ~              |   | primary status of the RAS in the  |
|                | ~RADIONAVIGATI |   | full 136-141 GHz band.            |
|                | ON-SATELLITE~~ |   |                                   |
|                |                |   |                                   |
|                | [Amateu        |   |                                   |
|                | r]{.underline} |   |                                   |
|                |                |   |                                   |
|                | [Am            |   |                                   |
|                | ateur-Satellit |   |                                   |
|                | e]{.underline} |   |                                   |
|                |                |   |                                   |
|                | ~~R            |   |                                   |
|                | adiolocation~~ |   |                                   |
|                |                |   |                                   |
|                | [MO            |   |                                   |
|                | D]{.underline} |   |                                   |
|                | S5.149         |   |                                   |
|                | ~~S5.340~~     |   |                                   |
|                | ~~S5.554~~     |   |                                   |
|                | ~~S5.555~~     |   |                                   |
+----------------+----------------+---+-----------------------------------+

+----------------+-----------------+---+-----------------------------------+
| **GHz**        |                 |   |                                   |
|                |                 |   |                                   |
| **126-200      |                 |   |                                   |
| (continued)**  |                 |   |                                   |
+----------------+-----------------+---+-----------------------------------+
| Current        | Proposed        | R |                                   |
| Allocations    | Allocations     | e |                                   |
|                |                 | a |                                   |
|                |                 | s |                                   |
|                |                 | o |                                   |
|                |                 | n |                                   |
|                |                 | f |                                   |
|                |                 | o |                                   |
|                |                 | r |                                   |
|                |                 | C |                                   |
|                |                 | h |                                   |
|                |                 | a |                                   |
|                |                 | n |                                   |
|                |                 | g |                                   |
|                |                 | e |                                   |
|                |                 | / |                                   |
|                |                 | R |                                   |
|                |                 | e |                                   |
|                |                 | m |                                   |
|                |                 | a |                                   |
|                |                 | r |                                   |
|                |                 | k |                                   |
|                |                 | s |                                   |
+----------------+-----------------+---+-----------------------------------+
| Regions 1,2,3  | Regions 1,2,3   |   |                                   |
+----------------+-----------------+---+-----------------------------------+
| **142 - 144**  | **[141 -        |   | Allocations transferred to this   |
|                | 148.5           |   | band from 126-134 GHz band.       |
| AMATEUR        | ]{.underline}** |   | Bandwidth reduced to 7.5 GHz to   |
|                |                 |   | accommodate EES (passive) and SR  |
| AMA            | ~~AMATEUR~~     |   | (passive) requirements in         |
| TEUR-SATELLITE |                 |   | 148.5-151.5 GHz band.             |
|                | ~~AMAT          |   |                                   |
|                | EUR-SATELLITE~~ |   | Radio astronomy allocation and    |
|                |                 |   | new footnote S5.ZZZ, along with   |
|                | [FIX            |   | RES ZZZ satisfy requirement for   |
|                | ED]{.underline} |   | radio astronomy spectral line and |
|                |                 |   | wide band continuum observations  |
|                | MOBILE          |   | from a few remote locations       |
|                | ~~S5.553~~      |   | world-wide.                       |
|                |                 |   |                                   |
|                | ~~MOB           |   | Band no longer passive; deleted   |
|                | ILE-SATELLITE~~ |   | from those listed under S5.340.   |
|                |                 |   |                                   |
|                | [RADIO          |   | Band added to those listed under  |
|                | ASTRONOMY       |   | S5.149                            |
|                | S5.Z            |   |                                   |
|                | ZZ]{.underline} |   | S5.555 no longer refers to any    |
|                |                 |   | portion of this band.             |
|                | RADIOLOCATION   |   |                                   |
|                |                 |   |                                   |
|                | ~~RA            |   |                                   |
|                | DIONAVIGATION~~ |   |                                   |
|                |                 |   |                                   |
|                | ~~RADIONAVIGAT  |   |                                   |
|                | ION-SATELLITE~~ |   |                                   |
|                |                 |   |                                   |
|                | ~~Amateur~~     |   |                                   |
|                |                 |   |                                   |
|                | ~~Amat          |   |                                   |
|                | eur-Satellite~~ |   |                                   |
|                |                 |   |                                   |
|                | ~~              |   |                                   |
|                | Radiolocation~~ |   |                                   |
|                |                 |   |                                   |
|                | [M              |   |                                   |
|                | OD]{.underline} |   |                                   |
|                | S5.149          |   |                                   |
|                | ~~S5.340~~      |   |                                   |
|                | ~~S5.555~~      |   |                                   |
+----------------+-----------------+---+-----------------------------------+
| **144 - 149**  |                 |   |                                   |
|                |                 |   |                                   |
| RADIOLOCATION  |                 |   |                                   |
|                |                 |   |                                   |
| Amateur        |                 |   |                                   |
|                |                 |   |                                   |
| Ama            |                 |   |                                   |
| teur-Satellite |                 |   |                                   |
|                |                 |   |                                   |
| S 5.149 S5.555 |                 |   |                                   |
+----------------+-----------------+---+-----------------------------------+
| **149-150**    |                 |   |                                   |
|                |                 |   |                                   |
| FIXED          |                 |   |                                   |
|                |                 |   |                                   |
| F              |                 |   |                                   |
| IXED-SATELLITE |                 |   |                                   |
| (s             |                 |   |                                   |
| pace-to-Earth) |                 |   |                                   |
|                |                 |   |                                   |
| MOBILE         |                 |   |                                   |
+----------------+-----------------+---+-----------------------------------+

+-----------------+-----------------+-----------------------------------+
| **GHz**         |                 |                                   |
|                 |                 |                                   |
| **126-200       |                 |                                   |
| (continued)**   |                 |                                   |
+-----------------+-----------------+-----------------------------------+
| Current         | Proposed        | Reason for Change / Remarks       |
| Allocations     | Allocations     |                                   |
+-----------------+-----------------+-----------------------------------+
| Regions 1,2,3   | Regions 1,2,3   |                                   |
+-----------------+-----------------+-----------------------------------+
| **150-151**     | **[148.5 -      | Current passive allocation of     |
|                 | 151.5           | 150-151 GHz has insufficient      |
| EARTH           | ]{.underline}** | bandwidth and is not adequately   |
| EXPLOR          |                 | protected from interference.      |
| ATION-SATELLITE | [EARTH          |                                   |
| (passive)       | EXPLOR          | Band purely passive, added to     |
|                 | ATION-SATELLITE | those listed under S5.340, no     |
| FIXED           | (passiv         | longer listed under S5.149.       |
|                 | e)]{.underline} |                                   |
| FIXED-SATELLITE |                 | S5.555 no longer refers to any    |
| (               | ~~FIXED~~       | portion of this band.             |
| space-to-Earth) |                 |                                   |
|                 | ~~              |                                   |
| MOBILE          | FIXED-SATELLITE |                                   |
|                 | (sp             |                                   |
| SPACE RESEARCH  | ace-to-Earth)~~ |                                   |
| (passive)       |                 |                                   |
|                 | ~~MOBILE~~      |                                   |
| S5.149 S5.385   |                 |                                   |
|                 | [RADIO          |                                   |
|                 | ASTRONO         |                                   |
|                 | MY]{.underline} |                                   |
|                 |                 |                                   |
|                 | ~~              |                                   |
|                 | RADIOLOCATION~~ |                                   |
|                 |                 |                                   |
|                 | [SPACE RESEARCH |                                   |
|                 | (passiv         |                                   |
|                 | e)]{.underline} |                                   |
|                 |                 |                                   |
|                 | ~~Amateur~~     |                                   |
|                 |                 |                                   |
|                 | ~~Amat          |                                   |
|                 | eur-Satellite~~ |                                   |
|                 |                 |                                   |
|                 | ~~S 5.149 S     |                                   |
|                 | 5.385 S5.555~~  |                                   |
|                 | [MOD            |                                   |
|                 | S5.3            |                                   |
|                 | 40]{.underline} |                                   |
+-----------------+-----------------+-----------------------------------+

+----------------+--------------------+-------------------------------+---+
| **GHz**        |                    |                               |   |
|                |                    |                               |   |
| **126-200      |                    |                               |   |
| (continued)**  |                    |                               |   |
+----------------+--------------------+-------------------------------+---+
| Current        | Proposed           | Reason for Change / Remarks   |   |
| Allocations    | Allocations        |                               |   |
+----------------+--------------------+-------------------------------+---+
| Regions 1,2,3  | Regions 1,2,3      |                               |   |
+----------------+--------------------+-------------------------------+---+
| **151-156**    | **151.5 -          | FSS downlink allocation       |   |
|                | [15                | incompatible with primary     |   |
| FIXED          | 5.5]{.underline}** | radio astronomy requirement.  |   |
|                |                    | Radio astronomy allocation    |   |
| F              | FIXED              | and new footnote S5.ZZZ,      |   |
| IXED-SATELLITE |                    | along with RES ZZZ satisfy    |   |
| (s             | ~~FIXED-SATELLITE  | requirement for radio         |   |
| pace-to-Earth) | (space-to-Earth)~~ | astronomy spectral line and   |   |
|                |                    | wide band continuum           |   |
| MOBILE         | MOBILE             | observations from a few       |   |
|                |                    | remote locations world-wide.  |   |
|                | [RADIO ASTRONOMY   |                               |   |
|                | S                  | Band added to those listed    |   |
|                | 5.ZZZ]{.underline} | under S5.149                  |   |
|                |                    |                               |   |
|                | [RADIOLOC          | Radiolocation allocation      |   |
|                | ATION]{.underline} | compensates for removal from  |   |
|                |                    | 126-134 GHz band.             |   |
|                | [MOD               |                               |   |
|                | S                  |                               |   |
|                | 5.149]{.underline} |                               |   |
+----------------+--------------------+-------------------------------+---+
| **156-158**    | **155.5-158.5**    | FSS downlink allocation       |   |
|                |                    | incompatible with primary     |   |
| EARTH          | EARTH              | radio astronomy requirement.  |   |
| EXPLORA        | EXP                |                               |   |
| TION-SATELLITE | LORATION-SATELLITE | Radio astronomy allocation    |   |
| (passive)      | (passive)          | and new footnote S5.ZZZ,      |   |
|                | [S                 | along with RES ZZZ satisfy    |   |
| FIXED          | 5.AAA]{.underline} | requirement for radio         |   |
|                |                    | astronomy spectral line and   |   |
| F              | FIXED              | wide band continuum           |   |
| IXED-SATELLITE | [S                 | observations from a few       |   |
| (s             | 5.BBB]{.underline} | remote locations world-wide.  |   |
| pace-to-Earth) |                    |                               |   |
|                | ~~FIXED-SATELLITE  | Band added to those listed    |   |
| MOBILE         | (space-to-Earth)~~ | under S5.149                  |   |
|                |                    |                               |   |
|                | MOBILE             | EES operations in the band    |   |
|                | [S                 | 155.5-158.5 GHz need to be    |   |
|                | 5.BBB]{.underline} | protected until 1/1/2018.     |   |
|                |                    | After this date the fixed and |   |
|                | [RADIO ASTRONOMY   | mobile services need to       |   |
|                | S                  | co-ordinate with radio        |   |
|                | 5.ZZZ]{.underline} | astronomy sites only.         |   |
|                |                    |                               |   |
|                | [SPACE RESEARCH    | Space Research (passive)      |   |
|                | (passive)          | allocation limited to         |   |
|                | S                  | space-based radio astronomy   |   |
|                | 5.CCC]{.underline} | in this band                  |   |
|                |                    |                               |   |
|                | [MOD               |                               |   |
|                | S5                 |                               |   |
|                | 5.149]{.underline} |                               |   |
+----------------+--------------------+-------------------------------+---+

+----------------+---+-----------------+-----------------------------------+
| **GHz**        |   |                 |                                   |
|                |   |                 |                                   |
| **126-200      |   |                 |                                   |
| (continued)**  |   |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
| Current        |   | Proposed        | Reason for Change / Remarks       |
| Allocations    |   | Allocations     |                                   |
+----------------+---+-----------------+-----------------------------------+
| Regions 1,2,3  |   | Regions 1,2,3   |                                   |
+----------------+---+-----------------+-----------------------------------+
| **158 -164**   |   | **[158.5        | Mobile-satellite allocation added |
|                |   | ]{.underline} - | to compensate for ..              |
| FIXED          |   | 164**           |                                   |
|                |   |                 |                                   |
| F              |   | FIXED           |                                   |
| IXED-SATELLITE |   |                 |                                   |
| (s             |   | FIXED-SATELLITE |                                   |
| pace-to-Earth) |   | (               |                                   |
|                |   | space-to-Earth) |                                   |
| MOBILE         |   |                 |                                   |
|                |   | MOBILE          |                                   |
|                |   |                 |                                   |
|                |   | [M              |                                   |
|                |   | OBILE-SATELLITE |                                   |
|                |   | (space-to       |                                   |
|                |   | Eart            |                                   |
|                |   | h)]{.underline} |                                   |
+----------------+---+-----------------+-----------------------------------+
| **164 - 168**  | * |                 | **[NOC]{.underline}**             |
|                | * |                 |                                   |
| EARTH          | 1 |                 | Passive sensors require only a 3  |
| EXPLORA        | 6 |                 | GHz band from 164-167 GHz. This   |
| TION-SATELLITE | 4 |                 | band, along with the band         |
| (passive)      |   |                 | 148.5-151.5 GHz will become the   |
|                | - |                 | harmonised reference window for   |
| RADIO          | ~ |                 | passive sensor observations of    |
| ASTRONOMY      | ~ |                 | the 183.31 GHz water vapor line.  |
|                | 1 |                 | The band is also used for         |
| SPACE RESEARCH | 6 |                 | microwave limb sounding of the    |
| (passive)      | 8 |                 | 164.38 GHz Cl O line.             |
|                | ~ |                 |                                   |
|                | ~ |                 | Band added to those listed under  |
|                | [ |                 | S5.340.                           |
|                | 1 |                 |                                   |
|                | 6 |                 |                                   |
|                | 7 |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                | * |                 |                                   |
|                | * |                 |                                   |
|                |   |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | T |                 |                                   |
|                | H |                 |                                   |
|                | E |                 |                                   |
|                | X |                 |                                   |
|                | P |                 |                                   |
|                | L |                 |                                   |
|                | O |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                |   |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | D |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | A |                 |                                   |
|                | S |                 |                                   |
|                | T |                 |                                   |
|                | R |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | O |                 |                                   |
|                | M |                 |                                   |
|                | Y |                 |                                   |
|                |   |                 |                                   |
|                | S |                 |                                   |
|                | P |                 |                                   |
|                | A |                 |                                   |
|                | C |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | E |                 |                                   |
|                | S |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | C |                 |                                   |
|                | H |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 4 |                 |                                   |
|                | 0 |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
| **168 - 170**  | * |                 | Passive services do not need this |
|                | * |                 | band.                             |
| FIXED          | 1 |                 |                                   |
|                | 6 |                 | Fixed, mobile, inter-satellite    |
| MOBILE         | [ |                 | and fixed-satellite downlinks     |
|                | 7 |                 | added.                            |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                |   |                 |                                   |
|                | - |                 |                                   |
|                | 1 |                 |                                   |
|                | 7 |                 |                                   |
|                | 4 |                 |                                   |
|                | * |                 |                                   |
|                | * |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | T |                 |                                   |
|                | H |                 |                                   |
|                | E |                 |                                   |
|                | X |                 |                                   |
|                | P |                 |                                   |
|                | L |                 |                                   |
|                | O |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
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|                | e |                 |                                   |
|                | ) |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | F |                 |                                   |
|                | I |                 |                                   |
|                | X |                 |                                   |
|                | E |                 |                                   |
|                | D |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
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|                | d |                 |                                   |
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|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
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|                | } |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | F |                 |                                   |
|                | I |                 |                                   |
|                | X |                 |                                   |
|                | E |                 |                                   |
|                | D |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
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|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ( |                 |                                   |
|                | S |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | c |                 |                                   |
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|                | - |                 |                                   |
|                | t |                 |                                   |
|                | o |                 |                                   |
|                | - |                 |                                   |
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|                | a |                 |                                   |
|                | r |                 |                                   |
|                | t |                 |                                   |
|                | h |                 |                                   |
|                | ) |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
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|                |   |                 |                                   |
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|                | N |                 |                                   |
|                | T |                 |                                   |
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|                | ] |                 |                                   |
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|                | n |                 |                                   |
|                | d |                 |                                   |
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|                | } |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | B |                 |                                   |
|                | I |                 |                                   |
|                | L |                 |                                   |
|                | E |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                | [ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 5 |                 |                                   |
|                | 5 |                 |                                   |
|                | 8 |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | D |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | A |                 |                                   |
|                | S |                 |                                   |
|                | T |                 |                                   |
|                | R |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | O |                 |                                   |
|                | M |                 |                                   |
|                | Y |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | S |                 |                                   |
|                | P |                 |                                   |
|                | A |                 |                                   |
|                | C |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | E |                 |                                   |
|                | S |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | C |                 |                                   |
|                | H |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
| **170-174.5**  |   |                 |                                   |
|                |   |                 |                                   |
| FIXED          |   |                 |                                   |
|                |   |                 |                                   |
| I              |   |                 |                                   |
| NTER-SATELLITE |   |                 |                                   |
|                |   |                 |                                   |
| MOBILE S5.558  |   |                 |                                   |
|                |   |                 |                                   |
| S5.149 S5.385  |   |                 |                                   |
+----------------+---+-----------------+-----------------------------------+

+----------------+---+-----------------+-----------------------------------+
| **GHz**        |   |                 |                                   |
|                |   |                 |                                   |
| **126-200      |   |                 |                                   |
| (continued)**  |   |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
| Current        |   | Proposed        | Reason for Change / Remarks       |
| Allocations    |   | Allocations     |                                   |
+----------------+---+-----------------+-----------------------------------+
| Regions 1,2,3  |   | Regions 1,2,3   |                                   |
+----------------+---+-----------------+-----------------------------------+
| *              | * |                 | Band not needed for passive uses. |
| *174.5-176.5** | * |                 |                                   |
|                | [ |                 | FSS (space-to-Earth) added, to    |
| EARTH          | 1 |                 | compensate for loss of 151-158    |
| EXPLORA        | 7 |                 | GHz band in middle of atmospheric |
| TION-SATELLITE | 4 |                 | window.                           |
| (passive)      | ] |                 |                                   |
|                | { |                 | Band deleted from those listed    |
| FIXED          | . |                 | under S5.149 and S5.385.          |
|                | u |                 |                                   |
| I              | n |                 |                                   |
| NTER-SATELLITE | d |                 |                                   |
|                | e |                 |                                   |
| MOBILE S5.558  | r |                 |                                   |
|                | l |                 |                                   |
| SPACE RESEARCH | i |                 |                                   |
| (passive)      | n |                 |                                   |
|                | e |                 |                                   |
| S5.149 S5.385  | } |                 |                                   |
|                |   |                 |                                   |
|                | - |                 |                                   |
|                | [ |                 |                                   |
|                | 1 |                 |                                   |
|                | 7 |                 |                                   |
|                | 4 |                 |                                   |
|                | . |                 |                                   |
|                | 8 |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                | * |                 |                                   |
|                | * |                 |                                   |
|                |   |                 |                                   |
|                | F |                 |                                   |
|                | I |                 |                                   |
|                | X |                 |                                   |
|                | E |                 |                                   |
|                | D |                 |                                   |
|                |   |                 |                                   |
|                | I |                 |                                   |
|                | N |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                |   |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | B |                 |                                   |
|                | I |                 |                                   |
|                | L |                 |                                   |
|                | E |                 |                                   |
|                | [ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 5 |                 |                                   |
|                | 5 |                 |                                   |
|                | 8 |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 1 |                 |                                   |
|                | 4 |                 |                                   |
|                | 9 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 8 |                 |                                   |
|                | 5 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
|                | * |                 | The band 174.8-191.8 GHz is of    |
|                | * |                 | crucial importance for passive    |
|                | 1 |                 | sensing of the water vapour       |
|                | 7 |                 | absorption line whose peak is at  |
|                | 4 |                 | 183.31 GHz.. Sharing with fixed   |
|                | . |                 | and mobile services is not        |
|                | 8 |                 | possible, so they need to be      |
|                | - |                 | reallocated. The ISS service      |
|                | 1 |                 | needs to be limited to links      |
|                | 7 |                 | between GSO satellites and to a   |
|                | 6 |                 | pfd limit as specified in sharing |
|                | . |                 | studies.                          |
|                | 5 |                 |                                   |
|                | * |                 | Band deleted from those listed    |
|                | * |                 | under S5.149. The band            |
|                |   |                 | 174.8-191.8 GHz is of crucial     |
|                | E |                 | importance for passive sensing of |
|                | A |                 | the water vapour absorption line  |
|                | R |                 | whose peak is at 183.31 GHz..     |
|                | T |                 | Sharing with fixed and mobile     |
|                | H |                 | services is not possible, so they |
|                | E |                 | need to be reallocated. The ISS   |
|                | X |                 | service needs to be limited to    |
|                | P |                 | links between GSO satellites and  |
|                | L |                 | to a pfd limit as specified in    |
|                | O |                 | sharing studies.                  |
|                | R |                 |                                   |
|                | A |                 | Band deleted from those listed    |
|                | T |                 | under S5.149, S5.385 (secondary   |
|                | I |                 | radio astronomy allocation)       |
|                | O |                 | deleted .                         |
|                | N |                 |                                   |
|                | - |                 | Footnotes appropriately modified. |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | F |                 |                                   |
|                | I |                 |                                   |
|                | X |                 |                                   |
|                | E |                 |                                   |
|                | D |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | I |                 |                                   |
|                | N |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | [ |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | Y |                 |                                   |
|                | Y |                 |                                   |
|                | Y |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | B |                 |                                   |
|                | I |                 |                                   |
|                | L |                 |                                   |
|                | E |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 5 |                 |                                   |
|                | 5 |                 |                                   |
|                | 8 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | S |                 |                                   |
|                | P |                 |                                   |
|                | A |                 |                                   |
|                | C |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | E |                 |                                   |
|                | S |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | C |                 |                                   |
|                | H |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 1 |                 |                                   |
|                | 4 |                 |                                   |
|                | 9 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 8 |                 |                                   |
|                | 5 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
+----------------+---+-----------------+-----------------------------------+

+-----------------+-----------------+-----------------------------------+
| **GHz**         |                 |                                   |
|                 |                 |                                   |
| **126-200       |                 |                                   |
| (continued)**   |                 |                                   |
+-----------------+-----------------+-----------------------------------+
| Current         | Proposed        | Reason for Change / Remarks       |
| Allocations     | Allocations     |                                   |
+-----------------+-----------------+-----------------------------------+
| Regions 1,2,3   | Regions 1,2,3   |                                   |
+-----------------+-----------------+-----------------------------------+
| **176.5-182**   | **176.5-182**   | This band is of crucial           |
|                 |                 | importance for passive sensing of |
| FIXED           | [EARTH          | the water vapor absorption line   |
|                 | EXPLOR          | whose peak is at 183.31 GHz.      |
| INTER-SATELLITE | ATION-SATELLITE | sharing with fixed and mobile     |
|                 | (passiv         | services is not possible, so they |
| MOBILE S5.558   | e)]{.underline} | need to be reallocated. The ISS   |
|                 |                 | service needs to be limited to    |
| S5.149 S5.385   | ~~FIXED~~       | links between GSO satellites and  |
|                 |                 | to a pfd limit as specified in    |
|                 | INTER-SATELLITE | sharing studies.                  |
|                 | [S5.Y           |                                   |
|                 | YY]{.underline} | The band 174.8-191.8 GHz is       |
|                 |                 | required for sensing of the water |
|                 | ~~MOBILE        | vapour absorption line whose peak |
|                 | S5.558~~        | is at 183.31 GHz.                 |
|                 |                 |                                   |
|                 | [SPACE RESEARCH |                                   |
|                 | (passiv         |                                   |
|                 | e)]{.underline} |                                   |
|                 |                 |                                   |
|                 | [M              |                                   |
|                 | OD]{.underline} |                                   |
|                 | S5.149 S5.385   |                                   |
+-----------------+-----------------+-----------------------------------+
| **182-185**     | **182-185**     | No terrestrial radio astronomy    |
|                 |                 | use of the band is possible due   |
| EARTH           | EARTH           | to high atmospheric absorption.   |
| EXPLOR          | EXPLOR          | Radio astronomy observations of   |
| ATION-SATELLITE | ATION-SATELLITE | the water vapor line from space   |
| (passive)       | (passive)       | are conducted in this band under  |
|                 |                 | the Space Research (passive)      |
| RADIO ASTRONOMY | ~~RADIO         | allocation.                       |
|                 | ASTRONOMY~~     |                                   |
| SPACE RESEARCH  |                 | The band 174.8-191.8 GHz is       |
| (passive)       | SPACE RESEARCH  | required for sensing of the water |
|                 | (passive)       | vapour absorption line whose peak |
| S5.340 S5.563   |                 | is at 183.31 GHz.                 |
|                 | [M              |                                   |
|                 | OD]{.underline} |                                   |
|                 | S5.340 S5.563   |                                   |
|                 | [M              |                                   |
|                 | OD]{.underline} |                                   |
|                 | S5.149          |                                   |
+-----------------+-----------------+-----------------------------------+

+----------------+---+-----------------+-----------------------------------+
| **GHz**        |   |                 |                                   |
|                |   |                 |                                   |
| **126-200      |   |                 |                                   |
| (continued)**  |   |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
| Current        |   | Proposed        | Reason for Change / Remarks       |
| Allocations    |   | Allocations     |                                   |
+----------------+---+-----------------+-----------------------------------+
| Regions 1,2,3  |   | Regions 1,2,3   |                                   |
+----------------+---+-----------------+-----------------------------------+
| **185-190**    | * |                 | This band is of crucial           |
|                | * |                 | importance for passive sensing of |
| FIXED          | 1 |                 | the water vapor absorption line   |
|                | 8 |                 | whose peak is at 183.31 GHz.      |
| I              | 5 |                 | Sharing with fixed and mobile     |
| NTER-SATELLITE | - |                 | services is not possible, so they |
|                | 1 |                 | need to be reallocated. The ISS   |
| MOBILE S5.558  | 9 |                 | service needs to be limited to    |
|                | 0 |                 | links between GSO satellites and  |
| S5.149 S5.385  | * |                 | to a pfd limit as specified in    |
|                | * |                 | sharing studies.                  |
|                |   |                 |                                   |
|                | [ |                 | Band deleted from those listed in |
|                | E |                 | S5.149.                           |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | T |                 |                                   |
|                | H |                 |                                   |
|                | E |                 |                                   |
|                | X |                 |                                   |
|                | P |                 |                                   |
|                | L |                 |                                   |
|                | O |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | F |                 |                                   |
|                | I |                 |                                   |
|                | X |                 |                                   |
|                | E |                 |                                   |
|                | D |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | I |                 |                                   |
|                | N |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | [ |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | Y |                 |                                   |
|                | Y |                 |                                   |
|                | Y |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | B |                 |                                   |
|                | I |                 |                                   |
|                | L |                 |                                   |
|                | E |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 5 |                 |                                   |
|                | 5 |                 |                                   |
|                | 8 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | S |                 |                                   |
|                | P |                 |                                   |
|                | A |                 |                                   |
|                | C |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | E |                 |                                   |
|                | S |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | C |                 |                                   |
|                | H |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 1 |                 |                                   |
|                | 4 |                 |                                   |
|                | 9 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 8 |                 |                                   |
|                | 5 |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
| **190 - 200**  | * |                 | This band is of crucial           |
|                | * |                 | importance for passive sensing of |
| MOBILE S5.553  | 1 |                 | the water vapor absorption line   |
|                | 9 |                 | whose peak is at 183.31 GHz.      |
| MO             | 0 |                 | Sharing with the mobile,          |
| BILE-SATELLITE |   |                 | mobile-satellite, RN and RNS      |
|                | - |                 | services is not possible, and     |
| R              | 1 |                 | they need to be reallocated.      |
| ADIONAVIGATION | 9 |                 |                                   |
|                | 1 |                 | S5.554 deleted from this band, to |
| RADIONAVIGA    | . |                 | reflect deletion of active        |
| TION-SATELLITE | 8 |                 | services, and modified to reflect |
|                | * |                 | change.                           |
| S5.341 S5.554  | * |                 |                                   |
|                |   |                 | S5.341 does not apply to this     |
|                | [ |                 | band.                             |
|                | E |                 |                                   |
|                | A |                 | S5.340 modified to include this   |
|                | R |                 | band.                             |
|                | T |                 |                                   |
|                | H |                 |                                   |
|                | E |                 |                                   |
|                | X |                 |                                   |
|                | P |                 |                                   |
|                | L |                 |                                   |
|                | O |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
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|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 5 |                 |                                   |
|                | 5 |                 |                                   |
|                | 3 |                 |                                   |
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|                | A |                 |                                   |
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|                | - |                 |                                   |
|                | t |                 |                                   |
|                | o |                 |                                   |
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|                | D |                 |                                   |
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|                | A |                 |                                   |
|                | V |                 |                                   |
|                | I |                 |                                   |
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|                | A |                 |                                   |
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|                | D |                 |                                   |
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|                | V |                 |                                   |
|                | I |                 |                                   |
|                | G |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
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|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | S |                 |                                   |
|                | P |                 |                                   |
|                | A |                 |                                   |
|                | C |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | E |                 |                                   |
|                | S |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | C |                 |                                   |
|                | H |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
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|                | } |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 4 |                 |                                   |
|                | 1 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 5 |                 |                                   |
|                | 5 |                 |                                   |
|                | 4 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | [ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 4 |                 |                                   |
|                | 0 |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
|                | * |                 | S5.553 and S5.554 modified, to    |
|                | * |                 | reflect deletion of terrestrial   |
|                | 1 |                 | services from 190.0 -191.8 GHz    |
|                | 9 |                 | band.                             |
|                | 1 |                 |                                   |
|                | . |                 | S5.553 modified to include        |
|                | 8 |                 | stations in the fixed service.    |
|                | - |                 |                                   |
|                | 2 |                 | ISS allocation added.             |
|                | 0 |                 |                                   |
|                | 0 |                 |                                   |
|                | * |                 |                                   |
|                | * |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | F |                 |                                   |
|                | I |                 |                                   |
|                | X |                 |                                   |
|                | E |                 |                                   |
|                | D |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 5 |                 |                                   |
|                | 5 |                 |                                   |
|                | 3 |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
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|                | n |                 |                                   |
|                | d |                 |                                   |
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|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | I |                 |                                   |
|                | N |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                |   |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | B |                 |                                   |
|                | I |                 |                                   |
|                | L |                 |                                   |
|                | E |                 |                                   |
|                | [ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 5 |                 |                                   |
|                | 5 |                 |                                   |
|                | 3 |                 |                                   |
|                |   |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | B |                 |                                   |
|                | I |                 |                                   |
|                | L |                 |                                   |
|                | E |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                |   |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | D |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | A |                 |                                   |
|                | V |                 |                                   |
|                | I |                 |                                   |
|                | G |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                |   |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | D |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | A |                 |                                   |
|                | V |                 |                                   |
|                | I |                 |                                   |
|                | G |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                |   |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 4 |                 |                                   |
|                | 1 |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 5 |                 |                                   |
|                | 5 |                 |                                   |
|                | 4 |                 |                                   |
+----------------+---+-----------------+-----------------------------------+

+----------------+----------------+----------------------------------+
| **GHz**        |                |                                  |
|                |                |                                  |
| **200-275**    |                |                                  |
+----------------+----------------+----------------------------------+
| Current        | Proposed       | Reason for Change / Remarks      |
| Allocations    | Allocations    |                                  |
+----------------+----------------+----------------------------------+
| Regions 1,2,3  | Regions 1,2,3  |                                  |
+----------------+----------------+----------------------------------+
| **200-202**    | **200-202**    | Band needed by EESS for          |
|                |                | atmospheric chemistry (limb      |
| EARTH          | EARTH          | sounding ) and atmospheric       |
| EXPLORA        | EXPLORA        | remote sensing of nitrous oxide  |
| TION-SATELLITE | TION-SATELLITE | at 201 GHz. Fixed and mobile     |
| (passive)      | (passive)      | services needs to be relocated   |
|                |                | from this band.                  |
| FIXED          | ~~FIXED~~      |                                  |
|                |                | Radio astronomy allocation \[and |
| MOBILE         | ~~MOBILE~~     | new footnote S5.ZZZ, along with  |
|                |                | RES ZZZ,\] satisfy requirement   |
| SPACE RESEARCH | [RADIO         | for radio astronomy spectral     |
| (passive)      | ASTRONOM       | line and wide band continuum     |
|                | Y]{.underline} | observations from a few remote   |
| S5.341         |                | locations world-wide.\[Band      |
|                | SPACE RESEARCH | added to those listed under      |
|                | (passive)      | S5.340\]                         |
|                |                |                                  |
|                | S5.341 [MOD    |                                  |
|                | S5.34          |                                  |
|                | 0]{.underline} |                                  |
+----------------+----------------+----------------------------------+

+----------------+----------------+-----------------------------------+
| **GHz**        |                |                                   |
|                |                |                                   |
| **200-275      |                |                                   |
| (continued)**  |                |                                   |
+----------------+----------------+-----------------------------------+
| Current        | Proposed       | Reason for Change / Remarks       |
| Allocations    | Allocations    |                                   |
+----------------+----------------+-----------------------------------+
| Regions 1,2,3  | Regions 1,2,3  |                                   |
+----------------+----------------+-----------------------------------+
| **202-217**    | **202 --       | Band needed by EES service for    |
|                | 2~~17~~**      | atmospheric chemistry (limb       |
| FIXED          | **[209]        | sounding ) and atmospheric remote |
|                | {.underline}** | sensing of water vapor at 203.4   |
| F              |                | GHz and ozone at 208.5 GHz.. FSS( |
| IXED-SATELLITE | [EARTH         | Earth-to-space) service relocated |
| (E             | EXPLORA        | from this band to 217-226 GHz     |
| arth-to-space) | TION-SATELLITE | band. Fixed and mobile services   |
|                | (passive       | may need to be relocated from     |
| MOBILE         | )]{.underline} | this band after results of        |
|                |                | sharing studies with EESS are     |
| S5.341         | ~~FIXED~~      | known.                            |
|                |                |                                   |
|                | ~~F            | Radio astronomy allocation added. |
|                | IXED-SATELLITE |                                   |
|                | (Ear           | Band added to those listed under  |
|                | th-to-space)~~ | S5.340                            |
|                |                |                                   |
|                | ~~MOBILE~~     |                                   |
|                |                |                                   |
|                | [RADIO         |                                   |
|                | ASTRONOM       |                                   |
|                | Y]{.underline} |                                   |
|                |                |                                   |
|                | [SPACE         |                                   |
|                | RESEARCH       |                                   |
|                | (passive       |                                   |
|                | )]{.underline} |                                   |
|                |                |                                   |
|                | S5.341 [MOD    |                                   |
|                | S5.34          |                                   |
|                | 0]{.underline} |                                   |
+----------------+----------------+-----------------------------------+
|                | **[20          | Radio astronomy allocation and    |
|                | 9]{.underline} | new footnote S5.ZZZ, along with   |
|                | -- 217**       | RES ZZZ satisfy requirement for   |
|                |                | radio astronomy spectral line and |
|                | FIXED          | wide band continuum observations  |
|                |                | from a few remote locations       |
|                | F              | world-wide.                       |
|                | IXED-SATELLITE |                                   |
|                | (E             | Footnote S5.149 added             |
|                | arth-to-space) |                                   |
|                |                | Band added to those listed under  |
|                | MOBILE         | S5.149                            |
|                |                |                                   |
|                | [RADIO         |                                   |
|                | ASTRONOMY      |                                   |
|                | S5.ZZ          |                                   |
|                | Z]{.underline} |                                   |
|                |                |                                   |
|                | S5.341 [MOD    |                                   |
|                | S5.14          |                                   |
|                | 9]{.underline} |                                   |
+----------------+----------------+-----------------------------------+

+----------------+---+-----------------+-----------------------------------+
| **GHz**        |   |                 |                                   |
|                |   |                 |                                   |
| **200-275      |   |                 |                                   |
| (continued)**  |   |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
| Current        |   | Proposed        | Reason for Change / Remarks       |
| Allocations    |   | Allocations     |                                   |
+----------------+---+-----------------+-----------------------------------+
| Regions 1,2,3  |   | Regions 1,2,3   |                                   |
+----------------+---+-----------------+-----------------------------------+
| **217-231**    | * |                 | Passive sensor allocation can be  |
|                | * |                 | deleted from this band.           |
| EARTH          | 2 |                 |                                   |
| EXPLORA        | 1 |                 | Band no longer passive, added to  |
| TION-SATELLITE | 7 |                 | those listed under S5.149,        |
| (passive)      | - |                 | removed from list of S5.340       |
|                | - |                 |                                   |
| RADIO          |   |                 | Band no longer passive, S5.340    |
| ASTRONOMY      | ~ |                 | deleted. MOD S5.149 added.        |
|                | ~ |                 |                                   |
| SPACE RESEARCH | 2 |                 |                                   |
| (passive)      | 3 |                 |                                   |
|                | 1 |                 |                                   |
| S5.340 S5.541  | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | * |                 |                                   |
|                | * |                 |                                   |
|                | * |                 |                                   |
|                | * |                 |                                   |
|                | [ |                 |                                   |
|                | 2 |                 |                                   |
|                | 2 |                 |                                   |
|                | 6 |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                | * |                 |                                   |
|                | * |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | T |                 |                                   |
|                | H |                 |                                   |
|                | E |                 |                                   |
|                | X |                 |                                   |
|                | P |                 |                                   |
|                | L |                 |                                   |
|                | O |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | F |                 |                                   |
|                | I |                 |                                   |
|                | X |                 |                                   |
|                | E |                 |                                   |
|                | D |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | F |                 |                                   |
|                | I |                 |                                   |
|                | X |                 |                                   |
|                | E |                 |                                   |
|                | D |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ( |                 |                                   |
|                | E |                 |                                   |
|                | a |                 |                                   |
|                | r |                 |                                   |
|                | t |                 |                                   |
|                | h |                 |                                   |
|                | - |                 |                                   |
|                | t |                 |                                   |
|                | o |                 |                                   |
|                | - |                 |                                   |
|                | s |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | c |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | B |                 |                                   |
|                | I |                 |                                   |
|                | L |                 |                                   |
|                | E |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                |   |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | D |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | A |                 |                                   |
|                | S |                 |                                   |
|                | T |                 |                                   |
|                | R |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | O |                 |                                   |
|                | M |                 |                                   |
|                | Y |                 |                                   |
|                |   |                 |                                   |
|                | S |                 |                                   |
|                | P |                 |                                   |
|                | A |                 |                                   |
|                | C |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | E |                 |                                   |
|                | S |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | C |                 |                                   |
|                | H |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                |   |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 4 |                 |                                   |
|                | 1 |                 |                                   |
|                | [ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 1 |                 |                                   |
|                | 4 |                 |                                   |
|                | 9 |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 4 |                 |                                   |
|                | 0 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
|                | * |                 | Passive sensors do not require    |
|                | * |                 | exclusive use of the 217-231 GHz  |
|                | [ |                 | band; only the 226-231.5 GHz      |
|                | 2 |                 | portion is required for limb      |
|                | 2 |                 | sounding of atmospheric           |
|                | 6 |                 | constituents. In addition, the    |
|                | ] |                 | band provides a 4 GHz reference   |
|                | { |                 | window for higher frequency water |
|                | . |                 | vapor measurements.               |
|                | u |                 |                                   |
|                | n |                 | This band is of vital importance  |
|                | d |                 | to the radio astronomy service    |
|                | e |                 | for observations of the 230.5 GHz |
|                | r |                 | CO line.                          |
|                | l |                 |                                   |
|                | i |                 | S5.340 modified to take into      |
|                | n |                 | account that 217-226 GHz band is  |
|                | e |                 | no longer passive.                |
|                | } |                 |                                   |
|                |   |                 | The FS, FSS (s-E), and MS         |
|                | - |                 | services have been deleted from   |
|                | ~ |                 | the 231-231.5 Ghz portion of the  |
|                | ~ |                 | band.                             |
|                | 2 |                 |                                   |
|                | 3 |                 |                                   |
|                | 1 |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | [ |                 |                                   |
|                | 2 |                 |                                   |
|                | 3 |                 |                                   |
|                | 1 |                 |                                   |
|                | . |                 |                                   |
|                | 5 |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                | * |                 |                                   |
|                | * |                 |                                   |
|                |   |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | T |                 |                                   |
|                | H |                 |                                   |
|                | E |                 |                                   |
|                | X |                 |                                   |
|                | P |                 |                                   |
|                | L |                 |                                   |
|                | O |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | F |                 |                                   |
|                | I |                 |                                   |
|                | X |                 |                                   |
|                | E |                 |                                   |
|                | D |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | F |                 |                                   |
|                | I |                 |                                   |
|                | X |                 |                                   |
|                | E |                 |                                   |
|                | D |                 |                                   |
|                | - |                 |                                   |
|                | S |                 |                                   |
|                | A |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | L |                 |                                   |
|                | L |                 |                                   |
|                | I |                 |                                   |
|                | T |                 |                                   |
|                | E |                 |                                   |
|                | ( |                 |                                   |
|                | s |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | c |                 |                                   |
|                | e |                 |                                   |
|                | - |                 |                                   |
|                | t |                 |                                   |
|                | o |                 |                                   |
|                | - |                 |                                   |
|                | E |                 |                                   |
|                | a |                 |                                   |
|                | r |                 |                                   |
|                | t |                 |                                   |
|                | h |                 |                                   |
|                | ) |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | B |                 |                                   |
|                | I |                 |                                   |
|                | L |                 |                                   |
|                | E |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | R |                 |                                   |
|                | A |                 |                                   |
|                | D |                 |                                   |
|                | I |                 |                                   |
|                | O |                 |                                   |
|                | A |                 |                                   |
|                | S |                 |                                   |
|                | T |                 |                                   |
|                | R |                 |                                   |
|                | O |                 |                                   |
|                | N |                 |                                   |
|                | O |                 |                                   |
|                | M |                 |                                   |
|                | Y |                 |                                   |
|                |   |                 |                                   |
|                | S |                 |                                   |
|                | P |                 |                                   |
|                | A |                 |                                   |
|                | C |                 |                                   |
|                | E |                 |                                   |
|                | R |                 |                                   |
|                | E |                 |                                   |
|                | S |                 |                                   |
|                | E |                 |                                   |
|                | A |                 |                                   |
|                | R |                 |                                   |
|                | C |                 |                                   |
|                | H |                 |                                   |
|                | ( |                 |                                   |
|                | p |                 |                                   |
|                | a |                 |                                   |
|                | s |                 |                                   |
|                | s |                 |                                   |
|                | i |                 |                                   |
|                | v |                 |                                   |
|                | e |                 |                                   |
|                | ) |                 |                                   |
|                |   |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                | R |                 |                                   |
|                | a |                 |                                   |
|                | d |                 |                                   |
|                | i |                 |                                   |
|                | o |                 |                                   |
|                | l |                 |                                   |
|                | o |                 |                                   |
|                | c |                 |                                   |
|                | a |                 |                                   |
|                | t |                 |                                   |
|                | i |                 |                                   |
|                | o |                 |                                   |
|                | n |                 |                                   |
|                | ~ |                 |                                   |
|                | ~ |                 |                                   |
|                |   |                 |                                   |
|                | [ |                 |                                   |
|                | M |                 |                                   |
|                | O |                 |                                   |
|                | D |                 |                                   |
|                | ] |                 |                                   |
|                | { |                 |                                   |
|                | . |                 |                                   |
|                | u |                 |                                   |
|                | n |                 |                                   |
|                | d |                 |                                   |
|                | e |                 |                                   |
|                | r |                 |                                   |
|                | l |                 |                                   |
|                | i |                 |                                   |
|                | n |                 |                                   |
|                | e |                 |                                   |
|                | } |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 4 |                 |                                   |
|                | 0 |                 |                                   |
|                | S |                 |                                   |
|                | 5 |                 |                                   |
|                | . |                 |                                   |
|                | 3 |                 |                                   |
|                | 4 |                 |                                   |
|                | 1 |                 |                                   |
+----------------+---+-----------------+-----------------------------------+
| **231 - 235**  |   | **~~231~~       | See previous band adjustment.     |
|                |   | [231.5          |                                   |
| FIXED          |   | ]{.underline} - |                                   |
|                |   | 235**           |                                   |
| F              |   |                 |                                   |
| IXED-SATELLITE |   | FIXED           |                                   |
| (s             |   |                 |                                   |
| pace-to-Earth) |   | FIXED-SATELLITE |                                   |
|                |   | (               |                                   |
| MOBILE         |   | space-to-Earth) |                                   |
|                |   |                 |                                   |
| Radiolocation  |   | MOBILE          |                                   |
|                |   |                 |                                   |
|                |   | Radiolocation   |                                   |
+----------------+---+-----------------+-----------------------------------+

+-----------------+-----------------+-----------------------------------+
| **GHz**         |                 |                                   |
|                 |                 |                                   |
| **200-275       |                 |                                   |
| (continued)**   |                 |                                   |
+-----------------+-----------------+-----------------------------------+
| Current         | Proposed        | Reason for Change / Remarks       |
| Allocations     | Allocations     |                                   |
+-----------------+-----------------+-----------------------------------+
| Regions 1,2,3   | Regions 1,2,3   |                                   |
+-----------------+-----------------+-----------------------------------+
| **235-238**     | **235-238**     | Passive sensors are limited to    |
|                 |                 | microwave limb sounding in the    |
| EARTH           | EARTH           | band 235-238 GHz.                 |
| EXPLOR          | EXPLOR          |                                   |
| ATION-SATELLITE | ATION-SATELLITE | FSS (space-to-Earth) reallocated  |
| (passive)       | (passive)       | elsewhere.                        |
|                 |                 |                                   |
| FIXED           | \[FIXED\]       | Fixed and mobile services may     |
|                 |                 | need to be relocated from this    |
| FIXED-SATELLITE | ~~              | band after results of sharing     |
| (               | FIXED-SATELLITE | studies are known.                |
| space-to-Earth) | (sp             |                                   |
|                 | ace-to-Earth)~~ | S5.340 to be added if all active  |
| MOBILE          |                 | services need to be relocated.    |
|                 | \[MOBILE\]      |                                   |
| SPACE RESEARCH  |                 | Radio astronomy allocation        |
| (passive)       | [RADIO          | satisfies requirement for radio   |
|                 | ASTRONOMY       | astronomy spectral line and wide  |
|                 | \[S5.ZZZ        | band continuum observations.      |
|                 | \]]{.underline} |                                   |
|                 |                 | New footnote S5.ZZZ, along with   |
|                 | SPACE RESEARCH  | RES ZZZ to be added, if active    |
|                 | (passive)       | services do not require to be     |
|                 |                 | reallocated.                      |
|                 | \[S5.340\]      |                                   |
+-----------------+-----------------+-----------------------------------+
| **238-241**     | **238-241**     |                                   |
|                 |                 |                                   |
| FIXED           | FIXED           |                                   |
|                 |                 |                                   |
| FIXED-SATELLITE | FIXED-SATELLITE |                                   |
| (               | (               |                                   |
| space-to-Earth) | space-to-Earth) |                                   |
|                 |                 |                                   |
| MOBILE          | MOBILE          |                                   |
|                 |                 |                                   |
| Radiolocation   | [RADIONAVIGATI  |                                   |
|                 | ON]{.underline} |                                   |
|                 |                 |                                   |
|                 | [RADIONAV       |                                   |
|                 | IGATION-SATELLI |                                   |
|                 | TE]{.underline} |                                   |
|                 |                 |                                   |
|                 | Radiolocation   |                                   |
+-----------------+-----------------+-----------------------------------+
| **241-248**     | **241-248**     | Radio astronomy allocation and    |
|                 |                 | new footnote S5.ZZZ, along with   |
| RADIOLOCATION   | [RADIO          | RES ZZZ satisfy requirement for   |
|                 | ASTRONOMY       | radio astronomy spectral line and |
| Amateur         | S5.Z            | wide band continuum observations  |
|                 | ZZ]{.underline} | from a few remote locations       |
| Am              |                 | world-wide.                       |
| ateur-Satellite | RADIOLOCATION   |                                   |
|                 |                 | Band added to those listed under  |
| S5.138          | Amateur         | MOD S5.149                        |
|                 |                 |                                   |
|                 | Am              | No change in sharing between      |
|                 | ateur-Satellite | services, except for introduction |
|                 |                 | of RAS allocation in band.        |
|                 | S5.138 [MOD     |                                   |
|                 | S5.1            |                                   |
|                 | 49]{.underline} |                                   |
+-----------------+-----------------+-----------------------------------+

+----------------+----------------+----------------------------------+
| **GHz**        |                |                                  |
|                |                |                                  |
| **200-275      |                |                                  |
| (continued)**  |                |                                  |
+----------------+----------------+----------------------------------+
| Current        | Proposed       | Reason for Change / Remarks      |
| Allocations    | Allocations    |                                  |
+----------------+----------------+----------------------------------+
| Regions 1,2,3  | Regions 1,2,3  |                                  |
+----------------+----------------+----------------------------------+
| **248-250**    | **248 -250**   | RAS added on a secondary basis.  |
|                |                |                                  |
| AMATEUR        | AMATEUR        | No change in sharing between     |
|                |                | active services.                 |
| AMA            | AMA            |                                  |
| TEUR-SATELLITE | TEUR-SATELLITE |                                  |
|                |                |                                  |
|                | [Radio         |                                  |
|                | Astronom       |                                  |
|                | y]{.underline} |                                  |
+----------------+----------------+----------------------------------+
| **250-252**    | **250 - 252**  | Limb sounding of nitrous oxide   |
|                |                | near 251 GHz.                    |
| EARTH          | EARTH          |                                  |
| EXPLORA        | EXPLORA        | Add radio astronomy to the other |
| TION-SATELLITE | TION-SATELLITE | passive services. Addition of    |
| (passive)      | (passive)      | another passive service does not |
|                |                | alter sharing scenario.          |
| SPACE RESEARCH | [RADIO         |                                  |
| (passive)      | ASTRONOM       | S5.149 and S5.555 deleted.       |
|                | Y]{.underline} | S5.340 modified, to reflect      |
| S5.149 S5.555  |                | passive nature of band.          |
|                | SPACE RESEARCH |                                  |
|                | (passive)      |                                  |
|                |                |                                  |
|                | ~~S5.149~~     |                                  |
|                | ~~S5.555~~     |                                  |
|                | [MOD           |                                  |
|                | S5.34          |                                  |
|                | 0]{.underline} |                                  |
+----------------+----------------+----------------------------------+
| **252-265**    | **252-265**    | Directional indicator added to   |
|                |                | MSS allocation, paired with      |
| MOBILE S5.553  | [FIXED MOD     | 190-200 GHz band. Atmospheric    |
|                | S5.55          | absorption in this band is       |
| MO             | 3]{.underline} | relatively constant and higher   |
| BILE-SATELLITE |                | than in the paired downlink      |
|                | MOBILE         | band.                            |
| R              | [MO            |                                  |
| ADIONAVIGATION | D]{.underline} | Radio astronomy allocation and   |
|                | S5.553         | new footnote S5.ZZZ, along with  |
| RADIONAVIGA    |                | RES ZZZ satisfy requirement for  |
| TION-SATELLITE | MO             | radio astronomy spectral line    |
|                | BILE-SATELLITE | (secondary allocation to radio   |
| S5.149 S5.385  | [(             | astronomy at 257.5 - 258 GHz     |
| S5.554 S5.555  | Earth-to-space | deleted) and wide band continuum |
| S5.564         | )]{.underline} | observations from a few remote   |
|                |                | locations world-wide.            |
|                | [RADIO         |                                  |
|                | ASTRONOMY      | Band added to those listed under |
|                | S5.ZZ          | MOD S5.149.                      |
|                | Z]{.underline} |                                  |
|                |                | Band deleted from S5.385.        |
|                | R              | Footnote S5.564 no longer        |
|                | ADIONAVIGATION | needed.                          |
|                |                |                                  |
|                | RADIONAVIGA    |                                  |
|                | TION-SATELLITE |                                  |
|                |                |                                  |
|                | [MOD           |                                  |
|                | S5.14          |                                  |
|                | 9]{.underline} |                                  |
|                | ~~S5.385~~ MOD |                                  |
|                | S5.554         |                                  |
|                | ~~S5.555~~     |                                  |
|                | ~~S5.564~~     |                                  |
+----------------+----------------+----------------------------------+

+----------------+----------------+----------------------------------+
| **GHz**        |                |                                  |
|                |                |                                  |
| **200-275      |                |                                  |
| (continued)**  |                |                                  |
+----------------+----------------+----------------------------------+
| Current        | Proposed       | Reason for Change / Remarks      |
| Allocations    | Allocations    |                                  |
+----------------+----------------+----------------------------------+
| Regions 1,2,3  | Regions 1,2,3  |                                  |
+----------------+----------------+----------------------------------+
| **265-275**    | **265-275**    | Footnote S5.ZZZ added to Radio   |
|                |                | Astronomy allocation in this     |
| FIXED          | FIXED          | band.                            |
|                |                |                                  |
| F              | F              |                                  |
| IXED-SATELLITE | IXED-SATELLITE |                                  |
| (E             | (E             |                                  |
| arth-to-space) | arth-to-space) |                                  |
|                |                |                                  |
| MOBILE         | MOBILE         |                                  |
|                |                |                                  |
| RADIO          | RADIO          |                                  |
| ASTRONOMY      | ASTRONOMY [S   |                                  |
|                | 5.ZZ           |                                  |
| S5.149         | Z]{.underline} |                                  |
|                |                |                                  |
|                | [MO            |                                  |
|                | D]{.underline} |                                  |
|                | S5.149         |                                  |
+----------------+----------------+----------------------------------+
| **275-400**    | **275 -        | Change upper limit for           |
|                | ~~400~~ [1     | applicability of footnote MOD    |
| (Not           | 000]           | S5.565, to account for various   |
| allocated)     | {.underline}** | passive service needs above 275  |
| S5.565         |                | GHz.                             |
|                | (Not           |                                  |
|                | allocated)     | Many lines and windows for radio |
|                | [MO            | astronomy and EES applications   |
|                | D]{.underline} | above 275 GHz.                   |
|                | S5.565         |                                  |
+----------------+----------------+----------------------------------+

**Footnotes Applicable in the 71 - 1000 GHz Frequency Range**

+---------+-------------------+-------------------+-------------------+
| **S     | The following     |                   |                   |
| 5.138** | bands:            |                   |                   |
|         |                   |                   |                   |
|         | 6 765 - 6 795 kHz |                   |                   |
|         | (center frequency |                   |                   |
|         | 6 780 kHz),       |                   |                   |
|         |                   |                   |                   |
|         | 433.05 - 434.79   |                   |                   |
|         | MHz (center       |                   |                   |
|         | frequency 433.92  |                   |                   |
|         | MHz) in Region 1  |                   |                   |
|         | except in the     |                   |                   |
|         | countries         |                   |                   |
|         | mentioned in No   |                   |                   |
|         | S5.280,           |                   |                   |
|         |                   |                   |                   |
|         | 61 - 61.5 GHz     |                   |                   |
|         | (center frequency |                   |                   |
|         | 61.25 GHz),       |                   |                   |
|         |                   |                   |                   |
|         | 122 - 123 GHz     |                   |                   |
|         | (center frequency |                   |                   |
|         | 122.5 GHz), and   |                   |                   |
|         |                   |                   |                   |
|         | 244 - 246 GHz     |                   |                   |
|         | (center frequency |                   |                   |
|         | 245 GHz)          |                   |                   |
|         |                   |                   |                   |
|         | are designated    |                   |                   |
|         | for industrial,   |                   |                   |
|         | scientific and    |                   |                   |
|         | medical (ISM)     |                   |                   |
|         | applications. The |                   |                   |
|         | use of these      |                   |                   |
|         | frequency bands   |                   |                   |
|         | for ISM           |                   |                   |
|         | applications      |                   |                   |
|         | shall be subject  |                   |                   |
|         | to special        |                   |                   |
|         | authorization by  |                   |                   |
|         | the               |                   |                   |
|         | administration    |                   |                   |
|         | concerned, in     |                   |                   |
|         | agreement with    |                   |                   |
|         | other             |                   |                   |
|         | administrations   |                   |                   |
|         | whose             |                   |                   |
|         | r                 |                   |                   |
|         | adiocommunication |                   |                   |
|         | services might be |                   |                   |
|         | affected. In      |                   |                   |
|         | applying this     |                   |                   |
|         | provision,        |                   |                   |
|         | administrations   |                   |                   |
|         | shall have due    |                   |                   |
|         | regard to the     |                   |                   |
|         | latest relevant   |                   |                   |
|         | ITU-R             |                   |                   |
|         | Recommendations.  |                   |                   |
+---------+-------------------+-------------------+-------------------+
| **MOD   | In making         |                   |                   |
| S       | assignments to    |                   |                   |
| 5.149** | stations of other |                   |                   |
|         | services to which |                   |                   |
|         | the bands:        |                   |                   |
+---------+-------------------+-------------------+-------------------+
|         | 13 360-13 410     | 22.01-22.21       | [111.8-114.25     |
|         | kHz,              | GHz\*,            | GHz,]{.underline} |
|         |                   |                   |                   |
|         | 25 550-25 670     | 22.21-22.5 GHz,   | 140.69-140.98     |
|         | kHz,              |                   | GHz\*,            |
|         |                   | 22.81-22.86       |                   |
|         | 37.5-38.25 MHz,   | GHz\*,            | [141-148.5        |
|         |                   |                   | GHz,]{.underline} |
|         | 73-74.6 MHz       | 23.07-23.12       |                   |
|         |                   | GHz\*,            | [148.5-151.5      |
|         | in Regions 1 and  |                   | GHz,]{.underline} |
|         | 3,                | 31.2-31.3 GHz,    |                   |
|         |                   |                   | ~~144.68-144.98   |
|         | 150.05-153 MHz in | 31.5-31.8 GHz in  | GHz\*,~~          |
|         |                   |                   |                   |
|         | Region 1,         | Regions 1 and 3,  | ~~145.45-145.75   |
|         |                   |                   | GHz\*,~~          |
|         | 322-328.6 MHz\*,  | 36.43-36.5 GHz\*, |                   |
|         |                   |                   | ~~146.82-147.12   |
|         | 406.1-410 MHz,    | 42.5-43.5 GHz,    | GHz\*,~~          |
|         |                   |                   |                   |
|         | 608-614 MHz in    | 42.77-42.87       | ~~150-151         |
|         |                   | GHz\*,            | GHz\*,~~          |
|         | Regions 1 and 3,  |                   |                   |
|         |                   | 43.07-43.17       | 174.42-175.02     |
|         | 1 330-1 400       | GHz\*,            | GHz\*,            |
|         | MHz\*,            |                   |                   |
|         |                   | 43.37-43.47       | 177-177.4 GHz\*,  |
|         | 1 610.6-1 613.8   | GHz\*,            |                   |
|         | MHz\*,            |                   | 178.2-178.6       |
|         |                   | 48.94-49.04       | GHz\*,            |
|         | 1 660-1 670 MHz,  | GHz\*,            |                   |
|         |                   |                   | 181-181.46 GHz\*, |
|         | 1 718.8-1 722.2   | ~~72.77-72.91     |                   |
|         | MHz\*,            | GHz\*,~~          | ~~186.2-186.6     |
|         |                   |                   | GHz\*,~~          |
|         | 2 655-2 690 MHz,  | [76.5-81.5        |                   |
|         |                   | GHz,]{.underline} | [209-226          |
|         | 3 260-3 267       |                   | GHz,]{.underline} |
|         | MHz\*,            | [81.5-84.5        |                   |
|         |                   | GHz,]{.underline} | ~~250-251         |
|         | 3 332-3 339       |                   | GHz\*,~~          |
|         | MHz\*,            | [84.5-86          |                   |
|         |                   | GHz,]{.underline} | ~~257.5-258       |
|         | 3 345.8-3 352.5   |                   | GHz\*,~~          |
|         | MHz\*,            | ~~93.07-93.27     |                   |
|         |                   | GHz\*,~~          | ~~261-265 GHz,~~  |
|         | 4 825-4 835       |                   |                   |
|         | MHz\*,            | [92-94            | ~~262.24-262.76   |
|         |                   | GHz,]{.underline} | GHz\*,~~          |
|         | 4 950-4 990 MHz,  |                   |                   |
|         |                   | [94.1-95          | [252-265          |
|         | 4 990-5 000 MHz,  | GHz,]{.underline} | GHz,]{.underline} |
|         |                   |                   |                   |
|         | 6 650-6 675.2     | [95-100           | 265-275 GHz,      |
|         | MHz\*,            | GHz,]{.underline} |                   |
|         |                   |                   | ~~265.64-266.16   |
|         | 10.6-10.68 GHz,   | [100-102          | GHz\*,~~          |
|         |                   | GHz,]{.underline} |                   |
|         | 14.47-14.5 GHz\*, |                   | ~~267.34-267.86   |
|         |                   | ~~97.88-98.08     | GHz\*,~~          |
|         |                   | GHz\*,~~          |                   |
|         |                   |                   | ~~271.74-272.26   |
|         |                   | [102-105          | GHz\*~~           |
|         |                   | GHz,]{.underline} |                   |
|         |                   |                   |                   |
|         |                   | [105-109.5        |                   |
|         |                   | GHz,]{.underline} |                   |
+---------+-------------------+-------------------+-------------------+
|         | are allocated (\* |                   |                   |
|         | indicates radio   |                   |                   |
|         | astronomy use for |                   |                   |
|         | spectral line     |                   |                   |
|         | observations),    |                   |                   |
|         | administrations   |                   |                   |
|         | are urged to take |                   |                   |
|         | all practicable   |                   |                   |
|         | steps to protect  |                   |                   |
|         | the radio         |                   |                   |
|         | astronomy service |                   |                   |
|         | from harmful      |                   |                   |
|         | interference.     |                   |                   |
|         | Emissions from    |                   |                   |
|         | spaceborne or     |                   |                   |
|         | airborne stations |                   |                   |
|         | can be            |                   |                   |
|         | particularly      |                   |                   |
|         | serious sources   |                   |                   |
|         | of interference   |                   |                   |
|         | to the radio      |                   |                   |
|         | astronomy service |                   |                   |
|         | (see Nos. S4.5    |                   |                   |
|         | and S4.6 and      |                   |                   |
|         | Article S29).     |                   |                   |
+---------+-------------------+-------------------+-------------------+

+---------+------------------------------------------------------------+
| **MOD   | All emissions are prohibited in the following bands:       |
| S       |                                                            |
| 5.340** | 1 400-1 427 MHz,                                           |
|         |                                                            |
|         | 2 690-2 700 MHz except those provided for by Nos.          |
|         | **S5.421** and **S5.422**,                                 |
|         |                                                            |
|         | 10.68-10.7 GHz except those provided for by No.            |
|         | **S5.483**,                                                |
|         |                                                            |
|         | 15.35-15.4 GHz except those provided for by No.            |
|         | **S5.511**,                                                |
|         |                                                            |
|         | 23.6-24 GHz,                                               |
|         |                                                            |
|         | 31.3-31.5 GHz,                                             |
|         |                                                            |
|         | 31.5-31.8 GHz in Region 2,                                 |
|         |                                                            |
|         | 48.94-49.04 GHz from airborne stations,                    |
|         |                                                            |
|         | 50.2-50.4 GHz1 except those provided for by No.            |
|         | **S5.555A**,                                               |
|         |                                                            |
|         | 52.6-54.25 GHz,                                            |
|         |                                                            |
|         | 86-92 GHz,                                                 |
|         |                                                            |
|         | ~~105-116 GHz,~~                                           |
|         |                                                            |
|         | [109.5-111.8 GHz,]{.underline}                             |
|         |                                                            |
|         | [114.25-116 GHz,]{.underline}                              |
|         |                                                            |
|         | 140.69-140.98 GHz from airborne stations and from space    |
|         | stations in the space-to-Earth direction,                  |
|         |                                                            |
|         | [148.5-151.5 GHz,]{.underline}                             |
|         |                                                            |
|         | [164-167 GHz,]{.underline}                                 |
|         |                                                            |
|         | 182-185 GHz except those provided for by No. **S5.563**,   |
|         |                                                            |
|         | [190-191.8]{.underline}                                    |
|         |                                                            |
|         | [200-202 GHz,]{.underline}                                 |
|         |                                                            |
|         | [\[202-209 GHz,\]]{.underline}                             |
|         |                                                            |
|         | ~~217-228 GHz~~                                            |
|         |                                                            |
|         | [226-231.5 GHz,]{.underline}                               |
|         |                                                            |
|         | [\[235-238\]]{.underline}                                  |
|         |                                                            |
|         | [250-252 GHz]{.underline}                                  |
+---------+------------------------------------------------------------+
| **S     | In the bands 1 400 - 1 727 MHz, 101 - 120 GHz and 197 -    |
| 5.341** | 220 GHz, passive research is being conducted by some       |
|         | countries in a program for the search for intentional      |
|         | emissions of extraterrestrial origin.                      |
+---------+------------------------------------------------------------+
| **MOD   | *Additional allocation:* the bands 1 718.8 - 1 722.2 MHz,  |
| S       | ~~150 - 151 GHz, 174.42 - 175.02 GHz,~~ 177 - 177.4 GHz,   |
| 5.385** | 178.2 - 178.6 GHz, 181 - 181.46 GHz, [and]{.underline}     |
|         | 186.2 - 186.6 GHz ~~and 257.5 - 258 GHz~~ are also         |
|         | allocated to the radio astronomy service on a secondary    |
|         | basis for spectral line observations.                      |
+---------+------------------------------------------------------------+
| **MOD   | In the bands 43.5 - 47 GHz, 66 - 71 GHz, 95 - 100 GHz,     |
| S       | ~~134 - 142 GHz,~~ ~~190~~[191.8]{.underline} - 200 GHz    |
| 5.553** | and 252 - 265 GHz, stations in the [fixed and]{.underline} |
|         | land mobile service[s]{.underline} may be operated subject |
|         | to not causing harmful interference to the space           |
|         | radiocommunication services to which these bands are       |
|         | allocated (see No. **S5.43**).                             |
+---------+------------------------------------------------------------+
| **MOD   | In the bands 43.5 - 47 GHz, 66 - 71 GHz, 95 -100 GHz,      |
| S       | ~~134 - 142~~ [126 -- 134]{.underline} GHz,                |
| 5.554** | ~~190~~[191.8]{.underline} - 200 GHz and 252 - 265 GHz,    |
|         | satellite links connecting land stations at specified      |
|         | fixed points are also authorized when used in conjunction  |
|         | with the mobile-satellite service or the                   |
|         | radionavigation-satellite service.                         |
+---------+------------------------------------------------------------+
| **MOD   | *Additional allocation:* the bands 48.94 - 49.04 GHz~~,    |
| S       | 97.88 - 98.08 GHz, 140.69 - 140.98 GHz, 144.68 - 144.98    |
| 5.555** | GHz, 145.45 - 145.75 GHz, 146.82 ‑ 147.12 GHz, 250 - 251   |
|         | GHz and 262.24 - 262.76 GHz are~~ [is]{.underline} also    |
|         | allocated to the radio astronomy service on a primary      |
|         | basis.                                                     |
+---------+------------------------------------------------------------+
| ##      | In the bands 51.4 - 54.25 GHz, 58.2 - 59 GHz~~,~~          |
| ### MOD | [and]{.underline} 64 - 65 GHz~~, 72.77 ‑ 72.91 GHz and     |
|  S5.556 | 93.07 - 93.27 GHz~~, radio astronomy observations may be   |
|         | carried out under national arrangements.                   |
+---------+------------------------------------------------------------+
| ###     | In the bands 55.78-58.2 GHz, 59-64 GHz, 66-71 GHz,         |
| ##  MOD | ~~123-134~~ [122.5-126]{.underline} GHz, 170-182 GHz and   |
|  S5.558 | 185-190 GHz, stations in the aeronautical mobile service   |
|         | may be operated subject to not causing harmful             |
|         | interference to the inter‑satellite service (see No.       |
|         | **S5.43**).                                                |
+---------+------------------------------------------------------------+
| ##      | In the band~~s~~ 59 -64 GHz ~~and 126 - 134 GHz,~~         |
| ### MOD | airborne radars in the radiolocation service may be        |
|  S5.559 | operated subject to not causing harmful interference to    |
|         | the inter-satellite service (see No. **S5.43**)            |
+---------+------------------------------------------------------------+
| #####   | In the band 78 - 79 GHz radars located on space stations   |
|  S5.560 | may be operated on a primary basis in the earth            |
|         | exploration-satellite service and in the space research    |
|         | service.                                                   |
+---------+------------------------------------------------------------+
| **MOD   | In the band ~~84 - 86~~ [74-76]{.underline} GHz, stations  |
| S       | in the fixed~~,~~ [and]{.underline} mobile ~~and           |
| 5.561** | broadcasting~~ services shall not cause harmful            |
|         | interference to broadcasting-satellite stations operating  |
|         | in accordance with the decisions of the appropriate        |
|         | frequency assignment planning conference for the           |
|         | broadcasting-satellite service.                            |
+---------+------------------------------------------------------------+
| **S     | The use of the band 94-94.1 GHz by the earth               |
| 5.562** | exploration-satellite (active) and space research (active) |
|         | services is limited to spaceborne cloud radars.            |
+---------+------------------------------------------------------------+
| ###     | *Additional allocation:* in Germany, Argentina, Spain,     |
| ##  SUP | Finland, France, India, Italy, the Netherlands and Sweden, |
|  S5.564 | the band 261 - 265 GHz is also allocated to the radio      |
|         | astronomy service on a primary basis.                      |
+---------+------------------------------------------------------------+
| **MOD   | The frequency band 275 ‑ ~~400~~ [1000]{.underline} GHz    |
| S       | may be used by administrations for experimentation with,   |
| 5.565** | and development of, various active and passive services.   |
|         | In this band a need has been identified for the following  |
|         | spectral line measurements for passive services:           |
|         |                                                            |
|         | --- radio astronomy service: ~~278 - 280 GHz and 343 - 348 |
|         | GHz~~; [275 -323 GHz, 327-371 GHz,]{.underline}            |
|         |                                                            |
|         | [388 - 434 GHz, 426 - 442 GHz, 453 -510 GHz, 623 - 711 GHz |
|         | and 795 - 909 GHz]{.underline}                             |
|         |                                                            |
|         | --- space research service (passive) and earth             |
|         | exploration-satellite service (passive): 275 - 277 GHz,    |
|         | ~~300~~[299]{.underline} - 30~~2~~[6]{.underline} GHz,     |
|         | 3~~24~~[16]{.underline} - 3~~26~~[34]{.underline} GHz,     |
|         | 3~~45~~[39]{.underline} - 34~~7~~[8]{.underline} GHz,      |
|         | 363 - 365 GHz[,]{.underline} ~~and~~                       |
|         | 37~~9~~[1.5]{.underline} - 3~~81~~[78.5]{.underline} GHz[, |
|         | 409 - 411 GHz, 419 - 430 GHz, 443 - 444 GHz, 485 - 487     |
|         | GHz, 498 - 505 GHz, 523 - 527 GHz, 538 - 584 GHz, 624 -    |
|         | 629 GHz, 640 - 653 GHz and 951 - 956 GHz]{.underline}.     |
+---------+------------------------------------------------------------+
| **ADD   | Use of the bands 116-123 GHz by the inter-satellite        |
| S       | service is limited to satellites in the                    |
| 5.XXX** | geostationary-satellite orbit. The single-entry power      |
|         | flux-density, at all altitudes from 0 km to 1 000 km above |
|         | the Earth\'s surface and in the vicinity of all            |
|         | geostationary orbital positions occupied by passive        |
|         | sensors, produced by a station in the inter-satellite      |
|         | service, for all conditions and for all methods of         |
|         | modulation, shall not exceed ‑148 dBW/m^2^/MHz for all     |
|         | angles of arrival.                                         |
+---------+------------------------------------------------------------+
| ##      | In the band 155.5-158.5 GHz, the allocation to the Earth   |
| ### ADD | exploration-satellite (passive) and space research         |
|  S5.AAA | (passive) services shall terminate on 1 January 2018.      |
+---------+------------------------------------------------------------+
| **ADD   | The date of entry for the allocation to the fixed and      |
| S       | mobile services in the band 155.5 -- 158.5 GHz shall be 1  |
| 5.BBB** | January 2018.                                              |
+---------+------------------------------------------------------------+
|         |                                                            |
+---------+------------------------------------------------------------+
| **ADD   | Use of this allocation is limited to space-based radio     |
| S       | astronomy only.                                            |
| 5.CCC** |                                                            |
+---------+------------------------------------------------------------+
| **ADD   | The 81- 81.5 GHz band is also allocated to the amateur and |
| S       | amateur-satellite services on a secondary basis.           |
| 5.DDD** |                                                            |
+---------+------------------------------------------------------------+
| **ADD   | The band 75.5-76 GHz is also allocated to the amateur and  |
| S       | amateur-satellite services on a primary basis until the    |
| 5.EEE** | year 200\[6\].                                             |
+---------+------------------------------------------------------------+
| **ADD   | Use of the bands 174.5-182 GHz by the inter-satellite      |
| S       | service is limited to satellites in the                    |
| 5.YYY** | geostationary-satellite orbit. The single-entry power      |
|         | flux-density, at all altitudes from 0 km to 1 000 km above |
|         | the Earth\'s surface and in the vicinity of all            |
|         | geostationary orbital positions occupied by passive        |
|         | sensors, produced by a station in the inter-satellite      |
|         | service, for all conditions and for all methods of         |
|         | modulation, shall not exceed -144 dBW/m^2^/MHz for all     |
|         | angles of arrival.                                         |
+---------+------------------------------------------------------------+
| **ADD   | Use of this band by the radio astronomy service shall be   |
| S       | in accordance with the terms of Resolution ZZZ             |
| 5.ZZZ** |                                                            |
+---------+------------------------------------------------------------+

**RESOLUTION ZZZ**

**USE OF THE BANDS \[ \] BY THE RADIO ASTRONOMY SERVICE**

The World Radiocommunication Conference (Istanbul, 2000),

*considering*

*a)* that a large number of spectral lines of astrophysical interest
above 71 GHz provide unique information about cosmic processes, such as
the chemistry of the interstellar medium and the formation of stars and
planets, and that this information cannot be obtained from any other
source;

*b)* that Doppler shifted lines, which are also of great interest for
astronomical studies, are found far removed from the rest frequency of
some spectral lines and that highly Doppler shifted lines may offer the
only means to obtain information about the very early Universe and the
formation of galaxies;

*c)* that mm-wave radio astronomy receivers are designed to cover
substantial portions of the atmospheric windows above 70 GHz to take
advantage of the information contained in spectral lines, as well as in
continuum radiation;

*d)* that several Administrations operate mm-wave radio astronomy
observatories and that some are building or are planning to build a
limited number of large new facilities to exploit the most advanced
technologies; and that these facilities are intended to serve the needs
of the worldwide scientific community;

*f)* that mm-wave observatories must be located on high mountain tops or
plateaus to take advantage of the driest possible atmospheric conditions
necessary to obtain high quality observations; and require substantial
investments on behalf of the scientific communities concerned, and that
therefore their number will remain low,

*noting*

that sharing between the radio astronomy service and other terrestrial
services operating in bands above 71 GHz is facilitated by the natural
attenuation provided by atmospheric gases, and that it can be further
facilitated by adequate geographic separation,

*urges*

Administrations to establish coordination zones around mm-wave radio
astronomy sites operating in bands above 71 GHz. Coordination zone radii
should be determined following the procedure outlined in Rec. ITU-R
RA.1031-1, separately for ground based transmitters, airborne
transmitters and transmitters that may be located on High Altitude
Platforms (HAPS).

*resolves:*

1\. that in the frequency bands referred to in this Resolution,
co-primary status of the radio astronomy service shall be recognized
within coordination zones established by Administrations. No
coordination requirements should be imposed upon terrestrial services
outside established coordination zones.

2\. that in the bands referred to in this Resolution, co-primary
services operating stations within a coordination zone should coordinate
their operations with affected radio astronomy stations within five
years of the date of notification of the radio astronomy site to the
Radiocommunication Bureau

Annex 1 lists the radio astronomy sites that operate, or plan to operate
in the bands referred to in this Resolution as of \[June 8, 2000\].
Observatories that operate only up to 92 GHz are identified with \*\*\*
under the SITE column.

**\[ Annex 1 \]\***

**List of Radio Astronomical Observatories Operating**

**in Bands Above 71 GHz**

**REGION 1**

+-----------+--------------+--------+--------+-----+-----+-----------+
| **        | **SITE**     | **     | *      | **  | **  | **        |
| COUNTRY** |              | LONG** | *LAT** | ALT | DIA | REMARKS** |
|           |              |        |        | (m  | M** |           |
|           |              | **o \' | **o \' | )** |     |           |
|           |              | \"**   | \"**   |     | *   |           |
|           |              |        |        |     | *(m |           |
|           |              |        |        |     | )** |           |
+-----------+--------------+--------+--------+-----+-----+-----------+
| **        | *            | **24   | **60   | **6 | **  |           |
| Finland** | *Metsahovi** | 23     | 13     | 1** | 13. |           |
|           |              | 17**   | 04**   |     | 7** |           |
+-----------+--------------+--------+--------+-----+-----+-----------+
| *         | **Bordeaux** | **-00  | **44   | **7 | *   |           |
| *France** |              | 31     | 50     | 3** | *2. |           |
|           | **Plateau de | 37**   | 10**   |     | 5** |           |
|           | Bure**[^1]   |        |        | **  |     |           |
|           |              | **05   | **44   | 255 | **1 |           |
|           |              | 54     | 38     | 2** | 5** |           |
|           |              | 26**   | 01**   |     |     |           |
+-----------+--------------+--------+--------+-----+-----+-----------+
| **        | **           | **06   | **50   | *   | *   |           |
| Germany** | Effelsberg** | 53     | 31     | *36 | *10 |           |
|           |              | 00**   | 32**   | 9** | 0** |           |
+-----------+--------------+--------+--------+-----+-----+-----------+
| **Italy** | **Medi       | **11   | **44   | **4 | **3 | **EVLBI** |
|           | cina\*\*\*** | 38     | 31     | 4** | 2** |           |
|           |              | 43**   | 14**   |     |     | **EVLBI** |
|           | **           |        |        |     |     |           |
|           | Noto\*\*\*** | **15   | **36   |     |     |           |
|           |              | 03     | 31     |     |     |           |
|           |              | 00**   | 48**   |     |     |           |
+-----------+--------------+--------+--------+-----+-----+-----------+
| *         | **Zele       | **41   | **43   | **  |     |           |
| *Russia** | nchukskaya** | 26     | 39     | 210 |     |           |
|           |              | 30**   | 12**   | 0** |     |           |
+-----------+--------------+--------+--------+-----+-----+-----------+
| **Spain** | **Pico       | **-03  | **37   | **  | **3 |           |
|           | Veleta**     | 23     | 03     | 287 | 0** |           |
|           |              | 34**   | 58**   | 0** |     |           |
|           | **Robledo**  |        |        |     |     |           |
|           |              | **-04  | **40   | *   |     |           |
|           | **Yepes**    | 14     | 25     | *76 |     |           |
|           |              | 57**   | 38**   | 1** |     |           |
|           |              |        |        |     |     |           |
|           |              | **-03  | **40   | *   |     |           |
|           |              | 06     | 31     | *93 |     |           |
|           |              | 00**   | 30**   | 1** |     |           |
+-----------+--------------+--------+--------+-----+-----+-----------+
| *         | **Geb        | **29   | **40   | *   |     |           |
| *Turkey** | se-Kocaeli** | 26     | 47     | *20 |     |           |
|           |              | 52**   | 06**   | 0** |     |           |
+-----------+--------------+--------+--------+-----+-----+-----------+

**\* ALL OF ANNEX 1 SHOULD BE CONSIDERED IN \[ \]**

**REGION 2**

+--------+------------+---------+---------+-----+-----+---+--------------+
| **COU  | **SITE**   | **      | *       | *   | **  |   | **REMARKS**  |
| NTRY** |            | LONG.** | *LAT.** | *AL | DIA |   |              |
|        |            |         |         | T** | M** |   |              |
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|        |            |         |         | *(m | *(m |   |              |
|        |            |         |         | )** | )** |   |              |
+========+============+=========+=========+=====+=====+===+==============+
| **C    | **San      | **67 44 | **-23   | **  | **1 | * |              |
| hile** | Pedro de   | 00**    | 02**    | 500 | 5** | * |              |
|        | Atacama**  |         |         | 0** |     | M |              |
|        |            | **70 44 | **-29   |     | **  | M |              |
|        | **La       | 04**    | 15 34** | **  | 4** | A |              |
|        | Silla**    |         |         | 230 |     | ( |              |
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+--------+------------+---------+---------+-----+-----+---+--------------+
| **Me   | **Sierra   | **97 18 | **18 59 | **  | **5 | * |              |
| xico** | Negra**    | 00**    | 00**    | 450 | 0** | * |              |
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+--------+------------+---------+---------+-----+-----+---+--------------+
| *      | **Green\   | **79 50 | **38 25 | *   | *   | * |              |
| *USA** | Bank,W     | 24**    | 59**    | *94 | *10 | * |              |
|        | VA\*\*\*** |         |         | 6** | 0** | N |              |
|        |            | **107   | **34 04 |     |     | R |              |
|        | **Socorro, | 37 06** | 44**    | **  | **2 | A |              |
|        | NM         |         |         | 215 | 5** | O |              |
|        | \*\*\***   | **\.    | *       | 5** |     | - |              |
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|        |            | **64 35 |         | \.. | ..\ | * |              |
|        | **St.      | 01**    | **17 45 | .\. | ... | * |              |
|        | Croix, VI  |         | 24**    | ... | .** |   |              |
|        | \*\*\***   | **71 59 |         | .** |     | * |              |
|        |            | 12**    | **42 56 |     | **2 | * |              |
|        | **Hancock, |         | 01**    | **4 | 5** | N |              |
|        | NH         | **91 34 |         | 6** |     | R |              |
|        | \*\*\***   | 27**    | **41 46 |     | **2 | A |              |
|        |            |         | 17**    | *   | 5** | O |              |
|        | **North    | **\     |         | *34 |     | - |              |
|        | Liberty,\  | 103 56  | **30 38 | 0** | **2 | V |              |
|        | IO\*\*\*** | 41**    | 06**    |     | 5** | L |              |
|        |            |         |         | *   |     | A |              |
|        | **Ft.      | **106   | **\     | *27 | **2 | * |              |
|        | Davis, TX  | 14 44** | 35 46   | 2** | 5** | * |              |
|        | \*\*\***   |         | 31**    |     |     | [ |              |
|        |            | **108   |         | **  | **\ | ^ |              |
|        | **Los      | 07 09** | **34 18 | 164 | 2   | 4 |              |
|        | Alamos,**  |         | 04**    | 6** | 5** | ] |              |
|        |            | **\     |         |     |     |   |              |
|        | **NM       | 111 36  | **31 57 | **\ | **2 | * |              |
|        | \*\*\***   | 45**    | 23**    | 199 | 5** | * |              |
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|        | **Pie      | **118   | **\     |     | **2 | . |              |
|        | Town, NM   | 16 37** | 37 13   | **  | 5** | . |              |
|        | \*\*\***   |         | 54**    | 240 |     | . |              |
|        |            | **119   |         | 2** | **\ | \ |              |
|        | **Kitt     | 41 00** | **48 07 |     | 2   | . |              |
|        | Peak, AZ   |         | 52**    | **  | 5** | . |              |
|        | \*\*\***   | **\     |         | 194 |     | . |              |
|        |            | 155 27  | **\     | 6** | **2 | \ |              |
|        | **Owens    | 19**    | 19 48   |     | 5** | . |              |
|        | Valley,\   |         | 05**    | **\ |     | . |              |
|        | CA\*\*\*** | **\.    |         | 123 | **\ | . |              |
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|        | WA         |         | .\...** | *28 | *   | . |              |
|        | \*\*\***   | **111   |         | 6** | *\. | \ |              |
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|        | **Mauna    |         | 10**    | **\ | ... | . |              |
|        | Kea,\      | **72 20 |         | 375 | \.. | . |              |
|        | HI         | 40**    | **42 23 | 1** | .** | \ |              |
|        | \*\*\***   |         | 33**    |     |     | . |              |
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|        |            | 28 24** | **40 49 | ... | 13. | * |              |
|        | **Kitt     |         | 04**    | .** | 7** | * |              |
|        | Peak, AZ** | **71 29 |         |     |     |   |              |
|        |            | 19**    | **42 37 | **  | **  | * |              |
|        | **Amherst, |         | 23**    | 193 | 10. | * |              |
|        | MA**       | **155   |         | 0** | 4** | N |              |
|        |            | 28 20** | **19 49 |     |     | R |              |
|        | **Owens    |         | 33**    | *   | *   | A |              |
|        | Valley,    |         |         | *31 | *6. | O |              |
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|        | **Hat      |         |         | **  | **3 | B |              |
|        | Creek,     |         |         | 123 | 6** | A |              |
|        | CA**       |         |         | 6** |     | * |              |
|        |            |         |         |     | **  | * |              |
|        | *          |         |         | **  | 10. | [ |              |
|        | *Westford, |         |         | 104 | 4** | ^ |              |
|        | MA**       |         |         | 2** |     | 5 |              |
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|        | **Mauna    |         |         | *   |     |   |              |
|        | Kea, HI**  |         |         | *12 |     | * |              |
|        |            |         |         | 2** |     | * |              |
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|        | Kea, HI**  |         |         | **  |     | R |              |
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|        |            |         |         |     |     | [ |              |
|        |            |         |         |     |     | ^ |              |
|        |            |         |         |     |     | 6 |              |
|        |            |         |         |     |     | ] |              |
|        |            |         |         |     |     |   |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | B |              |
|        |            |         |         |     |     | I |              |
|        |            |         |         |     |     | M |              |
|        |            |         |         |     |     | A |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | [ |              |
|        |            |         |         |     |     | ^ |              |
|        |            |         |         |     |     | 7 |              |
|        |            |         |         |     |     | ] |              |
|        |            |         |         |     |     |   |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | H |              |
|        |            |         |         |     |     | a |              |
|        |            |         |         |     |     | y |              |
|        |            |         |         |     |     | s |              |
|        |            |         |         |     |     | t |              |
|        |            |         |         |     |     | a |              |
|        |            |         |         |     |     | c |              |
|        |            |         |         |     |     | k |              |
|        |            |         |         |     |     | O |              |
|        |            |         |         |     |     | b |              |
|        |            |         |         |     |     | s |              |
|        |            |         |         |     |     | . |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     |   |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | J |              |
|        |            |         |         |     |     | . |              |
|        |            |         |         |     |     | C |              |
|        |            |         |         |     |     | . |              |
|        |            |         |         |     |     | M |              |
|        |            |         |         |     |     | a |              |
|        |            |         |         |     |     | x |              |
|        |            |         |         |     |     | w |              |
|        |            |         |         |     |     | e |              |
|        |            |         |         |     |     | l |              |
|        |            |         |         |     |     | l |              |
|        |            |         |         |     |     | T |              |
|        |            |         |         |     |     | e |              |
|        |            |         |         |     |     | l |              |
|        |            |         |         |     |     | . |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     |   |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | C |              |
|        |            |         |         |     |     | S |              |
|        |            |         |         |     |     | O |              |
|        |            |         |         |     |     | * |              |
|        |            |         |         |     |     | * |              |
+--------+------------+---------+---------+-----+-----+---+--------------+

**REGION 3**

+----------+-------------+--------+--------+-----+-----+------------+
| **C      | **SITE**    | **L    | **     | **  | **  | *          |
| OUNTRY** |             | ONG.** | LAT.** | ALT | DIA | *REMARKS** |
|          |             |        |        | .** | M** |            |
|          |             | **o \' | **o \' |     |     |            |
|          |             | \"**   | \"**   | **  | **  |            |
|          |             |        |        | m** | m** |            |
+----------+-------------+--------+--------+-----+-----+------------+
| A        | Parkes      | 148 15 | -33 00 | 60  | 64  | Austr.     |
| USTRALIA |             | 44     | 00     |     |     | Tel.       |
|          | Mopra       |        |        |     |     | Compact    |
|          |             | 149 05 | -31 16 |     |     | Array      |
|          | Narrabri,   | 58     | 04     |     |     |            |
|          | NSW         |        |        |     |     |            |
|          |             | 149 32 | -30 59 |     |     |            |
|          |             | 56     | 52     |     |     |            |
+----------+-------------+--------+--------+-----+-----+------------+
| CHINA    | Delingha    | 97 43  | 37 22  | 3   | 1   |            |
|          |             | 75     | 43     | 200 | 3.7 |            |
+----------+-------------+--------+--------+-----+-----+------------+
| JAPAN    | N           | 138 28 | 35 56  | 1   | 45  | Comm. Res. |
|          | obeyama[^8] | 32     | 29     | 350 |     | Lab.       |
|          |             |        |        |     | 34  |            |
|          | Kashima     | 140 39 | 35 57  | 50  |     | Only       |
|          |             | 46     | 15     |     | 10  | \>300GHz   |
|          | Mizusawa    |        |        | 87  |     |            |
|          |             | 141 08 | 39 08  |     | 4   | VERA       |
|          | Nagoya      | 09     | 00     | 70  |     | (planned)  |
|          |             |        |        |     | 1.2 |            |
|          | Mt. Fuji    | 136 58 | 35 08  | 3   |     |            |
|          |             | 24     | 55     | 776 | 20  |            |
|          | Kagoshima   |        |        |     |     |            |
|          |             | 138 45 | 35 21  | 520 |     |            |
|          |             | 06     | 30     |     |     |            |
|          |             |        |        |     |     |            |
|          |             | 130 26 | 31 44  |     |     |            |
|          |             | 32     | 52     |     |     |            |
+----------+-------------+--------+--------+-----+-----+------------+
| KOREA    | Taejon      | 127 22 | 36 23  | 120 | 1   |            |
|          |             | 18     | 54     |     | 3.7 |            |
+----------+-------------+--------+--------+-----+-----+------------+

**OTHER**

+----------+-------------+--------+--------+-----+-----+------------+
| **C      | **SITE**    | **L    | **     | **  | **  | *          |
| OUNTRY** |             | ONG.** | LAT.** | ALT | DIA | *REMARKS** |
|          |             |        |        | .** | M** |            |
|          |             | **o \' | **o \' |     |     |            |
|          |             | \"**   | \"**   | **  | **  |            |
|          |             |        |        | m** | m** |            |
+==========+=============+========+========+=====+=====+============+
| #        | **A         |        | **-90  |     |     |            |
|          | NTARCTICA** |        | 00     |     |     |            |
|          |             |        | 00**   |     |     |            |
+----------+-------------+--------+--------+-----+-----+------------+

## Analysis of Passive Services 71 -- 275 Proposal

-   The fixed service (FS) had 106.4 GHz of allocations and the proposal
    gives them 127.6 GHz although some 12 GHz of this may have to be
    deleted if microwave limb sounders cannot share with terrestrial
    services. Furthermore, some 26.2 GHz of the total allocation are
    limited by footnote S5.553, although this is not likely a problem
    since the same limitation had previously existed for the mobile
    service in the same bands.

-   The mobile service (MS) had 142.4 GHz of allocations and the
    proposal gives them 127.6 GHz although some 12 GHz of this may have
    to be deleted if microwave limb sounders cannot share with
    terrestrial services. The cause of the remaining deficit is simply
    that there were no more places that mobile allocations could be
    made. Note that in all cases the mobile service and the fixed
    service are co-allocated whereas previously this was not always the
    case.

-   For the fixed-satellite service (FSS) analysis, see next page.

-   The mobile-satellite service (MSS) had 3 GHz of uplinks and 3 GHz of
    downlinks with 36 GHz undesignated. The proposal gives MSS 21 GHz of
    uplinks and 8.5 GHz of downlinks with 16.2 GHz undesignated.
    Although the imbalance could be viewed as a problem, the overall
    total bandwidth is actually a little larger than before and much of
    the undesignated allocations could be designated as downlinks to
    yield an adequate balance for future applications.

-   The inter-satellite service (ISS) currently is allocated some 35 GHz
    of bandwidth. In the proposal, the allocation is for 27.75 GHz of
    ISS of any type and an additional 18.45 GHz of ISS allocations
    limited to inter-satellite links between GSO satellites only. The
    total bandwidth available for ISS is therefore actually increased to
    46.2 GHz, although about 40% of that is limited in use and another
    34% is shared with FSS and MSS downlinks.

-   Both the amateur and amateur-satellite services (AS & ASS) have 4.5
    GHz of primary allocations both currently and in the proposal,
    although the allocations have been relocated from their original
    positions in some cases.

-   The radiolocation service (RS) currently has 28 GHz allocated and in
    the proposal has 34 GHz allocated, partially due to the requested
    (consequential?) upgrade from 95 -- 100 GHz. Sharing in the 95 --
    100 GHz band may be problematic as there is also a primary MSS
    Earth-to-space allocation in the band.

-   The broadcast service (BS) had 2 GHz allocated which has been
    reduced in the proposal to 1.5 GHz. The broadcast-satellite service
    (BSS) currently has 2 GHz allocated and that allocation was simply
    shifted down in frequency somewhat (was centered at 85 GHz and is
    centered at 72 GHz in proposal.

-   The Earth exploration-satellite service (passive) (EESS (passive))
    had 62 GHz of primary allocations from 71 -- 275 GHz and in the
    proposal has 63.8 GHz although much give and take has occurred. One
    3 GHz band allocated to EESS (passive) will be released in 2018.
    Space research (passive) (SR (passive)) has duplicated these changes
    in allocations for the use of passive sensors. However, SR (passive)
    limited in use to space-based radio astronomy has gotten an
    additional 16.2 GHz of allocations co-primary with radio astronomy
    allocations.

-   The Earth exploration-satellite service (active) (EESS (active)) and
    space research (active) (SR (active)) has the exact same primary
    allocation for cloud radar from 94 -- 94.1 GHz in the proposal as in
    the current allocation tables.

-   The radio astronomy service (RAS) has increased its primary
    allocations from 48 GHz in the current tables to 135.15 GHz,
    although virtually all of these additional allocations are limited
    by footnote **S5.ZZZ**.

-   The radionavigation service (RNS) and radionavigation-satellite
    service (RNSS) both have 36 GHz allocated currently and are proposed
    to have 34.2 GHz allocated due to the 1.8 GHz decrease from 190 --
    200 GHz to 191.8 -- 200 GHz to enable the 183.3 ± 8.5 GHz allocation
    for passive sensors.

-   FSS allocations from 71 -- 275 GHz (current):

  ----------------- ----------------- ----------------- -----------------
  Band (GHz)        Bandwidth (GHz)   Downlink          Uplink

  71 -- 75.5        4.5                                 X

  81 -- 84          3                 X                 

                                                        

  92 -- 95          2.9                                 X

  102 -- 105        3                 X                 

                                                        

  149 -- 164        15                X                 

  202 -- 217        15                                  X

                                                        

  231 -- 241        10                X                 

  265 -- 275        10                                  X

                                                        

  Totals            \-                31                32.4
  ----------------- ----------------- ----------------- -----------------

FSS allocations 71 -- 275 GHz (proposed):

  ----------------- ----------------- ----------------- -----------------
  Band (GHz)        Bandwidth (GHz)   Downlink          Uplink

  71 - 76           5                 X                 

  81.5 - 86         4.5                                 X

                                                        

  126 - 134         8                 X                 

  209 - 217         8                                   X

                                                        

  158.5 - 164       5.5               X                 

  167 -- 174.8      7.8               X                 

  231.5 - 235       3.5               X                 

  238 - 241         3                 X                 

                                                        

  217 -- 226        9                                   X

  265 - 275         10                                  X

                                                        

  Totals            \-                32.8              31.5
  ----------------- ----------------- ----------------- -----------------

-   As can be seen from the tables, the total uplink and downlink FSS
    spectrum allocated in the proposal is actually slightly greater than
    is currently allocated. However, there are only three distinct
    uplink bands from 81.5 -- 85 GHz, 209 -- 226 GHz, and 265 -- 275
    GHz, while there are six distinct (non-contiguous) downlink bands
    from 71 -- 76 GHz, 126 -- 134 GHz, 158.5 -- 164 GHz, 167 -- 174.8
    GHz, 231.5 -- 235 GHz, and 238 -- 241 GHz. Furthermore, the two
    largest of these downlink bands must be shared with an ISS
    allocation.

-   Current Allocations from 71 -- 275 GHz

  --------------- ----------- ----------- ----------- ----------- ----------- ----------- --------- --------- --------- --------- -------- -------- ----------- ---------- ---------- --------- --------- --------- --------- ----------
  Band            FS          FSS         FSS         MS          MSS         MSS         MSS       ISS       AS        ASS       RS       BS       BSS         EESS       EESS       SRS       SRS       RAS       RNS       RNSS

  **(GHz)**                   **(s-E)**   **(E-s)**               **(s-E)**   **(E-s)**   **(?)**                                                   **(s-E)**   **(p)**    **(a)**    **(p)**   **(a)**                       

  71-74           3                       3           3           3                                                                                                                                                           

  74-75.5         1.5                     1.5         1.5                                                                                                                                                                     

  75.5-76                                                                                                     0.5       0.5                                                                                                   

  76-81                                                                                                                           5                                                                                           

  81-84           3           3                       3                       3                                                                                                                                               

  84-86           2                                   2                                                                                    2        2                                                                         

  86-92                                                                                                                                                         6                     6                   6                   

  92-94           2                       2           2                                                                           2                                                                                           

  94-94.1                                                                                                                         0.1                                      0.1                  0.1                           

  94.1-95         0.9                     0.9         0.9                                                                         0.9                                                                                         

  95-100                                              5                                   5                                                                                                                         5         5

  100-102         2                                   2                                                                                                         2                     2                                       

  102-105         3           3                       3                                                                                                                                                                       

  105-116                                                                                                                                                       11                    11                  11                  

  116-119.98      3.98                                3.98                                          3.98                                                        3.98                  3.98                                    

  119.98-120.02   0.04                                0.04                                          0.04                                                        0.04                  0.04                                    

  120.02-126      5.98                                5.98                                          5.98                                                        5.98                  5.98                                    

  126-134         8                                   8                                             8                             8                                                                                           

  134-142                                             8                                   8                                                                                                                         8         8

  142-144                                                                                                     2         2                                                                                                     

  144-149                                                                                                                         5                                                                                           

  149-150         1                       1           1                                                                                                                                                                       

  150-151         1                       1           1                                                                                                         1                     1                                       

  151-156         5                       5           5                                                                                                                                                                       

  156-158         2                       2           2                                                                                                         2                                                             

  158-164         6                       6           6                                                                                                                                                                       

  164-168                                                                                                                                                       4                     4                   4                   

  168-170         2                                   2                                                                                                                                                                       

  170-174.5       4.5                                 4.5                                           4.5                                                                                                                       

  174.5-176.5     2                                   2                                             2                                                           2                     2                                       

  176.5-182       5.5                                 5.5                                           5.5                                                                                                                       

  182-185                                                                                                                                                       3                     3                   3                   

  185-190         5                                   5                                             5                                                                                                                         

  190-200                                             10                                  10                                                                                                                        10        10

  200-202         2                                   2                                                                                                         2                     2                                       

  202-217         15          15                      15                                                                                                                                                                      

  217-231                                                                                                                                                       14                    14                  14                  

  231-235         4                       4           4                                                                                                                                                                       

  235-238         3                       3           3                                                                                                         3                     3                                       

  238-241         3                       3           3                                                                                                                                                                       

  241-248                                                                                                                         7                                                                                           

  248-250                                                                                                     2         2                                                                                                     

  250-252                                                                                                                                                       2                     2                                       

  252-265                                             13                                  13                                                                                                                        13        13

  265-275         10          10                      10                                                                                                                                                  10                  

  **Totals**      **106.4**   **31**      **32.4**    **142.4**   **3**       **3**       **36**    **35**    **4.5**   **4.5**   **28**   **2**    **2**       **62**     **0.1**    **60**    **0.1**   **48**    **36**    **36**

                  **FS**      **FSS**     **FSS**     **MS**      **MSS**     **MSS**     **MSS**   **ISS**   **AS**    **ASS**   **RS**   **BS**   **BSS**     **EESS**   **EESS**   **SRS**   **SRS**   **RAS**   **RNS**   **RNSS**

                              **(s-E)**   **(E-s)**               **(s-E)**   **(E-s)**   **(?)**                                                   **(s-E)**   **(p)**    **(a)**    **(p)**   **(a)**                       
  --------------- ----------- ----------- ----------- ----------- ----------- ----------- --------- --------- --------- --------- -------- -------- ----------- ---------- ---------- --------- --------- --------- --------- ----------

**Proposed Allocations from 71 -- 275 GHz**

  ---------------- ----------- ----------- ----------- ----------- ----------- ----------- --------- ----------- ----------- --------- --------- -------- ---------- ----------- ----------- ---------- ---------- ---------- ---------- ------------ ---------- ----------
  **Band**         **FS**      **FSS**     **FSS**     **MS**      **MSS**     **MSS**     **MSS**   **ISS**     **ISS**     **AS**    **ASS**   **RS**   **BS**     **BSS**     **EESS**    **EESS**   **SRS**    **SRS**    **SRS**    **RAS**      **RNS**    **RNSS**

  **(GHz)**                    **(s-E)**   **(E-s)**               **(s-E)**   **(E-s)**   **(?)**               **(GSO)**                                           **(s-E)**   **(p)**     **(a)**    **(p)**    **(RA)**   **(a)**                            

  71-73            2           2                       2                                                                                                             2                                                                                           

  73-76            3           3                       3           3                                                                                                                                                                                             

  76-76.5                                                                                                                    0.5       0.5                                                                                                                       

  76.5-81.5                                                                                                                                      5                                                                                       5                       

  81.5-84.5        3                       3           3                       3                                                                                                                                                         3                       

  84.5-86          1.5                     1.5         1.5                                                                                                1.5                                                                            1.5                     

  86-92                                                                                                                                                                          6                      6                                6                       

  92-94            2                                   2                                                                                         2                                                                                       2                       

  94-94.1                                                                                                                                        0.1                                         0.1                              0.1                                

  94.1-95          0.9                                 0.9                                                                                       0.9                                                                                     0.9                     

  95-100           5                                   5                       5                                                                 5                                                                                       5            5          5

  100-102          2                                   2                                                                                                                         2                      2                                2                       

  102-105          3                                   3                                                                                                                                                                                 3                       

  105-109.5        4.5                                 4.5                                                                                                                                                         4.5                   4.5                     

  109.5-111.8                                                                                                                                                                    2.3                    2.3                              2.3                     

  111.8-114.25     2.45                                2.45                                                                                                                                                        2.45                  2.45                    

  114.25-116                                                                                                                                                                     1.75                   1.75                             1.75                    

  116-119.98                                                                                                     3.98                                                            3.98                   3.98                                                     

  119.98-120.02                                                                                                  0.04                                                            0.04                   0.04                                                     

  120.02-122.25                                                                                                  2.23                                                            2.23                   2.23                                                     

  122.25-126       3.75                                3.75                                          3.75                                                                                                                                3.75                    

  126-134                      8                                                           8         8                                                                                                                                                8          8

  134-136                                                                                                                    2         2                                                                                                                         

  136-141                                                                                                                                        5                                                                                       5                       

  141-148.5        7.5                                 7.5                                                                                       7.5                                                                                     7.5                     

  148.5-151.5                                                                                                                                                                    3                      3                                3                       

  151.5-153        1.5                                 1.5                                                                                       1.5                                                                                     1.5                     

  153-155.5        2.5                                 2.5                                                                                                                                                         2.5                   2.5                     

  155.5-158.5      3                                   3                                                                                                                         3                                 3                     3                       

  158.5-164        5.5         5.5                     5.5         5.5                                                                                                                                                                                           

  164-167                                                                                                                                                                        3                      3                                3                       

  167-168          1           1                       1                                             1                                                                                                                                                           

  168-174.8        6.8         6.8                     6.8                                           6.8                                                                                                                                                         

  174.8-176.5                                                                                                    1.7                                                             1.7                    1.7                                                      

  176.5-182                                                                                                      5.5                                                             5.5                    5.5                                                      

  182-185                                                                                                                                                                        3                      3                                                        

  185-190                                                                                                        5                                                               5                      5                                                        

  190-191.8                                                                                                                                                                      1.8                    1.8                                                      

  191.8-200        8.2                                 8.2                                 8.2       8.2                                                                                                                                              8.2        8.2

  200-202          2                                   2                                                                                                                         2                      2                                2                       

  202-209          7                                   7                                                                                                                         7                      7                                7                       

  209-217          8                       8           8                                                                                                                                                                                 8                       

  217-226          9                       9           9                                                                                                                                                                                 9                       

  226-231.5                                                                                                                                                                      5.5                    5.5                              5.5                     

  231.5-235        3.5         3.5                     3.5                                                                                                                                                                                                       

  235-238          3                                   3                                                                                                                         3                      3                                                        

  238-241          3           3                       3                                                                                                                                                                                                         

  241-248                                                                                                                                        7                                                                                       7                       

  248-250                                                                                                                    2         2                                                                                                 3                       

  250-252                                                                                                                                                                        2                      2                                2                       

  252-265          13                                  13                      13                                                                                                                                                        13           13         13

  265-275          10                      10          10                                                                                                                                                                                10                      

  **Totals**       **127.6**   **32.8**    **31.5**    **127.6**   **8.5**     **21**      **16**    **27.75**   **18.45**   **4.5**   **4.5**   **34**   **1.5**    **2**       **63.8**    **0.1**    **60.8**   **12.5**   **0.1**    **135.15**   **34.2**   **34.2**

  **- Before Tot** **106.4**   **32.4**    **31**      **142.4**   **3**       **3**       **36**    **35**      **0**       **4.5**   **4.5**   **28**   **2**      **2**       **62**      **0.1**    **60**     **0**      **0.1**    **48**       **36**     **36**

  **Difference**   **21.2**    **0.4**     **0.5**     **-14.8**   **5.5**     **18**      **-20**   **-7.25**   **18.45**   **0**     **0**     **6**    **-0.5**   **0**       **1.8**     **0**      **0.8**    **12.5**   **0**      **87.15**    **-1.8**   **-1.8**

                   **FS**      **FSS**     **FSS**     **MS**      **MSS**     **MSS**     **MSS**   **ISS**     **ISS**     **AS**    **ASS**   **RS**   **BS**     **BSS**     **EESS**    **EESS**   **SRS**    **SRS**    **SRS**    **RAS**      **RNS**    **RNSS**

                               **(s-E)**   **(E-s)**               **(s-E)**   **(E-s)**   **(?)**               **(GSO)**                                                       **(s-E)**   **(p)**    **(a)**    **(p)**    **(RA)**   **(a)**                 
  ---------------- ----------- ----------- ----------- ----------- ----------- ----------- --------- ----------- ----------- --------- --------- -------- ---------- ----------- ----------- ---------- ---------- ---------- ---------- ------------ ---------- ----------

# Proposals for Agenda Item 1.17

## to consider possible worldwide allocation for the earth exploration-satellite (passive) and space research (passive) service in the band 18.6 - 18.8 GHz, taking into account the results of the ITU-R studies (20March99)

**Background Information:** At present, the allocations for the Earth
exploration-satellite (passive) and the space research (passive)
services in the band 18.6 - 18.8 GHz are on a primary basis in Region 2,
but on a secondary basis in Regions 1 and 3. This allocation must be
upgraded to primary status if the long-term ability to obtain
environmental data with passive spaceborne sensors is to be preserved.
Compatibility between the passive sensors and the fixed and
fixed-satellite services requires adoption of constraints on the
parameters of the fixed and fixed-satellite systems that use the band. A
pfd limit of -95 dBW/m^2^ in a reference bandwidth of 200 MHz on
geostationary systems in the fixed-satellite service will enable passive
sensors to perform their mission if measurements are restricted to
portions of the sensor orbit where the sensor is moving away from the
equator while taking sensor data over land masses. Limiting the power
delivered to any antenna of a station in the fixed service measured
across the band 18.6 - 18.8 GHz band to not exceed 0 dBW along with an
antenna pattern complying with Recommendation ITU-R F.699-4 will enable
sharing with the fixed service.

**Proposal:**

+---------------------+---------------------+-------------------------+---+
| **GHz**             |                     |                         |   |
|                     |                     |                         |   |
| **18.6 -- 18.8**    |                     |                         |   |
+---------------------+---------------------+-------------------------+---+
| Allocation to       |                     |                         |   |
| Services            |                     |                         |   |
+---------------------+---------------------+-------------------------+---+
| Region 1            | Region 2            | Region 3                |   |
+---------------------+---------------------+-------------------------+---+

+---------------------+---------------------+-------------------------+
| **18.6 -- 18.8**    | **18.6 -- 18.8**    | **18.6 -- 18.8**        |
|                     |                     |                         |
| [EARTH              | EARTH EXPLORATION-\ | [EARTH EXPLORATION-\    |
| EXPLORATION-\       | SATELLITE (passive) | SATELLITE               |
| SATELLITE           |                     | (passive)]{.underline}  |
| (pa                 | FIXED               |                         |
| ssive)]{.underline} |                     | FIXED                   |
|                     | FIXED-SATELLITE\    |                         |
| FIXED               | (space-to-Earth)    | FIXED-SATELLITE\        |
|                     |                     | (space-to-Earth)        |
| FIXED-SATELLITE\    | **MOD** S5.523      |                         |
| (space-to-Earth)    |                     | **MOD** S5.523          |
|                     | MOBILE except\      |                         |
| **MOD** S5.523      | aeronautical mobile | MOBILE except\          |
|                     |                     | aeronautical mobile     |
| MOBILE except\      | SPACE RESEARCH\     |                         |
| aeronautical mobile | (passive)           | ~~Earth                 |
|                     |                     | Exploration-Satellite\  |
| ~~Earth             | **MOD** S5.522      | (passive)~~             |
| Exp                 |                     |                         |
| loration-Satellite\ |                     | Space Research          |
| (passive)~~         |                     | (passive)               |
|                     |                     |                         |
| Space Research      |                     | **MOD** S5.522          |
| (passive)           |                     |                         |
|                     |                     |                         |
| **MOD** S5.522      |                     |                         |
+---------------------+---------------------+-------------------------+

**Reasons**: To establish a common worldwide primary allocation to the
Earth exploration-satellite (passive) services to be used for
environmental measurements.

S5.522 [In the band 18.6 - 18.8 GHz, fixed and mobile service stations
shall be limited to a total power delivered to each antenna of 0
dBW.]{.underline}

**Reasons:** To enable passive sensors and the fixed service to operate
in the band without excessive interference to the sensors.

**S5.523** [In the band 18.6 - 18.8 GHz, the fixed-satellite service
shall be limited to a power flux density at the Earth's surface of -95
dBW/m^2^ in a reference bandwidth of 200 MHz for all angles of
arrival]{.underline}.

**Reasons:** To enable passive sensors and the fixed-satellite service
to operate in the band without excessive interference to the sensors.

# Proposals for Agenda Item 1.20

## to consider the issues related to the application of Nos. S9.8, S9.9 and S9.17 and the corresponding parts of Appendix S5 with respect to Appendices S30 and S30A, with a view to possible deletion of Articles 6 and 7 of Appendices S30 and S30A, also taking into consideration Recommendation 35 (WRC-95); (16April99)

**Backgound Information:** Annex 1 to Appendix **S30** of the Radio
Regulations specifies limits for determining whether a service is
affected by a proposed modification to the BSS Plan or when it is
necessary to seek the agreement of any other administration. Section 5
of Annex 1 specifies limits to the change in the PFD to protect the
terrestrial services of administrations in Regions 1 and 3 from
modifications to the Region 2 Plan.

Section 5c specifies the PFD limits for administrations in Region 1 east
of longitude 30°E. This PFD limit is very tight at low angles of
elevation. In order to meet this PFD limit the BSS spacecraft power must
be significantly lower in parts of Alaska compared to the continental
United States. As a result the provision of BSS service to Alaska, from
U.S. orbital assignments at 101W, 110W and 119W, requires larger BSS
receive dishes, in some cases as large as 1.8 m. This will also be the
case for Region 2 administrations that propose to modify their
assignments to provide service to the United States. The FCC requires
provision of service to Alaska when technically feasible.

A relaxation in the PFD limit in Section 5c of Annex 1 of Appendix
**S30**, as proposed below, would allow the use of 60 cm BSS receive
dishes in Alaska for BSS service from the 101W, 110W and 119W orbital
locations.

**Proposals:**

**APPENDIX S30**

ANNEX 1

**5.** **Limits to the change in the power flux-density to protect the
terrestrial services of administrations in Regions 1 and 3**[^9]**^6^**

*c)* in the frequency band 12.2-12.7 GHz for territories of
administrations in Region 117, east of longitude 30° E:

-- ~~134~~ [121.8]{.underline} dB(W/m2/5 MHz) for γ 
~~0~~[1.85]{.underline}°;

~~-- 134 + 4.6975 γ2 dB(W/m2/5 MHz) for 0° \< γ ≤ 0.8°;~~

-- 128.5 + 25 log γ dB(W/m2/5 MHz) for γ \> ~~0.8~~[1.85]{.underline}°;

**Reasons:** To allow the provision of BSS service to all of Alaska
using 60 cm receive dishes, from the U.S. BSS assignments at 101W, 110W
and 119W and from other Administration's orbital locations who plan to
provide BSS service to the United States.

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

[^1]: The Observatoire de Plateau de Bure interferometer consists of 3
    antennas of 15 m diameter.

[^2]: The USA MMA (MilliMeter Array) will consist of 40 antennas of 8-m
    diameter, on a ring configuration.\
    The diameter of the ring will be capable of variation, ranging from
    80 m to 10 km across.

[^3]: The Japanese LMSA (Large Southern Millimeter Array) will consist
    of 50 antennas of 10-m diameter.

[^4]: The VLA consists of 27 antennas of 25-m diameter, arranged in a Y
    pattern up to 36 km across.

[^5]: The VLBA consists of 10 antennas of 25 m diameter, distributed
    across the continental US, Hawaii and\
    the US Virgin Islands

[^6]: The Caltech Interferometer consists of 3 antennas of 10.4 m
    diameter

[^7]: The BIMA (Berkeley-Illinois-Maryland Array) currently consists of
    9 antennas of 6.1-m diameter. The\
    final configuration will consist of 11 antennas.

[^8]: ^7^ The Nobeyama site includes a 45 m diamater telescope, an
    interferometer that consists of 6 antennas of\
    10 m diameter, and a 60 cm diamter submillimeter telescoope.

[^9]: ^1\ 6^ See § 3.18 of Annex 5.