June 15, 1999

Mr. Roderick K. Porter

Acting Chief of the International Bureau

Federal Communications Commission

Washington, D.C. 20554

Dear Mr. Porter:

The National Telecommunications and Information Administration on behalf
of the Executive Branch Agencies, has approved two additional proposals
for WRC-2000. The first proposal is concerned with agenda item 1.6.1 and
contains the government draft proposal for the IMT-2000 system. The
second proposal is concerned with agenda item 1.16 and addresses the
re-allocation of frequency bands above 71 GHz. The proposed changes will
accommodate the requirements of the radio astronomy and
earth-exploration satellite (passive) services. These proposals are
being forwarded to your WRC-2000 Advisory Committee for review. Karl
Nebbia from my staff will contact Damon Ladson and reconcile any
differences.

> Sincerely,
>
> *Original Signed by Fred Wentland*
>
> William T. Hatch
>
> Acting Associate Administrator
>
> Office of Spectrum Management

Enclosures

**United States of America**

**(Draft) Proposals for the Work of the Conference**

# Proposals for Agenda Item 1.6.1

Review of spectrum and regulatory issues for advanced mobile application
in the context of IMT-2000, noting that there is an urgent need to
provide more spectrum for the terrestrial component of such applications
and that priority should be given to terrestrial mobile spectrum needs,
and adjustments to the table of frequency allocations as necessary.

Background Information: IMT-2000, also known as 3^rd^ generation
wireless, is intended to provide future public telecommunications
capable of broadband and multi-media applications. Although the
terrestrial component of IMT-2000 will be implemented on a national
basis, seamless global roaming and a high degree of commonality of
design and compatibility of services are considered essential attributes
of IMT-2000 systems.

Studies completed by ITU-R Task Group 8/1 forecast that, by 2 010, 160
MHz of spectrum may be needed for terrestrial IMT-2000 systems. This
requirement would be in addition to the 1 885-2 025/2 110-2 200 MHz
bands already identified for FPLMTS in **S5.388**, and in addition to
the spectrum already implemented by administrations for 1^st^ and 2^nd^
generation systems. In the U.S., the 1^st^ and 2^nd^ generation system
bands include the bands 824-849/869-894 MHz (used for cellular
telephones), 1 850-1 990 MHz (used for PCS), and bands at 800/900 MHz
used by Enhanced SMR operations. The 1^st^ and 2^nd^ generation system
bands are natural candidates for evolution to IMT-2000 services,
assuming there is an evolution path that facilitates implementation from
pre-IMT-2000 market technology.

The United States believes that a policy of flexibility for
administrations to identify bands for assignment to IMT-2000 systems,
which are essentially domestic radio systems, and to avoid seeking to
have these identified within the ITU Radio Regulations. There appears to
be sufficient mobile service allocations above and below 1 GHz to
accommodate the needs of IMT-2000 systems. Moreover, detailed planning
of bands could diminish flexibility of countries to accommodate domestic
needs as these arise, often at different time scales, taking account of
the different stages of development.

Because of the need to satisfy marketplace needs well before the time
frame provided in the original IMT-2000 footnote from WARC-92, the
United States and many other countries in Region 2 and Region 3, have
implemented Personal Communications Services within much of the same
band. IMT-2000 is most likely to be initially implemented in the PCS
band plan in these countries, rather than the one specified in the
WARC-92 footnote.

Administrations may implement IMT-2000 systems in any frequency band
allocated to the mobile service, therefore a specific provision in
Article **S5** of the Radio Regulations is not necessary and keeping in
mind the requirement to minimise the number of footnotes in the Radio
Regulations (Resolution **26**). It would be possible that both existing
bands (**S5.388**) and additional bands could be listed in a new
Resolution or Recommendation without any specific identification or
priority given to a system, as opposed to service in a footnote to the
Radio Regulations. Different dates of introduction for IMT-2000 bands
can be provided in a new resolution. This avoids implying an allocation
or a higher regulatory status for the IMT-2000 system, over other
systems in the mobile services and/or other radio services, by
disassociating any spectrum identification for IMT-2000 from the table
of frequency allocations.

The frequency bands 1525-1559 MHz and 1626.5-1660.5 MHz have been
identified by TG8/1 as candidate bands for the satellite component of
IMT-2000. There are a number of issues related to agenda item 1.10 and
delineated in Resolution **218** for these bands that need to be
resolved regarding AMS(R)S. If the satellite component of IMT-2000
utilizes these bands, account must be taken of the priority of AMS(R)S
communications over all other communications as described in ITU RR
**S5.357A** and **S5.362A**.

**Proposal:**

**Section IV -- Table of Frequency Allocations**

1 710-2 025 MHz

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

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

+-----------------------------------------------------------------------+
| **1 710-1 930** FIXED                                                 |
|                                                                       |
| MOBILE S5.380                                                         |
|                                                                       |
| S5.149 S5.341 S5.385 S5.386 S5.387 ~~S5.388~~                         |
+-----------------------------------------------------------------------+

+---------------------+--------------------------+--------------------+
| 1 930-1 970         | 1 930-1 970              | 1 930-1 970        |
|                     |                          |                    |
| FIXED               | FIXED                    | FIXED              |
|                     |                          |                    |
| MOBILE              | MOBILE                   | MOBILE             |
|                     |                          |                    |
|                     | Mobile-satellite         |                    |
|                     | (Earth-to-space)         |                    |
+---------------------+--------------------------+--------------------+
| ~~S5.388~~          | ~~S5.388~~               | ~~S5.388~~         |
+---------------------+--------------------------+--------------------+

+-----------------------------------------------------------------------+
| **1 970-1 980** FIXED                                                 |
|                                                                       |
| MOBILE                                                                |
|                                                                       |
| ~~S5.388~~                                                            |
+-----------------------------------------------------------------------+

+-----------------------------------------------------------------------+
| **1 980-2 010** FIXED                                                 |
|                                                                       |
| MOBILE                                                                |
|                                                                       |
| MOBILE-SATELLITE (Earth-to-space)                                     |
|                                                                       |
| ~~S5.388~~ S5.389A S5.389B S5.389F                                    |
+-----------------------------------------------------------------------+

+---------------------+--------------------------+--------------------+
| **2 010-2 025**     | **2 010-2 025**          | **2 010-2 025**    |
|                     |                          |                    |
| FIXED               | FIXED                    | FIXED              |
|                     |                          |                    |
| MOBILE              | MOBILE                   | MOBILE             |
|                     |                          |                    |
|                     | MOBILE-SATELLITE\        |                    |
|                     | (Earth-to-space)         |                    |
+---------------------+--------------------------+--------------------+
| ~~\                 | ~~S5.388~~ S5.389C       | ~~S5.388~~         |
| S5.388~~            | S5.389D S5.389E S5.390   |                    |
+---------------------+--------------------------+--------------------+

2 110-2 200 MHz

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

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

+-----------------------------------------------------------------------+
| **2 110-2 120** FIXED                                                 |
|                                                                       |
| MOBILE                                                                |
|                                                                       |
| SPACE RESEARCH (deep space) (Earth-to-space)                          |
|                                                                       |
| ~~S5.388~~                                                            |
+-----------------------------------------------------------------------+

+---------------------+--------------------------+--------------------+
| **2 120-2 160**     | **2 120-2 160**          | **2 120-2 160**    |
|                     |                          |                    |
| FIXED               | FIXED                    | FIXED              |
|                     |                          |                    |
| MOBILE              | MOBILE                   | MOBILE             |
|                     |                          |                    |
|                     | Mobile-satellite         |                    |
|                     | (space-to-Earth)         |                    |
+---------------------+--------------------------+--------------------+
| ~~S5.388~~          | ~~S5.388~~               | ~~S5.388~~         |
+---------------------+--------------------------+--------------------+

+---------------------+--------------------------+--------------------+
| **2 160-2 170**     | **2 160-2 170**          | **2 160-2 170**    |
|                     |                          |                    |
| FIXED               | FIXED                    | FIXED              |
|                     |                          |                    |
| MOBILE              | MOBILE                   | MOBILE             |
|                     |                          |                    |
|                     | MOBILE-SATELLITE\        |                    |
|                     | (space-to-Earth)         |                    |
+---------------------+--------------------------+--------------------+
| ~~S5.388~~ S5.392A  | ~~S5.388~~ S5.389C       | ~~S5.388~~         |
|                     | S5.389D S5.389E S5.390   |                    |
+---------------------+--------------------------+--------------------+

+-----------------------------------------------------------------------+
| **2 170-2 200** FIXED                                                 |
|                                                                       |
| MOBILE                                                                |
|                                                                       |
| MOBILE-SATELLITE (space-to-Earth)                                     |
|                                                                       |
| ~~S5.388~~ S5.389A S5.389F S5.392A                                    |
+-----------------------------------------------------------------------+

**S5.388**

**Reasons:** Detailed WRC-based planning can diminish the flexibility of
countries to manage essentially short-range domestic radio, and has
proven to be disadvantageous or irrelevant in certain instances.
Footnotes like **S5.388** do not constitute an allocation and lack
definition and regulatory purpose.

**~~RESOLUTION 212 (Rev.WRC-97)~~**

~~Implementation of International Mobile\
Telecommunications-2000 (IMT-2000)~~[^1]

RECOMMENDATION XXX (WRC-2000)

Global Mobile Telecommunication Systems including International Mobile
Telecommunications-2000 (IMT-2000)

The World Radiocommunication Conference (Istanbul, 2000),

*considering*

a\) that IMT-2000 is the ITU vision of global mobile access in the
21^st^ century and is scheduled to start service around the year 2000;

b\) that IMT-2000 is an advanced mobile communications concept intended
to provide telecommunications services on a worldwide scale regardless
of location, network or terminal used;

c\) that through integration of terrestrial mobile and mobile satellite
systems, different types of wireless access will be provided globally,
including services available through the fixed telecommunications
networks and those specific to mobile users;

d\) that the bands 1 885-2 025 MHz and 2 110-2 200 MHz are intended for
use, on a worldwide basis, by administrations wishing to implement
International Mobile Telecommunications-2000 (IMT-2000) and that such
use does not preclude the use of these bands by other services to which
they are allocated (WRC-97);

e\) that ITU-R Report M.\[IMT.SPEC\] Spectrum Requirements for IMT-2000,
forecasted a need for 160 MHz of spectrum on a global basis for the
terrestrial component and 2x67 MHz for the satellite component in the
year 2010, in addition to the frequency bands listed in considering d);

*considering further*

*a)* that ITU-R has not completed its studies regarding duplexing
methods, modulation techniques, channeling arrangements, signaling or
communication protocols;

*b)* that no worldwide intersystem numbering plan currently exists that
would facilitate worldwide roaming,

noting

*a)* that Administrations may implement IMT-2000 systems in any
frequency band allocated to the mobile service;

*b)* that IMT-2000, as well as other global terrestrial mobile systems
do not have priority or a higher regulatory status over other services
in the mobile service or other radio services;

*c)* that the implementation of the terrestrial component of IMT-2000,
in some countries, in the bands 1 885-2 025 MHz and 2 110-2 200 MHz is
expected to commence around the year 2000, subject to market and
technical considerations;

*d)* that the availability of the satellite component of IMT-2000 in the
bands 1 980-2 010 MHz and 2 170-2 200 MHz simultaneously with the
terrestrial component of IMT-2000 in the bands 1 885-2 025 MHz and
2 110-2 200 MHz would improve the overall implementation and
availability of IMT-2000 to both developed and developing countries,

invites administrations

to give due consideration to the accommodation of other services
currently operating in these bands when implementing IMT-2000,

invites ITU-T

*a)* to complete its studies of signaling and communication protocols;

*b)* to develop a common worldwide intersystem numbering plan and
associated network capabilities that will facilitate worldwide roaming,

recommends

*a)* that administrations planning to implement terrestrial IMT-2000
systems on a global basis, consider the use of the bands: 1 850-1 885
MHz, 1 885-2 025 MHz/2 110-2 200 MHz, 2 520-2 670 MHz;

b\) that administrations planning to implement satellite IMT-2000
systems on a global basis, consider the use of the bands 1 525-1 559/1
626.5-1 660.5 MHz, 1 610-1 626.5/2 483.5-2 500 MHz, and
1 980-2 010/2 170-2 200 MHz;

c\) that administrations planning to implement additional terrestrial
IMT-2000 systems on a regional/national basis, consider the use of the
band 800/900 MHz (Region 2);

*d)* that administrations planning to implement additional satellite
IMT-2000 systems on a national/regional basis, consider the use of the
bands 2 520-2 535/2 655-2 670 MHz (all Regions), 2 500-2 520/2 670-2 690
MHz (RR **S5.414** and **S5.419**) and 2 010-2 025/2 160-2 170 MHz
(Region 2);

*e)* that administrations study and consider the possible use of the
regional/national frequency bands listed in recommends c) and d) in the
longer term, with a view to harmonizing spectrum on a worldwide basis
for IMT-2000 and other global telecommunication systems;

*f)* that administrations deploying IMT-2000 systems should use the
relevant international technical characteristics, as identified by ITU-R
and ITU-T Recommendations.

**Reasons:** IMT-2000 systems, as well as future generation mobile
systems can be implemented on a worldwide and regional basis through the
use of a WRC Recommendation. It is not necessary to have regulatory
provisions in the radio regulations such as footnotes and resolutions.

**United States of America**

**(Draft) Proposals for the Work of the Conference**

# 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

**Background Information:** The following proposals modify many of the
allocation tables above 71 GHz to accommodate the requirements of the
radio astronomy and earth-exploration satellite (passive) services.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **71 -- 74**     |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **71 -- 74**     |                  |                  |
|             | FIXED            |                  |                  |
| **MOD**     |                  |                  |                  |
|             | > ~              |                  |                  |
|             | ~FIXED-SATELLITE |                  |                  |
|             | > (E             |                  |                  |
|             | arth-to-space)~~ |                  |                  |
|             |                  |                  |                  |
|             | [FIXED-SATELLITE |                  |                  |
|             | (space-to-Ear    |                  |                  |
|             | th)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | MOBILE           |                  |                  |
|             |                  |                  |                  |
|             | ~~               |                  |                  |
|             | MOBILE-SATELLITE |                  |                  |
|             | (s               |                  |                  |
|             | pace-to-Earth)~~ |                  |                  |
|             |                  |                  |                  |
|             | [                |                  |                  |
|             | MOBILE-SATELLITE |                  |                  |
|             | (Earth-to-spa    |                  |                  |
|             | ce)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~S5.149         |                  |                  |
|             | S5.556~~         |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** MSS and FSS uplinks and downlinks in 71-74 GHz and 81-84
GHz bands have been interchanged to avoid satellite downlinks in bands
needed by RAS. Atmospheric absorption is only slightly higher in 71-74
GHz band than in 81-84 GHz band. The RAS footnotes **S5.149** and
**S5.556** have been deleted in favor of allocations above 76 GHz. The
reference to the 72.77-72.91 GHz band in footnotes **S5.149** and
**S5.556** has been deleted.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **74 -- 76**     |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **74 -- 75.5**   |                  |                  |
|             | [BRO             |                  |                  |
| **MOD**     | ADCASTING-SATELL |                  |                  |
|             | ITE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | FIXED            |                  |                  |
|             |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~FIXED-SATELLITE |                  |                  |
|             | (E               |                  |                  |
|             | arth-to-space)~~ |                  |                  |
|             |                  |                  |                  |
|             | [FIXED-SATELLITE |                  |                  |
|             | (space-to-Ear    |                  |                  |
|             | th)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | MOBILE           |                  |                  |
|             |                  |                  |                  |
|             | Space Research   |                  |                  |
|             | (space-to-Earth) |                  |                  |
|             |                  |                  |                  |
|             | > [**MOD**       |                  |                  |
|             | > S5.561 **ADD** |                  |                  |
|             | > S5.            |                  |                  |
|             | EEE]{.underline} |                  |                  |
+-------------+------------------+------------------+------------------+
| USA/ /      | **75.5 -- 76**   |                  |                  |
|             | ~~AMATEUR~~      |                  |                  |
| **MOD**     |                  |                  |                  |
|             | ~~AMA            |                  |                  |
|             | TEUR-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | [BRO             |                  |                  |
|             | ADCASTING-SATELL |                  |                  |
|             | ITE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [FI              |                  |                  |
|             | XED]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [FIXED-SATELLITE |                  |                  |
|             | (space-to-Ear    |                  |                  |
|             | th)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [MOB             |                  |                  |
|             | ILE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | Space Research   |                  |                  |
|             | (space-to-Earth) |                  |                  |
|             |                  |                  |                  |
|             | [**MOD** S5.561  |                  |                  |
|             | **ADD**          |                  |                  |
|             | S5.              |                  |                  |
|             | EEE]{.underline} |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** BSS, which is currently allocated to the 84-86 GHz band,
has been relocated to this band to protect RAS above 76 GHz. Atmospheric
absorption is only slightly higher in 74-76 GHz band than in 84-86 GHz
band. Amateur and Amateur-Satellite allocations have been shifted to
80.5-81 GHz. The new footnote **S5.EEE** protects existing Amateur and
Amateur-Satellite operations in the 75.5-76 GHz band until the year
200\[X\]. The FSS (Earth-to-space) allocation has been moved to 84-86
GHz band. The proposed allocations in the 74-84 GHz range preserve a
contiguous 10 GHz space research downlink (secondary), which is required
for space VLBI purposes. The footnote **S5.561** has been modified to
recognize the change in BSS allocation.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **76 -- 81**     |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **               |                  |                  |
|             | 76 -- ~~81~~[77. |                  |                  |
| **MOD**     | 5]{.underline}** |                  |                  |
|             | [RADIO ASTRONOMY |                  |                  |
|             | **ADD            |                  |                  |
|             | S5.RA            |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | RADIOLOCATION    |                  |                  |
|             |                  |                  |                  |
|             | > Amateur        |                  |                  |
|             | >                |                  |                  |
|             | > A              |                  |                  |
|             | mateur-Satellite |                  |                  |
|             |                  |                  |                  |
|             | Space Research   |                  |                  |
|             | (space-to-Earth) |                  |                  |
|             |                  |                  |                  |
|             | ~~S5.560~~       |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 149]{.underline} |                  |                  |
+-------------+------------------+------------------+------------------+
| USA/ /      | **[77.5 -- 7     |                  |                  |
|             | 8]{.underline}** |                  |                  |
| MOD         | [AMAT            |                  |                  |
|             | EUR]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | > [AMATEUR       |                  |                  |
|             | > SATELL         |                  |                  |
|             | ITE]{.underline} |                  |                  |
|             | >                |                  |                  |
|             | > ~              |                  |                  |
|             | ~RADIOLOCATION~~ |                  |                  |
|             | >                |                  |                  |
|             | > ~~Amateur~~    |                  |                  |
|             | >                |                  |                  |
|             | > ~~Ama          |                  |                  |
|             | teur-Satellite~~ |                  |                  |
|             |                  |                  |                  |
|             | [Radio           |                  |                  |
|             | Astron           |                  |                  |
|             | omy]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | Space Research   |                  |                  |
|             | (space-to-Earth) |                  |                  |
|             |                  |                  |                  |
|             | ~~S5.560~~       |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 149]{.underline} |                  |                  |
+-------------+------------------+------------------+------------------+
| USA/ /      | **[78 ]{.u       |                  |                  |
|             | nderline}-- 81** |                  |                  |
| **MOD**     | [RADIO ASTRONOMY |                  |                  |
|             | **S5.RA          |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | RADIOLOCATION    |                  |                  |
|             |                  |                  |                  |
|             | > Amateur        |                  |                  |
|             | >                |                  |                  |
|             | > A              |                  |                  |
|             | mateur-Satellite |                  |                  |
|             |                  |                  |                  |
|             | Space Research   |                  |                  |
|             | (space-to-Earth) |                  |                  |
|             |                  |                  |                  |
|             | S5.560 [**MOD**  |                  |                  |
|             | S5.              |                  |                  |
|             | 149]{.underline} |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** The existing 76 - 81 GHz band has been divided into three
sub-bands. The addition of a radio astronomy allocation, footnote
**S5.RAS,** and **RES RAS** satisfies the requirements for radio
astronomy spectral line and wide band continuum observations from remote
locations world-wide in both the 76 - 77.5 GHz and 78 -- 81 GHz bands.
Radio astronomy is added as a secondary allocation in the 77.5 -- 78 GHz
band. Amateur and amateur-satellite services are shifted by 0.5 GHz, to
accommodate BS, FSS and MSS downlinks at the lower portion of
atmospheric window, and to avoid sharing with vehicular radars, which
some Administrations have authorized to operate in the 76-77 GHz band.
There is no change in sharing between services, except for introduction
of RAS allocation in the upper and lower sub-bands. The bands has been
added to those listed under **S5.149**. The footnote **S5.560** is
deleted from the 76 - 77.5 and 77 - 78 GHz sub-bands, where it doesn\'t
apply.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **81 -- 84**     |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **81 -- 84**     |                  |                  |
|             | FIXED            |                  |                  |
| **MOD**     |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~FIXED-SATELLITE |                  |                  |
|             | (s               |                  |                  |
|             | pace-to-Earth)~~ |                  |                  |
|             |                  |                  |                  |
|             | >                |                  |                  |
|             | [FIXED-SATELLITE |                  |                  |
|             | > (Earth-to-spa  |                  |                  |
|             | ce)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | MOBILE           |                  |                  |
|             |                  |                  |                  |
|             | ~~               |                  |                  |
|             | MOBILE-SATELLITE |                  |                  |
|             | (s               |                  |                  |
|             | pace-to-Earth)~~ |                  |                  |
|             |                  |                  |                  |
|             | > [              |                  |                  |
|             | MOBILE-SATELLITE |                  |                  |
|             | > (Earth-to-spa  |                  |                  |
|             | ce)]{.underline} |                  |                  |
|             | >                |                  |                  |
|             | > [RADIO         |                  |                  |
|             | > ASTRONOMY      |                  |                  |
|             | > **ADD          |                  |                  |
|             | > S5.RA          |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | Space research   |                  |                  |
|             | (space-to-Earth) |                  |                  |
|             |                  |                  |                  |
|             | [**MOD** S5.149  |                  |                  |
|             | S5.              |                  |                  |
|             | DDD]{.underline} |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons: The directions of MSS and FSS downlinks have been reversed to
allow radio astronomy observations. The uplinks are paired with the
71-74 GHz downlinks. The addition of a radio astronomy allocation,
footnote S5.RAS, and RES RAS satisfies the requirements for radio
astronomy spectral line and wide band continuum observations from remote
locations worldwide. The footnote S5.DDD has been added to maintain the
current amount of secondary amateur and amateur-satellite spectrum. This
band has been added to footnote S5.149.**

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **84 -- 86**     |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **84 -- 86**     |                  |                  |
|             | BROADCASTING     |                  |                  |
| **MOD**     |                  |                  |                  |
|             | ~~BROADCAS       |                  |                  |
|             | TING-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | FIXED            |                  |                  |
|             |                  |                  |                  |
|             | [FIXED-SATELLITE |                  |                  |
|             | (Earth-to-spa    |                  |                  |
|             | ce)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | MOBILE           |                  |                  |
|             |                  |                  |                  |
|             | [RADIO ASTRONOMY |                  |                  |
|             | **ADD**          |                  |                  |
|             | **S5.RA          |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 149]{.underline} |                  |                  |
|             | ~~S5.561~~       |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** The Broadcasting Satellite allocation has been relocated to
74-76 GHz band. The direction of satellite downlinks has been reversed
to allow radio astronomy observations. The uplink has been paired with
74-76 GHz downlink. The addition of a radio astronomy allocation,
footnote **S5.RAS**, and **RES RAS** satisfies the requirements for
radio astronomy spectral line and wide band continuum observations from
remote locations worldwide. This band has been added to footnote
**S5.149**. The **S5.561** footnote is no longer relevant to this band;
appropriately modified it now applies to the 74-75.5 GHz and 75.5 - 76
GHz bands.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **86 -- 92**     |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **86 -- 92**     |                  |                  |
|             | EARTH            |                  |                  |
| **[NOC]{.u  | EXPLO            |                  |                  |
| nderline}** | RATION-SATELLITE |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | RADIO ASTRONOMY  |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | S5.340           |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** This band is of crucial importance to the RAS, SR (passive)
and EES (passive) services; it is the window for the band around 118.75
GHz. No active services are acceptable in this band and no change in
current allocations is feasible.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **92 -- 94**     |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **92 -- 94**     |                  |                  |
|             | FIXED            |                  |                  |
| **MOD**     |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~FIXED-SATELLITE |                  |                  |
|             | (E               |                  |                  |
|             | arth-to-space)~~ |                  |                  |
|             |                  |                  |                  |
|             | MOBILE           |                  |                  |
|             |                  |                  |                  |
|             | [RADIO ASTRONOMY |                  |                  |
|             | **ADD            |                  |                  |
|             | S5.RA            |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | RADIOLOCATION    |                  |                  |
|             |                  |                  |                  |
|             | **MOD** S5.149   |                  |                  |
|             | ~~S5.556~~       |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** The addition of a radio astronomy allocation, footnote
**S5.RAS**, and **RES RAS** satisfies the requirements for radio
astronomy spectral line and wide band continuum observations from remote
locations world-wide. Previously, radio astronomy interest was
recognised via footnote **S5.556**. The FSS (Earth-to-space) allocation,
no longer needed to balance 102-105 GHz allocation, has been relocated
to 71-76 GHz band. This band has been added to those listed under
**S5.149**. Footnote **S5.556** has been deleted from this band, as it
is no longer necessary.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **94 -- 94.1**   |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **94 -- 94.1**   |                  |                  |
|             | EARTH            |                  |                  |
| **MOD**     | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (active)         |                  |                  |
|             |                  |                  |                  |
|             | RADIOLOCATION    |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (active)         |                  |                  |
|             |                  |                  |                  |
|             | [Radio           |                  |                  |
|             | Astron           |                  |                  |
|             | omy]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | S5.562           |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** The radio astronomy service is secondary to the active
services. No change in sharing between services is proposed, except for
introduction of the RAS allocation in this band.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **94.1 -- 95**   |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **94.1 -- 95**   |                  |                  |
|             | FIXED            |                  |                  |
| **MOD**     |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~FIXED-SATELLITE |                  |                  |
|             | (E               |                  |                  |
|             | arth-to-space)~~ |                  |                  |
|             |                  |                  |                  |
|             | MOBILE           |                  |                  |
|             |                  |                  |                  |
|             | [RADIO ASTRONOMY |                  |                  |
|             | **ADD            |                  |                  |
|             | S5.RA            |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | RADIOLOCATION    |                  |                  |
|             |                  |                  |                  |
|             | **MOD** S5.149   |                  |                  |
|             | ~~S5.556~~       |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** The addition of a radio astronomy allocation, footnote
**S5.RAS**, and **RES RAS** satisfies the requirements for radio
astronomy spectral line and wide band continuum observations from remote
locations world-wide. No change in sharing between existing services,
except for introduction of RAS allocation in band. The FSS
(Earth-to-space) allocation, no longer needed to balance 102-105 GHz,
has been relocated to 71-76 GHz band. The footnote **S5.556** is
deleted, as it is not relevant to this band (should have been suppressed
consequential to WRC-97 actions). This band has been added to those
listed under **S5.149**.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **95 -- 100**    |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **95 -- 100**    |                  |                  |
|             | [FIXED **MOD**   |                  |                  |
| **MOD**     | S5.              |                  |                  |
|             | 553]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | > MOBILE **MOD** |                  |                  |
|             | > S5.553         |                  |                  |
|             |                  |                  |                  |
|             | ~~MO             |                  |                  |
|             | BILE-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | [RADIO ASTRONOMY |                  |                  |
|             | **ADD            |                  |                  |
|             | S5.RA            |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [RADIOLOCAT      |                  |                  |
|             | ION]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | RADIONAVIGATION  |                  |                  |
|             |                  |                  |                  |
|             | RADIONAVI        |                  |                  |
|             | GATION-SATELLITE |                  |                  |
|             |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~Radiolocation~~ |                  |                  |
|             |                  |                  |                  |
|             | **MOD** S5.149   |                  |                  |
|             | S5.554           |                  |                  |
|             | ~~S5.555~~       |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** The addition of a radio astronomy allocation, footnote
**S5.RAS**, and **RES RAS** satisfies the requirements for radio
astronomy spectral line and wide band continuum observations from remote
locations world-wide. Radiolocation has been upgraded to primary,
consequential to the addition of radio astronomy as a primary service.
The mobile satellite service is deleted, as it cannot share with the
Radiolocation service. This band has been added to those listed under
**S5.149**. Footnote **S5.555**, which allocates the 97.88-98.08 GHz
sub-band to the RAS on a primary basis has been deleted, and the band
has been deleted from footnote **S5.555**. The footnote **S5.553** has
been modified to include stations in the fixed service.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **100 -- 102**   |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **100 -- 102**   |                  |                  |
|             | EARTH            |                  |                  |
| **MOD**     | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | FIXED            |                  |                  |
|             |                  |                  |                  |
|             | MOBILE           |                  |                  |
|             |                  |                  |                  |
|             | > [RADIO         |                  |                  |
|             | > ASTRONOMY      |                  |                  |
|             | > **ADD          |                  |                  |
|             | > S5.RA          |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 149]{.underline} |                  |                  |
|             | S5.341           |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** The addition of a radio astronomy allocation, footnote
**S5.RAS**, and **RES RAS** satisfies the requirements for radio
astronomy spectral line and wide band continuum observations from remote
locations world-wide. There is no change in sharing between services,
except for introduction of RAS allocation in band. This band is used by
EES (passive) for limb sounding of atmospheric constituents (NO line at
100.49 GHz). This band added to those listed under **S5.149**.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **102 -- 105**   |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **102 -- 105**   |                  |                  |
|             | FIXED            |                  |                  |
| **MOD**     |                  |                  |                  |
|             | > ~              |                  |                  |
|             | ~FIXED-SATELLITE |                  |                  |
|             | > (s             |                  |                  |
|             | pace-to-Earth)~~ |                  |                  |
|             | >                |                  |                  |
|             | > MOBILE         |                  |                  |
|             | >                |                  |                  |
|             | > [RADIO         |                  |                  |
|             | > ASTRONOMY      |                  |                  |
|             | > **ADD          |                  |                  |
|             | > S5.RA          |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 149]{.underline} |                  |                  |
|             | S5.341           |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons**: The FSS allocation has been moved to 74-76 GHz band, to
eliminate downlinks in the middle of the atmospheric window needed for
radio astronomy observations. Atmospheric absorption in these two
windows is similar. The addition of a radio astronomy allocation,
footnote **S5.RAS**, and **RES RAS** satisfies the requirements for
radio astronomy spectral line and wide band continuum observations from
remote locations world-wide. This band has been added to those listed
under **S5.149.**

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **105 -- 109.5** |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **105            |                  |                  |
|             |  -- ~~116~~[109. |                  |                  |
| **MOD**     | 5]{.underline}** |                  |                  |
|             | ~~EARTH          |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)~~      |                  |                  |
|             |                  |                  |                  |
|             | > [FI            |                  |                  |
|             | XED]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [MOB             |                  |                  |
|             | ILE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | RADIO ASTRONOMY  |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (passive)        |                  |                  |
|             | [5.              |                  |                  |
|             | CCC]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 149]{.underline} |                  |                  |
|             | ~~S5.340~~       |                  |                  |
|             | S5.341           |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** The 105-116 GHz range has been divided into 4 sub-bands to
make additional spectrum available for other services and to adjust
other passive allocations to areas of the spectrum that are more
appropriate to meet scientific needs. Passive sensors have no known use
for, and do not need the band 105-109.5 GHz, so they have been deleted.
Fixed and mobile services have been added, relocated from 116 - 122.5
GHz band, where deletion of these services is needed to protect
essential passive sensor operations. Since this band is no longer
passive in nature, footnote **S5.340** should be deleted. This band is
added to those included under S5.149, to reflect the need to protect
radio astronomy in a band that is no longer passive. Footnote **S5.CCC**
is added to limit Space Research (passive) allocation to space-based
radio astronomy in this band.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **109.5 -- 111.8 |                  |                  |
|             | GHz**            |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **[109.5 -- 111. |                  |                  |
|             | 8]{.underline}** |                  |                  |
| **MOD**     | EARTH            |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | RADIO ASTRONOMY  |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | S5.340 S5.341    |                  |                  |
+-------------+------------------+------------------+------------------+

**Reason:** It is essential to maintain this passive band. The **MOD**
refers to the band limits only; no change **[(NOC)]{.underline}** is
proposed to the allocations within this sub-band. This band contains an
ozone line at 110.8 GHz, which is used for microwave limb sounding. The
entire band is of vital importance to radio astronomy for observations
of the CO lines at 109.8 and 110.2 GHz, and continuum observations.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **111.8 --       |                  |                  |
|             | 114.25 GHz**     |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | *                |                  |                  |
|             | *[111.8 -- 114.2 |                  |                  |
| **MOD**     | 5]{.underline}** |                  |                  |
|             | ~~EARTH          |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)~~      |                  |                  |
|             |                  |                  |                  |
|             | [FI              |                  |                  |
|             | XED]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [MOB             |                  |                  |
|             | ILE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | RADIO ASTRONOMY  |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (passive)        |                  |                  |
|             | [S5.             |                  |                  |
|             | CCC]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 149]{.underline} |                  |                  |
|             | ~~S5.340~~       |                  |                  |
|             | S5.341           |                  |                  |
+-------------+------------------+------------------+------------------+

**Reason:** Passive sensors do not need the band 111.8-114.25 GHz and
have been deleted. Fixed and mobile services are added to this band,
they were relocated from the 116 - 122.5 GHz band where deletion of
these services is needed to protect essential passive sensor operations.
This band is added to those included under **S5.149** to reflect the
need to protect radio astronomy in a band that is no longer passive. The
addition of the new footnote **S5.CCC** limits the Space Research
(passive) allocation to space-based radio astronomy in this band.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **111.8 --       |                  |                  |
|             | 114.25 GHz**     |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **[114.25 ]{.un  |                  |                  |
|             | derline}-- 116** |                  |                  |
| **MOD**     | EARTH            |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | RADIO ASTRONOMY  |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | S5.340 S5.341    |                  |                  |
+-------------+------------------+------------------+------------------+

**Reason:** It is essential to maintain this passive band. The **MOD**
refers to the band limits only; no change **[(NOC)]{.underline}** is
proposed to the allocations within this sub-band. The band 114.25-116
GHz is of vital importance to radio astronomy for observations of the
115.3 GHz CO line and is the first portion of the 114.25-122.25 GHz
oxygen absorption band which is required for remote sensing, with a peak
at 118.75 GHz.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | *                |                  |                  |
|             | *116 -- 122.25** |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | *                |                  |                  |
|             | *116 -- 119.98** |                  |                  |
| **MOD**     | EARTH            |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | ~~FIXED~~        |                  |                  |
|             |                  |                  |                  |
|             | INTER-SATELLITE  |                  |                  |
|             | [**ADD**         |                  |                  |
|             | S5.              |                  |                  |
|             | XXX]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~MOBILE         |                  |                  |
|             | S5.558~~         |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | ~~S5.138~~       |                  |                  |
|             | S5.341           |                  |                  |
+-------------+------------------+------------------+------------------+
| USA/ /      | **11             |                  |                  |
|             | 9.98 -- 120.02** |                  |                  |
| **MOD**     | EARTH            |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | ~~FIXED~~        |                  |                  |
|             |                  |                  |                  |
|             | INTER-SATELLITE  |                  |                  |
|             | [**ADD**         |                  |                  |
|             | S5.              |                  |                  |
|             | XXX]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~MOBILE         |                  |                  |
|             | S5.558~~         |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | ~~Amateur~~      |                  |                  |
|             |                  |                  |                  |
|             | S5.341           |                  |                  |
+-------------+------------------+------------------+------------------+
| USA/ /      | **120.02         |                  |                  |
|             |  -- 1~~26~~[22.2 |                  |                  |
| **MOD**     | 5]{.underline}** |                  |                  |
|             | EARTH            |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | ~~FIXED~~        |                  |                  |
|             |                  |                  |                  |
|             | INTER-SATELLITE  |                  |                  |
|             | [**ADD**         |                  |                  |
|             | S5.              |                  |                  |
|             | XXX]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~MOBILE         |                  |                  |
|             | S5.558~~         |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | S5.138           |                  |                  |
|             | ~~S5.341~~       |                  |                  |
+-------------+------------------+------------------+------------------+

**Reason:** This band is of crucial importance for passive sensing, as
it is comprised the majority of the necessary 114.25-122.25 GHz band,
the oxygen absorption band, with its peak at 118.75 GHz. The fixed and
mobile services have been moved down to 105 - 109.5 GHz and 111.8-114.25
GHz, as sharing with passive sensors would severely restrict these
services in this portion of the spectrum. The inter-satellite service
needs to be limited by footnote **S5.XXX** to links between GSO
satellites only, with pfd limits as specified in sharing studies in
order to share the band 116-122.25 GHz with passive sensors. The
secondary allocation to amateur services in the band 119.98-120.02 GHz
is also moved to 122.5-123 GHz band to avoid interference to passive
sensors.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **122.25 --      |                  |                  |
|             | 123**            |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **[122.25 -- 12  |                  |                  |
|             | 3]{.underline}** |                  |                  |
| **MOD**     | ~~EARTH          |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)~~      |                  |                  |
|             |                  |                  |                  |
|             | FIXED            |                  |                  |
|             |                  |                  |                  |
|             | INTER-SATELLITE  |                  |                  |
|             |                  |                  |                  |
|             | > MOBILE **MOD** |                  |                  |
|             | > S5.558         |                  |                  |
|             | >                |                  |                  |
|             | > ~~SPACE        |                  |                  |
|             | > RESEARCH       |                  |                  |
|             | > (passive)~~    |                  |                  |
|             |                  |                  |                  |
|             | [Amat            |                  |                  |
|             | eur]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | S5.138           |                  |                  |
|             | ~~S5.341~~       |                  |                  |
+-------------+------------------+------------------+------------------+

**Reason:** The passive sensor allocations have been deleted from this
band, as they are not needed for remote sensing applications. A
secondary amateur service allocation has been added to compensate for
the deletion of their allocation in the 119.98-120.02 GHz band.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **123 -- 126**   |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **[12            |                  |                  |
|             | 3]{.underline} - |                  |                  |
| **MOD**     | 126** ~~EARTH    |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)~~      |                  |                  |
|             |                  |                  |                  |
|             | FIXED            |                  |                  |
|             |                  |                  |                  |
|             | [FIXED-SATELLITE |                  |                  |
|             | (space-to-Ear    |                  |                  |
|             | th)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | INTER-SATELLITE  |                  |                  |
|             |                  |                  |                  |
|             | > MOBILE **MOD** |                  |                  |
|             | > S5.558         |                  |                  |
|             | >                |                  |                  |
|             | > [MOBILE-SATELL |                  |                  |
|             | ITE]{.underline} |                  |                  |
|             | >                |                  |                  |
|             | > [RADIONAVIGAT  |                  |                  |
|             | ION]{.underline} |                  |                  |
|             | >                |                  |                  |
|             | > [RADION        |                  |                  |
|             | AVIGATION-SATELL |                  |                  |
|             | ITE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~SPACE RESEARCH |                  |                  |
|             | (passive)~~      |                  |                  |
|             |                  |                  |                  |
|             | [Radio           |                  |                  |
|             | Astron           |                  |                  |
|             | omy]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~S5.138         |                  |                  |
|             | S5.341~~         |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** This band is not required for passive sensor operations and
those allocations have been deleted. Satellite downlinks from 141-153
GHz band have been moved to the 123-130 GHz band to avoid interference
to the radio astronomy service. The radio astronomy service is added on
a secondary basis, for possible use in wide-band continuum observations.
Sharing conditions between the ISS and the FSS, MSS, RNS and RNSS
services need to be developed, but no imminent use of the band by these
services is contemplated. The MSS directional indicator has been left
undefined. The footnotes **S5.138** and **S5.341** do not apply to this
band due to changed band limit, and are consequentially deleted.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **126 -- 130**   |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **               |                  |                  |
|             | 126 -- ~~134~~** |                  |                  |
| **MOD**     | **[13            |                  |                  |
|             | 0]{.underline}** |                  |                  |
|             | ~~FIXED~~        |                  |                  |
|             |                  |                  |                  |
|             | [FIXED SATELLITE |                  |                  |
|             | (space-to-Ear    |                  |                  |
|             | th)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~I              |                  |                  |
|             | NTER-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | ~~MOBILE         |                  |                  |
|             | S5.558~~         |                  |                  |
|             |                  |                  |                  |
|             | [MOBILE          |                  |                  |
|             | SATELL           |                  |                  |
|             | ITE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~RADIOLOCATION  |                  |                  |
|             | S5.559~~         |                  |                  |
|             |                  |                  |                  |
|             | [RADIONAVIGAT    |                  |                  |
|             | ION]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [RADION          |                  |                  |
|             | AVIGATION-SATELL |                  |                  |
|             | ITE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [Radio           |                  |                  |
|             | Astron           |                  |                  |
|             | omy]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 554]{.underline} |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** Satellite downlinks from 141-153 GHz band have been moved
to the 123-130 GHz band to avoid interference to the radio astronomy
service. The radio astronomy service is added on a secondary basis for
spectral line and wide-band continuum observations. The fixed, mobile,
inter-satellite and radiolocation allocations have been relocated to
improve sharing situations. Sharing conditions between the FSS, MSS, RNS
and RNSS services need to be developed, but no imminent use of the band
by these services is contemplated. The MSS directional indicator has
been left undefined. The footnote **S5.554** has been modified to
include this band.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **130 -- 134**   |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **[130]{.und     |                  |                  |
|             | erline} -- 134** |                  |                  |
| **MOD**     | FIXED            |                  |                  |
|             |                  |                  |                  |
|             | INTER-SATELLITE  |                  |                  |
|             |                  |                  |                  |
|             | MOBILE **MOD**   |                  |                  |
|             | S5.558           |                  |                  |
|             |                  |                  |                  |
|             | > [RADIO         |                  |                  |
|             | > ASTRONOMY      |                  |                  |
|             | > **ADD**        |                  |                  |
|             | > **S5.RA        |                  |                  |
|             | S**]{.underline} |                  |                  |
|             | >                |                  |                  |
|             | >                |                  |                  |
|             |  ~~RADIOLOCATION |                  |                  |
|             | > S5.559~~       |                  |                  |
+-------------+------------------+------------------+------------------+

**Reason:** The addition of a radio astronomy allocation, footnote
**S5.RAS**, and **RES RAS** satisfies the requirements for radio
astronomy spectral line and wide band continuum observations from remote
locations world-wide. Sharing conditions between the RAS and the ISS
need to be developed. Footnote **S5.558** is modified to reflect new
mobile service band limit. Radiolocation service has been relocated, to
improve sharing conditions.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **134 -- 136**   |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **134 -- ~~142~~ |                  |                  |
|             | [13              |                  |                  |
| MOD         | 6]{.underline}** |                  |                  |
|             | [AMAT            |                  |                  |
|             | EUR]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [AMATEUR-SATELL  |                  |                  |
|             | ITE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~MOBILE         |                  |                  |
|             | S5.553~~         |                  |                  |
|             |                  |                  |                  |
|             | ~~MO             |                  |                  |
|             | BILE-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | ~~R              |                  |                  |
|             | ADIONAVIGATION~~ |                  |                  |
|             |                  |                  |                  |
|             | ~~RADIONAVIGA    |                  |                  |
|             | TION-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | [Radio           |                  |                  |
|             | Astron           |                  |                  |
|             | omy]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~Radiolocation~~ |                  |                  |
|             |                  |                  |                  |
|             | ~~S5.149 S5.340  |                  |                  |
|             | S5.554 S5.555~~  |                  |                  |
+-------------+------------------+------------------+------------------+

Reasons: The amateur and amateur-satellite services are moved here from
142-144 GHz band to avoid interference to radio astronomy at higher
frequencies. Radio astronomy is added as secondary service. All
footnotes are deleted, as they no longer apply to this band.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **136 -- 141**   |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **[136]{.un      |                  |                  |
|             | derline} --  [14 |                  |                  |
| **MOD**     | 1]{.underline}** |                  |                  |
|             | ~~MOBILE         |                  |                  |
|             | S5.553~~         |                  |                  |
|             |                  |                  |                  |
|             | ~~MO             |                  |                  |
|             | BILE-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | [RADIO ASTRONOMY |                  |                  |
|             | **ADD**          |                  |                  |
|             | **S5.RA          |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | > [RADIOLOCAT    |                  |                  |
|             | ION]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~R              |                  |                  |
|             | ADIONAVIGATION~~ |                  |                  |
|             |                  |                  |                  |
|             | ~~RADIONAVIGA    |                  |                  |
|             | TION-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | [Amat            |                  |                  |
|             | eur]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [Amateur-Satell  |                  |                  |
|             | ite]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~Radiolocation~~ |                  |                  |
|             |                  |                  |                  |
|             | **MOD** S5.149   |                  |                  |
|             | ~~S5.340 S5.554  |                  |                  |
|             | S5.555~~         |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** Services currently allocated to 144 -149 GHz band are moved
to this band to facilitate realignment. The addition of a radio
astronomy allocation, footnote **S5.RAS**, and **RES RAS** satisfies the
requirements for radio astronomy spectral line and wide band continuum
observations from remote locations worldwide. This band added to those
listed under **S5.149**. Since this band is no longer passive, it is
removed from **S5.340**. The footnote **S5.554** no longer applies to
this band and is deleted. Footnote **S5.555** no longer needed, as the
radio astronomy service is allocated on a primary basis in the entire
136-141 GHz band.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **141 -- 148.5** |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **[141]{.unde    |                  |                  |
|             | rline} --  142** |                  |                  |
| **MOD**     | [FI              |                  |                  |
|             | XED]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | MOBILE           |                  |                  |
|             | ~~S5.553~~       |                  |                  |
|             |                  |                  |                  |
|             | ~~MO             |                  |                  |
|             | BILE-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | [RADIO ASTRONOMY |                  |                  |
|             | **ADD**          |                  |                  |
|             | **S5.RA          |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | > [RADIOLOCAT    |                  |                  |
|             | ION]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~R              |                  |                  |
|             | ADIONAVIGATION~~ |                  |                  |
|             |                  |                  |                  |
|             | ~~RADIONAVIGA    |                  |                  |
|             | TION-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~Radiolocation~~ |                  |                  |
|             |                  |                  |                  |
|             | **MOD** S5.149   |                  |                  |
|             | ~~S5.340 S5.554  |                  |                  |
|             | S5.555~~         |                  |                  |
+-------------+------------------+------------------+------------------+
| USA/ /      | > **142 -- 144** |                  |                  |
|             | > ~~AMATEUR~~    |                  |                  |
| **MOD**     |                  |                  |                  |
|             | ~~AMA            |                  |                  |
|             | TEUR-SATELLITE~~ |                  |                  |
|             |                  |                  |                  |
|             | [FI              |                  |                  |
|             | XED]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [MOB             |                  |                  |
|             | ILE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [RADIO ASTRONOMY |                  |                  |
|             | **ADD**          |                  |                  |
|             | **S5.RA          |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [RADIOLOCAT      |                  |                  |
|             | ION]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 149]{.underline} |                  |                  |
+-------------+------------------+------------------+------------------+
| USA/ /      | **               |                  |                  |
|             | 144 -- ~~149~~** |                  |                  |
| **MOD**     | **[148.          |                  |                  |
|             | 5]{.underline}** |                  |                  |
|             | [FI              |                  |                  |
|             | XED]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [MOB             |                  |                  |
|             | ILE]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [RADIO ASTRONOMY |                  |                  |
|             | **ADD**          |                  |                  |
|             | **S5.RA          |                  |                  |
|             | S**]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | RADIOLOCATION    |                  |                  |
|             |                  |                  |                  |
|             | ~~Amateur~~      |                  |                  |
|             |                  |                  |                  |
|             | ~~Ama            |                  |                  |
|             | teur-Satellite~~ |                  |                  |
|             |                  |                  |                  |
|             | **MOD** S5.149   |                  |                  |
|             | ~~S5.555~~       |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** Allocations are transferred to the 141-148.5 GHz band from
the 126-134 GHz band to allow for radio astronomy allocations in this
band. The bandwidth has been reduced to 7.5 GHz to accommodate EES
(passive) and SR (passive) requirements in the 148.5-151.5 GHz band. The
addition of a radio astronomy allocation, footnote **S5.RAS**, and **RES
RAS** satisfies the requirements for radio astronomy spectral line and
wide band continuum observations from remote locations worldwide. Since
the 141-142 GHz sub-band is no longer passive, **S5.340** is deleted
from that band and modified accordingly. All sub-bands are added to
those listed under **S5.149**. Footnotes **S5.554** and **S5.555** no
longer apply to any portion of this band and are deleted and modified
accordingly.

+-------------+------------------+------------------+------------------+
|             | **GHz**          |                  |                  |
|             |                  |                  |                  |
|             | **               |                  |                  |
|             | 148.5 -- 151.5** |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Allocation to    |                  |                  |
|             | Services         |                  |                  |
+-------------+------------------+------------------+------------------+
|             | Region 1         | Region 2         | Region 3         |
+-------------+------------------+------------------+------------------+
| USA/ /      | **[148.5]{.und   |                  |                  |
|             | erline} -- 149** |                  |                  |
| **MOD**     | [EARTH           |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passi           |                  |                  |
|             | ve)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [RADIO           |                  |                  |
|             | ASTRON           |                  |                  |
|             | OMY]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~RADIOLOCATION~~ |                  |                  |
|             |                  |                  |                  |
|             | [SPACE RESEARCH  |                  |                  |
|             | (passi           |                  |                  |
|             | ve)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~Amateur~~      |                  |                  |
|             |                  |                  |                  |
|             | ~~Ama            |                  |                  |
|             | teur-Satellite~~ |                  |                  |
|             |                  |                  |                  |
|             | ~~S5.149~~       |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 340]{.underline} |                  |                  |
|             | ~~S5.555~~       |                  |                  |
+-------------+------------------+------------------+------------------+
| USA/ /      | **149 -- 150**   |                  |                  |
|             | [EARTH           |                  |                  |
| **MOD**     | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passi           |                  |                  |
|             | ve)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~FIXED~~        |                  |                  |
|             |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~FIXED-SATELLITE |                  |                  |
|             | (s               |                  |                  |
|             | pace-to-Earth)~~ |                  |                  |
|             |                  |                  |                  |
|             | ~~MOBILE~~       |                  |                  |
|             |                  |                  |                  |
|             | [RADIO           |                  |                  |
|             | ASTRON           |                  |                  |
|             | OMY]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [SPACE RESEARCH  |                  |                  |
|             | (passi           |                  |                  |
|             | ve)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 340]{.underline} |                  |                  |
+-------------+------------------+------------------+------------------+
| USA/ /      | **150 -- 151**   |                  |                  |
|             | EARTH            |                  |                  |
| **MOD**     | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | ~~FIXED~~        |                  |                  |
|             |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~FIXED-SATELLITE |                  |                  |
|             | (s               |                  |                  |
|             | pace-to-Earth)~~ |                  |                  |
|             |                  |                  |                  |
|             | ~~MOBILE~~       |                  |                  |
|             |                  |                  |                  |
|             | [RADIO           |                  |                  |
|             | ASTRON           |                  |                  |
|             | OMY]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | SPACE RESEARCH   |                  |                  |
|             | (passive)        |                  |                  |
|             |                  |                  |                  |
|             | ~~S5.149~~       |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 340]{.underline} |                  |                  |
|             | ~~S5.385~~       |                  |                  |
+-------------+------------------+------------------+------------------+
| USA/ /      | **151 --         |                  |                  |
|             | [151.            |                  |                  |
| **MOD**     | 5]{.underline}** |                  |                  |
|             | [EARTH           |                  |                  |
|             | EXPLO            |                  |                  |
|             | RATION-SATELLITE |                  |                  |
|             | (passi           |                  |                  |
|             | ve)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | ~~FIXED~~        |                  |                  |
|             |                  |                  |                  |
|             | ~                |                  |                  |
|             | ~FIXED-SATELLITE |                  |                  |
|             | (s               |                  |                  |
|             | pace-to-Earth)~~ |                  |                  |
|             |                  |                  |                  |
|             | ~~MOBILE~~       |                  |                  |
|             |                  |                  |                  |
|             | [RADIO           |                  |                  |
|             | ASTRON           |                  |                  |
|             | OMY]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [SPACE RESEARCH  |                  |                  |
|             | (passi           |                  |                  |
|             | ve)]{.underline} |                  |                  |
|             |                  |                  |                  |
|             | [**MOD**         |                  |                  |
|             | S5.              |                  |                  |
|             | 340]{.underline} |                  |                  |
+-------------+------------------+------------------+------------------+

**Reasons:** The current passive allocation of 150-151 GHz has
insufficient bandwidth for remote sensing observations and is not
adequately protected from potential interference. The scientific
requirement is for a 3 GHz band centered at 150 GHz for use in
conjunction with water vapour observations around 183 GHz. Also, the
150.74 GHz nitrous oxide line at required for microwave limb sounding
applications. All active services are relocated from this band to meet
these requirements. Since the 148.5-151.5 GHz band is now purely
passive, it is added to those listed under **S5.340**. For the same
reason, there is no need to include the band 150-151 GHz in **S5.149**,
and it is deleted from this footnote. The footnotes **S5.385** (150-151
GHz band) and **S5.555** (148.5-149 GHz band) are no longer needed and
are deleted from these bands

+------------+-----------------+-----------------+--------------------+
|            | **GHz**         |                 |                    |
|            |                 |                 |                    |
|            | **1             |                 |                    |
|            | 51.5 -- 155.5** |                 |                    |
+------------+-----------------+-----------------+--------------------+
|            | Allocation to   |                 |                    |
|            | Services        |                 |                    |
+------------+-----------------+-----------------+--------------------+
|            | Region 1        | Region 2        | Region 3           |
+------------+-----------------+-----------------+--------------------+
| USA/ /     | **              |                 |                    |
|            | 151[.5]{.underl |                 |                    |
| **MOD**    | ine} -- 1~~56~~ |                 |                    |
|            | [55.5           |                 |                    |
|            | ]{.underline}** |                 |                    |
|            | FIXED           |                 |                    |
|            |                 |                 |                    |
|            | ~~              |                 |                    |
|            | FIXED-SATELLITE |                 |                    |
|            | (sp             |                 |                    |
|            | ace-to-Earth)~~ |                 |                    |
|            |                 |                 |                    |
|            | MOBILE          |                 |                    |
|            |                 |                 |                    |
|            | [RADIO          |                 |                    |
|            | ASTRONOMY       |                 |                    |
|            | **ADD**         |                 |                    |
|            | **S5.RAS        |                 |                    |
|            | **]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | > [RADIOLOCATI  |                 |                    |
|            | ON]{.underline} |                 |                    |
|            | >               |                 |                    |
|            | > [**MOD**      |                 |                    |
|            | > S5.1          |                 |                    |
|            | 49]{.underline} |                 |                    |
+------------+-----------------+-----------------+--------------------+
|            |                 |                 |                    |
+------------+-----------------+-----------------+--------------------+

**Reasons:** The FSS downlink allocation is incompatible with radio
astronomy requirements in this band and is relocated elsewhere. The
addition of a radio astronomy allocation, footnote **S5.RAS**, and **RES
RAS** satisfies the requirements for radio astronomy spectral line and
wide band continuum observations from remote locations worldwide. This
band is added to those listed under footnote **S5.149**. The additional
radiolocation allocation compensates for removal from the 126-134 GHz
band.

+------------+-----------------+-----------------+--------------------+
|            | **GHz**         |                 |                    |
|            |                 |                 |                    |
|            | **1             |                 |                    |
|            | 55.5 -- 158.5** |                 |                    |
+------------+-----------------+-----------------+--------------------+
|            | Allocation to   |                 |                    |
|            | Services        |                 |                    |
+------------+-----------------+-----------------+--------------------+
|            | Region 1        | Region 2        | Region 3           |
+------------+-----------------+-----------------+--------------------+
| USA/ /     | **[155.5]{.unde |                 |                    |
|            | rline} -- 156** |                 |                    |
| **MOD**    | [EARTH          |                 |                    |
|            | EXPLOR          |                 |                    |
|            | ATION-SATELLITE |                 |                    |
|            | (passive)       |                 |                    |
|            | **ADD**         |                 |                    |
|            | S5.A            |                 |                    |
|            | AA]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | FIXED [**ADD**  |                 |                    |
|            | S5.B            |                 |                    |
|            | BB]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | ~~              |                 |                    |
|            | FIXED-SATELLITE |                 |                    |
|            | (sp             |                 |                    |
|            | ace-to-Earth)~~ |                 |                    |
|            |                 |                 |                    |
|            | MOBILE [**ADD** |                 |                    |
|            | S5.B            |                 |                    |
|            | BB]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | [RADIO          |                 |                    |
|            | ASTRONOMY       |                 |                    |
|            | **ADD**         |                 |                    |
|            | **S5.RAS        |                 |                    |
|            | **]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | [SPACE RESEACH  |                 |                    |
|            | (passive)       |                 |                    |
|            | **ADD**         |                 |                    |
|            | S5.C            |                 |                    |
|            | CC]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | > [**MOD**      |                 |                    |
|            | > S5.1          |                 |                    |
|            | 49]{.underline} |                 |                    |
+------------+-----------------+-----------------+--------------------+
| USA/ /     | **156 -- 158**  |                 |                    |
|            | EARTH           |                 |                    |
| **MOD**    | EXPLOR          |                 |                    |
|            | ATION-SATELLITE |                 |                    |
|            | (passive)       |                 |                    |
|            | [**ADD**        |                 |                    |
|            | S5.A            |                 |                    |
|            | AA]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | FIXED [**ADD**  |                 |                    |
|            | S5.B            |                 |                    |
|            | BB]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | ~~              |                 |                    |
|            | FIXED-SATELLITE |                 |                    |
|            | (sp             |                 |                    |
|            | ace-to-Earth)~~ |                 |                    |
|            |                 |                 |                    |
|            | MOBILE [**ADD** |                 |                    |
|            | S5.B            |                 |                    |
|            | BB]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | [RADIO          |                 |                    |
|            | ASTRONOMY       |                 |                    |
|            | **ADD**         |                 |                    |
|            | **S5.RAS        |                 |                    |
|            | **]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | [SPACE RESEACH  |                 |                    |
|            | (passive)       |                 |                    |
|            | **ADD**         |                 |                    |
|            | S5.C            |                 |                    |
|            | CC]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | > [**MOD**      |                 |                    |
|            | > S5.1          |                 |                    |
|            | 49]{.underline} |                 |                    |
+------------+-----------------+-----------------+--------------------+
| USA/ /     | **158           |                 |                    |
|            | -- 1~~64~~[58.5 |                 |                    |
| **MOD**    | ]{.underline}** |                 |                    |
|            | [EARTH          |                 |                    |
|            | EXPLOR          |                 |                    |
|            | ATION-SATELLITE |                 |                    |
|            | (passive)       |                 |                    |
|            | **ADD**         |                 |                    |
|            | S5.A            |                 |                    |
|            | AA]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | FIXED [**ADD**  |                 |                    |
|            | S5.B            |                 |                    |
|            | BB]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | ~~              |                 |                    |
|            | FIXED-SATELLITE |                 |                    |
|            | (sp             |                 |                    |
|            | ace-to-Earth)~~ |                 |                    |
|            |                 |                 |                    |
|            | MOBILE [**ADD** |                 |                    |
|            | S5.B            |                 |                    |
|            | BB]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | [RADIO          |                 |                    |
|            | ASTRONOMY       |                 |                    |
|            | **ADD**         |                 |                    |
|            | **S5.RAS        |                 |                    |
|            | **]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | [SPACE RESEACH  |                 |                    |
|            | (passive)       |                 |                    |
|            | **ADD**         |                 |                    |
|            | S5.C            |                 |                    |
|            | CC]{.underline} |                 |                    |
|            |                 |                 |                    |
|            | > [**MOD**      |                 |                    |
|            | > S5.1          |                 |                    |
|            | 49]{.underline} |                 |                    |
+------------+-----------------+-----------------+--------------------+

**Reasons:** The scientific requirement is for a 3 GHz band centered at
157 GHz for use in conjunction with water vapour observations around 183
GHz. This allocation is only required until 2018 since current planned
and operational instruments are already in this band. By 2018, all of
these applications will have transitioned to the 148.5-151.5 GHz band.
The FSS downlink allocation is incompatible with radio astronomy
requirements and is relocated. The addition of a radio astronomy
allocation, footnote **S5.RAS**, and **RES RAS** satisfies the
requirements for radio astronomy spectral line and wide band continuum
observations from remote locations worldwide. These sub-bands are added
to those listed under **S5.149**. EES operations in the band 155.5-158.5
GHz need to be protected until 1/1/2018. After this date the fixed and
mobile services need to co-ordinate with radio astronomy sites only. The
space research (passive) allocation is limited to space-based radio
astronomy in this band.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **158.5 -- 164** |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **158[.5]{.und   |                  |                  |
|            | erline} -- 164** |                  |                  |
| **MOD**    | FIXED            |                  |                  |
|            |                  |                  |                  |
|            | FIXED-SATELLITE  |                  |                  |
|            | (space-to-Earth) |                  |                  |
|            |                  |                  |                  |
|            | MOBILE           |                  |                  |
|            |                  |                  |                  |
|            | [                |                  |                  |
|            | MOBILE-SATELLITE |                  |                  |
|            | (space-to-Ear    |                  |                  |
|            | th)]{.underline} |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** Mobile-satellite allocation has been added to partially
compensate for loss of 134-142 GHz band.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **164 -- 167**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | *                |                  |                  |
|            | *164 -- 16~~8~~[ |                  |                  |
| **MOD**    | 7]{.underline}** |                  |                  |
|            | EARTH            |                  |                  |
|            | EXPLO            |                  |                  |
|            | RATION-SATELLITE |                  |                  |
|            | (passive)        |                  |                  |
|            |                  |                  |                  |
|            | RADIO ASTRONOMY  |                  |                  |
|            |                  |                  |                  |
|            | SPACE RESEARCH   |                  |                  |
|            | (passive)        |                  |                  |
|            |                  |                  |                  |
|            | [**MOD**         |                  |                  |
|            | S5.              |                  |                  |
|            | 340]{.underline} |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** Passive sensors require only this 3 GHz band from the
current 164-168 GHz passive allocation. It is essential to maintain the
164 - 167 GHz portion of the band passive. The **MOD** refers to the
band limits and addition of the band to footnote **S5.340** only, no
change **[(NOC)]{.underline}** is proposed to the allocations within
this sub-band. This band, along with the band 148.5-151.5 GHz will
become the harmonised reference window for passive sensor observations
of the 183.31 GHz water vapor line. The band is also used for microwave
limb sounding of the 164.38 GHz ClO line. This passive band has been
added to those listed under **S5.340**; the 164-168 GHz band had been
omitted from **S5.340**.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **167 -- 174.8** |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **[167]{.und     |                  |                  |
|            | erline} -- 168** |                  |                  |
| **MOD**    | ~~EARTH          |                  |                  |
|            | EXPLO            |                  |                  |
|            | RATION-SATELLITE |                  |                  |
|            | (passive)~~      |                  |                  |
|            |                  |                  |                  |
|            | [FI              |                  |                  |
|            | XED]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [FIXED-SATELLITE |                  |                  |
|            | (space-to-Ear    |                  |                  |
|            | th)]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [INTER-SATELL    |                  |                  |
|            | ITE]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [MOBILE **MOD**  |                  |                  |
|            | S5.              |                  |                  |
|            | 558]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | ~~RADIO          |                  |                  |
|            | ASTRONOMY~~      |                  |                  |
|            |                  |                  |                  |
|            | ~~SPACE RESEARCH |                  |                  |
|            | (passive)~~      |                  |                  |
+------------+------------------+------------------+------------------+
| USA/ /     | **168 -- 170**   |                  |                  |
|            | FIXED            |                  |                  |
| **MOD**    |                  |                  |                  |
|            | [FIXED-SATELLITE |                  |                  |
|            | (space-to-Ear    |                  |                  |
|            | th)]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [INTER-SATELL    |                  |                  |
|            | ITE]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | MOBILE [**MOD**  |                  |                  |
|            | S5.              |                  |                  |
|            | 558]{.underline} |                  |                  |
+------------+------------------+------------------+------------------+
| USA/ /     | **170 -- 174.5** |                  |                  |
|            | FIXED            |                  |                  |
| **MOD**    |                  |                  |                  |
|            | [FIXED-SATELLITE |                  |                  |
|            | (space-to-Ear    |                  |                  |
|            | th)]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | INTER-SATELLITE  |                  |                  |
|            |                  |                  |                  |
|            | MOBILE **MOD**   |                  |                  |
|            | S5.558           |                  |                  |
|            |                  |                  |                  |
|            | ~~S5.149         |                  |                  |
|            | S5.385~~         |                  |                  |
+------------+------------------+------------------+------------------+
| USA/ /     | **174.5          |                  |                  |
|            |  -- 17~~6.5~~[4. |                  |                  |
| **MOD**    | 8]{.underline}** |                  |                  |
|            | ~~EARTH          |                  |                  |
|            | EXPLO            |                  |                  |
|            | RATION-SATELLITE |                  |                  |
|            | (passive)~~      |                  |                  |
|            |                  |                  |                  |
|            | FIXED            |                  |                  |
|            |                  |                  |                  |
|            | INTER-SATELLITE  |                  |                  |
|            |                  |                  |                  |
|            | MOBILE **MOD**   |                  |                  |
|            | S5.558           |                  |                  |
|            |                  |                  |                  |
|            | ~~SPACE RESEARCH |                  |                  |
|            | (passive)~~      |                  |                  |
|            |                  |                  |                  |
|            | ~~S5.149         |                  |                  |
|            | S5.385~~         |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** Passive services do not need the 167-168 GHz band and this
band is yielded to displaced active services. Fixed, mobile and
inter-satellite services are added to the 167-174.8 GHz band as well as
fixed-satellite downlinks to the 167-174.5 GHz band to compensate for
deletions in other bands. Passive sensor allocations are deleted from
the 174.5-174.8 GHz band to properly adjust the band edge for the 183.3
GHz remote sensing requirement. Footnotes **S5.149** and **S5.385** are
deleted from these bands and are appropriately modified. Footnote
**S5.558** is added next to mobile allocations in this band and the
footnote is modified to include the 167-174.8 GHz band due to sharing
with the inter-satellite service.

+---+------------+------------------+------------------+------------------+
|   |            | **GHz**          |                  |                  |
|   |            |                  |                  |                  |
|   |            | **               |                  |                  |
|   |            | 174.8 -- 191.8** |                  |                  |
+---+------------+------------------+------------------+------------------+
|   |            | Allocation to    |                  |                  |
|   |            | Services         |                  |                  |
+---+------------+------------------+------------------+------------------+
|   |            | Region 1         | Region 2         | Region 3         |
+---+------------+------------------+------------------+------------------+
|   | USA/ /     | **174            |                  |                  |
|   |            | .~~5~~[8]{.under |                  |                  |
|   | **MOD**    | line} -- 176.5** |                  |                  |
|   |            | EARTH            |                  |                  |
|   |            | EXPLO            |                  |                  |
|   |            | RATION-SATELLITE |                  |                  |
|   |            | (passive)        |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~FIXED~~        |                  |                  |
|   |            |                  |                  |                  |
|   |            | INTER-SATELLITE  |                  |                  |
|   |            | [**ADD**         |                  |                  |
|   |            | S5.              |                  |                  |
|   |            | YYY]{.underline} |                  |                  |
|   |            |                  |                  |                  |
|   |            | > ~~MOBILE       |                  |                  |
|   |            | > S5.558~~       |                  |                  |
|   |            |                  |                  |                  |
|   |            | SPACE RESEARCH   |                  |                  |
|   |            | (passive)        |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~S5.149         |                  |                  |
|   |            | S5.385~~         |                  |                  |
+---+------------+------------------+------------------+------------------+
|   | USA/ /     | **176.5 -- 182** |                  |                  |
|   |            | [EARTH           |                  |                  |
|   | **MOD**    | EXPLO            |                  |                  |
|   |            | RATION-SATELLITE |                  |                  |
|   |            | (passi           |                  |                  |
|   |            | ve)]{.underline} |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~FIXED~~        |                  |                  |
|   |            |                  |                  |                  |
|   |            | INTER-SATELLITE  |                  |                  |
|   |            | [**ADD**         |                  |                  |
|   |            | S5.              |                  |                  |
|   |            | YYY]{.underline} |                  |                  |
|   |            |                  |                  |                  |
|   |            | > ~~MOBILE       |                  |                  |
|   |            | > S5.558~~       |                  |                  |
|   |            |                  |                  |                  |
|   |            | [SPACE RESEARCH  |                  |                  |
|   |            | (passi           |                  |                  |
|   |            | ve)]{.underline} |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~S5.149~~       |                  |                  |
|   |            | ~~S5.385~~       |                  |                  |
+---+------------+------------------+------------------+------------------+
| > |            | **182 -- 185**   |                  |                  |
|   |            | EARTH            |                  |                  |
| U |            | EXPLO            |                  |                  |
| S |            | RATION-SATELLITE |                  |                  |
| A |            | (passive)        |                  |                  |
| / |            |                  |                  |                  |
| > |            | ~~RADIO          |                  |                  |
|   |            | ASTRONOMY~~      |                  |                  |
| / |            |                  |                  |                  |
| > |            | SPACE RESEARCH   |                  |                  |
| > |            | (passive)        |                  |                  |
|   |            |                  |                  |                  |
| * |            | **MOD** S5.340   |                  |                  |
| * |            | S5.563           |                  |                  |
| M |            |                  |                  |                  |
| O |            |                  |                  |                  |
| D |            |                  |                  |                  |
| * |            |                  |                  |                  |
| * |            |                  |                  |                  |
+---+------------+------------------+------------------+------------------+
|   | USA/ /     | **185 -- 190**   |                  |                  |
|   |            | [EARTH           |                  |                  |
|   | **MOD**    | EXPLO            |                  |                  |
|   |            | RATION-SATELLITE |                  |                  |
|   |            | (passi           |                  |                  |
|   |            | ve)]{.underline} |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~FIXED~~        |                  |                  |
|   |            |                  |                  |                  |
|   |            | INTER-SATELLITE  |                  |                  |
|   |            | [**ADD**         |                  |                  |
|   |            | S5.              |                  |                  |
|   |            | YYY]{.underline} |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~MOBILE         |                  |                  |
|   |            | S5.558~~         |                  |                  |
|   |            |                  |                  |                  |
|   |            | [SPACE RESEARCH  |                  |                  |
|   |            | (passi           |                  |                  |
|   |            | ve)]{.underline} |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~S5.149~~       |                  |                  |
|   |            | ~~S5.385~~       |                  |                  |
+---+------------+------------------+------------------+------------------+
|   | USA/ /     | **190            |                  |                  |
|   |            |  -- ~~200~~[191. |                  |                  |
|   | **MOD**    | 8]{.underline}** |                  |                  |
|   |            | [EARTH           |                  |                  |
|   |            | EXPLO            |                  |                  |
|   |            | RATION-SATELLITE |                  |                  |
|   |            | (passi           |                  |                  |
|   |            | ve)]{.underline} |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~MOBILE         |                  |                  |
|   |            | S5.553~~         |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~MO             |                  |                  |
|   |            | BILE-SATELLITE~~ |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~R              |                  |                  |
|   |            | ADIONAVIGATION~~ |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~RADIONAVIGA    |                  |                  |
|   |            | TION-SATELLITE~~ |                  |                  |
|   |            |                  |                  |                  |
|   |            | [SPACE RESEARCH  |                  |                  |
|   |            | (passi           |                  |                  |
|   |            | ve)]{.underline} |                  |                  |
|   |            |                  |                  |                  |
|   |            | ~~S5.341         |                  |                  |
|   |            | S5.554~~         |                  |                  |
|   |            | [**MOD**         |                  |                  |
|   |            | S5.              |                  |                  |
|   |            | 340]{.underline} |                  |                  |
+---+------------+------------------+------------------+------------------+

**Reasons**: The band 174.8-191.8 GHz is of crucial importance for
passive sensing of the water vapour absorption line whose peak is at
183.31 GHz. Sharing with fixed and mobile services is not practical, so
these services are relocated. The inter-satellite service needs to be
limited to links between GSO satellites and to a pfd limit as specified
in sharing studies. Footnote **S5.YYY** is added to reflect this
requirement. The entire band is deleted from those listed under
**S5.149**, **S5.385** (secondary radio astronomy allocation). All
applicable footnotes are appropriately modified. Since no terrestrial
radio astronomy use of the band 182-185 GHz is possible due to high
atmospheric absorption, the radio astronomy allocation is deleted.
Active services are moved from the 190-191.8 GHz band to make room for
the addition of passive sensor allocations. The footnote **S5.554** is
deleted from this band, to reflect removal of active services, and
modified to reflect this change. **S5.341** does not apply to this band
and is deleted. The footnote **S5.340** has been modified to include
this band.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **191.8 -- 200** |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **[191.8]{.und   |                  |                  |
|            | erline} -- 200** |                  |                  |
| **MOD**    | [FIXED **MOD**   |                  |                  |
|            | S5.              |                  |                  |
|            | 553]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [INTER-SATELL    |                  |                  |
|            | ITE]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | MOBILE **MOD**   |                  |                  |
|            | S5.553           |                  |                  |
|            |                  |                  |                  |
|            | MOBILE-SATELLITE |                  |                  |
|            |                  |                  |                  |
|            | RADIONAVIGATION  |                  |                  |
|            |                  |                  |                  |
|            | RADIONAVI        |                  |                  |
|            | GATION-SATELLITE |                  |                  |
|            |                  |                  |                  |
|            | S5.341 **MOD**   |                  |                  |
|            | S5.554           |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons**: Inter-satellite and fixed service allocations added to
compensate for deletions from other bands. The footnotes **S5.553** and
**S5.554** modified to reflect deletion of terrestrial services from
190.0 -191.8 GHz band, and to include stations in the fixed service,
allocated to the 191.8-200 GHz band.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **200 -- 209**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **200 -- 202**   |                  |                  |
|            | EARTH            |                  |                  |
| **MOD**    | EXPLO            |                  |                  |
|            | RATION-SATELLITE |                  |                  |
|            | (passive)        |                  |                  |
|            |                  |                  |                  |
|            | ~~FIXED~~        |                  |                  |
|            |                  |                  |                  |
|            | ~~MOBILE~~       |                  |                  |
|            |                  |                  |                  |
|            | [RADIO           |                  |                  |
|            | ASTRON           |                  |                  |
|            | OMY]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | SPACE RESEARCH   |                  |                  |
|            | (passive)        |                  |                  |
|            |                  |                  |                  |
|            | [**MOD**         |                  |                  |
|            | S5.              |                  |                  |
|            | 340]{.underline} |                  |                  |
|            | S5.341           |                  |                  |
+------------+------------------+------------------+------------------+
| USA/ /     | **               |                  |                  |
|            | 202 -- 2~~17~~[0 |                  |                  |
| **MOD**    | 9]{.underline}** |                  |                  |
|            | [EARTH           |                  |                  |
|            | EXPLO            |                  |                  |
|            | RATION-SATELLITE |                  |                  |
|            | (passi           |                  |                  |
|            | ve)]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | ~~FIXED~~        |                  |                  |
|            |                  |                  |                  |
|            | ~                |                  |                  |
|            | ~FIXED-SATELLITE |                  |                  |
|            | (E               |                  |                  |
|            | arth-to-space)~~ |                  |                  |
|            |                  |                  |                  |
|            | ~~MOBILE~~       |                  |                  |
|            |                  |                  |                  |
|            | [RADIO           |                  |                  |
|            | ASTRON           |                  |                  |
|            | OMY]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [SPACE RESEARCH  |                  |                  |
|            | (passi           |                  |                  |
|            | ve)]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [**MOD**         |                  |                  |
|            | S5.              |                  |                  |
|            | 340]{.underline} |                  |                  |
|            | S5.341           |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** This band is the optimum band for microwave limb sounding
of water vapour and other atmospheric constituents in the low
troposphere. Fixed and mobile services as well as the fixed-satellite
uplink in the 202-209 GHz band are all relocated to meet this
requirement. Footnote **S5.340** is consequentially modified, to include
this band. A radio astronomy allocation has been added to satisfy the
requirement for radio astronomy spectral line and wide band continuum
observations.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **209 -- 217**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **[209]{.und     |                  |                  |
|            | erline} -- 217** |                  |                  |
| **MOD**    | FIXED            |                  |                  |
|            |                  |                  |                  |
|            | FIXED-SATELLITE  |                  |                  |
|            | (Earth-to-space) |                  |                  |
|            |                  |                  |                  |
|            | MOBILE           |                  |                  |
|            |                  |                  |                  |
|            | [RADIO ASTRONOMY |                  |                  |
|            | **ADD**          |                  |                  |
|            | **S5.RA          |                  |                  |
|            | S**]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [**MOD**         |                  |                  |
|            | S5.              |                  |                  |
|            | 149]{.underline} |                  |                  |
|            | S5.341           |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** The addition of a radio astronomy allocation, footnote
**S5.RAS**, and **RES RAS** satisfies the requirements for radio
astronomy spectral line and wide band continuum observations from remote
locations world-wide. This band has been added to those listed under
**S5.149**.

+------------+------------------+------------------+------------------+
|            |                  |                  |                  |
+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **217 -- 226**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **               |                  |                  |
|            | 217 -- 2~~31~~[2 |                  |                  |
| **MOD**    | 6]{.underline}** |                  |                  |
|            | ~~EARTH          |                  |                  |
|            | EXPLO            |                  |                  |
|            | RATION-SATELLITE |                  |                  |
|            | (passive)~~      |                  |                  |
|            |                  |                  |                  |
|            | [FI              |                  |                  |
|            | XED]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [FIXED-SATELLITE |                  |                  |
|            | (Earth-to-spa    |                  |                  |
|            | ce)]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [MOB             |                  |                  |
|            | ILE]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | RADIO ASTRONOMY  |                  |                  |
|            |                  |                  |                  |
|            | SPACE RESEARCH   |                  |                  |
|            | (passive)        |                  |                  |
|            | [**ADD**         |                  |                  |
|            | S5.              |                  |                  |
|            | CCC]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [**MOD**         |                  |                  |
|            | S5.              |                  |                  |
|            | 149]{.underline} |                  |                  |
|            | ~~S5.340~~       |                  |                  |
|            | S5.341           |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** Passive sensors do not need this band and the EESS
allocation is deleted. Fixed and mobile services and fixed-satellite
uplinks are moved to this band from other locations. This band is no
longer passive; consequentially it now needs to be listed under footnote
**S5.149**. This band has been removed from footnote **S5.340** and
footnote **S5.340** has been deleted from this band.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **226 -- 231.5** |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **[226]{.und     |                  |                  |
|            | erline} -- 231** |                  |                  |
| **MOD**    | EARTH            |                  |                  |
|            | EXPLO            |                  |                  |
|            | RATION-SATELLITE |                  |                  |
|            | (passive)        |                  |                  |
|            |                  |                  |                  |
|            | RADIO ASTRONOMY  |                  |                  |
|            |                  |                  |                  |
|            | SPACE RESEARCH   |                  |                  |
|            | (passive)        |                  |                  |
|            | [**ADD**         |                  |                  |
|            | S5.              |                  |                  |
|            | CCC]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | **MOD** S5.340   |                  |                  |
|            | S5.341           |                  |                  |
+------------+------------------+------------------+------------------+
| USA/ /     | **231 --         |                  |                  |
|            | 23~~5~~1.5**     |                  |                  |
| **MOD**    | [EARTH           |                  |                  |
|            | EXPLO            |                  |                  |
|            | RATION-SATELLITE |                  |                  |
|            | (passi           |                  |                  |
|            | ve)]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | ~~FIXED~~        |                  |                  |
|            |                  |                  |                  |
|            | ~                |                  |                  |
|            | ~FIXED-SATELLITE |                  |                  |
|            | (s               |                  |                  |
|            | pace-to-Earth)~~ |                  |                  |
|            |                  |                  |                  |
|            | ~~MOBILE~~       |                  |                  |
|            |                  |                  |                  |
|            | [RADIO           |                  |                  |
|            | ASTRON           |                  |                  |
|            | OMY]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [SPACE RESEARCH  |                  |                  |
|            | (passive)        |                  |                  |
|            | S5.              |                  |                  |
|            | CCC]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | ~                |                  |                  |
|            | ~Radiolocation~~ |                  |                  |
|            |                  |                  |                  |
|            | [**MOD** S5.340  |                  |                  |
|            | S5.              |                  |                  |
|            | 341]{.underline} |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** It is essential to maintain the 226-231.5 GHz band passive.
The **MOD** refers to the band limits only; no change
**[(NOC)]{.underline}** is proposed to the allocations within this
sub-band. Passive sensors require exclusive use of only the 226-231.5
GHz portion of the 217-231 GHz band for microwave limb sounding of
atmospheric constituents. In addition, this band contains a 4 GHz
reference window for higher frequency water vapor measurements. This
band is of vital importance to the radio astronomy service for
observations of the 230.5 GHz CO line. The footnote **S5.340** is
modified to take into account that 217-226 GHz band is no longer
passive, while adding the 231-231.5 GHz band. The fixed and mobile
services, as well as the fixed-satellite downlinks, have been deleted
from the 231-231.5 GHz portion, to allow passive observations in this
band.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **231.5 -- 235** |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **[231.5]{.und   |                  |                  |
|            | erline} -- 235** |                  |                  |
| **MOD**    | FIXED            |                  |                  |
|            |                  |                  |                  |
|            | FIXED-SATELLITE  |                  |                  |
|            | (space-to-Earth) |                  |                  |
|            |                  |                  |                  |
|            | MOBILE           |                  |                  |
|            |                  |                  |                  |
|            | Radiolocation    |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons**: The only required change in this band is the 500 MHz upward
adjustment of the lower band edge (see the previous modification).

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **235 -- 238**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **235 -- 238**   |                  |                  |
|            | EARTH            |                  |                  |
| **MOD**    | EXPLO            |                  |                  |
|            | RATION-SATELLITE |                  |                  |
|            | (passive)        |                  |                  |
|            |                  |                  |                  |
|            | FIXED            |                  |                  |
|            |                  |                  |                  |
|            | ~                |                  |                  |
|            | ~FIXED-SATELLITE |                  |                  |
|            | (s               |                  |                  |
|            | pace-to-Earth)~~ |                  |                  |
|            |                  |                  |                  |
|            | MOBILE           |                  |                  |
|            |                  |                  |                  |
|            | [RADIO ASTRONOMY |                  |                  |
|            | **ADD**          |                  |                  |
|            | **S5.RA          |                  |                  |
|            | S**]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | SPACE RESEARCH   |                  |                  |
|            | (passive)        |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** Passive sensors are limited to microwave limb sounding in
the band 235-238 GHz and can share with terrestrial services due to the
absorption characteristics of this band. The fixed-satellite downlink is
not compatible with the radio astronomy requirement for this band and is
reallocated elsewhere. The addition of a radio astronomy allocation,
footnote **S5.RAS**, and **RES RAS** satisfies the requirements for
radio astronomy spectral line and wide band continuum observations from
remote locations world-wide.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **238 -- 241**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **238 -- 241**   |                  |                  |
|            | FIXED            |                  |                  |
| **MOD**    |                  |                  |                  |
|            | FIXED-SATELLITE  |                  |                  |
|            | (space-to-Earth) |                  |                  |
|            |                  |                  |                  |
|            | MOBILE           |                  |                  |
|            |                  |                  |                  |
|            | [RADIOLOCAT      |                  |                  |
|            | ION]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | > [RADIONAVIGAT  |                  |                  |
|            | ION]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | [RADION          |                  |                  |
|            | AVIGATION-SATELL |                  |                  |
|            | ITE]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | ~                |                  |                  |
|            | ~Radiolocation~~ |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** Additional allocations to the radiolocation,
radionavigation and radionavigation-satellite services, to compensate
for allocation changes in the 150-160 GHz frequency range.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **241 -- 248**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **241 -- 248**   |                  |                  |
|            | RADIOLOCATION    |                  |                  |
| **MOD**    |                  |                  |                  |
|            | [RADIO ASTRONOMY |                  |                  |
|            | **ADD**          |                  |                  |
|            | **S5.RA          |                  |                  |
|            | S**]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | Amateur          |                  |                  |
|            |                  |                  |                  |
|            | A                |                  |                  |
|            | mateur-Satellite |                  |                  |
|            |                  |                  |                  |
|            | S5.138 [**MOD**  |                  |                  |
|            | S5.              |                  |                  |
|            | 149]{.underline} |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** The addition of a radio astronomy allocation, footnote
**S5.RAS**, and **RES RAS** satisfies the requirements for radio
astronomy spectral line and wide band continuum observations from remote
locations world-wide. This band is added to those listed under footnote
**S5.149**. There is no change in sharing between existing services,
except for the introduction of the radio astronomy service allocation in
band.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **248 -- 250**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **248 -- 250**   |                  |                  |
|            | AMATEUR          |                  |                  |
| **MOD**    |                  |                  |                  |
|            | A                |                  |                  |
|            | MATEUR-SATELLITE |                  |                  |
|            |                  |                  |                  |
|            | [Radio           |                  |                  |
|            | Astron           |                  |                  |
|            | omy]{.underline} |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** The radio astronomy service allocation is added on a
secondary basis.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **250 -- 252**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **250 -- 252**   |                  |                  |
|            | EARTH            |                  |                  |
| **MOD**    | EXPLO            |                  |                  |
|            | RATION-SATELLITE |                  |                  |
|            | (passive)        |                  |                  |
|            |                  |                  |                  |
|            | SPACE RESEARCH   |                  |                  |
|            | (passive)        |                  |                  |
|            |                  |                  |                  |
|            | [RADIO           |                  |                  |
|            | ASTRON           |                  |                  |
|            | OMY]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | ~~S5.149         |                  |                  |
|            | S5.555~~         |                  |                  |
|            | [**MOD**         |                  |                  |
|            | S5.              |                  |                  |
|            | 340]{.underline} |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** Microwave limb sounding of nitrous oxide near 251 GHz
defines the passive-sensing requirement for this band. Radio astronomy
is added to the other passive services. The addition of another passive
service does not alter sharing scenario. The footnotes **S5.149** and
**S5.555** are consequentially deleted and band lists in these footnotes
are appropriately modified. The footnote **S5.340** is added to reflect
the passive nature of band.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **252 -- 265**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **252 -- 265**   |                  |                  |
|            | [FIXED **MOD**   |                  |                  |
| **MOD**    | S5.              |                  |                  |
|            | 553]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | MOBILE **MOD**   |                  |                  |
|            | S5.553           |                  |                  |
|            |                  |                  |                  |
|            | MOBILE-SATELLITE |                  |                  |
|            | (Earth-to-space) |                  |                  |
|            |                  |                  |                  |
|            | RADIONAVIGATION  |                  |                  |
|            |                  |                  |                  |
|            | RADIONAVI        |                  |                  |
|            | GATION-SATELLITE |                  |                  |
|            |                  |                  |                  |
|            | [RADIO ASTRONOMY |                  |                  |
|            | **ADD**          |                  |                  |
|            | **S5.RA          |                  |                  |
|            | S**]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | **MOD** S5.149   |                  |                  |
|            | ~~S5.385~~       |                  |                  |
|            | S5.554 ~~S5.555  |                  |                  |
|            | S5.564~~         |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** The fixed service is relocated to this band due to other
allocation actions in other bands. The addition of a radio astronomy
allocation and new footnote **S5.RAS**, along with **RES RAS** satisfy
requirements for radio astronomy spectral line (current secondary
allocation to radio astronomy at 257.5 - 258 GHz deleted) and wide band
continuum observations from remote locations worldwide. The directional
indicator added to mobile-satellite service allocation, which is paired
with allocation in the 190-200 GHz band. Atmospheric absorption in the
252-265 GHz band is relatively constant and somewhat higher than in the
paired downlink band. This entire band is added to those listed under
footnote **S5.149**, and the band is deleted from **S5.385** and
**S5.555**. The footnotes **S5.385** and **S5.555** have been modified
to reflect changes. The footnote **S5.564** is no longer needed in this
band due to the worldwide nature of the radio astronomy allocation.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **265 -- 275**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **265 -- 275**   |                  |                  |
|            | FIXED            |                  |                  |
| **MOD**    |                  |                  |                  |
|            | FIXED-SATELLITE  |                  |                  |
|            | (Earth-to-space) |                  |                  |
|            |                  |                  |                  |
|            | MOBILE           |                  |                  |
|            |                  |                  |                  |
|            | RADIO ASTRONOMY  |                  |                  |
|            | [**ADD**         |                  |                  |
|            | **S5.RA          |                  |                  |
|            | S**]{.underline} |                  |                  |
|            |                  |                  |                  |
|            | **MOD** S5.149   |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** The only change is the addition of footnote **S5.RAS**,
reflecting the protection requirement for only a limited number of radio
astronomy sites worldwide.

+------------+------------------+------------------+------------------+
|            | **GHz**          |                  |                  |
|            |                  |                  |                  |
|            | **275 -- 400**   |                  |                  |
+------------+------------------+------------------+------------------+
|            | Allocation to    |                  |                  |
|            | Services         |                  |                  |
+------------+------------------+------------------+------------------+
|            | Region 1         | Region 2         | Region 3         |
+------------+------------------+------------------+------------------+
| USA/ /     | **275 -- ~~400~~ |                  |                  |
|            | [100             |                  |                  |
| **MOD**    | 0]{.underline}** |                  |                  |
|            | (Not allocated)  |                  |                  |
|            | **MOD** S5.565   |                  |                  |
+------------+------------------+------------------+------------------+

**Reasons:** The change of the upper limit for applicability of footnote
**MOD S5.565** is to account for various passive service needs above 275
GHz that have been identified by administrations. Many lines and windows
required for radio astronomy observations and passive remote sensing of
the Earth exist above 275 GHz.

**S5.149** In making assignments to stations of other services to which
the bands:

13 360-13 410 kHz,

25 550-25 670 kHz,

37.5-38.25 MHz,

73-74.6 MHz in\
Regions 1 and 3,

150.05-153 MHz in\
Region 1,

322-328.6 MHz\*,

406.1-410 MHz,

608-614 MHz in\
Regions 1 and 3,

1 330-1 400 MHz\*,

1 610.6-1 613.8 MHz\*,

1 660-1 670 MHz,

1 718.8-1 722.2 MHz\*,

2 655-2 690 MHz,

3 260-3 267 MHz\*,

3 332-3 339 MHz\*,

3 345.8-3 352.5 MHz\*,

4 825-4 835 MHz\*,

4 950-4 990 MHz,

4 990-5 000 MHz,

6 650-6 675.2 MHz\*,

10.6-10.68 GHz,

14.47-14.5 GHz\*,

22.01-22.21 GHz\*,

22.21-22.5 GHz,

22.81-22.86 GHz\*,

23.07-23.12 GHz\*,

31.2-31.3 GHz,

31.5-31.8 GHz in\
Regions 1 and 3,

36.43-36.5 GHz\*,

42.5-43.5 GHz,

42.77-42.87 GHz\*,

43.07-43.17 GHz\*,

43.37-43.47 GHz\*,

48.94-49.04 GHz\*,

~~72.77-72.91 GHz\*,~~

[76.5-81.5 GHz]{.underline}

[81.5-84.5 GHz,]{.underline}

[84.5-86 GHz]{.underline}

~~93.07-93.27 GHz\*,~~

[92-94 GHz,]{.underline}

[94.1-95 GHz,]{.underline}

[95-100 GHz,]{.underline}

~~97.88-98.08 GHz\*,~~

[100-102 GHz,]{.underline}

[102-105 GHz,]{.underline}

[105-109.5 GHz]{.underline}

[111.8-114.25 GHz]{.underline}

140.69-140.98 GHz\*,

[141-148.5 GHz,]{.underline}

[148.5-151.5 GHz]{.underline}

~~144.68-144.98 GHz\*,~~

~~145.45-145.75 GHz\*,~~

~~146.82-147.12 GHz\*,~~

~~150-151 GHz\*,~~

174.42-175.02 GHz\*,

177-177.4 GHz\*,

178.2-178.6 GHz\*,

181-181.46 GHz\*,

~~186.2-186.6 GHz\*,~~

[209-226 GHz]{.underline}

~~250-251 GHz\*,~~

~~257.5-258 GHz\*,~~

~~261-265 GHz,~~

~~262.24-262.76 GHz\*,~~

[252-265 GHz]{.underline}

265-275 GHz,

~~265.64-266.16 GHz\*,~~

~~267.34-267.86 GHz\*,~~

~~271.74-272.26 GHz~~

\*

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**).

**Reasons:** The changes to this footnote are consequential to the
changes made to the related allocations.

**S5.340** All emissions are prohibited in the following bands:

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 -- 50.4^1^ GHz 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 directio~~n,

[148.5-151.5 GHz,]{.underline}

[164 - 167 GHz]{.underline},

182 - 185 GHz except those provided for by No. **S5.563**,

[190 - 191.8 GHz,]{.underline}

[200 - 202 GHz]{.underline}

[202 - 209 GHz]{.underline}

~~217 - 228 GHz.~~

[226 - 231.5 GHz,]{.underline}

[250 - 252 GH]{.underline}z.

**Reasons:** The changes to this footnote are consequential to the
changes made to the related allocations.

**S5.341** In the bands 1 400 - 1 727 MHz, 101 - 120 GHz and 197 -
220 GHz, passive research is being conducted by some countries in a
programme for the search for intentional emissions of extraterrestrial
origin.

**Reasons:** This informational footnote is still accurate.

**S5.385** *Additional allocation:* the band~~s~~ 1 718.8 - 1 722.2 MHz,
~~150 - 151 GHz, 174.42 - 175.02 GHz, 177 - 177.4 GHz,
178.2 - 178.6 GHz, 181 - 181.46 GHz, [and]{.underline} 186.2 - 186.6 GHz
and 257.5 - 258 GHz~~ ~~are~~ [is]{.underline} also allocated to the
radio astronomy service on a secondary basis for spectral line
observations.

**Reasons:** The changes to this footnote are consequential to the
changes made to the related allocations.

**S5.553** In the bands 43.5 - 47 GHz, 66 - 71 GHz, 95 - 100 GHz,
~~134 - 142 GHz, 190~~[191.8]{.underline} - 200 GHz and 252 - 265 GHz,
stations in the [fixed and]{.underline} land mobile service may be
operated subject to not causing harmful interference to the space
radiocommunication services to which these bands are allocated (see
No. **S5.43**).

**Reasons:** The changes to this footnote are consequential to the
changes made to the related allocations.

**S5.554** In the bands 43.5 - 47 GHz, 66 - 71 GHz, 95 -100 GHz, ~~134 -
142~~ [126 - 134]{.underline} GHz, 19~~0~~1.8 - 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.

**Reasons:** The changes to this footnote are consequential to the
changes made to the related allocations.

**S5.555** *Additional allocation:* the band~~s~~ 48.94 - 49.04 GHz,
~~97.88 - 98.08 GHz, 140.69 - 140.98 GHz, 144.68 - 144.98 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.

**Reasons:** The changes to this footnote are consequential to the
changes made to the related allocations.

**S5.556** In the bands 51.4 - 54.25 GHz, 58.2 - 59 GHz~~,~~
[and]{.underline} 64 - 65 GHz, ~~72.77 - 72.91 GHz and 93.07 - 93.27
GHz,~~ radio astronomy observations may be carried out under national
arrangements.

**Reasons:** The changes to this footnote are consequential to the
changes made to the related allocations.

**S5.558** In the bands 55.78-58.2 GHz, 59-64 GHz, 66-71 GHz, ~~123 -
134~~ [122.5 - 126]{.underline} GHz, ~~170-182~~ [167 --
174.8]{.underline} GHz and 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**).

**Reasons:** The changes to this footnote are consequential to the
changes made to the related allocation.

**S5.559** In the band~~s~~ 59 - 64 GHz ~~and 126 - 134 GHz,~~ airborne
radars in the radiolocation service may be operated subject to not
causing harmful interference to the inter-satellite service (see No.
**S5.43**).

**Reasons:** The changes to this footnote are consequential to the
changes made to the related allocation. The radiolocation and
inter-satellite services are no longer co-allocated in this spectral
region.

**S5.560** In the band 78 - 79 GHz radars located on space stations may
be operated on a primary basis in the earth exploration-satellite
service and in the space research service.

**Reasons:** No change is required to this footnote

**S5.561** In the band ~~84 - 86~~ [74 - 76]{.underline} GHz, stations
in the fixed~~,~~ and mobile ~~and 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.

**Reasons:** The broadcasting satellite allocation has been transferred
to the 74-76 GHz band and the broadcasting and broadcasting satellite
services are no longer co-allocated.

**S5.562** The use of the band 94-94.1 GHz by the earth
exploration-satellite (active) and space research (active) services is
limited to spaceborne cloud radars.

**Reasons:** This footnote was the result of allocation decisions made
at WRC-97 and no change is needed.

~~**S5.564** Additional allocation: in Germany, Argentina, Spain,
Finland, France, India, Italy, the Netherlands and Sweden, the band
261 - 265 GHz is also allocated to the radio astronomy service on a
primary basis.~~

**Reasons:** The radio astronomy allocation is now worldwide in the
261-265 GHz band, therefore a country footnote is no longer needed.

**S5.565** The frequency band 275 - ~~400~~ [1000]{.underline}GHz may be
used by administrations for experimentation with, 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~~ [275 - 323,
327-371, 388 - 43~~4~~ GHz, 426 - 442 GHz, 453 - 510 GHz, 323 - 711 GHz,
and 795 - 909 GHz]{.underline}

-- Earth exploration-satellite service (passive) and space research
service (passive): 275 - 277 GHz, ~~300~~[294]{.underline} --
30~~2~~[6]{.underline} GHz, 3~~24~~[16]{.underline} --
3~~26~~[34]{.underline} GHz, 34~~5~~[2]{.underline} --
34~~7~~[9]{.underline} GHz, 363 -- 365 GHz[,]{.underline} ~~and~~
37~~9~~[1]{.underline} -- 38~~1~~[9]{.underline} GHz[, 416 -- 434 GHz,
442 -- 444 GHz, 496 -- 506 GHz, 546 -- 568 GHz, 624 -- 629 GHz, 634 --
654 GHz, 659 -- 661 GHz, 684 -- 692 GHz, 730 -- 732 GHz, 851 -- 853 GHz
and 951 -- 956 GHz]{.underline}.

Future research in this largely unexplored spectral region may yield
additional spectral lines and continuum bands of interest to the passive
services. Administrations are urged to take all practicable steps to
protect these passive services from harmful interference until the next
competent world radio conference.

**Reasons:** These additional bands have been identified by various
administrations as bands that will also be used for radio astronomy
observations and spaceborne passive remote sensing.

**S5.XXX** Use of the bands 116-123 GHz by the inter-satellite service
is limited to satellites in the 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.

Reasons: This footnote is required to protect passive sensors operating
in this band.

**S5.AAA** In the band 155.5 - 158.5 GHz, the allocation to the Earth
exploration-satellite (passive) and space research (passive) services
shall terminate on 1 January 2018.

**Reasons:** This allocation will not be needed by passive sensors after
the termination date. By the termination date, all passive sensors will
have transitioned to the 148.5 - 151.5 GHz band.

**S5.BBB** The date of entry for the allocation to the fixed and mobile
services in the band 155.5 - 158.5 GHz shall be 1 January 2018.

**Reasons:** Passive sensors require the use of this band until 1
January 2018.

**S5.CCC** Use of this allocation is limited to space-based radio
astronomy only.

**Reasons:** This band is a likely candidate for a future space based
radio astronomy mission. No other space research use is contemplated.

**S5.YYY** Use of the bands 174.8-182 GHz by the inter-satellite service
is limited to satellites in the 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.

Reasons: This footnote is required to protect passive sensors operating
in this band.

**S5.RAS** Use of this band by the radio astronomy service shall be in
accordance with the terms of Resolution **RAS**.

**Reasons:** To limit radio astronomy use of the band to coordination
zones is required to protect radio observatories, and facilitate use of
the band by the other co-allocated services.

**RESOLUTION RAS**

**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**

**Annex 1 is still under development**

**Reasons:** The footnote **S5.RAS** limits radio astronomy use of the
band to coordination zones required to protect radio observatories.
**RES RAS** sets out the details of the limitation on the radio
astronomy service. Annex 1 lists the observatories that operate in the
radio astronomy service in bands shared with terrestrial services above
71 GHz at the time of WRC-00.

[^1]: ^\*^ IMT-2000 was previously known as Future Public Land Mobile
    Telecommunication Systems (FPLMTS).