DA 06-960

May 1, 2006

**FCC SEEKS COMMENT ON RECOMMENDATIONS APPROVED BY THE ADVISORY
COMMITTEE FOR THE 2007 WORLD RADIOCOMMUNICATION CONFERENCE**

**IB Docket No. 04-286**

On April 27, 2006, the World Radiocommunication Conference Advisory
Committee (WRC-07 Advisory Committee) approved and submitted for
Commission consideration its recommendations with regard to a number of
issues that will be considered by the 2007 World Radiocommunication
Conference (WRC-07).[^1] These recommendations are attached to this
Public Notice.

Based upon an initial review of the attached WRC-07 Advisory Committee
recommendations, the International Bureau, in coordination with other
FCC Bureaus and Offices, tentatively concludes that it can generally
support these recommendations. The International Bureau, however, notes
the differing views expressed by WRC-03 Advisory Committee participants
in documents WAC/102 and WAC/104.

The FCC seeks comment on the attached recommendations as well as
recommendations that appear in all of the WRC-07 Advisory Committee
documents.[^2] The FCC also seeks comment on the attached draft
preliminary views and proposals that have been developed by the
Executive Branch Agencies and submitted to the FCC by the National
Telecommunications and Information Administration (NTIA). Finally, the
FCC seeks comment on the International Bureau's initial conclusions with
regard to the WRC-07 Advisory Committee recommendations.

The comments provided by interested parties will assist the FCC in its
upcoming consultations with the U.S. Department of State and NTIA in the
development of U.S. positions for WRC-07. As the recommendations that
are attached to this Public Notice may evolve in the course of
interagency discussions as WRC‑07 nears, they do not constitute final
U.S. Government position on any issue.

The complete text of these recommendations is available in the FCC's
Reference Information Center, Room CY-A257, 445 12^th^ Street, SW,
Washington, DC 20554 or by accessing the FCC's WRC-07 world wide web
site at: <http://www.fcc.gov/wrc-07>. Comments on the recommendations
may be filed by referencing IB Docket 04-286 using the Commission's
Electronic Comment Filing System (ECFS) or by filing paper copies.
Parties are encouraged to file electronically by following the
instructions at: <http://www.fcc.gov/cgb/ecfs> Parties who choose to
file paper copies only should submit an original and four copies of each
filing. Guidelines and address for paper filings are available at:
<http://www.fcc.gov/osec> . In addition, please submit one copy of your
comments electronically or by paper to Alexander Roytblat, FCC WRC-07
Director, Federal Communications Commission, Room 6-A865, 445 12^th^
Street, SW, Washington, DC 20554; e-mail: WRC07@fcc.gov. Comments should
refer to IB Docket No. 04-286 and to specific recommendations by
document number. The deadline for comments on the recommendations is May
26, 2006. 

I.  **Recommendations by the Advisory Committee for the 2007 World
    Radiocommunication Conference:**

**[INFORMAL WORKING GROUP 1 (IWG-1)]{.underline}**

**[Terrestrial and Space Science Services]{.underline}**

**Document WAC/111(27.04.06):**

## DRAFT PROPOSALS FOR THE WORK OF THE CONFERENCE {#draft-proposals-for-the-work-of-the-conference .unnumbered}

**Agenda item 1.5:** to consider spectrum requirements and possible
additional spectrum allocations for aeronautical telecommand and high
bit-rate aeronautical telemetry, in accordance with Resolution **230
(WRC-03);**

**Background Information:** This agenda item seeks to address a growing
demand for spectrum that is allocated for wideband aeronautical
telemetry and associated telecommand. There is a large and growing
shortfall in spectrum that is necessary to conduct aeronautical
telemetry. The shortfall is exacerbated by the loss of telemetry
spectrum diverted to other than telemetry applications. As indicated in
the responses to ITU-R Question 231/8, additional spectrum is necessary
due to rapidly increasing data rates associated with the testing of new
and emerging technologies. For example, newer technologies rely
increasingly on high-resolution video for monitoring aircraft functions
or increased use of computer based aircraft systems. Without access to
additional spectrum, aeronautical development would be subject to
escalating delays and costs, and the growth of the aerospace industry
would be impaired (including equipment manufacturers, civilian programs
and test ranges, and airlines). New worldwide telemetry spectrum will
aid numerous countries and the international aeronautical community as
administrations continue to support their national airlines and some
administrations initiate their own test programs. Existing international
allocations used for aeronautical telemetry will need to remain
available.

Aeronautical mobile telemetry ("AMT") is an application within the
mobile service. Depending on the extent to which new AMT spectrum
requirements can be fulfilled using Primary Mobile Service allocations,
it is important that the suitability of additional spectrum for AMT be
studied ("suitable" as defined below). International recognition of
bands suitable for AMT will not only encourage international
harmonization of test equipment, but also provide assurance to
Administrations that, based on technical studies conducted in the ITU-R,
implementation of wideband telemetry systems can be accomplished by
those Administrations wishing to do so without disrupting other services
using the bands. This will also enable manufacturers to offer
prospective customers aircraft with common test equipment packages, and
thus help airlines achieve additional economies in the aircraft
life-cycle cost. Moreover, by establishing conditions under which AMT
use of a band would be suitable, incumbent users of the spectrum can be
assured that they will not experience unacceptable interference, and
manufacturers and test ranges will have a measure of additional
certainty for the substantial investment in range infrastructure that
will be incurred in equipping aircraft to use new bands deemed suitable
for AMT.

The need for additional spectrum has been studied by several
administrations. The requirement may differ depending on national and
regional needs. It is not necessary to fulfill all AMT requirements in
only one band. The U.S. requires an additional 650 MHz of spectrum for
aeronautical flight test telemetry. The new requirements for
aeronautical telemetry are only in the air-to-ground direction inasmuch
as telecommand functions (i.e., ground-to-air transmissions) can be
accommodated in other bands used for telemetry. In addition, this new
AMT spectrum will not be used for the protection of life and property.
The latter AMT applications will continue to be accommodated in other
bands used for telemetry (see Nos. **5.342**, **5.343**, and **5.394**
in the Radio Regulations). Hence, aeronautical mobile telemetry
applications in new spectrum will not require the level of protection
associated with operations in other telemetry bands.

ITU-R WP 8B conducted numerous studies of bands that could be used to
satisfy the requirements of wideband aeronautical telemetry
applications. Several bands were studied for suitability to implement
AMT given the other co-primary services in the band. These are the
4 400-4 940, 5 925-6 700, and 5 091-5 150 MHz bands. It is expected that
the implementation of wideband telemetry may require avoiding
co-frequency operations with other co-primary services that utilize
these bands in the same geographic area. This will likely mean that the
spectrum requirement for AMT would be satisfied using portions of each
of the bands studied and considered to be suitable for AMT
implementation. Suitable means, in this context, that AMT can be
implemented compatibly with other co-primary services utilizing the
band, assuming the implementation is in accordance with the criteria set
forth in the resolutions attached.

The ITU-R studies have demonstrated that aeronautical mobile telemetry
for flight test purposes can be implemented in these bands without
adversely affecting the operation of existing systems and allocated
services. However, the ability to implement AMT in some areas and in
some portions of the bands may be restricted based on deployment
intensity of other co-primary service stations that are ground-based,
such as the Fixed Service (FS) stations, in the same vicinity.
Application of frequency coordination will ensure that AMT is
implemented such that other services and systems are not negatively
impacted. The studies also show that there would not be undue
constraints placed on future deployment of systems in the co-allocated
services, provided applications are limited to flight testing conducted
in specific geographic areas.

In cases where AMT operations are in radio LOS of  Radio Astronomy
observatories as could be determined using a 500 km coordination
distance, it may be possible to arrange AMT time-sharing with those
observatories to enable AMT use of the 4825-4835 MHz band.

Rather than the more aggressive approach of "designating" or
"identifying" bands for AMT on a global basis, which could lead to a
perception that other services in the bands may have a lesser status,
the approach for regulatory accommodation of AMT has been to simply
determine the suitability of certain bands for the implementation of AMT
based on compatibility studies. This approach was in part based on the
realization that the necessary AMT operational or implementation
constraints will influence decisions on AMT implementation in each
administration. Since the conditions under which AMT could be
implemented can vary by administration, the approach maximizes the
flexibility of implementing AMT.

Any authorization of AMT operations within these bands would be decided
by individual administrations, and would be specifically limited to
testing of aircraft at designated flight test areas in the air-to-ground
direction within those individual countries. According to No. **5.444**
of the Radio Regulations, the 5 091-5 150 MHz band is to be used by the
MLS (Microwave Landing System) with precedence given to this
international standard system. However, the band 5 091-5 150 MHz is not
yet in use by MLS.

The 5 091-5 150 MHz band is already allocated to the Aeronautical radio
navigation service (ARNS) on a primary basis in all Regions and is also
allocated to the fixed-satellite service (FSS) (Earth-to-space) on a
primary basis. This FSS allocation is limited to feeder links of
non‑geostationary mobile-satellite systems in the mobile-satellite
service and is subject to coordination under No. **9.11A**. Test
aircraft are not intended to use ground-to-air transmissions in this
ARNS band. WP 8B is also considering the band 5 091-5 150 MHz under
agenda item 1.6 for the purpose possible allocation to the aeronautical
mobile (R) service.

**Proposal**

USA/ /01 ADD

**5.XXX** The bands 4 400-4 940 MHz and 5 925 - 6 700 MHz are suitable
for the implementation of aeronautical mobile telemetry applications for
flight test transmissions by aircraft stations to aeronautical stations.
Any such use does not preclude the use of these bands by other mobile
service applications or by other services to which these bands are
allocated on a co-primary basis and does not establish priority in the
Radio Regulations. Resolution **XXX (WRC-07)** shall apply. (WRC-07)

**Reasons:** A footnote as above could be used to satisfy a portion of
the 650 MHz spectrum requirement. The advantage of having such a
footnote is it merely states that the bands are suitable and that, via
the provisions of Resolution XXX, AMT for flight test could share
spectrum without causing undue constraints on other co-primary services
in the band(s). Furthermore, a finding that spectrum is suitable for AMT
implementation inherently would not preclude use of the bands by other
co-primary services. Resolution **XXX (WRC-07),** to be finalized upon
receipt of WP9D's response to a WP8B liaison statement, will outline the
sharing conditions in the band(s).

USA/ /02 ADD

**5.ZZZ** The band 5 091-5 150 MHz band is also allocated to the
aeronautical mobile service and is limited to flight test telemetry
transmissions by aircraft stations to aeronautical stations. This does
not preclude the use of this band by other services to which this band
is allocated on a co-primary basis and does not establish priority in
the Radio Regulations. Resolution **ZZZ (WRC‑07)** shall apply. (WRC-07)

**Reasons:** This allocation is necessary for implementation of AMT in
the band 5 091-5 150 MHz. The footnote will ensure that the new
allocation to AMS is limited to air-to-ground fight test telemetry only.
Resolution **ZZZ (WRC-07),** to be finalized, will outline the sharing
conditions in the band.

USA/ /03 MOD

**5.442** In the band ~~bands 4 825 -- 4 835 MHz and~~ 4 950-4 990 MHz,
the allocation to the mobile service is restricted to the mobile, except
aeronautical mobile, service. [In the band 4 825 -- 4 835 MHz
applications in the aeronautical mobile service are limited to flight
test telemetry transmissions by aircraft stations to aeronautical
stations, and Resolution XXX (WRC-07) shall apply.]{.underline}

**Reasons:** This modification to No. **5.442** exempts AMT from the
aeronautical mobile exclusion, consistent with compatibility studies,
and the Resolution specifies an appropriate coordination trigger.

USA/ /04 MOD

2 700-4 800 MHz

+----------------------+----------------------+-----------------------+
| Allocation to        |                      |                       |
| services             |                      |                       |
+----------------------+----------------------+-----------------------+
| Region 1             | Region 2             | Region 3              |
+----------------------+----------------------+-----------------------+
| ....                 |                      |                       |
+----------------------+----------------------+-----------------------+
| 4 400-4 500          |                      |                       |
| **FIXED**            |                      |                       |
|                      |                      |                       |
| **MOBILE [ADD        |                      |                       |
| 5.XXX]{.underline}** |                      |                       |
+----------------------+----------------------+-----------------------+
| 4 500-4 800 FIXED    |                      |                       |
|                      |                      |                       |
| FIXED-SATELLITE      |                      |                       |
| (space-to-Earth)     |                      |                       |
| 5.441                |                      |                       |
|                      |                      |                       |
| MOBILE [ADD          |                      |                       |
| 5.XXX]{.underline}   |                      |                       |
+----------------------+----------------------+-----------------------+
| **....**             |                      |                       |
+----------------------+----------------------+-----------------------+

4 800-5 570 MHz

+----------------------+----------------------+-----------------------+
| Allocation to        |                      |                       |
| services             |                      |                       |
+----------------------+----------------------+-----------------------+
| Region 1             | Region 2             | Region 3              |
+----------------------+----------------------+-----------------------+
| ....                 |                      |                       |
+----------------------+----------------------+-----------------------+
| 4 800-4 990          |                      |                       |
| **FIXED**            |                      |                       |
|                      |                      |                       |
| **MOBILE [MOD        |                      |                       |
| 5.442]{.underline}   |                      |                       |
| [ADD                 |                      |                       |
| 5.XXX]{.underline}** |                      |                       |
|                      |                      |                       |
| **Radio astronomy**  |                      |                       |
|                      |                      |                       |
| **5.149 5.339        |                      |                       |
| 5.443**              |                      |                       |
+----------------------+----------------------+-----------------------+
| 5 030-5 150          |                      |                       |
| AERONAUTICAL         |                      |                       |
| RADIONAVIGATION      |                      |                       |
|                      |                      |                       |
| 5.367 5.444 5.444A   |                      |                       |
| [ADD                 |                      |                       |
| 5.ZZZ]{.underline}   |                      |                       |
+----------------------+----------------------+-----------------------+
| ....                 |                      |                       |
+----------------------+----------------------+-----------------------+

5 570-7 250 MHz

+----------------------+----------------------+-----------------------+
| Allocation to        |                      |                       |
| services             |                      |                       |
+----------------------+----------------------+-----------------------+
| Region 1             | Region 2             | Region 3              |
+----------------------+----------------------+-----------------------+
| ....                 |                      |                       |
+----------------------+----------------------+-----------------------+
| 5 925-6 700          |                      |                       |
| **FIXED**            |                      |                       |
|                      |                      |                       |
| **FIXED-SATELLITE    |                      |                       |
| (Earth-to-space)     |                      |                       |
| 5.457A 5.457B**      |                      |                       |
|                      |                      |                       |
| **MOBILE [ADD        |                      |                       |
| 5.XXX]{.underline}** |                      |                       |
|                      |                      |                       |
| **5.149 5.440        |                      |                       |
| 5.458**              |                      |                       |
+----------------------+----------------------+-----------------------+
| ....                 |                      |                       |
+----------------------+----------------------+-----------------------+

**Reasons:** The appropriate modifications to the table of allocations
have been made to reflect proposals 1 through 3.

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

**RESOLUTION XXX (WRC-07)**

Use of the bands 4 400-4 940 MHz and 5 925-6 700 MHz by an Aeronautical
Mobile Telemetry (AMT) application in the mobile service

The World Radiocommunication Conference (Geneva, 2007),

c*onsidering*

*a)* that studies have been conducted within the ITU-R concerning the
compatibility of aeronautical mobile telemetry for flight testing with
other services in the bands 4 400 - 4 940 and 5 925 -- 6 700 MHz;

*b)* that studies have shown that the bands 4 400 -- 4 940 and 5 925 --
6 700 MHz are suitable for implementation of AMT when the criteria in
resolves 2 are used in the implementation;

*c)* that spectrum efficiency is enhanced in situations where new
applications can be implemented compatibly in bands that are heavily
occupied;

*d)* that AMT applications for flight testing present unique and
well-defined operating parameters;

e\) that depending on frequency usage by other systems and services in
the vicinity of flight test ranges, coordination may reveal that some
portions of the bands 4 400 -- 4 940 and 5 925 - 6 700 MHz may not be
available for AMT or may be restricted with respect to AMT use,

> *recognizing*

a)  the bands 4 400 - 4 500 MHz and 4 800 - 4 940 MHz are allocated to
    the fixed and mobile services on a primary basis, and for the band
    4825-4835 MHz No. **5.442** applies;

b)  the band 4 500 - 4 800 MHz is allocated to the fixed,
    fixed-satellite (space-to-Earth), and mobile services on a
    co-primary basis;

c)  the band 5 925 - 6 700 MHz is allocated to the fixed,
    fixed-satellite (Earth-to-space), and mobile services on a
    co-primary basis;

d\) that under No. 5.441, the use of the bands 4 500 - 4 800 MHz
(space-to-Earth) by the fixed satellite service shall be in accordance
with the provisions of Appendix 30B;

> *noting*

*a)* that the criteria used and assumptions made in sharing studies
between aeronautical mobile telemetry flight test applications and other
co-primary services should not be considered applicable to other sharing
situations,

> *resolves*

1 that administrations take into account that AMT applications for
flight test purposes can be implemented in the bands 4 400 -- 4 940 MHz
and 5 925 -- 6 700 MHz ;

2 that administrations choosing to implement aeronautical mobile
telemetry for flight test purposes shall utilize the criteria set forth
below:

-   transmissions limited to those from an aircraft station to an
    aeronautical station (that is, in the air-to-ground direction);

-   the peak e.i.r.p. density shall not exceed -2.2 dBW/MHz;

-   transmissions limited to designated flight test areas, where flight
    test areas are airspace designated by Administrations for flight
    testing within their territories;

-   coordinate use of the band 4 825 - 4 835 MHz with authorities of any
    Radio Astronomy observatories;

-   coordinate any proposed frequency assignments for AMT frequency use
    with frequency assignments of earth stations in the fixed satellite
    service and stations in the fixed and mobile services;

RESOLUTION ZZZ (WRC-07)

**Use of the band 5 091- 5 150 MHz by the aeronautical mobile service
for the implementation of aeronautical mobile telemetry applications**

The World Radiocommunication Conference (Geneva, 2007),

> *considering*

*a)* the current allocation of the frequency band 5 030-5 150 MHz to the
aeronautical radionavigation service;

*b)* the current allocation of the 5 091 - 5 150 MHz band to the
fixed-satellite (FSS) (Earth-to-space), which is limited to feeder links
of non-geostationary satellite (non-GSO) systems in the mobile-satellite
service (MSS)) services;

c)  the band 5 000-5 150 MHz is also allocated to the aeronautical
    mobile-satellite (R) service on a primary basis, subject to
    agreement obtained under No. 9.21;

d)  that this conference has allocated the 5 091-5 150 MHz band for the
    aeronautical mobile service (AMS) limited to air-to-ground flight
    test telemetry applications,

> *recognizing*

*a)* that spectrum efficiency is enhanced in situations where new
applications can be implemented compatibly in heavily occupied bands;

*b)* that studies have been conducted within the ITU-R concerning the
compatibility of aeronautical mobile telemetry (AMT) for flight testing
with other services in the band 5 091-5 150 MHz;

*c)* that precedence is to be given to the microwave landing system
(MLS) in accordance with No. **5.444** in the frequency band 5 030-5 150
MHz,

> *noting*

*a)* that ITU-R Report \[5GHz\] describes methods for ensuring
compatibility between the AMS and FSS operating in the band 5 091-5 150
MHz;

*b)* that the requirements for protection of MLS from AMS are contained
in Recommendation \[MLS-AMS\],

> *resolves*

1 that administrations take account that the band 5 091-5 150 MHz has
been allocated to AMS limited to implementation of aeronautical mobile
telemetry applications for flight test purposes based on the ITU studies
referred to in *noting a) and b)* above;

2 that administrations choosing to implement aeronautical mobile
telemetry for flight test purposes in the band 5 091-5 150 MHz be urged
to utilize the criteria set forth below:

-   transmissions limited to those from an aircraft station only (that
    is, transmissions in the air-to-ground direction);

-   transmissions limited to designated flight test areas, where flight
    test areas are airspace designated by Administrations for flight
    test within their territories;

-   coordinate AMT frequency use with earth stations in the
    fixed-satellite (Earth-to-space) service;

-   coordinate AMT frequency use with Microwave Landing Systems located
    within the coordination distance determined in Annex A, \[INSERT AS
    ANNEX A THE COORDINATION DISTANCE DEVELOPED IN WP 8B\]

**Document WAC/105(27.04.06):**

**Comments of IWG-1 on Draft U.S. Proposal from Exec. Branch Agencies
on**

**WRC-07 Agenda Item 1.20**

IWG-1 has considered the terrestrial elements of the draft U.S. proposal
for WRC-07 Agenda Item 1.20 from the Executive Branch agencies. It
offers the following comments:

1\. IWG-1 observes that it is premature for the United States to assert,
in the background or in the reasons for any specific proposal, that
values proposed for the protection of the EESS (passive) are based on an
assessment of the impact on the relevant active service. To the extent
that any ITU-R studies have even considered the impact on the active
service involved -- a requirement of both Resolution 738 (WRC-03) and
the agenda item -- no conclusions have yet been reached, which calls
into question the proposals for specific levels at this time. The
terrestrial industry is continuing to address this question with respect
to the operation of stations in the 1350-1400 MHz, 1427-1452 MHz,
31-31.3 GHz and 51.4-52.6 GHz bands.

2\. IWG-1 is concerned with the proposal for mandatory limits on fixed
service station emissions into adjacent bands. For protection against
unacceptable interference caused by unwanted emissions, mandatory limits
may be without precedent in the RRs. The language in the Exec. Branch
agencies' proposals for new footnotes (including 5.AAA, 5.CCC, and
5.EEE) would appear to invite BR examination under Art. 11 of compliance
with unwanted emission limits. Even if BR examination is not what the
Exec. Branch agencies contemplate, the mandatory nature of the wording
does not clearly exclude examination, and has serious negative
implications for the operation and evolution of advanced services in the
affected active service bands. In Document WAC/096, a redline of the
Exec. Branch agencies' proposal for Agenda Item 1.20, IWG-1 offers
suggestions for the wording of the proposed footnotes that aligns the
notes generally with the approach taken by WRC-03 with respect to
protection of the radioastronomy service from detrimental interference
(see Resolution 739 (WRC-03)), and removes any suggestion that the
footnotes would require BR examination.

3\. IWG-1 concurs with proposals USA/ /3, 5, 7 and 13.

**Document WAC/096(27.04.06):**

## DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE {#draft-proposal-for-the-work-of-the-conference .unnumbered}

**WRC-07 Agenda Item 1.20**[^3]**:** to consider the results of studies,
and proposals for regulatory measures, if appropriate, regarding the
protection of the Earth exploration-satellite service (passive) from
unwanted emissions of active services in accordance with Resolution
**738 (WRC--03)**;

**Background Information:** The *resolves* in Resolution **738** calls
for three actions: 1) study the compatibility between EESS (passive) and
the corresponding active services listed in the Table in Resolution
**738** to update Recommendation ITU-R SM.1633 or develop additional
Recommendations; 2) further study the impact of implementing the values
in *considering f* ) and *g*) in the bands 31--31.3 GHz and
51.4--52.6 GHz for unwanted emissions of systems operating in Region 2
and 3, taking into account that the impact on fixed-service systems in
Region 1 is documented in ITU-R Recommendation SM.1633; and 3) review
the results of studies in 1) and 2) in order to consider regulatory
measures, if appropriate, to ensure the protection of the EESS (passive)
operating in the bands listed in the table in Resolution **738** **(WRC
03)** from unwanted emissions of active services operating in the
corresponding bands while taking into account the impact on all
concerned services of implementing or not implementing such measures.
The table below shows the frequency band and radiocommunication service
combinations within the scope of the agenda item.

Studies documented in Recommendation ITU--R SM.1633 show that active
services in some of these bands do not produce significant unwanted
emissions in the adjacent passive band. However, active services in
other bands produce [or theoretically could produce]{.underline}
unwanted emissions in excess of EESS (passive) protection [criteria in
ITU-R recommendations.]{.underline}~~requirements.~~ Because of the
differences between the active services, and the differences in the use
of the active and passive services from band to band, the solutions for
this agenda item have been determined on a band-by-band and
service-by-service basis. [\[]{.underline}The proposed solutions were
determined considering the impact to both the active and passive
services.[\]]{.underline}

Resolution **738** can be suppressed, and there is no need for an agenda
item dealing with unwanted emission levels in EESS (passive) bands for
the next Conference.

**Proposal:**

**USA/ /1 MOD**

**USA/ /2 ADD**

**5.AAA** [Fixed Service stations brought into use after \[last day of
WRC-07\] should take reasonable steps to restrict]{.underline}~~In order
to ensure the protection of the Earth exploration-satellite (passive)
service in the band 1 400--1 427 MHz,~~ the unwanted emissions power
delivered to the antenna of any station in the fixed service operating
in the band 1 350--1 400 MHz or in the band 1 427--1 452 MHz [to the
level of \[]{.underline}~~shall be limited to~~ --45 dBW in the 27 MHz
reference bandwidth[\]]{.underline} of the [Earth Exploration Satellite
(passive) Service in the]{.underline} band 1 [400-1427
MHz.]{.underline}~~400--1 427 MHz. Fixed service systems in operation at
the date of entry into force of the Final Acts of WRC-07 are not subject
to this limit.~~

**Reasons:** Results of studies documented in Recommendation ITU--R
SM.1633 show that large numbers of higher power fixed service
transmitters can cause significant levels of unwanted emissions in the
1 400--1 427 MHz passive band. [\[]{.underline} Considering equitable
burden-sharing between the active and passive
services[\],]{.underline}~~,~~ the single-entry unwanted emission limit
proposed for future systems will slightly exceed the desired protection
level of the EESS (passive) sensors in some cases, but will still allow
the collection of valuable scientific data and will not place an undue
burden on the future development and use of the fixed service in these
nearby bands. [The level of regulatory protection of the EESS (passive)
from harmful interference that may be caused by the unwanted emissions
of active services is provided by No. 4.7]{.underline}

**USA/ /3 [NOC]{.underline}**

No change to Radio Regulations regarding the radiolocation service
allocation in the band 1 350--1 400 MHz.

**Reasons:** Although studies documented in Recommendation ITU--R
SM.1633 show that the radiolocation unwanted emissions in the EESS
(passive) band at 1 400--1 427 MHz would exceed the permissible
interference threshold in Recommendation ITU--R SA.1029--2, any
interference would occur for only short time periods and would be
readily discernible by users of the remote sensing data, allowing
corrupted data to be discarded. The remaining uncorrupted data is
expected to satisfy the scientific objectives of the EESS missions.
Studies also show that radars would experience unacceptable degradation
in operational coverage and range, target resolution, and accuracy if
required to meet unwanted emission limits in the 1 400--1 427 MHz band.
As with other pairs of active and passive bands, use of portions of the
allocated bands must not be restricted. Radars would suffer an increased
likelihood of interference from other radars and a reduction in coverage
range, while a reduced bandwidth would be inadequate for remote sensing
requirements.

**USA/ /4 ADD**

**5.BBB** [Space Operations Service earth stations brought into use
after \[last day of WRC-07\] should take reasonable steps to
restrict]{.underline} ~~In order to ensure the protection of the Earth
exploration-satellite (passive) service in the band 1 400--1 427 MHz,~~
the unwanted emissions e.i.r.p. of any earth station in the space
operation service (Earth-to-space) operating in the band 1 427--1 429
MHz ~~shall be limited~~ to [the level of]{.underline} 8 dBW in the 27
MHz reference bandwidth of the [Earth Exploration-Satellite (passive)
Service]{.underline} band 1 400--1 427 MHz. ~~Space operation service
earth stations in operation at the date of entry into force of the Final
Acts of WRC-07 are not subject to this limit.~~

**Reasons:** Results of studies documented in Recommendation ITU--R
SM.1633 show that earth station transmitters in the 1 427--1 429 MHz
band can cause significant levels of unwanted emissions in the
1 400--1 427 MHz passive band. [\[]{.underline}Considering equitable
burden-sharing between the active and passive services[\]]{.underline},
the single-entry unwanted emission limit proposed for future systems
will slightly exceed the desired protection level of the EESS (passive)
sensors in some cases, but will still allow the collection of valuable
scientific data and will not place an undue burden on the future
development and use of the space operation service (Earth-to-space) in
the 1 427--1 429 MHz band. [The level of regulatory protection of the
EESS (passive) from harmful interference that may be caused by the
unwanted emissions of active services is provided by No.
4.7]{.underline}

+-----------------------+-----------------------+-----------------------+
| **22-24.75 GHz**      |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Allocation to       |                       |                       |
| services**            |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Region 1**          | **Region 2**          | **Region 3**          |
+-----------------------+-----------------------+-----------------------+
| ....                  |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **22.55-23.55** FIXED |                       |                       |
|                       |                       |                       |
| INTER-SATELLITE       |                       |                       |
|                       |                       |                       |
| MOBILE                |                       |                       |
|                       |                       |                       |
| 5.149                 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **23.55-23.6** FIXED  |                       |                       |
|                       |                       |                       |
| MOBILE                |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **23.6-24** EARTH     |                       |                       |
| EXPLORATION-SATELLITE |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| RADIO ASTRONOMY       |                       |                       |
|                       |                       |                       |
| SPACE RESEARCH        |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| 5.340                 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| ....                  |                       |                       |
+-----------------------+-----------------------+-----------------------+

**USA/ /5 [NOC]{.underline}**

No change to Radio Regulations regarding the inter-satellite service
allocation in the band 22.55--23.55 GHz.

**Reasons:** Results of studies documented in Recommendation ITU--R
SM.1633 show that unwanted emissions from the ISS in the 22.55--23.55
GHz band are well below the recommended protection criteria for the EESS
(passive) in the 23.6--24.0 GHz band. Therefore, no changes are needed
to the Radio Regulations to protect the EESS (passive) in the 23.6--24.0
GHz band from unwanted emissions from the ISS in the 22.55--23.55 GHz
band.

**USA/ /6 MOD**

+-----------------------+-----------------------+-----------------------+
| **29.9-34.2 GHz**     |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Allocation to       |                       |                       |
| services**            |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Region 1**          | **Region 2**          | **Region 3**          |
+-----------------------+-----------------------+-----------------------+
| ....                  |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **30-31**             |                       |                       |
| FIXED-SATELLITE       |                       |                       |
| (Earth-to-space)      |                       |                       |
|                       |                       |                       |
| MOBILE-SATELLITE      |                       |                       |
| (Earth-to-space)      |                       |                       |
|                       |                       |                       |
| Standard frequency    |                       |                       |
| and time              |                       |                       |
| signal-satellite      |                       |                       |
| (space-to-Earth)      |                       |                       |
|                       |                       |                       |
| 5.542                 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **31-31.3** FIXED     |                       |                       |
| 5.543A [ADD           |                       |                       |
| 5.CCC]{.underline}    |                       |                       |
|                       |                       |                       |
| MOBILE                |                       |                       |
|                       |                       |                       |
| Standard frequency    |                       |                       |
| and time              |                       |                       |
| signal-satellite      |                       |                       |
| (space-to-Earth)      |                       |                       |
|                       |                       |                       |
| Space research 5.544  |                       |                       |
| 5.545                 |                       |                       |
|                       |                       |                       |
| 5.149                 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **31.3-31.5** EARTH   |                       |                       |
| EXPLORATION-SATELLITE |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| RADIO ASTRONOMY       |                       |                       |
|                       |                       |                       |
| SPACE RESEARCH        |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| 5.340                 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| ....                  |                       |                       |
+-----------------------+-----------------------+-----------------------+

**USA/ /7 [NOC]{.underline}**

No change to Radio Regulations regarding the fixed-satellite service
(Earth-to-space) allocation in the band 30-31 GHz.

**Reasons:** Results of studies documented in Recommendation ITU--R
SM.1633 show that unwanted emissions from the FSS in the 30-31 GHz band
do not exceed the recommended protection criteria for the EESS (passive)
in the 31.3-31.5 GHz band. The FSS allocation is separated from the EESS
(passive) allocation by 300 MHz, which greatly reduces the possibility
of FSS unwanted emissions exceeding the protection criteria in the EESS
(passive) band. Unwanted emission limits in the EESS (passive) band are
unnecessary, and could constrain the future development of FSS uplink
transmitters in the 30-31 GHz band.

**USA/ /8** **ADD**

**5.CCC** [Fixed Service stations brought into use after \[last day of
WRC-07\] should take reasonable steps to restrict]{.underline}~~In order
to ensure the protection of the Earth exploration-satellite (passive)
service in the band 31.3--31.5 GHz,~~ the unwanted emissions power
delivered to the antenna of any station in the fixed service operating
in the band 31.0--31.3 GHz [to the level of]{.underline}~~shall be
limited to~~[\[]{.underline} --38 dBW[\]]{.underline} in any 100 MHz
reference bandwidth of~~in~~ the [Earth Exploration-Satellite (passive)
Service in the]{.underline} band 31.3--31.5 GHz (see also No.
**5.543A**). ~~Fixed service systems in operation at the date of entry
into force of the Final Acts of WRC--07 are not subject to this limit.~~

**Reasons:** Studies documented in Recommendation ITU--R SM.1633
indicate that EESS (passive) systems in the 31.3--31.5 GHz band are
protected if unwanted emissions in that band from fixed service
transmitters in the 31.0--31.3 GHz band do not exceed --38 dBW in any
100 MHz reference bandwidth. Measures to ensure that future FS systems
in the 31.0--31.3 GHz band do not exceed this level will not constitute
an undue burden on the fixed service. [The level of regulatory
protection of the EESS (passive) from harmful interference that may be
caused by emissions from actives services is provided by No.
4.7]{.underline}

**USA/ /9 MOD**

+----------------------+----------------------+-----------------------+
| **40-47.5 GHz**      |                      |                       |
+----------------------+----------------------+-----------------------+
| **Allocation to      |                      |                       |
| services**           |                      |                       |
+----------------------+----------------------+-----------------------+
| **Region 1**         | **Region 2**         | **Region 3**          |
+----------------------+----------------------+-----------------------+
| ....                 |                      |                       |
+----------------------+----------------------+-----------------------+
| **47.2-47.5** FIXED  |                      |                       |
|                      |                      |                       |
| FIXED-SATELLITE      |                      |                       |
| (Earth-to-space)     |                      |                       |
| 5.552 [ADD           |                      |                       |
| 5.DDD]{.underline}   |                      |                       |
|                      |                      |                       |
| MOBILE               |                      |                       |
|                      |                      |                       |
| 5.552A               |                      |                       |
+----------------------+----------------------+-----------------------+

**USA/ /10 ADD**

**5.DDD** [Fixed Satellite Service earth stations brought into use after
\[last day of WRC-07\] should take reasonable steps to
restrict]{.underline}~~In order to ensure the protection of the Earth
exploration-satellite (passive) service in the band 50.2-50.4 GHz,~~ the
unwanted emissions e.i.r.p. of any earth station in the fixed-satellite
service operating in the band 47.2-50.2 GHz in Regions 2 and 3,
49.44-50.2 GHz in Region 1, and 50.4-51.4 GHz in all Regions [to the
level]{.underline}~~shall be limited~~ [of]{.underline}~~to~~
[\[]{.underline}30 dBW[\]]{.underline} in the 200 MHz reference
bandwidth of the [Earth Exploration (passive) Service in
the]{.underline} band 50.2-50.4 GHz [in clear sky conditions, and to a
level that is Y dB higher during fading conditions]{.underline}.
~~Fixed-satellite service systems in operation at the date of entry into
force of the Final Acts of WRC-07 are not subject to this limit.~~

**Reasons:** Results of studies documented in Recommendation ITU--R
SM.1633 show that fixed-satellite service uplink transmitters operating
in bands adjacent to then 50.2-50.4 GHz passive band can cause
significant levels of unwanted emissions in the 50.2-50.4 GHz passive
band. [The level of regulatory protection of the EESS (passive) from
harmful interference that may be caused by the unwanted emissions of
active services is provided by No. 4.7.]{.underline}

**USA/ /11 MOD**

+-----------------------+-----------------------+-----------------------+
| **51.4-55.78 GHz**    |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Allocation to       |                       |                       |
| services**            |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Region 1**          | **Region 2**          | **Region 3**          |
+-----------------------+-----------------------+-----------------------+
| **51.4-52.6** FIXED   |                       |                       |
| [ADD                  |                       |                       |
| 5.EEE]{.underline}    |                       |                       |
|                       |                       |                       |
| MOBILE                |                       |                       |
|                       |                       |                       |
| 5.547 5.556           |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **52.6-54.25** EARTH  |                       |                       |
| EXPLORATION-SATELLITE |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| SPACE RESEARCH        |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| 5.340 5.556           |                       |                       |
+-----------------------+-----------------------+-----------------------+
| ....                  |                       |                       |
+-----------------------+-----------------------+-----------------------+

**USA/ /12 ADD**

**5.EEE** [Fixed Service stations brought into use after \[last day of
WRC-07\] should take reasonable steps to restrict]{.underline}~~In order
to ensure the protection of the Earth exploration-satellite (passive)
service in the band 52.6--54.25 GHz,~~ the unwanted emissions power
delivered to the antenna of any station in the fixed service operating
in the band 51.4--52.6 GHz [to the level of]{.underline}~~shall be
limited to~~ [\[]{.underline}--33 dBW[\]]{.underline} in any 100 MHz
reference bandwidth [of]{.underline}~~in~~ the [Earth Exploration
(passive) Service in the]{.underline} band 52.6--54.25 GHz.
~~Fixed-service systems in operation at the date of entry into force of
the Final Acts of WRC-07 are not subject to this limit.~~

**Reasons:** Studies documented in Recommendation ITU--R SM.1633
indicate that EESS (passive) systems in the 52.6--54.25 GHz band are
protected if unwanted emissions in that band from fixed service
transmitters in the 51.4--52.6 GHz band do not exceed --33 dBW in any
100 MHz reference bandwidth. Measures to ensure that future FS systems
in the 51.4--52.6 GHz band do not exceed this level will not constitute
an undue burden on the fixed service. [The level of regulatory
protection of the EESS (passive) from harmful interference that may be
caused by the unwanted emissions of active services is provided by No.
4.7]{.underline}

**USA/ /13 SUP**

RESOLUTION 738 (WRC‑03)

Compatibility analyses between the Earth exploration-satellite\
service (passive) and active services

**Reasons:** Consequential to completion of this agenda item. All of the
actions required under this Resolution will have been completed at
WRC-07 and it may be suppressed. The technical studies will either have
confirmed that the unwanted emissions do not interfere with the EESS
(passive) or appropriate regulatory measures, if necessary, will have
been determined and decided by WRC-07.

**[DOCUMENT WAC/097(27.04.06)]{.underline}**

**Proposed Modification to NTIA/RCS proposal for A.I. 7.2 (Space
Research-22GHz)**

The NTIA in a communication from it Associate Administrator for
spectrum, has forwarded to the WAC a proposal related to Agenda Item 7.2
of WRC-07. This agenda item concerns proposals for the agenda of WRC-10.
The proposal of interest states:

"2.X.B to consider the addition of up to a 500 MHz primary space
research service (Earth-to-space) allocation in the 22.55-23.55 GHz
band, taking into account the results of ITU-R studies and recognizing
the need to protect existing systems in the band."

The background information in this draft proposal indicates that the
suggested new allocation is required to provide for, "a companion
uplink(Earth-to-space) band to provide the mission data, command and
control links" for referenced NASA missions to the moon both robotic and
manned. It is further indicated that such an allocation is desirable be
in close proximity to the ISS links in the 25.25-27.5 GHz allocation.

It is certainly clear that this is an important mission and clearly
needs spectrum support.

It is also clear that the referenced ISS allocation is already
extensively used and is expected to continue to be by both the Iridium
system and other NASA ISS links.

The Iridium ISS links operate in the band 23.183-23.377 GHz. Of concern
is that when an international allocation is adopted in Article 5 of the
Radio Regulations it is available to all 189 members of the ITU. This
means that there could be any number of Administrations requesting to
use the band, and particularity since this is proposed to be an uplink
transmission could present sharing difficulties.

As may not be apparent the capability offered by non-GSO MSS systems
such as Iridium

Have become increasingly important as the last communication link in the
context of emergencies and natural disasters cause by Tsunamis,
Hurricanes, and earth quakes. The ISS links are critical to providing
the associated services.

The importance of the NASA mission is recognized, however, it appears
that such a requirement could be met through an appropriate footnote to
the US table of allocations. However, alternatively, given the
requirement indicated, it could be accommodated through a modification
of this proposal which avoids conflict with the Iridium ISS links. The
NASA requirement is for 500 MHz. This requirement can easily be
accommodated in the lower half of the existing ISS allocation. Therefore
if an agenda item is really necessary the proposed frequency range in
the NTIA/RCS proposal should be changed to

22.55-23.05 GHz. This should be reflected in the text of the proposal
and the associated Resolution. A proposed modification to reflect this
is attached.

In summary, it appears that Iridium concerns could be addressed by
either providing for the requirement through a US domestic footnote or
by a small change in the suggested proposal by referencing only the
lower half of the ISS allocation in the 22.55-23.55 GHz band.

Attachment

**United States of America**

**Agenda Item 7.2** to recommend to the Council items for inclusion in
the agenda for the next WRC, and to give its views on the preliminary
agenda for the subsequent conference and possible agenda items for
future conferences, taking into account Resolution 802 (WRC-03);

**Background Information**

Add additional paragraph to this section:

The Intersatellite Service links of a non-GSO MSS satellite system
operate in the ISS allocation in the band 23.183-23.377 GHz. They have
been in operation for several years and increasingly being used as a
source of last communications is situations of emergencies and natural
disasters.

**Proposal:**

Modify the NTIA/RCS proposal as follows:

**USA/ / 1 MOD**

**RESOLUTION 803 (WRC-07)**

**Agenda for the 2010 World Radiocommunication Conference**

The World Radiocommunication Conference (Geneva, 2007)

**USA/ / 2 ADD**

**2.XB** to consider the addition of up to a 500 MHz primary space
research service (Earth-to-space) allocation in the 22.55-23.05 GHz
band, taking into account the results of ITU-R studies and recognizing
the need to protect existing systems in the band.

**Reasons: Allocating sufficient primary space research service
frequency spectrum in the 22.55-23.055 GHz band will provide the space
exploration** initiatives adequate uplink (Earth-to space) bandwidth as
a companion to the primary space research service space to Earth band at
25.5-27.0 GHz.

**USA/ / 3 ADD**

**RESOLUTION US XXX (WRC-07)**

**Use of the Band 22.55-23.05 GHz by the Space Research Service**

In considerings h), i), j), recognizings 1, 2, and 3, resolves 1, and
invites administrations, of the NTIA/RCS draft proposal in the
referenced resolution, the band 22.55-23.55 GHz should be changed to
22.55-23.05 GHz.

**[INFORMAL WORKING GROUP 2 (IWG-2)]{.underline}**

**[Space Services and High Altitude Platform Stations
(HAPS)]{.underline}**

**[DOCUMENT WAC/098(27.04.06)]{.underline}**

DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE

**WRC-07 Agenda Item 1.8 (Res. 145 (WRC-03) only):** *to consider the
results of ITU-R studies on technical sharing and regulatory provisions
for the application of high altitude platform stations operating in the
bands 27.5-28.35 GHz and 31‑31.3 GHz in response to Resolution **145**
**(WRC‑03),** and for high altitude platform stations operating in the
bands 47.2-47.5 GHz and 47.9-48.2 GHz in response to Resolution **122
(Rev.WRC‑03)**;*

**ISSUE**: Identifying a common 300 MHz segment of the band
27.5-28.35 GHz, paired with the 300 MHz band at 31-31.3 GHz, for use by
HAPS in the countries listed in Nos. **5.537A** and **5.543A** or
countries in Region 2 planning provisional operation, taking into
account the requirements of other fixed-service systems and other
services, and resolving outstanding future conference related issues.

##### Resolution 145 (WRC-03)

\"Potential use of the bands 27.5-27.8 GHz and 31-31.3 GHz by high
altitude platform stations (HAPS) in the fixed service\"

**Background Information**:

**Resolution 145:** WRC-2000 decided to adopt provisions for the
operation of HAPS on a non-interfering/non-protected basis in the bands
27.5-28.35 and 31-31.3 GHz in Region 3, but did not allow operation in
the entire bands until studies could be completed to determine how best
to protect existing services in these and nearby frequency bands. WRC-03
further refined these provisions by deciding to limit HAPS operation to
300 MHz in a specified direction in each of these two bands, retaining
the requirement for HAPS to operate on a non-interfering/non-protected
basis in these 300 MHz segments, and adopting Resolution **145
(WRC-03)**, which created the possibility of allowing Region 2
administrations to advise the Radiocommunications Bureau of their intent
to implement HAPS systems within the bands 27.5-28.35 and 31-31.3 GHz.
Administrations intending to implement HAPS in these bands are to seek
the explicit agreement of concerned administrations in accordance with
*resolves* 4 of this Resolution.

Under Resolution **145 (WRC-03)**, the use of HAPS within the
fixed-service allocations within the 27.5-28.35 GHz and 31-31.3 GHz
bands must be limited to 300 MHz in each band, and is subject to the
condition that such use must not cause harmful interference to, nor
claim protection from, other stations of services operating in
accordance with the Table of Frequency Allocations of Article **5**.
Furthermore, the Resolution specifies that that the development of these
other services shall proceed without constraints by HAPS operating
pursuant to the Resolution. This Resolution also calls for the
identification of a common 300 MHz within the 27.5-28.35 GHz band for
use by HAPS. With respect to the band 31-31.3 GHz, Resolution **145
(WRC-03)** specifies that systems using HAPS in Region 2 in the band
31-31.3 GHz must not cause harmful interference to the radio astronomy
service having a primary allocation in the band 31.3-31.8 GHz, taking
into account the protection criterion given in Recommendation
ITU‑R RA.769. The Resolution contains limits on the level of unwanted
power density into the HAPS ground station antenna in the band
31.3-31.8 GHz in order to ensure the protection of satellite passive
services.

**Proposal**:

#### USA/1.8/A

#### MOD

**5.537A** In Bhutan, Korea (Rep. of), the Russian Federation,
Indonesia, Iran (Islamic Republic of), Japan, Kazakhstan, Lesotho,
Malaysia, Maldives, Mongolia, Myanmar, Uzbekistan, Pakistan, the
Philippines, Kyrgyzstan, the Dem. People's Rep. of Korea, Sri Lanka,
Thailand and Viet Nam, the allocation to the fixed service in the
band 27.5-2[7.8~~8~~]{.underline}~~.35 ~~GHz may also be used by high
altitude platform stations (HAPS). ~~The use of HAPS within the
band 27.5-28.35 GHz is limited, within the territory of the countries
listed above, to a single 300 MHz sub‑band.~~ Such use of 300 MHz of the
fixed-service allocation by HAPS in the above countries is further
limited to operation in the HAPS-to-ground direction and shall not cause
harmful interference to, nor claim protection from, other types of
fixed-service systems or other co-primary services. Furthermore, the
development of these other services shall not be constrained by HAPS.
See Resolution **145 ([Rev.]{.underline}WRC‑0[7~~3~~]{.underline})**.

**Reason:** WRC-03 called for the identification of a common 300 MHz
band, within the 27.5-28.35 GHz band, for use by HAPS in those countries
wishing to implement such service. Such identification will help to ease
the implementation and harmonization of HAPS in those countries.
Identifying the lowest 300 MHz segment for potential use by HAPS
maximizes the amount of contiguous FSS spectrum in the 27.5-30.0 GHz
band that would not be constrained domestically in any way as a
consequence of any potential use of the band by HAPS.

#### USA/1.8/B

#### MOD

**5.543A** In Bhutan, Korea (Rep. of), the Russian Federation,
Indonesia, Iran (Islamic Republic of), Japan, Kazakhstan, Lesotho,
Malaysia, Maldives, Mongolia, Myanmar, Uzbekistan, Pakistan, the
Philippines, Kyrgyzstan, the Dem. People's Rep. of Korea, Sri Lanka,
Thailand and Viet Nam, the allocation to the fixed service in the
band 31-31.3 GHz may also be used by systems using high altitude
platform stations (HAPS) in the ground-to-HAPS direction. The use of the
band 31-31.3 GHz by systems using HAPS is limited to the territory of
the countries listed above and shall not cause harmful interference to,
nor claim protection from, other types of fixed-service systems, systems
in the mobile service and systems operated under No. **5.545**.
Furthermore, the development of these services shall not be constrained
by HAPS. Systems using HAPS in the band 31-31.3 GHz shall not cause
harmful interference to the radio astronomy service having a primary
allocation in the band 31.3-31.8 GHz, taking into account the protection
criterion as given in Recommendation ITU‑R RA.769. In order to ensure
the protection of satellite passive services, the level of unwanted
power density into a HAPS ground station antenna in the band
31.3-31.8 GHz shall be limited to −106 dB(W/MHz) under clear-sky
conditions, and may be increased up to ‑100 dB(W/MHz) under rainy
conditions to take account of rain attenuation, provided the effective
impact on the  passive satellite does not exceed the impact under clear
sky conditions given above. See Resolution **145**
(**[Rev.]{.underline}WRC-0[7]{.underline}~~3~~**)
(WRC-0[7]{.underline}~~3~~)

**Reason:** Consequential to the changes to Resolution **145** in
**USA/1.8/C**

#### USA/1.8/C

#### MOD

RESOLUTION 145 ([Rev.]{.underline}WRC-[07~~3~~]{.underline})

Potential use of the bands 27.5-2[7.8~~8~~]{.underline}~~.35~~ GHz and
31-31.3 GHz\
by high altitude platform stations (HAPS)\
in the fixed service

The World Radiocommunication Conference (Geneva,
200[7~~3~~]{.underline}),

considering

*a)* that WRC‑97 made provision for the operation of HAPS, also known as
stratospheric repeaters, within a 2 × 300 MHz portion of the
fixed-service allocation in the bands 47.2-47.5 GHz and 47.9-48.2 GHz;

*b)* that WRC‑97 adopted No. **4.15A** specifying that transmissions to
or from HAPS shall be limited to the bands specifically identified in
Article **5**;

*c)* that at WRC‑2000, several countries in Region 3 and one country in
Region 1 expressed a need for a lower frequency band for HAPS due to the
excessive rain attenuation that occurs at 47 GHz in these countries;

*d)* that ~~at the present Conference,~~ [some]{.underline} countries in
Region 2 [have]{.underline} also expressed an interest in using a
frequency range lower than those referred to in *considering a)*;

*e)* that, in order to accommodate the need expressed by the countries
referred to in *considering c)*, WRC‑2000 adopted Nos. **5.537A** and
**5.543A**, which were modified at [WRC-03 and then again at
WRC-07]{.underline} ~~this Conference~~ to permit the use of HAPS in the
fixed service ~~within 300 MHz of spectrum~~ in the band
27.5-2[7.8~~8~~]{.underline}~~.35~~ GHz and in the band 31-31.3 GHz in
certain Region 3 countries and in one Region 1 country on a non-harmful
interference, non-protection basis;

*f)* that the bands 27.5-2[7.8~~8~~]{.underline}~~.35~~ GHz and 31-31.3
GHz are already heavily used or planned to be used by a number of
different services and a number of other types of applications in the
fixed service;

*g)* that while the decision to deploy HAPS can be taken on a national
basis, such deployment may affect neighbouring administrations,
particularly in small countries;

*h)* that the 31.3-31.8 GHz band is allocated to the radio astronomy,
Earth exploration-satellite (passive) and space research (passive)
services, and that [WRC-03]{.underline} ~~this Conference~~ amended
No.** 5.543A** to specify signal levels that would protect satellite
passive services and radio astronomy stations;

*i)* that ITU‑R has conducted studies dealing with sharing between
systems using HAPS in the fixed service and other types of systems in
the fixed service in the bands 27.5-2[7.8~~8~~]{.underline}~~.35~~ GHz
and 31-31.3 GHz leading to Recommendation ITU‑R F.1609;

*j)* that results of some ITU‑R studies indicate that, in the bands
27.5-2[7.8~~8~~]{.underline}~~.35~~ GHz and 31-31.3 GHz, sharing between
fixed-service systems using HAPS and other conventional fixed-service
systems in the same area will require appropriate interference
mitigation techniques to be developed and implemented;

*k)* that ITU‑R has conducted studies dealing with compatibility between
systems using HAPS and the passive services in the 31.3-31.8 GHz band
leading to Recommendations ITU‑R F.1570 and ITU‑R F.1612;

*l)* that ITU‑R has produced Recommendation ITU‑R SF.1601 containing a
methodology for evaluating interference from the fixed-service system
using HAPS into GSO FSS systems in the band
27.5-2[7.8~~8~~]{.underline}~~.35 ~~GHz ~~in order to facilitate further
studies~~;

*m)* that HAPS technical ~~and regulatory~~ issues should continue to be
studied in order to determine appropriate measures for protecting the
fixed service and other co-primary services in the band
27.5-2[7.8~~8~~]{.underline}~~.35~~ GHz;

~~*n)* that pending the completion of studies, administrations in Region
2 may wish to consider deployment of HAPS systems in the fixed service
within 300 MHz of spectrum at 27.5-28.35 GHz and in 300 MHz of spectrum
at 31-31.3 GHz and to have some provisional means by which to authorize
such use of HAPS in their territories,~~

~~noting~~

~~that systems using HAPS may operate in the bands 27.5-28.35 GHz and
31-31.3 GHz under No. **4.4**,~~

resolves

~~1 to invite WRC‑07 to review the results of the studies specified
below and consider appropriate refinement of the regulatory provisions
for the use of HAPS within the bands 27.5-28.35 GHz and 31-31.3 GHz;~~

[1]{.underline}~~2~~ that, notwithstanding No. **4.15A**, in Region 2
the use of HAPS within the fixed-service allocations within the
27.5-2[7.8~~8~~]{.underline}~~.35~~ GHz and 31-31.3 GHz bands shall ~~be
limited, pending the completion of the studies specified in *invites
ITU‑R* 1 below, to 300 MHz in each band, that such use shall~~ not cause
harmful interference to, nor claim protection from, other stations of
services operating in accordance with the Table of Frequency Allocations
of Article **5**, and, further, that the development of these other
services shall proceed without constraints by HAPS operating pursuant to
this Resolution;

[2]{.underline}~~3~~ that~~, pursuant to *resolves* 2 above,~~ any use
by HAPS of the fixed-service allocation at
27.5-2[7.8~~8~~]{.underline}~~.35~~ GHz [pursuant to *resolves* 1
above]{.underline} shall be limited to operation in the HAPS-to-ground
direction, and that any use by HAPS of the fixed-service allocation at
31-31.3 GHz shall be limited to operation in the ground-to-HAPS
direction;

[3]{.underline}~~4~~ that~~, on a provisional basis,~~ the
administrations listed in Nos. **5.537A** and **5.543A** and those
administrations in Region 2 which intend to implement systems using HAPS
in the fixed service in the bands 27.5-2[7.8~~8~~]{.underline}~~.35~~
GHz and 31-31.3 GHz shall seek explicit agreement of concerned
administrations with regard to their primary services to ensure that the
conditions in Nos. **5.537A, 5.543A**, *resolves* [1]{.underline}~~2~~
and *resolves* [4]{.underline}~~5~~ are met;

[4]{.underline}~~5~~ that systems using HAPS in the band 31-31.3 GHz, in
accordance with *resolves *[1]{.underline}~~2~~ above, shall not cause
harmful interference to the radio astronomy service having a primary
allocation in the band 31.3-31.8 GHz, taking into account the protection
criterion given in Recommendation ITU‑R RA.769. In order to ensure the
protection of satellite passive services, the level of unwanted power
density into the HAPS ground station antenna in the band 31.3-31.8 GHz
shall be limited to --106 dB(W/MHz) under clear-sky conditions and may
be increased up to −100 dB(W/MHz) under rainy conditions to take account
of rain attenuation, provided that effective impact on the passive
satellite does not exceed the impact under clear-sky conditions as given
above,

invites ITU‑R

~~1 to continue to conduct studies, as a matter of urgency, and taking
into account the requirements of other fixed-service systems and other
services, on the feasibility of identifying a suitable and preferably a
common 300 MHz segment of the band 27.5-28.35 GHz paired with the
300 MHz band at 31-31.3 GHz, for use by HAPS in the countries listed in
Nos. **5.537A** and **5.543A** or countries in Region 2 planning
provisional operation;~~

[1]{.underline}~~2~~ to develop, one or more ITU‑R Recommendations,
technical sharing criteria or HAPS system design conditions that are
necessary to ensure that HAPS applications in the fixed service operate
successfully on a non-harmful interference, non-protected basis in the
bands 27.5-2[7.8~~8~~]{.underline}~~.35 ~~GHz and 31-31.3 GHz;

[2]{.underline}~~3~~ to complete studies on the interference criteria
and methodology for evaluating interference from the downlink
(HAPS-to-ground direction) of systems using HAPS to the uplink of the
GSO satellite networks in the FSS within the band
27.5-2[7.8~~8~~]{.underline}~~.35~~ GHz, taking into account
Recommendation ITU‑R SF.1601 for the situations referred to in
*considering l)*;

~~4 to study the regulatory provisions that might be needed in order to
address those cases where the deployment of HAPS in the fixed service in
the bands 27.5-28.35 GHz and 31-31.3 GHz in the territory of one
administration may affect other administrations;~~

[3]{.underline}~~5~~ to continue to carry out studies on the appropriate
interference mitigation techniques for the situations referred to in
*considering j)*,

*invites administrations,*

to advise the Radiocommunications Bureau of their intention to implement
HAPS systems within the band 27.5-2[7.8~~8~~]{.underline}~~.35~~ GHz and
in the band 31-31.3 GHz, whether in countries listed in Nos. **5.537A**
and **5.543A** or in accordance with *resolves [1]{.underline}*~~2~~,
and to specify the [technical characteristics of the systems they intend
to implement ~~frequency bands (up to 300 MHz each with the 27.5-28.35
GHz and 31-31.3 GHz bands) they intend to use for such
systems,~~]{.underline}

*instructs the Radiocommunications Bureau,* to publish in the
International Frequency Information Circular (BR IFIC) a list of
administrations who have so advised, and to publish the information on
HAPS implementation received from administrations which intend to
implement systems using HAPS in the fixed service in the bands
27.5-2[7.8~~8~~]{.underline}~~.35 ~~GHz and 31-31.3 GHz.

**Reason:** Changes to frequency ranges throughout, deletion of *invites
1,* and other minor changes are consequential to proposal **USA/1.8/A**.
Deletion of *noting* is made recognizing that this is a simple statement
of fact. Deletion of *invites 4* is made recognizing the retention of
old *resolves 4,* now *resolves 3*. Changes to *invites administrations*
are proposed to clarify that administrations are to supply technical
details of their systems along with an indication of their intention to
implement HAPS in these frequency bands.

**[Document WAC/099(27.04.06):]{.underline}**

## DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE {#draft-proposal-for-the-work-of-the-conference-1 .unnumbered}

**Agenda Item 1.12**: to consider possible changes in response to
Resolution **86 (Rev. Marrakesh, 2002)** of the Plenipotentiary
Conference: "Advance publication, coordination, notification and
recording procedures for frequency assignments pertaining to satellite
networks" in accordance with Resolution **86 (WRC-03)**;

***Coordination of the radionavigation-satellite service
(space-to-space) in the bands 1 215-1 300 MHz and 1 559-1 610 MHz***

**Background Information**: The scope and criteria to be used for the
implementation of Resolution **86 (Rev. Marrakesh, 2002)** of the
Plenipotentiary Conference by future world radiocommunication
conferences (WRCs) is established in Resolution **86 (WRC‑03)**.
*Resolves 1* of Resolution **86 (WRC-03)** relates to the consideration
of proposals dealing with deficiencies in the advance publication,
coordination and notification procedures of the Radio Regulations for
space services, and Resolves 2 relates to consideration of proposals
intended to transform the content of the Rules of Procedure into
regulatory text.

WRC-2000 added the space-to-space direction to the existing
radionavigation-satellite service (RNSS) (space-to-Earth) allocations in
the bands 1 215-1 300 MHz and 1 559-1 610 MHz, along with footnote
**5.329A**. WRC-03 added footnote **5.328B**, which applied coordination
between two non-GSO RNSS systems and between non-GSO and GSO RNSS
systems in the bands 1 164-1 300 MHz, 1 559-1 610 MHz and 5 010-5 030
MHz under Nos. **9.12**, **9.12A** and **9.13** after 1 January 2005,
without specifying direction (i.e., space-to-Earth or space-to-space).
[Coordination between GSO RNSS systems in the same bands (space-to-Earth
and space-to-space) is covered by No. **9.7**, again without specifying
direction (i.e., space-to-Earth or space-to-space).]{.underline}

No. **9.11A** applies the coordination provisions of Nos. **9.12** to
**9.16** where the requirement to coordinate is included in a footnote
to the Table of Frequency Allocations referring to No. **9.11A**. Since
WRC-2000, the Rules of Procedure (RoP), issued by the Radio Regulations
Board (RRB), rather than the Radio Regulations have defined the services
and frequency bands for which the coordination procedure under
No. **9.11A** is required. The RRB considered the application of
No. **9.11A** to the bands given in No. **5.329A** (i.e., 1 215-1 300
and 1 559-1 610 MHz ) and interpreted the Regulations as excluding RNSS
(space-to-space) assignments in the bands given in No. **5.329A** from
any obligation to coordinate with other services and with RNSS
(space-to-Earth), but as obliging these RNSS (space-to-space)
assignments to coordinate with each other.

In addition, many RNSS (space-to-space) network assignments are
receive-only in the bands 1215-1 300 MHz and 1 559-1 610 MHz. Resolution
**610 (WRC-03)**, as referenced in No. **5.328B**, requires
administrations to provide evidence of binding agreements for the
manufacture, procurement, and launch of RNSS systems and networks. This
resolution was intended to aid bilateral coordination between
transmitting RNSS systems and networks by ensuring such systems are
either in operation or in the process of being implemented. Requiring
Resolution **610 (WRC-03)** data for receiving space stations is
unnecessary.

Therefore, modifications to No. **5.329A** and No. **5.328B** are needed
to reflect the RRB decision that requires RNSS (space-to-space) to
coordinate only with other RNSS (space-to-space) but not with other
services or with RNSS (space-to-Earth), and to remove Resolution **610
(WRC-03)** obligations from RNSS receiving space stations.
[Additionally, to ensure that the obligation on RNSS (space-to-space)
networks under No. **5.329A** is also adequately reflected for
geostationary RNSS (space-to-space) networks with respect to GSO RNSS
(space-to-Earth) networks in the 1215-1300 MHz and 1559-1610 MHz bands
(a coordination scenario not encompassed by Nos. **9.12**, **9.12A**,
and **9.13)**, the modification to No. **5.328B** refers as well to No.
**9.7**.]{.underline}

**Proposal**

USA/ /1 MOD

**5.329A** Use of systems in the radionavigation-satellite service
(space-to-space) operating in the bands 1 215-1 300 MHz and 1 559-1 610
MHz is not intended to provide safety service applications, and shall
not impose any additional constraints on
~~other~~[radionavigation-satellite service
(space-to-Earth)]{.underline} systems or [on other]{.underline} services
operating in accordance with the Table.

**Reasons**: To clarify that "other systems" in No. **5.329A** refers to
the radionavigation-satellite service (space-to-Earth) and that
"services" refers to services other than the radionavigation-satellite
service.

**USA/ /2 MOD**

**5.328B** The use of the bands 1 164-1 300 MHz, 1 559-1 610 MHz and
5 010-5 030 MHz by systems and networks in the radionavigation-satellite
service for which complete coordination or notification information, as
appropriate, is received by the Radiocommunication Bureau after 1
January 2005 is subject to the application of the provisions of Nos.
**9.12**, **9.12A** and **9.13**. [As a consequence of No. **5.329A**,
for systems or networks in the radionavigation-satellite service
(space-to-space) in the bands 1 215-1 300 MHz and 1 559-1 610 MHz, the
application of the provisions of Nos. **9.7,**]{.underline} [**9.12**,
**9.12A** and **9.13** is only with respect to other systems or networks
in the radionavigation-satellite service (space-to-space).]{.underline}
Resolution **610 (WRC-03)** shall also apply[, but only to transmitting
space stations.]{.underline}

**Reasons:** To make it clear that the application of the coordination
procedure in Nos**. [9.7,]{.underline} 9.12**, **9.12A** and **9.13**
[to RNSS (space-to-space) systems and networks]{.underline} is only with
respect to other radionavigation-satellite service (space-to-space)
[systems and networks]{.underline} in the bands 1 215-1 300 MHz and
1 559-1 610 MHz and to limit the application of Resolution **610
(WRC-03)** to transmitting space stations.

**[Document WAC/100(27.04.06):]{.underline}**

**Comments of IWG-2 on Draft U.S. Proposal from Exec. Branch Agencies
on**

**WRC-07 Agenda Item 1.20 (Document IWG-2/057)**

IWG-2 has considered the satellite elements of Document IWG-2/057, which
contains draft U.S. proposal for WRC-07 Agenda Item 1.20 from the
Executive Branch agencies. It offers the following comments:

1\. IWG-2 endorses the [NOC]{.underline} proposals for the bands
22.55-23.55 GHz and 30-31 GHz (inter-satellite service and
fixed-satellite service (Earth-to-space), respectively) that are
contained in Proposals USA/ /5 and USA/ /7.

2\. IWG-2 also endorses the SUP proposal for Resolution738 that is
contained in Proposal

USA/ /13.

3\. IWG-2 observes that it is premature for the United States to assert,
in the background or in the reasons for any specific proposal, that
values proposed for the protection of the EESS (passive) are based on an
assessment of the impact on the relevant active service. To the extent
that any ITU-R studies have even considered the impact on the active
service involved -- a requirement of both Resolution 738 (WRC-03) and
the agenda item -- no conclusions have yet been reached. The FSS
industry is continuing to address this question with respect to the
operation of earth stations in the 47.2-50.2 GHz FSS (Earth-to-space)
band.

4\. IWG-2 is concerned with the proposal for mandatory limits on FSS
earth station emissions into adjacent bands. For protection against
unacceptable interference caused by unwanted emissions, mandatory limits
may be without precedent in the RRs. The language in the Exec. Branch
agencies' proposals for new footnotes (including 5.BBB, 5.DDD, and
5.EEE) would appear to invite BR examination under Art. 11 of compliance
with unwanted emission limits. Even if BR examination is not what the
Exec. Branch agencies contemplate, the mandatory nature of the wording
does not clearly exclude examination, and has serious negative
implications for the operation and evolution of advanced services in the
affected active service bands. In Document WAC/096, a redline of the
Exec. Branch agencies' proposal for Agenda Item 1.20 (Doc. IWG-2/057),
IWG-2 offers suggestions for the wording of the proposed footnotes that
aligns the notes generally with the approach taken by WRC-03 with
respect to protection of the radioastronomy service from detrimental
interference (see Resolution 739 (WRC-03), and removes any suggestion
that the footnotes would subject FSS and space operations earth stations
to BR examination. The language of the alternative text was coordinated
with IWG-1, which has responsibility for the terrestrial service
elements.

5\. With respect to the proposal for an unwanted emission value for FSS
earth stations operating in the 47.2-50.2 GHz band (proposed note 5.DDD
in Proposal USA/ /10), it appears that the derivation of the 30 dBW/200
MHz level that is stated as needed to protect the EESS (passive) from
unwanted emissions into the 50.2-50.4 GHz band may have been based on
unrealistic assumptions regarding FSS deployment and parameters.
Furthermore, it should be emphasized in the proposal that the protection
level is a clear-sky level, and that FSS earth stations in the 47.2-50.2
GHz band can increase their transmit power density by TBD dB, to
overcome fading conditions without causing additional impact to the EESS
(passive) systems. IWG-2 emphasizes that it has no difficulty with the
concept of identifying an unwanted emission level that would protect the
EESS (passive) service in that band; at this time, however, that level
remains under discussion between interested representatives from both
the active service and passive service communities.

6\. There is an inconsistency between the language of No. 5.DDD in
Proposal USA/ /10 and the proposed modification to Article 5 in Proposal
USA/ /9. The former indicates that the note is to apply only to the
49.44-50.2 GHz portion of the 47.2-50.2 GHz band in Region 1, while the
latter applies No. 5.DDD to the entire 47.2-50.2 GHz band. IWG-2
recommends that this discrepancy be resolved, but as long as No. 5.DDD
reflects a satisfactory resolution of the matter addressed in Comment
No. 4 above, IWG-2 takes no position on how this discrepancy should be
resolved.

**[INFORMAL WORKING GROUP 3 (IWG-3)]{.underline}**

**[IMT-2000 and 2.5 GHz Sharing Issues]{.underline}**

**Document WAC/101(27.04.06):**

**DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE**

**WRC-07 Agenda Item 1.9:** to review the technical, operational and
regulatory provisions applicable to the use of the band 2 500-2 690 MHz
by space services in order to facilitate sharing with current and future
terrestrial services without placing undue constraint on the services to
which the band is allocated;

**Background Information:** The band 2500-2690 MHz is allocated to both
terrestrial and satellite services on a primary basis. The terrestrial
services include the Mobile Services and the Fixed Services (including
IMT-2000). Both the terrestrial Mobile and Fixed Services have been
rapidly evolving to encompass high-speed mobile Internet services
requiring sensitive receiving equipment, which are highly susceptible to
interference.

The 2500-2690 MHz band is also allocated to the satellite services,
which include MSS (including GSO and non-GSO), BSS (including GSO and
non-GSO), and FSS. In WRC-03 the issue of sharing between terrestrial
services and NGSO BSS (Sound) in certain Region 3 countries was resolved
with the revision of pfd limits/coordination thresholds for NGSO BSS
(Sound) per Resolution 539. GSO BSS (Sound) limits/coordination
thresholds within these countries were also tightened for systems for
which complete Appendix **4** coordination information has been received
after 1 June 2005. Other than for these Region 3 countries the pfd
limits for BSS remained the same as given in Table 21-4.

In general, co-frequency sharing between the mobile-satellite service
(MSS) and terrestrial services has been found to be difficult in the
ITU-R studies. The sharing between the terrestrial services and the MSS
poses risks of harmful interference to both systems. In addition, it
will require large separation distance between terrestrial stations and
MSS earth stations in order to avoid harmful interference to both
stations. ITU-R Report M.2041 studied the feasibility of sharing between
MSS and MS for IMT-2000 and highlighted the incompatibility between
these two services on a co-frequency basis.

Both BSS and FSS are also allocated to the 2500-2690 MHz band and are
subject to the limits in Table 21-4. WRC-03 recognized the potential
sharing difficulty between the terrestrial and satellite services and
caused the formation of Joint Task Group 6-8-9 to study the issues
related to sharing.

JTG 6-8-9 has developed a methodology for estimating the satellite pfd
values required to protect terrestrial services. Based on this
methodology the USA has determined that pfd values at the surface of the
Earth produced by the emissions of MSS, BSS and FSS satellites of -136
dBW/m^2^/MHz for angles of arrival below 5^0^ and -122 dBW/m^2^/MHz for
angles of arrival greater than 25^0^ would yield tolerable levels of
interference to the Fixed and non IMT-2000 mobile services.

There are definite advantages to having a hard limit regulatory regime,
based on the specification of a power flux density mask in Article 21 of
the Radio Regulations. First it would ensure the long term safeguard of
terrestrial systems in the band 2 500-2 690 MHz from satellite
interference and could also be beneficial to the long-term development
of space services as a defined set of pfd limits would be known.
Additionally, a hard limit regime would result in no need for
coordination between administrations with terrestrial services and
administrations planning to deploy FSS, MSS or BSS systems.

However, there may be potential disadvantages to the hard limit regime
based on the PFD limits that are ultimately adopted by the WRC for both
the terrestrial and space services. The PFD limits adopted to protect
terrestrial networks may have the result that it would be difficult to
operate satellite networks in this frequency band. Alternatively, the
PFD limits adopted may have the result that it would be difficult to
operate terrestrial networks in this frequency band.

This proposal calls for assigning the above pfd values for MSS, FSS and
BSS in Article 21, Table 21-4, in order to provide long term protection
of terrestrial services in this band.

**Proposal**

USA/ /1 MOD

TABLE **21-4**     (WRC-03)

**Reasons:** Power flux density limits would facilitate FSS, BSS and MSS
sharing with current and future terrestrial services in the 2500-2690
MHz band as appropriate pfd limits would provide for long term safeguard
of terrestrial (e.g., FS and MS) systems in the band 2 500-2 690 MHz and
would also provide certainty to the space services as a defined set of
pfd limits would be known and extensive coordination with unknown
outcomes would not be needed. Studies have shown that a satellite pfd
value of -136 dBW/m^2^/MHz at angles below 5^0^, and -122 dBW/m^2^/MHz
at angles greater than 25^0^ yielded acceptable levels of interference
to terrestrial services in the 2500-2690 MHz band.

USA/ /2 MOD

**APPENDIX 5 (Rev. WRC-03)**

**ANNEX 1**

TABLE 5-2     (WRC-03)

+----------+----------+------------+-----+------------+-----+--------+
| F        | Ter      | Co         |     |            |     |        |
| requency | restrial | ordination |     |            |     |        |
| band\    | service\ | threshold  |     |            |     |        |
| (MHz)    | to be    | values     |     |            |     |        |
|          | p        |            |     |            |     |        |
|          | rotected |            |     |            |     |        |
+==========+==========+============+=====+============+=====+========+
|          |          | GSO space  |     | Non-GSO    |     |        |
|          |          | stations   |     | space      |     |        |
|          |          |            |     | stations   |     |        |
+----------+----------+------------+-----+------------+-----+--------+
|          |          | pfd\       |     | pfd\       |     | \%     |
|          |          | (per space |     | (per space |     | FDP\   |
|          |          | station)\  |     | station)\  |     | (in 1  |
|          |          | c          |     | c          |     | MHz)\  |
|          |          | alculation |     | alculation |     | (NOTE  |
|          |          | factors\   |     | factors\   |     | 1)     |
|          |          | (NOTE 2)   |     | (NOTE 2)   |     |        |
+----------+----------+------------+-----+------------+-----+--------+
|          |          | *P*        | *r  | *P*        | *r  |        |
|          |          |            | * d |            | * d |        |
|          |          |            | B/\ |            | B/\ |        |
|          |          |            | d   |            | d   |        |
|          |          |            | egr |            | egr |        |
|          |          |            | ees |            | ees |        |
+----------+----------+------------+-----+------------+-----+--------+
| ~~2 500  | ~~A      | ~~-- 146   | ~   | ~~-- 146   | ~   |        |
| -2 520~~ | nalogue\ | dB(W/m2)\  | ~0. | dB(W/m2)\  | ~0. |        |
|          | FS       | in 4 kHz   | 5~~ | in 4 kHz   | 5~~ |        |
|          | tel      | and\       |     | and\       |     |        |
|          | ephony~~ | -- 128     |     | -- 128     |     |        |
|          |          | dB(W/m2)\  |     | dB(W/m2)\  |     |        |
|          | ~~(NOTE  | in 1 MHz~~ |     | in 1 MHz~~ |     |        |
|          | 5)~~     |            |     |            |     |        |
+----------+----------+------------+-----+------------+-----+--------+
|          | ~~All    | ~~-- 128   | ~   | ~          | ~   | ~~25~~ |
|          | other    | dB(W/m2)\  | ~0. | ~-- 128 dB | ~0. |        |
|          | cases~~  | in 1 MHz~~ | 5~~ | (W/m2)\    | 5~~ |        |
|          |          |            |     | in 1 MHz~~ |     |        |
+----------+----------+------------+-----+------------+-----+--------+
| ~~2 520  | ~~A      | ~~-- 154   | ~~7 | ~~-- 146   | ~   |        |
| -2 535~~ | nalogue\ | dB(W/m2)\  | 5~~ | dB(W/m2)\  | ~0. |        |
|          | FS       | in 4 kHz   |     | in 4 kHz   | 5~~ |        |
|          | tel      | and\       |     | and\       |     |        |
|          | ephony~~ | -- 136     |     | -- 128     |     |        |
|          |          |  dB(W/m2)\ |     | dB(W/m2)\  |     |        |
|          | ~~(NOTE  | in 1 MHz~~ |     | in 1 MHz~~ |     |        |
|          | 5)~~     |            |     |            |     |        |
+----------+----------+------------+-----+------------+-----+--------+
|          | ~~All    | ~~-- 136   | ~~  | ~~-- 128   | ~   | ~~25~~ |
|          | other    | dB(W/m2)\  | 0.7 | dB(W/m2)\  | ~0. |        |
|          | cases~~  | in 1 MHz~~ | 5~~ | in 1 MHz~~ | 5~~ |        |
+----------+----------+------------+-----+------------+-----+--------+

**Reasons:** Consequential to adding pfd limit for MSS to Article 21,
Table 21-4 per USA/ /1. Limits on MSS pfd eliminate the need for
coordination with terrestrial systems in the band 2 500-2 535 MHz.

**Document WAC/102(27.04.06):**

To the WRC-07 Advisory Committee:

Attached please find two documents from IWG-3 related to Agenda Item 1.9
"to review the technical, operational and regulatory provisions
applicable to the use of the band 2 500-2 690 MHz by space services in
order to facilitate sharing with current and future terrestrial services
without placing undue constraint on the services to which the band is
allocated" of the 2007 to the World Radiocommunication Conference
(WRC-07).

After considerable debate, IWG-3 drafted IWG-3 Proposal for Agenda Item
1.9 presented in Document WAC/102A. Over the past several months, this
document was reviewed by the entire IWG-3 and modified to include the
concerns of some MSS companies, including New ICO, Globalstar and MSV.
The majority of IWG-3 members supported the resulting proposal. However,
IWG-3 was unable to reach full consensus as a minority of members from
the satellite community continued to object to the proposal.

The dissenting proposal from the satellite community is contained in
Proposal Document WAC/102B. This document was not extensively reviewed
by the IWG and only represents the views of those parties dissenting.

IWG-3 forwards the majority proposal and dissenting proposal to the
WRC-07 Advisory Committee for its consideration.

IWG-3 forwards the majority proposal and dissenting proposal to the
WRC-07 Advisory Committee for its consideration.

Sincerely,

Cecily A. Cohen

Chair, IWG-3

DOCUMENT WAC/102A(27.04.06)

## United States of America {#united-states-of-america .unnumbered}

## DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE {#draft-proposal-for-the-work-of-the-conference-2 .unnumbered}

**WRC-07 Agenda Item 1.9:** to review the technical, operational and
regulatory provisions applicable to the use of the band 2 500-2 690 MHz
by space services in order to facilitate sharing with current and future
terrestrial services without placing undue constraint on the services to
which the band is allocated;

**Background Information:** The band 2 500-2 690 MHz is allocated for
sharing by both terrestrial and satellite services. The terrestrial
services include the Mobile Services and the Fixed Services (including
IMT-2000). Both the terrestrial Mobile and Fixed Services have been
rapidly evolving to encompass high-speed mobile Internet services
requiring sensitive receiving equipment, which are highly susceptible to
interference.

Portions of the 2500-2690 MHz band are also allocated to the satellite
services, which include MSS, BSS (including GSO and non-GSO), and FSS.
At WRC-03 the issue of sharing between terrestrial services and NGSO BSS
(Sound) in certain Region 3 countries was resolved with the revision of
pfd limits for NGSO BSS (Sound) per Resolution 539. GSO BSS (Sound)
limits within these countries were also tightened for systems for which
complete Appendix **4** coordination information has been received after
1 June 2005. Other than for these Region 3 countries the BSS limits
remained the same as given in Table 21-4.

In general, co-frequency sharing between the mobile-satellite service
(MSS) and terrestrial services has been found to be difficult in the
ITU-R studies. The sharing between the terrestrial services and the MSS
poses risks of harmful interference to both systems. In addition,
sharing would require large separation distances between terrestrial
stations and MSS earth stations in order to avoid harmful interference
to both stations. ITU-R Report M.2041 studied the feasibility of sharing
between MSS and MS for IMT-2000 and highlighted the sharing difficulties
between these two services on a co-frequency, co-coverage basis. Per
Report M.2041, "When considering the sharing of the same frequency band
between the terrestrial component of IMT-2000 and the MSS, the detailed
analysis (see Annex 2) shows that such sharing is not feasible over the
same geographical area. Consequently, Radiocommunication Study Group 8
came to the conclusion that co-frequency sharing is not feasible for
networks operating in the same geographical area." Report M.2041 was
approved in SG8 with support from the USA.

Within Region 2 any satellite service launched will naturally overlap
many other Region 2 countries and may have the effect of interfering
with existing and planned terrestrial services within that band.
Administrations in Region 2 have indicated no plans to implement MSS
systems in the 2500-2690 MHz band. A number of Administrations in Region
2 have authorized terrestrial Mobile and Fixed services and several
other Region 2 Administrations have definite plans to introduce new
terrestrial Mobile and Fixed services in the 2500-2690 MHz band. (See
WP-8F questionnaire to administrations and summary in document
8F/TEMP/276).

In addition to the allocation of the 2500-2520 MHz and 2670-2690 MHz
band for MSS within Region 2, the bands 137-137.025 MHz, 148-150.05 MHz,
399.9-401 MHz, 406-406.1 MHz, 455-456 MHz, 459-460 MHz, 1518-1559 MHz,
1610-1660.5 MHz, 1668.4-1675 MHz, 1930-1970 MHz, 1980-2025 MHz,
2120-2200 MHz, 2483.5-2500 MHz, 14-14.5 GHz, 19.7-21.2 GHz, 29.5-31 GHz,
39.5-41 GHz, among others, are also allocated for MSS within Region 2.

Considering that:

\(1\) Administrations in Region 2 have indicated no plans to implement
MSS services in the 2500-2690 MHz band,

\(2\) Administrations in Region 2 have implemented or plan to implement
terrestrial Mobile and Fixed services in the 2500-2690 MHz band,

\(3\) Co-frequency sharing of the 2500-2690 MHz band between MSS and
terrestrial services threatens to cause interference to terrestrial
Mobile services systems,

\(4\) That there is other spectrum allocated for MSS within Region 2, (I
move to strike *considering*

the MSS allocation in Region 2 should be suppressed

**Proposal**

USA/ /1 MOD

ARTICLE 5

Frequency allocations

Section IV -- Table of Frequency Allocations

2 170-2 520 MHz

+----------------------+----------------------+-----------------------+
| **Allocation to      |                      |                       |
| services**           |                      |                       |
+----------------------+----------------------+-----------------------+
| **Region 1**         | **Region 2**         | **Region 3**          |
+----------------------+----------------------+-----------------------+
| **2 170-2 200**      |                      |                       |
| FIXED                |                      |                       |
|                      |                      |                       |
| MOBILE               |                      |                       |
|                      |                      |                       |
| MOBILE-SATELLITE     |                      |                       |
| (space-to-Earth)     |                      |                       |
| 5.351A               |                      |                       |
|                      |                      |                       |
| 5.388 5.389A 5.389F  |                      |                       |
| 5.392A               |                      |                       |
+----------------------+----------------------+-----------------------+
| **2 200-2 290**      |                      |                       |
| SPACE OPERATION      |                      |                       |
| (space-to-Earth)     |                      |                       |
| (space-to-space)     |                      |                       |
|                      |                      |                       |
| EARTH                |                      |                       |
| E                    |                      |                       |
| XPLORATION-SATELLITE |                      |                       |
| (space-to-Earth)     |                      |                       |
| (space-to-space)     |                      |                       |
|                      |                      |                       |
| FIXED                |                      |                       |
|                      |                      |                       |
| MOBILE 5.391         |                      |                       |
|                      |                      |                       |
| SPACE RESEARCH       |                      |                       |
| (space-to-Earth)     |                      |                       |
| (space-to-space)     |                      |                       |
|                      |                      |                       |
| 5.392                |                      |                       |
+----------------------+----------------------+-----------------------+
| **2 290-2 300**      |                      |                       |
| FIXED                |                      |                       |
|                      |                      |                       |
| MOBILE except        |                      |                       |
| aeronautical mobile  |                      |                       |
|                      |                      |                       |
| SPACE RESEARCH (deep |                      |                       |
| space)               |                      |                       |
| (space-to-Earth)     |                      |                       |
+----------------------+----------------------+-----------------------+
| **2 300-2 450**      | **2 300-2 450**      |                       |
|                      |                      |                       |
| FIXED                | FIXED                |                       |
|                      |                      |                       |
| MOBILE               | MOBILE               |                       |
|                      |                      |                       |
| Amateur              | RADIOLOCATION        |                       |
|                      |                      |                       |
| Radiolocation        | Amateur              |                       |
+----------------------+----------------------+-----------------------+
| 5.150 5.282 5.395    | 5.150 5.282 5.393    |                       |
|                      | 5.394 5.396          |                       |
+----------------------+----------------------+-----------------------+
| **2 450-2 483.5**    | **2 450-2 483.5**    |                       |
|                      |                      |                       |
| FIXED                | FIXED                |                       |
|                      |                      |                       |
| MOBILE               | MOBILE               |                       |
|                      |                      |                       |
| Radiolocation        | RADIOLOCATION        |                       |
|                      |                      |                       |
| 5.150 5.397          | 5.150 5.394          |                       |
+----------------------+----------------------+-----------------------+
| **2 483.5-2 500**    | **2 483.5-2 500**    | **2 483.5-2 500**     |
|                      |                      |                       |
| FIXED                | FIXED                | FIXED                 |
|                      |                      |                       |
| MOBILE               | MOBILE               | MOBILE                |
|                      |                      |                       |
| MOBILE-SATELLITE\    | MOBILE-SATELLITE\    | MOBILE-SATELLITE\     |
| (space-to-Earth)     | (space-to-Earth)     | (space-to-Earth)      |
| 5.351A               | 5.351A               | 5.351A                |
|                      |                      |                       |
| Radiolocation        | RADIOLOCATION        | RADIOLOCATION         |
|                      |                      |                       |
|                      | RADIODETERMINATION-\ | Radiodet              |
|                      | SATELLITE\           | ermination-satellite\ |
|                      | (space-to-Earth)     | (space-to-Earth)      |
|                      | 5.398                | 5.398                 |
+----------------------+----------------------+-----------------------+
| 5.150 5.371 5.397    | 5.150 5.402          | 5.150 5.400 5.402     |
| 5.398 5.399 5.400    |                      |                       |
| 5.402                |                      |                       |
+----------------------+----------------------+-----------------------+
| **2 500-2 520**      | **2 500-2 520**      | **2 500-2 520**       |
|                      |                      |                       |
| FIXED 5.409 5.410    | FIXED 5.409 5.411    | FIXED 5.409 5.411     |
| 5.411                |                      |                       |
|                      | FIXED-SATELLITE      | FIXED-SATELLITE       |
| MOBILE except        | (space-to-Earth)     | (space-to-Earth)      |
| aeronautical mobile  | 5.415                | 5.415                 |
| 5.384A               |                      |                       |
|                      | MOBILE except        | MOBILE except         |
| MOBILE-SATELLITE\    | aeronautical mobile  | aeronautical mobile   |
| (space-to-Earth)     | 5.384A               | 5.384A                |
| 5.351A 5.403         |                      |                       |
|                      | ~~MOBILE-SATELLITE   | MOBILE-SATELLITE      |
|                      | (space-to-Earth)     | (space-to-Earth)      |
|                      | 5.351A 5.403~~       | 5.351A 5.403          |
+----------------------+----------------------+-----------------------+
| 5.405 5.407 5.412    | 5.404 5.407 5.414    | 5.404 5.407 5.414     |
| 5.414                | 5.415A               | 5.415A                |
+----------------------+----------------------+-----------------------+

.

**Reasons:** Co-frequency, co-coverage sharing between MSS and
terrestrial Mobile services is not possible per ITU-R Report M.2041. As
stated in M.2041, "When considering the sharing of the same frequency
band between the terrestrial component of IMT-2000 and the MSS, the
detailed analysis (see Annex 2) shows that such sharing is not feasible
over the same geographical area. Consequently, Radiocommunication Study
Group 8 came to the conclusion that co-frequency sharing is not feasible
for networks operating in the same geographical area."

Administrations in Region 2 have indicated no plans to implement MSS
systems in the 2500-2690 MHz band. A number of Administrations in Region
2 have authorized terrestrial Mobile and Fixed services and several
other Region 2 Administrations have definite plans to introduce new
terrestrial Mobile and Fixed services in the 2500-2690 MHz band. (See
WP-8F questionnaire to administrations and summary in document
8F/TEMP/276). Considering that:

\(1\) Administrations in Region 2 have indicated no plans to implement
MSS networks in the 2500-2690 MHz band,

\(2\) Administrations in Region 2 have implemented or plan to implement
terrestrial Mobile and Fixed services in the 2500-2690 MHz band,

\(3\) Co-frequency sharing at 2500-2690 MHz between MSS and terrestrial
services threatens to cause interference to terrestrial Mobile services
systems.

\(4\) That there is other spectrum allocated for MSS within Region 2

the MSS allocation in Region 2 is suppressed.

USA/ /2 MOD

ARTICLE 5

Frequency allocations

Section IV -- Table of Frequency Allocations

2 520-2 700 MHz

+-----------------------+-----------------------+-----------------------+
| **Allocation to       |                       |                       |
| services**            |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Region 1**          | **Region 2**          | **Region 3**          |
+-----------------------+-----------------------+-----------------------+
| **2 520-2 655**       | **2 520-2 655**       | **2 520-2 535**       |
|                       |                       |                       |
| FIXED 5.409 5.410     | FIXED 5.409 5.411     | FIXED 5.409 5.411     |
| 5.411                 |                       |                       |
|                       | FIXED-SATELLITE\      | FIXED-SATELLITE\      |
| MOBILE except         | (space-to-Earth)      | (space-to-Earth)      |
| aeronautical\         | 5.415                 | 5.415                 |
| mobile 5.384A         |                       |                       |
|                       | MOBILE except         | MOBILE except         |
| BR                    | aeronautical\         | aeronautical\         |
| OADCASTING-SATELLITE\ | mobile 5.384A         | mobile 5.384A         |
| 5.413 5.416           |                       |                       |
|                       | BR                    | BR                    |
|                       | OADCASTING-SATELLITE\ | OADCASTING-SATELLITE\ |
|                       | 5.413 5.416           | 5.413 5.416           |
+-----------------------+-----------------------+-----------------------+
|                       |                       | 5.403 5.415A          |
+-----------------------+-----------------------+-----------------------+
|                       |                       | **2 535-2 655**       |
|                       |                       |                       |
|                       |                       | FIXED 5.409 5.411     |
|                       |                       |                       |
|                       |                       | MOBILE except         |
|                       |                       | aeronautical\         |
|                       |                       | mobile 5.384A         |
|                       |                       |                       |
|                       |                       | BR                    |
|                       |                       | OADCASTING-SATELLITE\ |
|                       |                       | 5.413 5.416           |
+-----------------------+-----------------------+-----------------------+
| 5.339 5.403 5.405     | 5.339 5.403 5.417C    | 5.339 5.417A 5.417B   |
| 5.412\                | 5.417D 5.418B 5.418C  | 5.417C 5.417D 5.418   |
| 5.417C 5.417D 5.418B  |                       | 5.418A 5.418B 5.418C  |
| 5.418C                |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **2 655-2 670**       | **2 655-2 670**       | **2 655-2 670**       |
|                       |                       |                       |
| FIXED 5.409 5.410     | FIXED 5.409 5.411     | FIXED 5.409 5.411     |
| 5.411                 |                       |                       |
|                       | FIXED-SATELLITE\      | FIXED-SATELLITE\      |
| MOBILE except         | (Earth-to-space)\     | (Earth-to-space)      |
| aeronautical\         | (space-to-Earth)      | 5.415                 |
| mobile 5.384A         | 5.347A 5.415          |                       |
|                       |                       | MOBILE except         |
| BR                    | MOBILE except         | aeronautical\         |
| OADCASTING-SATELLITE\ | aeronautical\         | mobile 5.384A         |
| 5.347A 5.413 5.416    | mobile 5.384A         |                       |
|                       |                       | B                     |
| Earth                 | BR                    | ROADCASTING-SATELLITE |
| e                     | OADCASTING-SATELLITE\ | 5.347A 5.413 5.416    |
| xploration-satellite\ | 5.347A 5.413 5.416    |                       |
| (passive)             |                       | Earth                 |
|                       | Earth                 | e                     |
| Radio astronomy       | e                     | xploration-satellite\ |
|                       | xploration-satellite\ | (passive)             |
| Space research        | (passive)             |                       |
| (passive)             |                       | Radio astronomy       |
|                       | Radio astronomy       |                       |
|                       |                       | Space research        |
|                       | Space research        | (passive)             |
|                       | (passive)             |                       |
+-----------------------+-----------------------+-----------------------+
| 5.149 5.412 5.420     | 5.149 5.420           | 5.149 5.420           |
+-----------------------+-----------------------+-----------------------+
| **2 670-2 690**       | **2 670-2 690**       | **2 670-2 690**       |
|                       |                       |                       |
| FIXED 5.409 5.410     | FIXED 5.409 5.411     | FIXED 5.409 5.411     |
| 5.411                 |                       |                       |
|                       | FIXED-SATELLITE\      | FIXED-SATELLITE\      |
| MOBILE except         | (Earth-to-space)\     | (Earth-to-space)      |
| aeronautical mobile   | (space-to-Earth)      | 5.415                 |
| 5.384A                | 5.347A 5.415          |                       |
|                       |                       | MOBILE except         |
| MOBILE-SATELLITE\     | MOBILE except         | aeronautical\         |
| (Earth-to-space)      | aeronautical\         | mobile 5.384A         |
| 5.351A                | mobile 5.384A         |                       |
|                       |                       | MOBILE-SATELLITE\     |
| Earth                 | ~~MOBILE-SATELLITE\   | (Earth-to-space)      |
| e                     | (Earth-to-space)      | 5.351A                |
| xploration-satellite\ | 5.351A~~              |                       |
| (passive)             |                       | Earth                 |
|                       | Earth                 | e                     |
| Radio astronomy       | e                     | xploration-satellite\ |
|                       | xploration-satellite\ | (passive)             |
| Space research        | (passive)             |                       |
| (passive)             |                       | Radio astronomy       |
|                       | Radio astronomy       |                       |
|                       |                       | Space research        |
|                       | Space research        | (passive)             |
|                       | (passive)             |                       |
+-----------------------+-----------------------+-----------------------+
| 5.149 5.412 5.419     | 5.149 5.419 5.420     | 5.149 5.419 5.420     |
| 5.420                 |                       | 5.420A                |
+-----------------------+-----------------------+-----------------------+
| **2 690-2 700** EARTH |                       |                       |
| EXPLORATION-SATELLITE |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| RADIO ASTRONOMY       |                       |                       |
|                       |                       |                       |
| SPACE RESEARCH        |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| 5.340 5.422           |                       |                       |
+-----------------------+-----------------------+-----------------------+

**Reasons:** Co-frequency, co-coverage sharing between MSS and
terrestrial Mobile services is not possible per ITU-R Report M.2041. As
stated in M.2041, "When considering the sharing of the same frequency
band between the terrestrial component of IMT-2000 and the MSS, the
detailed analysis (see Annex 2) shows that such sharing is not feasible
over the same geographical area. Consequently, Radiocommunication Study
Group 8 came to the conclusion that co-frequency sharing is not feasible
for networks operating in the same geographical area."

Administrations in Region 2 have indicated no plans to implement MSS
systems in the 2500-2690 MHz band. A number of Administrations in Region
2 have authorized terrestrial Mobile and Fixed services and several
other Region 2 Administrations have definite plans to introduce new
terrestrial Mobile and Fixed services in the 2500-2690 MHz band. (See
WP-8F questionnaire to administrations and summary in document
8F/TEMP/276). Considering that:

\(1\) Administrations in Region 2 have indicated no plans to implement
MSS services in the 2500-2690 MHz band,

\(2\) Administrations in Region 2 have implemented or plan to implement
terrestrial Mobile and Fixed services in the 2500-2690 MHz band,

\(3\) Co-frequency sharing at 2500-2690 MHz between MSS and terrestrial
services threatens to cause interference to terrestrial Mobile services,

\(4\) That there is other spectrum allocated for MSS within Region 2,

the MSS allocation in Region 2 is suppressed.

**DOCUMENT WAC/102B(27.04.06)**

## United States of America {#united-states-of-america-1 .unnumbered}

## DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE {#draft-proposal-for-the-work-of-the-conference-3 .unnumbered}

**WRC-07 Agenda Item 1.9:** to review the technical, operational and
regulatory provisions applicable to the use of the band 2 500-2 690 MHz
by space services in order to facilitate sharing with current and future
terrestrial services without placing undue constraint on the services to
which the band is allocated;

**Background Information:** The band 2 500-2 690 MHz is allocated on a
Primary basis to both terrestrial and satellite services. The
terrestrial services include the Mobile Services and the Fixed Services
(including IMT-2000). Both the terrestrial Mobile and Fixed Services
have been rapidly evolving to encompass high-speed mobile Internet
services requiring sensitive receiving equipment, which are highly
susceptible to interference.

Portions of the 2500-2690 MHz band are also allocated to satellite
services, which include MSS, BSS (including GSO and non-GSO), and FSS.
The bands 2500-2520 MHz and 2670-2690 MHz are allocated to the MSS on a
Primary basis and have been identified for use by the satellite
component of IMT-2000 and beyond. As part of this identification, it was
noted that, "in the long term" these bands might also be used for the
terrestrial component of IMT-2000 and beyond (See Res.225).

At WRC-03 the issue of sharing between terrestrial services and NGSO BSS
(Sound) in certain Region 3 countries was resolved with the revision of
pfd limits for NGSO BSS (Sound) per Resolution 539. GSO BSS (Sound)
limits within these countries were also tightened for systems for which
complete Appendix **4** coordination information has been received after
1 June 2005. Other than for these Region 3 countries the BSS limits
remained the same as given in Table 21-4.

In general, co-frequency sharing between the mobile-satellite service
(MSS) and terrestrial services has been found to be difficult in the
ITU-R studies. The sharing between the terrestrial services and the MSS
poses risks of harmful interference to both systems. In addition,
sharing would require large separation distances between terrestrial
stations and MSS earth stations in order to avoid harmful interference
to both Services.

Large separation distances could be available in large countries where
citizens without the benefit of terrestrial infrastructure could rely on
MSS systems to provide vital communications services including Internet
access. The lack of terrestrial infrastructure in developing countries
and sparsely populated areas also points up the need for Services such
as the MSS.

ITU-R Report M.2041 studied the feasibility of sharing between MSS and
MS for IMT-2000 and highlighted the sharing difficulties between these
two services on a co-frequency, co-coverage basis. Report M.2041, came
to the conclusion that sharing is not feasible over the same
geographical area. Consequently, Radiocommunication Study Group 8 came
to the conclusion that co-frequency sharing is not feasible for networks
operating in the same geographical area," even though Report M.2041 was
never vetted by ITU-R Working Party 8D.

Within Region 2, the 2005 hurricane season was marked by massive
destruction that included terrestrial communications infrastructure.
Entire regions in the states of Florida, Alabama, Mississippi, Louisiana
and Texas were laid waste by hurricanes Katrina and Rita. MSS systems
provided lifesaving communications for first responders and government
agencies over wide spread areas where there were no terrestrial means.
Had government officials availed themselves of MSS communications
equipment before the storms and equipped their first responders
continuity of emergency communications could have been maintained. Plans
have been announced for first responders to be equipped with MSS
equipment to provide alternative communications when terrestrial means
fail. As much of Region 2 is prone to tropical storms, other countries
may wish to follow the example of the USA and equip emergency personnel
with MSS equipment.

In view of the outstanding performance provided by MSS systems during
the past hurricane season, it seems foolhardy to advocate the complete
elimination of an allocation for this Service in Region 2. Allocation to
the MSS on a Secondary basis would provide a regulatory solution to
interference while still maintaining the option of the MSS in areas
where no terrestrial infrastructure exists.

**Proposal**

USA/ /1 MOD

ARTICLE 5

Frequency allocations

Section IV -- Table of Frequency Allocations

2 500-2 520 MHz

+----------------------+----------------------+-----------------------+
| **Allocation to      |                      |                       |
| services**           |                      |                       |
+----------------------+----------------------+-----------------------+
| **2 500-2 520**      | **2 500-2 520**      | **2 500-2 520**       |
|                      |                      |                       |
| FIXED 5.409 5.410    | FIXED 5.409 5.411    | FIXED 5.409 5.411     |
| 5.411                |                      |                       |
|                      | FIXED-SATELLITE      | FIXED-SATELLITE       |
| MOBILE except        | (space-to-Earth)     | (space-to-Earth)      |
| aeronautical mobile  | 5.415                | 5.415                 |
| 5.384A               |                      |                       |
|                      | MOBILE except        | MOBILE except         |
| MOBILE-SATELLITE\    | aeronautical mobile  | aeronautical mobile   |
| (space-to-Earth)     | 5.384A               | 5.384A                |
| 5.351A 5.403         |                      |                       |
|                      | ~~MOBILE-SATELLITE~~ | MOBILE-SATELLITE      |
|                      |                      | (space-to-Earth)      |
|                      | [Mobile-Sa           | 5.351A 5.403          |
|                      | tellite]{.underline} |                       |
|                      |                      |                       |
|                      | (space-to-Earth)     |                       |
|                      | 5.351A 5.403         |                       |
+----------------------+----------------------+-----------------------+
| 5.405 5.407 5.412    | 5.404 5.407 5.414    | 5.404 5.407 5.414     |
| 5.414                | 5.415A               | 5.415A                |
+----------------------+----------------------+-----------------------+

**Reasons:** In general, co-frequency sharing between the
mobile-satellite service (MSS) and terrestrial services has been found
to be difficult in the ITU-R studies. The sharing between the
terrestrial services and the MSS poses risks of harmful interference to
both systems. In addition, sharing would require large separation
distances between terrestrial stations and MSS earth stations in order
to avoid harmful interference to both Services.

Large separation distances could be available in large countries where
citizens without the benefit of terrestrial infrastructure could rely on
MSS systems to provide vital communications services including Internet
access. The lack of terrestrial infrastructure in developing countries
and sparsely populated areas also points up the need for Services like
MSS. The use of large separation distances could permit the use of both
terrestrial Services and the MSS.

Allocation to the MSS on a Secondary basis would provide a regulatory
solution to interference while still maintaining the option of the MSS
in areas where no terrestrial infrastructure exists.

USA/ /2 MOD

ARTICLE 5

Frequency allocations

Section IV -- Table of Frequency Allocations

2 520-2 700 MHz

+-----------------------+-----------------------+-----------------------+
| **Allocation to       |                       |                       |
| services**            |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Region 1**          | **Region 2**          | **Region 3**          |
+-----------------------+-----------------------+-----------------------+
| **2 520-2 655**       | **2 520-2 655**       | **2 520-2 535**       |
|                       |                       |                       |
| FIXED 5.409 5.410     | FIXED 5.409 5.411     | FIXED 5.409 5.411     |
| 5.411                 |                       |                       |
|                       | FIXED-SATELLITE\      | FIXED-SATELLITE\      |
| MOBILE except         | (space-to-Earth)      | (space-to-Earth)      |
| aeronautical\         | 5.415                 | 5.415                 |
| mobile 5.384A         |                       |                       |
|                       | MOBILE except         | MOBILE except         |
| BR                    | aeronautical\         | aeronautical\         |
| OADCASTING-SATELLITE\ | mobile 5.384A         | mobile 5.384A         |
| 5.413 5.416           |                       |                       |
|                       | BR                    | BR                    |
|                       | OADCASTING-SATELLITE\ | OADCASTING-SATELLITE\ |
|                       | 5.413 5.416           | 5.413 5.416           |
+-----------------------+-----------------------+-----------------------+
|                       |                       | 5.403 5.415A          |
+-----------------------+-----------------------+-----------------------+
|                       |                       | **2 535-2 655**       |
|                       |                       |                       |
|                       |                       | FIXED 5.409 5.411     |
|                       |                       |                       |
|                       |                       | MOBILE except         |
|                       |                       | aeronautical\         |
|                       |                       | mobile 5.384A         |
|                       |                       |                       |
|                       |                       | BR                    |
|                       |                       | OADCASTING-SATELLITE\ |
|                       |                       | 5.413 5.416           |
+-----------------------+-----------------------+-----------------------+
| 5.339 5.403 5.405     | 5.339 5.403 5.417C    | 5.339 5.417A 5.417B   |
| 5.412\                | 5.417D 5.418B 5.418C  | 5.417C 5.417D 5.418   |
| 5.417C 5.417D 5.418B  |                       | 5.418A 5.418B 5.418C  |
| 5.418C                |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **2 655-2 670**       | **2 655-2 670**       | **2 655-2 670**       |
|                       |                       |                       |
| FIXED 5.409 5.410     | FIXED 5.409 5.411     | FIXED 5.409 5.411     |
| 5.411                 |                       |                       |
|                       | FIXED-SATELLITE\      | FIXED-SATELLITE\      |
| MOBILE except         | (Earth-to-space)\     | (Earth-to-space)      |
| aeronautical\         | (space-to-Earth)      | 5.415                 |
| mobile 5.384A         | 5.347A 5.415          |                       |
|                       |                       | MOBILE except         |
| BR                    | MOBILE except         | aeronautical\         |
| OADCASTING-SATELLITE\ | aeronautical\         | mobile 5.384A         |
| 5.347A 5.413 5.416    | mobile 5.384A         |                       |
|                       |                       | B                     |
| Earth                 | BR                    | ROADCASTING-SATELLITE |
| e                     | OADCASTING-SATELLITE\ | 5.347A 5.413 5.416    |
| xploration-satellite\ | 5.347A 5.413 5.416    |                       |
| (passive)             |                       | Earth                 |
|                       | Earth                 | e                     |
| Radio astronomy       | e                     | xploration-satellite\ |
|                       | xploration-satellite\ | (passive)             |
| Space research        | (passive)             |                       |
| (passive)             |                       | Radio astronomy       |
|                       | Radio astronomy       |                       |
|                       |                       | Space research        |
|                       | Space research        | (passive)             |
|                       | (passive)             |                       |
+-----------------------+-----------------------+-----------------------+
| 5.149 5.412 5.420     | 5.149 5.420           | 5.149 5.420           |
+-----------------------+-----------------------+-----------------------+
| **2 670-2 690**       | **2 670-2 690**       | **2 670-2 690**       |
|                       |                       |                       |
| FIXED 5.409 5.410     | FIXED 5.409 5.411     | FIXED 5.409 5.411     |
| 5.411                 |                       |                       |
|                       | FIXED-SATELLITE\      | FIXED-SATELLITE\      |
| MOBILE except         | (Earth-to-space)\     | (Earth-to-space)      |
| aeronautical mobile   | (space-to-Earth)      | 5.415                 |
| 5.384A                | 5.347A 5.415          |                       |
|                       |                       | MOBILE except         |
| MOBILE-SATELLITE\     | MOBILE except         | aeronautical\         |
| (Earth-to-space)      | aeronautical\         | mobile 5.384A         |
| 5.351A                | mobile 5.384A         |                       |
|                       |                       | MOBILE-SATELLITE\     |
| Earth                 | ~~MOBILE-SATELLITE~~  | (Earth-to-space)      |
| e                     |                       | 5.351A                |
| xploration-satellite\ | [Mobile-Sa            |                       |
| (passive)             | tellite]{.underline}\ | Earth                 |
|                       | (Earth-to-space)      | e                     |
| Radio astronomy       | 5.351A                | xploration-satellite\ |
|                       |                       | (passive)             |
| Space research        | Earth                 |                       |
| (passive)             | e                     | Radio astronomy       |
|                       | xploration-satellite\ |                       |
|                       | (passive)             | Space research        |
|                       |                       | (passive)             |
|                       | Radio astronomy       |                       |
|                       |                       |                       |
|                       | Space research        |                       |
|                       | (passive)             |                       |
+-----------------------+-----------------------+-----------------------+
| 5.149 5.412 5.419     | 5.149 5.419 5.420     | 5.149 5.419 5.420     |
| 5.420                 |                       | 5.420A                |
+-----------------------+-----------------------+-----------------------+
| **2 690-2 700** EARTH |                       |                       |
| EXPLORATION-SATELLITE |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| RADIO ASTRONOMY       |                       |                       |
|                       |                       |                       |
| SPACE RESEARCH        |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| 5.340 5.422           |                       |                       |
+-----------------------+-----------------------+-----------------------+

**Reasons:** In general, co-frequency sharing between the
mobile-satellite service (MSS) and terrestrial services has been found
to be difficult in the ITU-R studies. The sharing between the
terrestrial services and the MSS poses risks of harmful interference to
both systems. In addition, sharing would require large separation
distances between terrestrial stations and MSS earth stations in order
to avoid harmful interference to both Services.

Large separation distances could be available in large countries where
citizens without the benefit of terrestrial infrastructure could rely on
MSS systems to provide vital communications services including Internet
access. The lack of terrestrial infrastructure in developing countries
and sparsely populated areas also points up the need for Services like
MSS. The use of large separation distances could permit the use of both
terrestrial Services and the MSS.

Allocation to the MSS on a Secondary basis would provide a regulatory
solution to interference while still maintaining the option of the MSS
in areas where no terrestrial infrastructure exists.

**[INFORMAL WORKING GROUP 4 (IWG-4)]{.underline}**

**[Broadcasting and Amateur Issues]{.underline}**

**[Document WAC/103(27.04.06):]{.underline}**

# DRAFT PROPOSAL For the WORK OF THE conference {#draft-proposal-for-the-work-of-the-conference-4 .unnumbered}

**WRC-07 Agenda Item 1.11**

**Subject:** Modification and Augmentation to CITEL PCC.II IAP for
WRC-07 Agenda Item 1.11, *"to review sharing criteria and regulatory
provisions for protection of terrestrial services in particular
terrestrial television broadcasting services, in the band 620 -- 790 MHz
from BSS networks and systems, in accordance with **Res. 545
(WRC-03)**"*

**Purpose:**

The sixth meeting of CITEL PCC.II developed an IAP for WRC-07 Agenda
Item 1.11, to which the US signed. The US strongly supports the goal of
this IAP, to protect terrestrial services in the 620-790 MHz band from
harmful interference of transmitting co-frequency broadcast-satellite
systems. In order to ensure the best protection of terrestrial systems,
the US believes that certain modifications are needed to augment the
proposal. These modifications, summarized in the following paragraphs,
are provided in the attached edits to the IAP.

The current IAP, which specifies NOC to Articles 5, 9, and 11 of the
Radio Regulations, needs to be slightly modified because the Art. 5
provision dealing with the 620-790 MHz BSS allocation, No**. 5.311**,
does not indicate a reference bandwidth for the pfd. One is needed to
avoid questions over the level of protection afforded to terrestrial
services. Furthermore, Res. 545, the companion resolution to this agenda
item, should be modified to reflect that studies on this topic are
completed and to address transitional measures (e.g., how the Bureau
should process the BSS submissions suspended by WRC-03).

In order to define an appropriate reference bandwidth for the pfd, it is
assumed that the reference bandwidth for the current pfd is 24 MHz,
recognizing that the larger the bandwidth assumed for a given pfd value,
the greater protection provided to terrestrial services. Then, to
protect broadcast systems and more narrowband systems, the pfd is
translated into a 4 kHz bandwidth.

**Summary:**

The following pages indicate the modification to the IAP for agenda item
1.11 in strikethrough/underline format.

+-------+--------------------------------------+-------------+--------+
| **VI  |                                      | **OEA/Ser.L |        |
| ME    |                                      | /XVII.4.2** |        |
| ETING |                                      |             |        |
| OF    |                                      | **CCP.II    |        |
| P     |                                      | -RADIO/doc. |        |
| ERMAN |                                      | 896/05**    |        |
| ENT** |                                      |             |        |
|       |                                      | **1 May     |        |
| **CO  |                                      | 2006**      |        |
| NSULT |                                      |             |        |
| ATIVE |                                      | **Original: |        |
| COMM  |                                      | English**   |        |
| ITTEE |                                      |             |        |
| II:** |                                      |             |        |
|       |                                      |             |        |
| **R   |                                      |             |        |
| ADIOC |                                      |             |        |
| OMMUN |                                      |             |        |
| ICATI |                                      |             |        |
| ONS** |                                      |             |        |
|       |                                      |             |        |
| *     |                                      |             |        |
| *INCL |                                      |             |        |
| UDING |                                      |             |        |
| BROA  |                                      |             |        |
| DCAST |                                      |             |        |
| ING** |                                      |             |        |
|       |                                      |             |        |
| **Oc  |                                      |             |        |
| tober |                                      |             |        |
| 25 to |                                      |             |        |
| 28,   |                                      |             |        |
| 2     |                                      |             |        |
| 005** |                                      |             |        |
|       |                                      |             |        |
| ###   |                                      |             |        |
| San J |                                      |             |        |
| osé,  |                                      |             |        |
| Costa |                                      |             |        |
|  Rica |                                      |             |        |
+-------+--------------------------------------+-------------+--------+
|       |                                      |             |        |
+-------+--------------------------------------+-------------+--------+
|       | **INTER-AMERICAN PROPOSALS OF        |             |        |
|       | WSG-2**                              |             |        |
+-------+--------------------------------------+-------------+--------+
|       | **(Item on the Agenda: 4.1 )**       |             |        |
+-------+--------------------------------------+-------------+--------+
|       | **(Document submitted by working     |             |        |
|       | sub-group 2 (WSG-2) )**              |             |        |
+-------+--------------------------------------+-------------+--------+

**Agenda Item 1.11: *to review sharing criteria and regulatory
provisions for protection of terrestrial services in particular
terrestrial television broadcasting services, in the band 620 -- 790 MHz
from BSS networks and systems, in accordance with Resolution 545
(WRC-03)***

**Background**

Under footnote No.**5.311**, the band 620-790 MHz may be used for
assignments to television stations using frequency modulation in the BSS
(GSO or non-GSO). Since this band is extensively used by terrestrial
applications, Recommendation **705 (WARC-79)** includes, among other
things, satellite pfd limits needed to protect the terrestrial services,
in particular, the terrestrial television broadcasting service that uses
this band extensively in all three Regions.. It should also be noted
that there are allocations to the fixed and mobile services in some
regions in this band that also need to be addressed. In particular, some
Region 2 administrations added their names to footnote No.5.293 which
allocates the band to the fixed and mobile services on a primary basis
in several Region 2 countries.

In Region 2 the 620-790 MHz band is used extensively by free-to-air TV
systems. As a result of this extensive use of the 620-790MHz band
,Region 2 Administrations have not made allowances for external
interference in the deployment of their terrestrial TV systems or in the
development of their TV allotment plans or in the development of other
fixed and mobile services and therefore ,there are no excess margins
which could have been used to accommodate additional interference from
systems in the BSS.

WRC-03 adopted a freeze on the processing of BSS satellite filings in
the band until the next WRC as per a new Resolution **545 (WRC-03)** and
suspended the application of No.**5.311** and Recommendation **705**
**(WARC-79)** until that date. The Resolution was acceptable to all
parties with the understanding:

1)  it allows for studies to continue on the appropriate protection
    levels for the terrestrial broadcasting service (BS) to be
    determined;

2)  it does not impact the Regional Planning Conference
    (RRC-04/[06,]{.underline} Region 2 is not affected) for these
    services;

3)  it places a moratorium on further deployments of BSS networks in
    these bands until such studies are complete.

[This proposal effects modifications to No. 5.311 and Res. 545 that
ensure the complete protection of the current and future usage of the
broadcast, mobile, and fixed services in the 620-790 MHz band from
interference from broadcast satellite operations in this same band. The
purpose of this propose is to restrict the future deployment of
broadcast satellite systems in a band that is very extensively used by
terrestrial services.]{.underline}

[Since neither No. 5.311 nor Rec. 705 indicate a reference bandwidth for
the BSS pfd limit in 620-790 MHz band, a reference bandwidth of 24 MHz
is assumed and then translated further to a 4 kHz bandwidth, and No.
5.311 is accordingly modified. Res. 545 from WRC_03 is modified to
address transitional issues related to resuming processing of BSS
networks after WRC-03 suspended such processing by the BR.]{.underline}

[As a consequence, Rec. 705, "Criteria to be applied for frequency
sharing between the broadcasting-satellite service and the terrestrial
broadcasting service in the band 620-790 MHz", is deleted since its
relevant content, the pfd limit reference, is contained in the
modifications to No. 5.311 and Res. 545, and after WRC-07 the broadcast
satellite and terrestrial broadcast issues in this band will have been
resolved.]{.underline}

**MOD 5.311** Within the frequency band 620-790 MHz, assignments may be
made to television stations using [analog]{.underline} frequency
modulation in the broadcasting-satellite service subject to agreement
between the administrations concerned and those having services,
operating in accordance with the Table, which may be affected (see
Resolutions **33 (Rev.WRC‑03)** and **507 (Rev.WRC‑03)**). Such stations
shall not produce a power flux-density in excess of the value ~~--129~~
[166.8]{.underline} dB(W/m^2^[/ 4 kHz)]{.underline} for
[all]{.underline} angles of arrival ~~less than 20º (see Recommendation
**705**)~~ within the territories of other countries without the consent
of the administrations of those countries. Resolution **545
(WRC~~‑03~~[07]{.underline})**
applies.     (WRC-**~~‑03~~[07]{.underline}**)

[**MOD Res. 545** (See Attachment 1)]{.underline}

**[SUP Rec. 705]{.underline}**

[Reason]{.underline}

Region 2 administrations have no plans to implement BSS systems in the
band 620-790 MHz. The administrations in Region 2 are currently
operating or planning to operate a large number of terrestrial analog
and digital television broadcasting systems. In addition, some Region 2
administrations will be implementing mobile and fixed services,
including public safety applications. As a result of this extensive use
of the 620-720MHz by existing systems ,Region 2 Administrations have not
allocated any additional interference margins for the protection of
terrestrial TV broadcasting and therefore any additional interference
from BSS will place undue constraints on the existing and planned
services in Region 2.

ATTACHMENT 1

**RESOLUTION 545 (~~r~~[Rev.]{.underline} WRC-0[7]{.underline}~~3~~)**

T[r]{.underline}~~echnical and regulatory procedures~~[ansitional
measures]{.underline} relating to the broadcasting-satellite service
networks ~~operating~~ in the 620-790 MHz band

The World Radiocommunication Conference (Geneva,
200[7]{.underline}~~3~~),

considering

*a)* that No.** 5.311** provides the conditions under which the band
620-790 MHz may be used for assignments to television stations using
[analog]{.underline} frequency modulation in the broadcasting-satellite
service (BSS);

*b)* that it is necessary to adequately protect terrestrial services
including the terrestrial television broadcasting systems [and fixed and
mobile systems]{.underline} in this band;

*~~c)~~* ~~that the sharing and associated provisions for satellite
networks are under study in ITU‑R with respect to the impact of such
systems on the terrestrial services;~~

*[c]{.underline}~~d~~)* that geostationary-satellite (GSO) BSS networks
and non-geostationary (non‑GSO) BSS satellite networks or systems are at
the stage of advance publication or coordination, or have been notified
in the 620-790 MHz frequency band;

*~~e~~[d]{.underline})* that ~~studies are being undertaken to
determine, *inter alia*, the planning criteria to be used for~~ the
Regional Radiocommunication Conference (RRC‑04/05) [effected a
terrestrial digital television broadcasting plan]{.underline} for
Region 1 and one country in Region 3;~~that the impact of these GSO BSS
networks and non-GSO BSS satellite networks or systems on terrestrial
services including digital and analogue television broadcasting systems
has yet to be examined;~~

*[e]{.underline}~~g~~)* that there are at present few GSO networks
operating in accordance with No. **5.31***~~h)~~* ~~that it would be
inappropriate to draw any conclusions regarding the form and levels of
the protection criteria and their application to GSO BSS networks and
non-GSO BSS satellite networks or systems until the completion of
relevant studies and the approval of corresponding ITU‑R
Recommendations;~~

*[f]{.underline}~~i~~)* that many administrations have extensive
infrastructure for the transmission and reception of analogue and
digital television services between 620 MHz and 790 MHz,

[*g)* that some administrations are using or plan to use portions of the
620-790 MHz band for fixed and mobile service applications]{.underline}

noting

*a)* ~~that the protection of terrestrial television services in the
band 620-790 MHz requires more study before any conclusion can be made
about the appropriate pfd values;~~

~~*b)* that studies called for in Recommendation **705** have been
recently initiated but not completed;~~

~~*c)* that the reference bandwidth of the pfd limit in No. **5.311** is
undefined and guidance is urgently needed and has been requested by the
Radiocommunication Bureau;~~

~~*d)* that the existing provisions related to the band 620-790 MHz are
ambiguous and have been difficult to apply by administrations and the
Bureau,~~[that WRC-03 suspended processing of submissions of BSS
networks or systems in the 620-790 MHz band, irrespective of their date
of receipt, pending WRC-07 decisions;]{.underline}

[b) that WRC-03 specified that GSO BSS networks and non-GSO BSS
satellite networks or systems in the frequency band 620-790 MHz other
than those notified, brought into use and the date of bringing into use
confirmed before the end of WRC‑03, shall not be brought into use before
the end of WRC‑07;]{.underline}

[c) that transitional measures are needed to address the WRC-03
decisions in notings a) and b),]{.underline}

resolves

1 that[, at the end of WRC-07,]{.underline} the processing of
submissions of GSO BSS networks and non-GSO BSS satellite networks or
systems in the frequency band 620-790 MHz received by the Bureau and not
brought into use prior to 5 July 2003, irrespective of their date of
receipt, ~~shall be suspended pending WRC‑07 decisions on the sharing
criteria, including the pfd required to protect the terrestrial services
in this frequency band~~[shall resume, with No. **5.311** as revised by
WRC-07 applied]{.underline};

2 to ~~suspend~~ [apply]{.underline} ~~the application of~~
No. **5.311** ~~and Recommendation **705** until the end of WRC‑07 with
respect~~ [as revised by WRC-07]{.underline} to the GSO BSS networks and
non-GSO BSS satellite networks or systems in the frequency band
620-790 MHz and for which notification is received between 5 July 2003
and the end of WRC‑07;

[3 that No. **5.311** as revised by WRC-07 shall be applied to all GSO
BSS networks and non-GSO BSS networks or systems in the frequency band
620-790 MHz other than those notified, brought into use and the date of
bringing into use confirmed before the end of WRC‑03;]{.underline}

[4]{.underline}~~3~~ that[, in accordance with No.
**5.311**]{.underline} [(as revised by WRC-07),]{.underline} ~~GSO BSS
networks and non-GSO BSS satellite networks or systems in the frequency
band 620-790 MHz other than those notified, brought into use and the
date of bringing into use confirmed before the end of WRC‑03, shall not
be brought into use before the end of WRC‑07~~[no submissions for GSO
BSS networks and non-GSO BSS satellite networks or systems in the
frequency band 620-790 MHz under Articles 9 or 11 of the Radio
Regulations involving digital transmission shall be
accepted]{.underline};

[5]{.underline}~~4~~ that the notified date of bringing into use
referred in Nos. **11.44** and **11.48** for GSO BSS networks and
non-GSO BSS satellite networks or systems in this frequency band for
which the Bureau receives notification prior to 5 July 2003 shall be
extended by the length of the period from the date of receipt by the
Bureau of the complete advanced publication information to the end of
WRC‑07;~~5 that the BSS systems referred to in *resolve*s 1 above shall
not be taken into account in the application of *resolves *3.1C and 3.4
of Council Resolution 1185;~~

6 that in the band 620-790 MHz, No. **22.2** shall ~~continue to~~ apply
to assignments to non‑GSO satellite systems in the BSS[, including
those]{.underline} for which complete notification information is
considered to have been received by the Bureau prior to 5 July 2003 ~~in
respect of assignments to GSO satellite networks in the BSS for which
complete coordination information is considered to have been received by
the Bureau prior to 5 July 2003. The relationship between GSO networks
and non‑GSO satellite networks or systems for which complete
Appendix **4** information has been received by the Bureau after
4 July 2003 in the band 620-790 MHz is subject to the procedures to be
decided at WRC‑07~~,

~~invites ITU-R~~

~~to conduct studies as a matter of urgency, and develop sharing
criteria and regulatory provisions, prior to WRC‑07, for the protection
of terrestrial services, in particular terrestrial television
broadcasting services, in the 620-790 MHz band from GSO BSS networks and
non‑GSO BSS satellite networks or systems which it is planned to operate
in this band,~~

instructs the Director of the Radiocommunication Bureau

~~subject to the decisions taken by WRC-07,~~ to resume, as appropriate,
the application of Nos. **5.311** [(as revised by
WRC-07)]{.underline}**, 9.34** and **11.30** and other relevant
associated provisions of the Radio
Regulations~~,~~[.]{.underline}~~instructs the Secretary-General~~

~~to bring this Resolution to the attention of the Regional
Radiocommunication Conference, 2004/2005 (RRC‑04/05)~~

**Document WAC/104(27.04.06):**

**From: Chairman & Vice Chairman, IWG-4**

**To: Chair, FCC WAC-2007 Board**

**Subject: Non-census on Agenda Item 1.13**

IWG-4 has held 13 meetings since its inception, about 10 of these
included extensive work and discussion as it pertains to ITU-R
**Res.544** (WRC-03) portion for WRC-07 Agenda Item 1.13

> ***taking into account Resolutions 729 (WRC‑97), 351 (WRC‑03) and 544
> (WRC‑03), to review the allocations to all services in the HF bands
> between 4 MHz and 10 MHz, excluding those allocations to services in
> the frequency range 7 000 -7 200 kHz and those bands whose allotment
> plans are in Appendices 25, 26 and 27 and whose channeling
> arrangements are in Appendix 17, taking account of the impact of new
> modulation techniques, adaptive control techniques and the spectrum
> requirements for HF broadcasting***

Following considerable discussion on the pros and cons of each proposal,
the two major factions, the National Association of Shortwave
Broadcasters (NASB) and Globewireless, Inc.(with a number of other
non-government HF users of the Fixed and Mobile Services bands), could
not reach agreement on one proposal. There was no compromise or
consensus.

Several participants suggested different options and their impact on
what might likely result at WRC-07. There was no compromise. The IWG-4
decided that the two alternative draft proposals should be sent to the
WAC for its consideration and action. These alternative proposals are
presented in WAC/104A and WAC/104B.

Sincerely yours,

Ben Fisher Walt Ireland

Chairman, IWG-4 Vice Chair, IWG-4

2 Attachments:

a\. Doc. WAC/104A \-- IWG-4/66 (Rev.1)

b\. Doc. WAC 104B \-- IWG-4/72 (Rev.1)

**Document WAC/104A**

IWG-4/66(R.1) (04.04.20060)

National Association of Shortwave Broadcasters

<messerhdonald@aol.com>

**DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE**

**AGENDA ITEM 1.13 OF WRC-07**

**Agenda Item 1.13:** *taking into account Resolutions **729 (WRC-97),
351 (WRC-03)** and **544 (WRC-03)**, to review the allocations to all
services in the HF bands between 4 MHz and 10 MHz, excluding those
allocations to services in the frequency range 7 000-7 200 kHz and those
bands whose allotment plans are in Appendices **25, 26** and **27** and
whose channeling arrangements are in Appendix **17**, taking into
account the impact of new modulation techniques, adaptive control
techniques and the spectrum requirements for HF broadcasting:*

The essence of each of the 3 Resolutions mentioned in the Agenda Item
follows:

a.  Resolution **351 WRC-03)** asks that, as soon as **ITU-R** studies
    are completed, a future competent conference should consider
    necessary changes to Appendix **17** to enable the use of new
    technology by the maritime mobile service,

b.  Resolution **544 (WRC-03)** asks to consider additional allocations
    in the HF bands between 4 and 10 MHz to the broadcasting service,
    taking into account its requirements and the interest of all
    affected services, with a *noting* that the following bands are
    preferred by the broadcasting service for possible additional
    allocations to it:

4 500-4 650 kHz

5 060-5 250 kHz

5 840-5 900 kHz

7 350-7 650 kHz

9 290-9 400 kHz

9 900-9 940 kHz,

and,

c\. Resolution **729 (WRC-97)** asks to consider frequency assignments
for

frequency adaptive systems in frequency bands allocated for fixed/mobile

services operation.

**Background information:**

This is a very broad agenda item, as there are multiple services
allocated to the HF bands between 4 MHz and 10 MHz, including
aeronautical mobile (OR), aeronautical mobile (R), amateur,
broadcasting, fixed, maritime mobile, land mobile and mobile services.
The 3 Resolutions noted above deal with 3 separate issues, though the
agenda item itself connects the services through the consideration of
modifying the allocations within these 6 MHz. The CPM convened
immediately following WRC-03 and assigned the primary responsibilities
for the separate issues (based upon each Resolution) to different ITU-R
Study Group Working Parties. Subsequently a joint arrangement has been
made to facilitate the production of a CPM Report on the full
consequences of the Agenda Item, including the "overlap" engendered by
the reallocation element.

***Resolution 351***:

> resolves
>
> "1) that, in order to provide full worldwide interoperability of
> equipment on ships, there should be one technology, or more than one
> interoperable worldwide technology, implemented under Appendix **17**;
>
> 2\) that, as soon as the ITU-R studies are completed, a future
> competent conference should consider necessary changes to Appendix
> **17** to enable the use of new technology by the MMS;"

The focus of Resolution **351 (WRC-03)** is to identify a digital
technology, or family of digital technologies, that provide
interoperability and improved usage of the MF and HF bands allocated to
the maritime mobile service under Appendix **17**. The scope of this
portion of the agenda item includes a review of all Appendix **17**
assignments to facilitate the introduction of these advanced maritime
mobile digital systems.

Resolution **351** **(WRC-03)** calls for studies to include: future
requirements of the MMS, technical characteristics of the digital
systems, the necessary modifications to Appendix **17** to enable the
use of new technologies by MMS, a timetable for the introduction of new
digital technologies, and recommendations on how digital technologies
can be introduced while ensuring compliance with distress and safety
requirements. In accordance with *resolves* 2 of Resolution **351**, as
soon as the ITU‑R studies are completed, a competent conference should
consider necessary changes to Appendix **17**, to enable the use of new
digital maritime technologies by the MMS. These studies are still
underway and should be refined to examine the requirements of GMDSS
electronic messaging.

The future spectrum needs of the maritime mobile service in the HF bands
are closely related to the introduction of new data exchange
technologies into the maritime mobile service, as an alternative
standard for narrow-band direct printing (NBDP). The use of NDBP is in
rapid decline for commercial communications. IMO has noted NBDP is
currently used for broadcasting of MSI, ship reporting, weather
forecasts and for business communications, e.g., by fishing fleets.
However, all these functions could in principle be provided by
alternative HF data communications technology. A PDNR for the new MMS HF
data exchange service has been developed based on commercial Orthogonal
Frequency Division Modulation (OFDM) (see 8B/135).

NBDP remains useful for providing distress communications in the polar
regions (sea area A4) when other terrestrial means of communication are
no longer reliable because of atmospheric noise, and there is no
coverage from geostationary satellite networks providing service to the
maritime community. This NBDP functionality will be preserved using the
HF distress and safety frequencies relocated to Appendix **15**.

Because the studies on this issue are continuing, a revision of
Resolution **351** to recognize the current views of the IMO regarding
the technology transition, to note the transition that has already taken
place, and to direct additional studies regarding the spectrum needed
for new technologies is appropriate.

***Resolution 544:***

Important aspects of the recent history leading to this Resolution begin
with the preparation for Agenda Item 1.36 for WRC-03. That agenda item
called for a study of the spectrum requirements between 4 MHz and 10 MHz
as seen by the broadcasting service. After intensive study by members of
the broadcasting service, these requirements were documented
quantitatively through the activities of the ITU-R's Study Group 6, and
subsequently reported in the CPM-02 report for use by the WRC-03.

The essence of these study results from the broadcasting service Study
Group was that there is a significant deficiency of spectrum
availability in the current BS allocations between roughly 4 MHz and 10
MHz compared to the demand for broadcast transmission channels. A major
conclusion from the analysis was that it would take about 250 kHz of
additional spectrum to eliminate co-channel interference that is
currently unavoidable and roughly 850 kHz total to remove first adjacent
channel interference along with the co-channel interference.

In the main, these results were based upon a scrutiny of the databases
used by the frequency assignment coordinating committees, for example
the HFCC, for all the semi-annual periods coming a few years before
CPM-02. These results were effectively independent of the particular
sunspot cycle values during these years.

These values of a deficiency of spectral supply vs. broadcasting demand
were accepted at WRC-03. However, it did not act upon any suggestions
for a decision by it for any reallocation of the 4 MHz to 10 MHz band
range. Instead, it produced Resolution **544**. This resolution,
together with the development of Agenda Item **1.13**, strongly suggests
that WRC-07 come to closure on the main issue of a reallocation among
some of the services in this 6 MHz wide HF band.

Between WRC-03 and now, continued study has been engaged in updating the
statistical summaries on the "shortfall" in two aspects:

(1) The first is to add to the analysis the statistics from the
    coordinating committees for semi-annual seasons since 2002. This has
    been done and reported upon through the activities of WP6E. Now, for
    a 5 year period, covering both relatively high and relatively low
    sunspot activity seasons, the same basic "shortfall" conclusion
    persists. The fundamental broadcasting demand has remained and the
    below 10 MHz HF spectrum requirement is still needed at roughly the
    same level independent of sunspot activity. (The latter is clearly
    shown analytically in propagation analysis comparisons at various
    sunspot numbers and times of the year, and is noted in *considering
    e)* of this Resolution.) In short, no significant trend has appeared
    that would alter this conclusion.

(2) Questions came to WP6E in the form of Liaison Statements from other
    Working Parties about the continuity during a scheduling season of
    the "shortfall" after transmissions have begun and some adjustments
    have been made based upon the feedback that the broadcasting
    community receives via its HF monitoring networks. It was pointed
    out, through WP6E's replies to these Liaison Statements, that the
    statistical summaries provided included the situations after a month
    or two of seasonal operation, that is, after all adjustments to
    avoid interference that could be made were made. The other Working
    Parties accepted this finding.

This Resolution in *considering g)* notes that the introduction of new
digital technology will not completely solve current congestion
problems. Since the end of WRC-03, many HF broadcasters have begun
regular digital modulation broadcasts using the DRM system, which is the
ITU-R recommended system and which has been standardized by the ITU, IEC
and ETSI. The level of broadcasting is now hundreds of hours per day,
which is still only a small fraction of the total daily HF broadcasting.
These are not "replacement" broadcasts, but additional ones from the
usual analog AM ones. Thus, so far, there is no diminishment of
broadcasting transmission demand because of digital modulation.

Serious attempts have been made to predict the impact of digital
modulation, in the middle- and long-term on the spectral needs for HF
broadcasting. The primary conclusion is that there is no current,
reasonable way to state that digital modulation broadcasting will
significantly increase or significantly decrease the demand for HFBC
channels. On the one hand, the introduction of this new modulation
technique could greatly increase the interest in international and
domestic broadcasting in the HF bands because of the clear advantages it
provides over traditional analog broadcasting; on the other hand, it
could eventually reduce the need of multiple transmissions on different
frequencies for the same target area that many of the major broadcasters
employ to increase the probability of a clear signal at the targeted
reception area. Finally, a reasonable conclusion on this, given the 5
year's worth of solid data since 2000 and some indication that it will
take several years even to obtain an indication of the true impact of
digital modulation on spectral demand, is that the current demand vs.
capacity "shortfall" will be apparent for a long time.

A condition relative to this Resolution and HF broadcast spectral demand
at frequencies below 10 MHz is that considerable broadcasting is done in
bands nearby, but not in, the Article **5** HFBC bands. This is a
consequence of the "shortfall" in the HFBC bands. Its use, invoking
Article **4.4** (non-interference), amounts to roughly 15% of all HF
broadcasting. Additional data from one administration show that
approximately 40% of the non-government broadcasting done under its
auspices uses frequencies outside of the broadcasting bands between 4
and 10 MHz due to the lack of available channels in these bands that are
necessary, based upon propagation analysis, to provide adequate signal
strength in the intended broadcast areas. This Resolution and Agenda
Item 1.13 itself have been approved to redress this situation to the
maximum level possible.

To summarize, this Resolution was approved at WRC-03 with the full
understanding by the Conference that a persistent problem exists with
respect to a deficit of spectrum required for the broadcasting service
between 4 MHz and 10 MHz. Furthermore, all the quantitative data
available from scheduling coordination committees show that this deficit
level is severe (250 to 850 kHz, depending on eliminating co-channel
interference only or all interference), and the best predictions
available indicate that in the large this will continue.

***Resolution 729:***

> resolves
>
> "1 that, in authorizing the operation of frequency adaptive systems in
> the MF and HF bands, administrations shall:
>
> 1.1 make assignments in the bands allocated to the fixed and mobile
> services;
>
> 1.2 not make assignments in the bands:
>
> \- allocated exclusively to the maritime or aeronautical mobile (R)
> services;
>
> \- shared on a co-primary basis with the broadcasting service,
> radiodetermination service or the amateur services;
>
> \- allocated to radio astronomy;
>
> 1.3 avoid use which may affect frequency assignments involving safety
> services made in accordance with Nos. **5.155**, **5.155A** and
> **5.155B**;
>
> 1.4 take into account any footnotes applicable to the proposed bands
> and the implications regarding compatibility;
>
> 2 that frequency adaptive systems shall automatically limit
> simultaneous use of frequencies to the minimum necessary for
> communication requirements;
>
> 3 that, with a view to avoiding harmful interference, the system
> should evaluate the channel occupancy prior to and during operation;
>
> 4 that frequency adaptive systems shall be notified to the Bureau in
> accordance with the provisions of Article **11**,"

Resolution **729 (WRC-97)** deals with implementation of adaptive HF
systems and was not successfully addressed at either WRC-2000 or
WRC-2003. Adaptive HF systems are systems that monitor the propagation
environment on pre-established channels, and react to use the optimal
frequencies available for transmission.

Frequency adaptive systems automatically limit simultaneous use of
frequencies to the minimum necessary for communication requirements.
According to 6E/223, which originated from WP-9C, this characteristic of
adaptive systems does not necessarily reduce the number of frequencies
that must be made available to ensure successful link establishment.
Consideration must also be given to maintain quality of service for uses
that fluctuate in response to situations such as those that arise during
Public Protection and Disaster Relief. The number of frequencies in an
adaptive frequency pool is directly interrelated to the specific HF
propagation characteristics based on time of day, season, sunspot
activity, etc. Therefore, efficiency improves as more frequencies are
available. A network of stations is assigned a number of frequencies
over which to communicate, and each station is assigned a unique address
(*e.g.,* alpha-numeric).

Adaptive HF systems have been in use for over 20 years. No special
consideration in the ITU Radio Regulations is required to fully
implement adaptive HF systems. By their nature these systems already
automatically limit simultaneous use of frequencies to the minimum
necessary for communication requirements. These systems also
automatically avoid harmful interference by evaluating the channel
occupancy prior to and during operations.

To fully exploit modern HF technology, the availability of sufficient
and coordinated spectrum resources is crucial, and bandwidth beyond the
typical 3 kHz-channels must be available.

The channel bonding approach currently in use is based on the use of
several 3 kHz contiguous channels. The advent of HF 64 kbps modems has
begun to provide the ability to utilize HF spectrum for Internet, large
file transfer, and advanced electronic messaging. Loss of HF spectrum
allocated to the fixed and mobile services would constrain the
development of advanced technologies such as messaging, file transfer,
and the Internet.

The required studies related to adaptive HF technology have been
adequately answered. Therefore, Resolution **729** can be suppressed.

However, there is an emergence of high bandwidth requirements in the
form of advanced fixed and mobile HF systems which does require urgent
study. Therefore a new resolution is required to examine the issues
involved in implementing advanced fixed and mobile HF systems in the
MF/HF bands.

***Sharing considerations:***

A key element to satisfy Agenda Item 1.13 in its entirety is to
determine how, if at all possible, the allocations between 4 MHz and 10
MHz can be revised to permit additional allocations to the broadcasting
service without adversely affecting, or minimally affecting, the other
services within this 6 MHz since this spectrum is of value to all the
services that have allocations therein.

Considerable thought over the years has been given to the sharing
possibilities among the services. Focusing on recent events, the CPM-02
report, for the WRC-03 Agenda Items 1.23 and 1.36, summarized the
situation. Its conclusions on this matter have not been modified by the
ITU-R Study Group activities since the end of WRC-03

This summarization is consistent with many ITU-R reports over the years.
It states that if at all possible allocations for the broadcasting
service (one way/high power) should not be made on a co-primary basis
with any of the other services that wish to use HF. Secondly, the other
services in many situations can share on a co-primary basis with each
other. These are general statements that take no account of the specific
uses of certain transmissions within a service. Clearly, each use has to
be studied with its own sharing constraints in mind.

After detailed discussion, and recognizing (a) the fact that the
broadcasting community regularly transmits broadcasts in certain of the
fixed service bands, under Article 4.4, with a minimum of harmful
interference events, and (b) the regulatory difficulty of transferring
some of the current fixed service, etc. allocations to maritime mobile
service allocated frequencies on a shared basis, we believe the
simplest, most practical solution for all the services involved in the 4
-- 10 MHz part of the spectrum is to have the broadcasting service and
the fixed, mobile and land mobile services share on a non-exclusive
co-primary basis.

Transition arrangements for any reallocation need to be developed since
it is understood that any reallocation will require an adequate time to
take place. If the overall reallocation solution includes no movement
for the fixed, mobile and land mobile services, a transition period
could be a short one.

**Proposals:**

**USA/ /1 MOD**

RESOLUTION 351 (WRC-07)

Review of the frequency and channel arrangements in the MF and\
HF bands allocated to the maritime mobile service with a view to\
improving efficiency by considering the use of new digital\
technology by the maritime mobile service

The World Radiocommunication Conference (Geneva, 2007),

**Reasons**: Editorial

considering

*a)* that the agenda of this Conference included consideration of the
use of new digital technology in the maritime mobile service (MMS) in
the MF and HF bands;

*b)* that the introduction of new digital

technology in the MMS shall not disrupt the distress and safety
communications in the MF and HF bands including those established by the
International Convention for the Safety of Life at Sea (SOLAS), 1974, as
amended;

*c)* that changes made in Appendix **17** should not prejudice the
future use of these frequencies or the capabilities of systems or new
applications required for use by the MMS;

*d)* that the need to use new digital technologies in the MMS is growing
rapidly; resolution is required to examine the issues involved in
implementing advanced fixed and mobile HF systems in the in MF/HF bands.

*e)* that the use of new digital technology on HF and MF frequencies
allocated to the MMS will make it possible to better respond to the
emerging demand for new services;

*f)* that the HF bands allocated to the MMS for A1A Morse telegraphy and
narrow-band direct-printing are significantly under-utilized at present;

**USA/ /2 MOD**

[*g)* that the IMO supports replacing general communication
narrow-band-direct-printing with new HF data exchange technology capable
of working FEC NBDP,]{.underline}

[*h)* that the IMO supports the frequencies of Appendix **15,**
concerning NBDP, be retained for the foreseeable future.]{.underline}

*i)* that the ITU Radiocommunication Sector is conducting ongoing
studies to improve the efficient use of these bands,

noting

a\) that different digital technologies have already been developed and
are in use in the MF and HF bands in several radiocommunication
services,

[b) that new maritime HF data transfer protocols have already been
developed to replace general narrow-band-direct-printing communications
using Appendix **17** frequencies,]{.underline}

noting also

that this conference has modified Appendix **17** to permit the use of
various channels or bands identified in the MF and HF bands for the
introduction of new digital technology,

resolves

1 that, in order to provide full worldwide interoperability of equipment
on ships, there should be one technology, or more than one interoperable
worldwide technology, implemented under Appendix **17**;

2 that, as soon as the ITU‑R studies are completed, a future competent
conference should consider necessary changes to Appendix **17** to
enable the use of new technology by the MMS,

invites ITU-R

to finalize studies currently ongoing:

-- to identify future requirements of the MMS;

-- to identify the technical characteristics necessary to facilitate use
of digital systems in the MF and HF bands allocated to the MMS, taking
into account any relevant ITU‑R Recommendations;

-- to identify the digital system(s) to be used in the MF/HF bands by
the MMS;

\- to identify any necessary modifications to the frequency table
contained within Appendix 17;

[- identify maritime mobile HF spectrum for new systems, particularly in
the range 10 to 18 MHz.]{.underline}

[- identify additional spectrum resources in the range 9 to 10 MHz in
order to facilitate the introduction of new technologies in the mobile
maritime service, by overcoming the large gap between the 8 and 12 MHz
maritime mobile bands;]{.underline}

-- to propose a timetable for the introduction of new digital
technologies and any consequential changes to Appendix **17**;

-- to recommend how digital technologies can be introduced while
ensuring compliance with distress and safety requirements,

instructs the Secretary-General

to bring this Resolution to the attention of the International Maritime
Organization, the International Civil Aviation Organization, the
International Association of Marine Aids to Navigation and Lighthouse
Authorities and the Comité International Radio-Maritime.

**Reasons:** There are still several studies underway that need to be
completed prior to resolving this issue. These studies should be
completed prior to the next Conference, where the appropriate changes to
the RR can be considered.

**USA/ /3 MOD**

Additional spectrum for the broadcasting bands in the

HF bands between 4 MHz and 10 MHz

For all three Regions allocate the following frequency bands to the
broadcasting service on a co-primary, that is, non-exclusive, basis with
the fixed, mobile and land mobile services (see the Table for details):

5 060 - 5100 kHz

5 840 - 5 900 kHz

7 450 - 7 600 kHz

9 340 - 9 400 kHz

9 900 - 9 940 kHz,

for a total of 350 kHz.

All of these parts are portions of the bands listed as "preferred bands"
in **Res. 544.**

**ARTICLE 5**

**Frequency allocations**

**(as modified)**

+----------+--------------+---------------------+---------------------+
| #        | # Region 2   |                     | # Region 3 {#re     |
| Region 1 |  {#region-2  |                     | gion-3 .unnumbered} |
|  {#regio | .unnumbered} |                     |                     |
| n-1 .unn |              |                     |                     |
| umbered} |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **5 060  |              |                     |                     |
| -- 5     |              |                     |                     |
| 100**    |              |                     |                     |
| FIXED    |              |                     |                     |
|          |              |                     |                     |
| [B       |              |                     |                     |
| ROADCAST |              |                     |                     |
| ING]{.un |              |                     |                     |
| derline} |              |                     |                     |
|          |              |                     |                     |
| Mobile   |              |                     |                     |
| except   |              |                     |                     |
| aero     |              |                     |                     |
| nautical |              |                     |                     |
| mobile   |              |                     |                     |
|          |              |                     |                     |
| [5.1     |              |                     |                     |
| 13,]{.un |              |                     |                     |
| derline} |              |                     |                     |
| 5.133,   |              |                     |                     |
| [5.ABC,  |              |                     |                     |
| 5.       |              |                     |                     |
| DEF]{.un |              |                     |                     |
| derline} |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **5 100  |              |                     |                     |
| -- 5     |              |                     |                     |
| 250**    |              |                     |                     |
| FIXED    |              |                     |                     |
|          |              |                     |                     |
| Mobile   |              |                     |                     |
| except   |              |                     |                     |
| aero     |              |                     |                     |
| nautical |              |                     |                     |
| mobile   |              |                     |                     |
|          |              |                     |                     |
| 5.133    |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **.....  |              |                     |                     |
| ......** |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **5 730  |              | **5 730 -- 5 840**  | **5 730 -- 5 840**  |
| -- 5     |              |                     |                     |
| 840**    |              | FIXED               | FIXED               |
|          |              |                     |                     |
| FIXED    |              | MOBILE except       | Mobile except       |
|          |              | aeronautical mobile | aeronautical mobile |
| LAND     |              | (R)                 | (R)                 |
| MOBILE   |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **5 840  |              | **5 840 -- 5 900**  | **5 840 -- 5 900**  |
| -- 5     |              |                     |                     |
| 900**    |              | FIXED               | FIXED               |
|          |              |                     |                     |
| FIXED    |              | MOBILE except       | ####                |
|          |              | aeronautical mobile |  [BROADCASTING]{.un |
| LAND     |              | (R )                | derline} {#broadcas |
| MOBILE   |              |                     | ting-2 .unnumbered} |
|          |              | ####                |                     |
| ###      |              |  [BROADCASTING]{.un | Mobile except       |
| # [BROAD |              | derline} {#broadcas | aeronautical mobile |
| CASTING] |              | ting-1 .unnumbered} | (R )                |
| {.underl |              |                     |                     |
| ine} {#b |              | [5.ABC,             | [5.ABC,             |
| roadcast |              | 5.DEF]{.underline}  | 5.DEF]{.underline}  |
| ing .unn |              |                     |                     |
| umbered} |              |                     |                     |
|          |              |                     |                     |
| [5.ABC,  |              |                     |                     |
| 5.       |              |                     |                     |
| DEF]{.un |              |                     |                     |
| derline} |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **       |              |                     |                     |
| ........ |              |                     |                     |
| ......** |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **7 450  |              |                     |                     |
| --       |              |                     |                     |
| 7600**   |              |                     |                     |
| FIXED    |              |                     |                     |
|          |              |                     |                     |
| MOBILE   |              |                     |                     |
| except   |              |                     |                     |
| mobile   |              |                     |                     |
| aero     |              |                     |                     |
| nautical |              |                     |                     |
| (R)      |              |                     |                     |
|          |              |                     |                     |
| [B       |              |                     |                     |
| ROADCAST |              |                     |                     |
| ING]{.un |              |                     |                     |
| derline} |              |                     |                     |
|          |              |                     |                     |
| 5.143E,  |              |                     |                     |
| 5.144,   |              |                     |                     |
| [5.ABC,  |              |                     |                     |
| 5.       |              |                     |                     |
| DEF]{.un |              |                     |                     |
| derline} |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **7      |              |                     |                     |
| 600 - 8  |              |                     |                     |
| 100**    |              |                     |                     |
| FIXED    |              |                     |                     |
|          |              |                     |                     |
| MOBILE   |              |                     |                     |
| except   |              |                     |                     |
| maritime |              |                     |                     |
| mobile   |              |                     |                     |
| (R)      |              |                     |                     |
|          |              |                     |                     |
| 5.143E,  |              |                     |                     |
| 5.144    |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **.      |              |                     |                     |
| ........ |              |                     |                     |
| ......** |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **9 040  |              |                     |                     |
| --       |              |                     |                     |
| 9340**   |              |                     |                     |
| FIXED    |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **9 340  |              |                     |                     |
| --       |              |                     |                     |
| 9400**   |              |                     |                     |
| FIXED    |              |                     |                     |
|          |              |                     |                     |
| [B       |              |                     |                     |
| ROADCAST |              |                     |                     |
| ING]{.un |              |                     |                     |
| derline} |              |                     |                     |
|          |              |                     |                     |
| [5.ABC,  |              |                     |                     |
| 5.       |              |                     |                     |
| DEF]{.un |              |                     |                     |
| derline} |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **..     |              |                     |                     |
| ........ |              |                     |                     |
| ......** |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **9 900  |              |                     |                     |
| --       |              |                     |                     |
| 9940**   |              |                     |                     |
| FIXED    |              |                     |                     |
|          |              |                     |                     |
| [B       |              |                     |                     |
| ROADCAST |              |                     |                     |
| ING]{.un |              |                     |                     |
| derline} |              |                     |                     |
|          |              |                     |                     |
| [5.ABC,  |              |                     |                     |
| 5.       |              |                     |                     |
| DEF]{.un |              |                     |                     |
| derline} |              |                     |                     |
+----------+--------------+---------------------+---------------------+
| **9 940  |              |                     |                     |
| --       |              |                     |                     |
| 9995**   |              |                     |                     |
| FIXED    |              |                     |                     |
+----------+--------------+---------------------+---------------------+

**Reasons:**

There is ample evidence that the broadcasting service has a requirement
for additional spectrum allocations in this portion of the spectrum.
This is substantiated by several years of carefully compiled statistics
comparing channel demand with channel capacity in its existing
allocations between 4 and 10 MHz. "Collisions", that is, unavoidable
mutual interference, occur to the extent of a channel deficit the
equivalent of 250 kHz for co-channel interference and around 800 -- 850
kHz to include the removal of adjacent channel interference.

In addition, in attempts to avoid this situation, some broadcasters
resort to "spillover" broadcasting into nearby fixed, mobile and land
mobile bands, with the broadcasters operating under **Article 4.4.**
Broadcast channel occupation statistics show that this "out-of-band"
broadcasting covers roughly 15% of all broadcasts below 10 MHz. This de
facto situation needs to be remedied because many administrations,
acting as "host" administrations for HFBC transmission sites, do not
permit "out-of-band" broadcasting. This has the effect of forcing some
smaller broadcasting organizations to rely upon "out-of-band"
broadcasting well beyond the 15% average value mentioned above.

Remedying this situation, without operationally penalizing the fixed,
mobile and land mobile service users of the spectrum where the broadcast
service users now operate on an **Article 4.4** basis can be done in two
ways: (a) have the broadcasting service share with the non-broadcasting
services in a fraction of the allocations for the non-broadcasting
services involved or (b) reallocating these non-broadcasting services to
share within certain parts of the maritime mobile service allocations
within the 4 -- 10 MHz portion of the spectrum. Because of the wording
of Agenda Item 1.13, and for some operational reasons, the latter method
is less attractive than the former.

Therefore, contiguous with existing broadcasting service bands, 5
non-broadcasting bands are proposed for use on a non-exclusive basis for
the broadcasting service and those with the current allocation (see the
Table above). (Note: The only exception to this contiguity is that in
Region 2 the band 7400 -- 7450 kHz is allocated to the fixed and mobile
services rather than the broadcasting service. This leaves a 50 kHz
"gap" to the nearest broadcasting service band, which ends at 7400 kHz.)
These 350 kHz in total account for 14 % of the total fixed, mobile and
land mobile services allocations in the 4 -- 10 MHz portion of the
spectrum.

The fixed, mobile and land mobile allocations in these bands will not be
eliminated. The change amounts to a sharing situation among these
services and the broadcasting service. Although not the most attractive
in theory of the sharing possibilities within the 4 -- 10 MHz part of
the spectrum, it is noted that the current "out-of-band " use of these
frequencies by some of the broadcasting service users under Article 4.4
has seldom caused harmful interference with the other service uses. With
the increased use of adaptive techniques (see Res. 729), it can be
expected that interference under a co-primary allocation will not
increase, and may decrease.

This proposed allocation revision also avoids the possibility of
suggesting that the fixed, mobile and land mobile services might share
the amount of spectrum given to the broadcasting service by moving into
a sharing situation with elements of the maritime mobile service. Thus,
a potentially difficult situation is avoided.

## USA/ /4 ADD {#usa-4-add .unnumbered}

# Transition period arrangements {#transition-period-arrangements .unnumbered}

**5.ABC** The additions of a primary allocation to the broadcasting
service in the bands 5060 -- 5100 kHz, 5840 -- 5900 kHz, 7450 -- 7600
kHz, 9340 -- 9400 kHz and 9900 -- 9940 kHz will be effective starting 30
March 2009.

**Reason:**

Since the reallocation proposal does not involve reallocating the fixed,
mobile and land mobile allocations, a transition period should not need
a long period to take effect. Therefore, it is proposed that the
additions for the broadcasting service take effect on 30 March 2009.
This is to synchronize with the WRC-03 decision on the amateur services
additional allocation in the 7100 -- 7200 kHz band resulting from its
Agenda Item 1.23. In this way the totality of reallocations within the 4
-- 10 MHz portion of the spectrum will take effect at one time

###  {#section .unnumbered}

### USA/ /5 ADD {#usa-5-add .unnumbered}

# Footnote on emergency responses {#footnote-on-emergency-responses .unnumbered}

**5.DEF** For those frequency allocations listed in footnote **5.ABC,**
administrations who control assignments for the broadcasting service to
transmit to CIRAF zones that have been declared by competent authorities
to be emergencies of a disaster or public safety nature shall
immediately notify these broadcasters of the situation and instruct them
to cease regular broadcasting in accordance with the Article 12
coordination procedure until further notice to recommence broadcasting.
This does not preclude the broadcasters to transmit messages that may be
approved by the authorities in the affected CIRAF zones.

**Reason:**

The ITU-R, among many other international organizations, is deeply
concerned about communication and other techniques to be used to respond
rapidly to natural and man-made disasters and to certain public safety
situations. As part of the overall arsenal to deal with these problems,
this proposed footnote, as a pioneering measure perhaps for other
Article 5 allocations, will place the ITU-R on record to reduce the
problems of interference with essential emergency communications during
emergency situations at specific locations.

**USA/ / 6 SUP**

RESOLUTION 729 (WRC-97)

Use of frequency adaptive systems in the MF and HF bands

**Reasons:** The studies under Resolution **729** have been completed.
These studies have indicated that no changes to the RR are required to
facilitate the introduction of adaptive techniques in the MF/HF bands.

**USA/ / 7 ADD**

RESOLUTION USA 1 (WRC-07)

Bandwidth Requirements for Advanced Fixed and Mobile HF Technologies in
the 3 -- 30 MHz Band

The World Radiocommunication Conference (Geneva, 2007),

considering

*a)* that there are a limited number of fixed and mobile 3 kHz bandwidth
channels, and many channel bandwidths are below 500 Hz, in the planned
portions of the 3-30 MHz band;

*b)* that trials of advanced fixed and mobile HF frequency systems have
demonstrated their feasibility and their associated spectrum efficiency;

*c)* that advanced fixed and mobile HF frequency systems require larger
channel bandwidth assignments which currently can only be accomplished
through channel bonding;

noting

that some advanced fixed and mobile HF frequency adaptive systems
utilize bandwidths of up to 12 kHz to support HF electronic messaging,
HF Internet, and HF file transfer;

resolves to invite ITU-R

1 to determine the feasibility of changing the Radio Regulations to
provide for the use of wider bandwidths to support advanced fixed and
mobile HF systems in the 3 -- 30 MHz band;

2 to bring the results of these studies to the attention of WRC‑10

**Reasons:** Urgent studies are required to determine the suitability of
changing the radio regulations to allow for wider bandwidths to the
fixed and mobile services to accommodate advanced HF adaptive systems.

**Document WAC/104B**

**Doc.IWG-4/72(R.1) (04.05.2006)**

**HF Users Group**

**Peter Kierans**

**Draft Proposal for the Work of the Conference of WRC 2007**

Executive Summary.

This document proposes that no additional spectrum be allocated to the
Broadcast Service.

Consideration has been given to the fact that:

a)  the Broadcast Service is already scheduled to receive additional
    spectrum in 2007and again in 2009 and,

> b\) some broadcasters are cutting back or eliminating their HF
> broadcast services, but there is an increasing demand for safety
> related mobile services.

The serious consequences associated with allocating further additional
spectrum to the Broadcast Service at the expense of Fixed and Mobile is
outlined in this document.

> **Agenda Item 1.13*: ****taking into account Resolutions **729
> (WRC-97), 351 (WRC-03)** and **544 (WRC-03)**, to review the
> allocations to all services in the HF bands between 4 MHz and 10 MHz,
> excluding those allocations to services in the frequency range 7 000-7
> 200 kHz and those bands whose allotment plans are in Appendices 25**,
> 26** and **27** and whose channelling arrangements are in Appendix 17,
> taking account of the impact of new modulation techniques and the
> spectrum requirements for HF broadcasting;*

**Background:** This is a very broad agenda item, as there are multiple
services allocated to the HF bands between 4 MHz and 10 MHz, including
aeronautical mobile (OR), aeronautical mobile (R), amateur,
broadcasting, fixed, maritime mobile and mobile services. Agenda item
1.13 covers three resolutions that deal with three separate issues.
These issues are connected within the agenda item on the basis that they
cover overlapping frequency ranges. The Conference Preparatory Meet
(CPM) convened following WRC-03 assigned the primary responsibilities
for the separate issues to different ITU-R Working Parties.

***Resolution 351***:

> resolves
>
> "1) that, in order to provide full worldwide interoperability of
> equipment on ships, there should be one technology, or more than one
> interoperable worldwide technology, implemented under Appendix **17**;
>
> 2\) that, as soon as the ITU-R studies are completed, a future
> competent conference should consider necessary changes to Appendix
> **17** to enable the use of new technology by the MMS;"

The focus of Resolution **351 (WRC-03)** is to identify a digital
technology, or family of digital technologies, that provide
interoperability and improved usage of the MF and HF bands allocated to
the maritime mobile service under Appendix **17**. The scope of this
portion of the agenda item includes a review of all Appendix **17**
assignments to facilitate the introduction of these advanced maritime
mobile digital systems.

Resolution **351** **(WRC-03)** calls for studies to include; future
requirements of the MMS, technical characteristics of the digital
systems, the necessary modifications to Appendix **17** to enable the
use of new technologies by MMS, a timetable for the introduction of new
digital technologies, and recommendations on how digital technologies
can be introduced while ensuring compliance with distress and safety
requirements. In accordance with *resolves* 2 of Resolution **351**, as
soon as the ITU‑R studies are completed, a competent conference should
consider necessary changes to Appendix **17**, to enable the use of new
digital maritime technologies by the MMS. These studies are still
underway and should be refined to examine the requirements of GMDSS
electronic messaging. The future spectrum needs of the maritime mobile
service in the HF bands are closely related to the introduction of new
data exchange technologies into the maritime mobile service, as an
alternative standard for narrow-band direct printing (NBDP). The use of
NDBP is in rapid decline for commercial communications. IMO has noted
NBDP is currently used for broadcasting of MSI, ship reporting, and
weather forecasts and for safety related business communications.
However, all these functions could in principle be provided by
alternative HF data communications technology. A PDNR for the new MMS HF
data exchange service has been developed based on commercial Orthogonal
Frequency Division Modulation (OFDM) (see 8B/135 and 8B/209).

NBDP remains useful for providing distress communications in the Polar
regions (sea area A4) when other terrestrial means of communication are
no longer reliable because of atmospheric noise, and there is no
coverage from geostationary satellite networks providing service to the
maritime community. This NBDP functionality will be preserved using the
HF distress and safety frequencies listed in Appendix **15**.

Because the studies on this issue are continuing, a revision of
Resolution **351** to recognize the current views of the IMO regarding
the technology transition, to note the transition that has already taken
place, and to direct additional studies regarding the spectrum needed
for new technologies is appropriate.

***Resolution 544:***

> resolves to invite ITU-R
>
> "1 to carry out studies on this matter, particularly in respect of the
> bands identified in *noting* above, taking into account technical,
> operational, economic and other relevant factors, including the
> appropriate transitional arrangements, and how the introduction of
> digital emissions will affect the HF broadcasting requirements and how
> such reallocations will affect other services using these bands."
>
> further resolves
>
> \"to recommend a future competent conference to conclude, where
> appropriate, on additional spectrum requirements for the broadcasting
> service, taking into account the interest of all affected services\"

Resolution **544 (WRC-03)** resulted from work that was not completed at
WRC-03. WRC-03 allocated 50 kHz in Region 2 to the broadcast service as
a result of the realignment of portions of the 7 MHz band under WRC-03
agenda item 1.23. Prior to WRC-03, the broadcasting service identified a
shortfall in the 4-10 MHz band of 250 kHz of spectrum to alleviate
co-channel interference, and 800 kHz of spectrum to alleviate adjacent
channel interference. The Resolution also called for a review of the
impact of relocating other services from current spectrum allocations if
these broadcasting spectrum requirements were accommodated, as well as
what transitional arrangements should be made.

WARC-92 (**5.136**) decided to allocate 100 kHz of spectrum to the
broadcasting service which will transition from fixed and mobile service
allocations in 2007. Any further decrease in available spectrum may
affect the ability of fixed and mobile service users to establish and
maintain reliable, essential and emergency communications services. Any
consideration by WRC‑07 to reallocate additional spectrum to the
broadcast service should carefully consider the impact on existing and
planned fixed and mobile services. Currently, there are 2 102 kHz
between 4 and 10 MHz allocated to support the land mobile services and 2
712 kHz allocated to the fixed service. After April 1, 2007,
implementation of the results of WARC-92 reduces that amount to 2 002
kHz for land mobile and 2 512 kHz for the fixed service as a result of
the reallocation to the broadcast service. After March 29, 2009, in
Region 2 an additional 50 kHz is allocated from the fixed and land
mobile services to the broadcast service.

Because of their reliability and low cost, fixed and mobile HF services
will continue to be required by Administrations. Administrations must be
ready to support fluctuations in demand by the fixed and mobile service
during emergency communications. The fixed and mobile services are
unique in that requirements to use them increase during emergency and
disaster situations. Public Protection and Disaster Relief operations
depend on the availability of spectrum to support operations.

Displacement of current frequencies from the fixed and mobile service
may require considerable expenses for realignment of communication
networks and change (replacement) of antennas. In some cases it may be
difficult to establish required radio links based on the loss of
currently available portions of the spectrum, and due to spectrum
crowding from realignment of assignments to account for any spectrum
allocated from the fixed and mobile service to the broadcast service.

The operational database(s) maintained by the HF Coordinating Committee
(HFCC) illustrate that a broadcast primary allocation of 250 kHz of
spectrum would alleviate co-channel interference, and 800 kHz of
spectrum would alleviate adjacent channel interference. According to
text contained in WP-8A/199, which originated from WP-6E, the HF
broadcasters currently address this shortfall by using FS and LMS bands
on a non-interference basis under Article **4.4**. According to WP
6E/162, 80-85% of shortwave broadcasting hours in the 4-10 MHz band
operates within broadcasting allocations and do not operate under
Article **4.4**.

There is interference risks associated with Article **4.4** operation.
The HFCC and Administrations need to take these risks into account when
assessing cross border interference potential and coordinating usage
under Article **4.4**. Some Administrations have reported interference
from the broadcast service in the fixed and mobile bands. At least one
incident resulted in discontinuation of broadcaster operations. Given
this interference risk, Article **4.4** operations do not represent
successful broadcaster occupancy of the fixed and mobile bands, nor do
they justify reallocation of these portions of the fixed and mobile
bands to the broadcasting service.

HF Broadcast providers are currently investing in alternate delivery
methods, which may be used to augment or replace programming hours. FM,
cable, satellite, and Internet are beginning to provide alternate
delivery in developed countries, but are problematic for developing
countries due to cost, coverage, and reliability.

Recent public announcements by some broadcasters confirm that there is a
decline in the need for HF broadcast spectrum.

Recent natural disasters have demonstrated that the fixed and mobile
services are unique in comparison to the broadcast service in that
requirements are driven up rapidly during the development of emergency
situations. Increased congestion is inevitable during periods of peak
usage by the fixed and mobile services.

ITU-R WP 9C has noted that during the 2004-2005 Indian Ocean Tsunami
Relief Effort, the emergent need for HF communications drove up spectrum
demand rapidly. Because of existing extensive usage of the HF bands in
disaster areas, it was not possible to provide all the required channels
to meet required emergency communications. Ionospheric (skywave) signal
propagation is frequency selective and frequencies usable for
communications between any two points change over time throughout the
day. This is why several different segments of spectrum within the HF
frequency range are allocated to each radio service. This enables the
users of the service to have full time access to frequencies that are
usable throughout a 24-hour period.

For the fixed and mobile services, propagation concerns make it
essential that the frequency channels or sub-bands of an HF pool are
evenly spaced in order to adapt to the daily and seasonal changes in the
ionosphere. That is why spectrum is allocated to the different services
throughout the 4 to 30 MHz range.

[The impact to the fixed and mobile services of allocating additional
spectrum to the broadcasters would be too severe, since those additional
allocations would come from bands assigned to these services. This
situation will not change in the foreseeable future.]{.underline}

The examples below show the specific services that would be negatively
affected by the proposed re-allocation of spectrum.

On-air monitoring up to 19 September 2005 shows that the following
services would be affected:

**[5 060-5 250 kHz]{.underline}**

[13 safety-related maritime data channels]{.underline} would be affected
and one Link 11 operations.

Additional operations with licenses in this band are:

U.S. FBI

NATO Link 11

UK Royal Navy

S African Navy

Malaysian Navy\
Russian Navy

French Military

German Navy The impact on US based services is

Danish Army summarized in Annex 1

Polish Army

US Army

Mexican Army

French Army

Italian Army

US Air Force

[US Coast Guard New Orleans (MMS safety service)]{.underline}

Spanish Air Force

Spanish Civil Guard

US NASA

US Navy

[China meteorological fax broadcast (safety service)]{.underline}

UK Fisheries surveillance

Canadian Navy

[US Federal Emergency Management Agency (Disaster Relief)]{.underline}

UK Royal Navy Coastal Control

UK customs

AFTN net control (aeronautical)

Australian Police

LDOC (Air/Ground) Sweden, France & Australia.

Swiss Diplo Service

**[5 840-5 900 kHz]{.underline}**

[11 safety-related maritime data channels]{.underline} would be affected
plus on US Air Force operation and one maritime meteorological
broadcast. Additional operations with licenses in this band are:

U.S. DEA

Danish Fax Ice Reports

Spanish Air Force

Spanish Civil Guard

Korean Meteorological Reports The impact on US based services

Russian navy is summarized in Annex 1

[Greek Meteo (safety service)]{.underline}

UK Naval coastal control

US Air Force

French Military

Australian Truckers

USAF NASA

**Note: Three (3) broadcasts were heard in this area**

**[7 350-7 650 kHz]{.underline}**

[11 safety-related maritime data channels,]{.underline} 1 NBDP and 1
Nato Stanag standard 4285 data communication.

This band is already used by French, E European, Indian, and one U.S.
based religious broadcaster. A total of 13 broadcasters were heard in
Oct. 2005, including the BBC using DRM.

Also having assigned frequencies in this band:

[Chinese meteo broadcast (safety broadcast)]{.underline}

French Military

Dutch Military The Impact on US based services

US Army is summarized in Annex 1

US Navy

Russian Navy

Portuguese Navy

Argentine Navy

[Indian Meteo (safety service)]{.underline}

[Japan Meteo (safety service)]{.underline}

[USA Federal Emergency Management Agency (Disaster Relief)]{.underline}

LDOC various (air/ground communications)

USAF NASA

USA FAA

[USCG Puerto Rico Hurricane Warning (safety service)]{.underline}

German (Hamburg) Meteo

**[9 290-9 400 kHz]{.underline}**

There are allocations to:

Various Embassies

Indian Navy

LDOC in Bern, Switzerland (air/ground communications)

US Army The impact on US based services

USAF NASA is summarized n Annex 1

[German Meteo (safety service)]{.underline}

French Military

French Air Force

[Danish Fax Ice Reports (safety service)]{.underline}

In Oct. 2005 this band was used by broadcasters every 5 KHz throughout
the band.

9 352.0 Thales system 3000 ALE auto link bursts using.

**[9 900-9 940 kHz]{.underline}**

[2 safety-related maritime data channels]{.underline}

**Frequencies are also allocated to:**

French Military

USA FAA (aeronautical) The impact on US based services

USAF (aeronautical military) is summarized in Annex 1

U.S. Army

[U.S. NOAA (safety service)]{.underline}

French Navy

Australian Oil Rigs

[Japan Meteo Fax (safety service)]{.underline}

USAF NASA

[AFTN Meteo Azores (aeronautical safety)]{.underline}

**Note: 7 different broadcasts were heard in this band, October 2005**.

In view of the severe consequences listed herein, Resolution **544**
should be suppressed.

Further support for this proposal will be found in Annex 1

***Resolution 729:***

> resolves
>
> "1 that, in authorizing the operation of frequency adaptive systems in
> the MF and HF bands, administrations shall:
>
> 1.1 make assignments in the bands allocated to the fixed and mobile
> services;
>
> 1.2 not make assignments in the bands:
>
> \- allocated exclusively to the maritime or aeronautical mobile (R)
> services;
>
> \- shared on a co-primary basis with the broadcasting service, radio
> determination service or the amateur services;
>
> \- allocated to radio astronomy;
>
> 1.3 avoid use which may affect frequency assignments involving safety
> services made in accordance with Nos. **5.155**, **5.155A** and
> **5.155B**;
>
> 1.4 take into account any footnotes applicable to the proposed bands
> and the implications regarding compatibility;
>
> 2 that frequency adaptive systems shall automatically limit
> simultaneous use of frequencies to the minimum necessary for
> communication requirements;
>
> 3 that, with a view to avoiding harmful interference, the system
> should evaluate the channel occupancy prior to and during operation;
>
> 4 that frequency adaptive systems shall be notified to the Bureau in
> accordance with the provisions of Article **11**,"

Resolution **729 (WRC-97)** deals with implementation of adaptive HF
systems and was not successfully addressed at either WRC-2000 or
WRC-2003. Adaptive HF systems are systems that monitor the propagation
environment on pre-established channels and react to use the optimal
frequencies available for transmission.

Frequency adaptive systems automatically limit simultaneous use of
frequencies to the minimum necessary for communication requirements.
According to ITU-R WP 6E/223, which originated in ITU-R WP 9C, this
characteristic of adaptive systems does not necessarily reduce the
number of frequencies that must be made available to ensure successful
link establishment. Consideration must also be given to maintain quality
of service for uses that fluctuate in response to situations such as
those that arise during Public Protection and Disaster Relief. The
number of frequencies in an adaptive frequency pool is directly
interrelated to the specific HF propagation characteristics based on
time of day, season, sunspot activity, etc. Therefore, efficiency
improves as more frequencies are available. A network of stations is
assigned a number of frequencies over which to communicate, and each
station is assigned a unique address.

Adaptive HF systems have been in use for over 20 years. No special
consideration in the ITU Radio Regulations is required to fully
implement adaptive HF systems. By their nature these systems already
automatically limit simultaneous use of frequencies to the minimum
necessary for communication requirements. These systems also
automatically avoid harmful interference by evaluating the channel
occupancy prior to and during operations.

To fully exploit modern HF technology, the availability of sufficient
and coordinated spectrum resources is crucial, and bandwidth beyond the
typical 3 kHz-channels must be available. The ITU-R WP 8B proposal (WP
8B/135) takes this into account for the MMS.

The channel bonding approach currently in use is based on the use of
several 3 kHz contiguous channels. The advent of HF 64 kbps modems has
begun to provide the ability to utilize HF spectrum for Internet, large
file transfer, and advanced electronic messaging. Loss of HF spectrum
allocated to the fixed and mobile services would constrain the
development of advanced technologies such as messaging, file transfer,
and the Internet.

The required studies related to adaptive HF technology have been
adequately answered. Therefore, Resolution **729** can be suppressed.

However, there is an emergence of high bandwidth requirements in the
form of advanced fixed and mobile HF systems, which does require urgent
study. Therefore a new resolution is required to examine the issues
involved in implementing advanced fixed and mobile HF systems in the
MF/HF bands.

**Proposal:**

**USA/ /1 MOD**

RESOLUTION 351 (WRC-07)

Review of the frequency and channel arrangements in the MF and\
HF bands allocated to the maritime mobile service with a view to\
improving efficiency by considering the use of new digital\
technology by the maritime mobile service

The World Radio communication Conference (Geneva, 2007),

**Reasons**: Editorial

considering

*a)* that the agenda of this Conference included consideration of the
use of new digital technology in the maritime mobile service (MMS) in
the MF and HF bands;

*b)* that the introduction of new digital technology in the MMS shall
not disrupt the distress and safety communications in the MF and HF
bands including those established by the International Convention for
the Safety of Life at Sea (SOLAS), 1974, as amended;

*c)* that changes made in Appendix **17** should not prejudice the
future use of these frequencies or the capabilities of systems or new
applications required for use by the MMS;

*d)* that the need to use new digital technologies in the MMS is growing
rapidly;

*e)* that the use of new digital technology on HF and MF frequencies
allocated to the MMS will make it possible to better respond to the
emerging demand for new services;

*f)* that the HF bands allocated to the MMS for A1A Morse telegraphy are
not used for this purpose and narrow-band direct-printing (NBDP)
allocations are used by only a small number of low volume residual
services at present;

**USA/ /2 MOD**

*g)* that the IMO supports replacing general communication
narrow-band-direct-printing with new HF data exchange technology capable
of delivering MSI

*h)* that the IMO supports the frequencies of Appendix **15,**
concerning NBDP, be retained for the foreseeable future.

*i)* that the ITU Radio communication Sector is conducting ongoing
studies to improve the efficient use of these bands,

noting

a\) that different digital technologies have already been developed and
are in use in the MF and HF bands in several radio communication
services,

b\) that new maritime HF data transfer protocols have already been
developed to replace general narrow-band-direct-printing communications
using Appendix **17** frequencies and mobile frequencies outside
Appendix 17

noting also

that this conference has modified Appendix **17** to permit the use of
various channels or bands identified in the MF and HF bands for the
introduction of new digital technology,

resolves

1 that, in order to provide full worldwide interoperability of equipment
on ships, there should be one technology, or more than one interoperable
worldwide technology to serve the MMS.

2 that, as soon as the ITU‑R studies are completed, a future competent
conference should consider necessary changes to Appendix **17** to
facilitate the use of new technology by the MMS,

invites ITU-R

to finalize studies currently ongoing:

-- to identify future requirements of the MMS;

-- to identify the technical characteristics necessary to facilitate use
of digital systems in the MF and HF bands allocated to the Mobile
Service, taking into account any relevant ITU‑R Recommendations;

-- to identify the digital system(s) to be used in the MF/HF bands by
the MMS;

\- to identify any necessary modifications to the frequency table
contained within Appendix **17**

\- to propose a timetable for the introduction of new digital
technologies and any consequential changes to Appendix **17**;

-- to recommend how digital technologies can be introduced while
ensuring compliance with distress and safety requirements,

instructs the Secretary-General

to bring this Resolution to the attention of the International Maritime
Organization, the International Civil Aviation Organization, the
International Association of Marine Aids to Navigation and Lighthouse
Authorities and the Comité International Radio-Maritime.

**Reasons:** There are still several studies underway that need to be
completed prior to resolving this issue. These studies should be
completed prior to the next Conference after WRC-07, where the
appropriate changes to the RR can be considered.

**USA/ /3 SUP**

RESOLUTION 544 (WRC-03)

Identification of additional spectrum for the\
broadcasting service in the HF bands

**Reasons:** The impact to the fixed and mobile community is too severe
to allocate additional spectrum to the broadcast service that would, in
fact, come from bands assigned to these services. In addition, the long
term need for additional broadcasting spectrum is unknown. Additional
spectrum reallocated to the broadcast service would result in congestion
to the fixed and mobile services, including the MMS. Congestion is now
present in some fixed and mobile services bands. Recent operations
supporting disaster relief demonstrated that fixed and mobile service
requirements exceeded the spectrum allocated to these services.
Frequencies used by the MMS support general and safety related
communications as well as Ship Security Alert Systems communications and
Long Range Tracking and Identification. Any degradation of these
services would have severe consequences.

**USA/ / 4 SUP**

RESOLUTION 729 (WRC-97)

Use of frequency adaptive systems in the MF and HF bands

**Reasons:** The studies under Resolution **729** have been completed.
These studies have indicated that no changes to the RR are required to
facilitate the introduction of adaptive techniques in the MF/HF bands.

**USA/ / 5 ADD**

RESOLUTION USA 1 (WRC-07)

Bandwidth Requirements for Advanced Fixed and Mobile HF Technologies in
the 3 -- 30 MHz Band

The World Radio communication Conference (Geneva, 2007),

considering

*a)* that there are a limited number of fixed and mobile 3 kHz bandwidth
channels, and many channel bandwidths are below 500 Hz, in the planned
portions of the 3-30 MHz band;

*b)* that trials of advanced fixed and mobile HF frequency systems have
demonstrated their feasibility and their associated spectrum efficiency;

*c)* that advanced fixed and mobile HF frequency systems require larger
channel bandwidth assignments greater than the 3 KHz assignments that
are currently common.

noting

that some advanced fixed and mobile HF frequency adaptive systems
utilize bandwidths of up to 12 kHz to support HF electronic messaging,
HF Internet, and HF file transfer;

resolves to invite ITU-R

1 to determine the feasibility of changing the Radio Regulations to
provide for the use of wider bandwidths to support advanced fixed and
mobile HF systems in the 3 -- 30 MHz band;

2 to bring the results of these studies to the attention of WRC‑10

**Reasons:** Urgent studies are required to determine the suitability of
changing the radio regulations to allow for wider bandwidths to the
fixed and mobile services to accommodate advanced HF adaptive systems.

**\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_**

**ANNEX 1**

IWG-4

Agenda Item 1.13

**The case for no additional spectrum for any service**

IWG-4 has received inputs from NASB, from the HF Users Group, and a
modified proposal by Don Messer. Subsequently, there was an additional
modified submission from the HF Users Group and numerous individual
submissions calling for "no additional broadcast spectrum". The
overwhelming majority of opinion was in favour of "no additional
spectrum".

There have been numerous discussions about the detailed wording of the
submitted papers. However, such discussions are essentially irrelevant
until the very simple, very straightforward question and entire focus of
this discussion is settled: "yes" or "no" to additional HF broadcast
spectrum. With this focused idea, following are some relevant
considerations.

1.  The decision has already been made to give the broadcast service
    additional spectrum in 2007 (100 KHz) and again in 2009 (50 KHz).

2.  The broadcast justification for further additional spectrum does not
    take into account the potential for spectrum saving through the
    efficient use of digital broadcasting. The broadcast need for
    spectrum is likely to decline or, at best, is uncertain. This is
    based on the advent of new technologies such as internet and
    satellite radio. This is made clear in recent public announcements
    from major broadcasters.

3.  The demand for mobile services and supporting spectrum is growing
    and forecast to continue growing. There is ample documentation and
    evidence of this in the submissions from the various emergency
    services operators..

4.  Mobile services already suffer from broadcast interference. New
    broadcaster allocations would increase congestion. Broadcast
    services are already operating in the Maritime Mobile Appendix 17
    spectrum that is shared with the fixed service.

5.  Broadcast services are already transmitting on the Appendix 17
    maritime mobile exclusive frequencies between 6200 and 6280 KHz and
    causing interference to MMS communications.

6.  If additional spectrum is transferred from Fixed & Mobile to
    Broadcasting, there will be a serious deterioration in essential and
    critical safety services, including maritime security alerting, long
    range tracking and identification and emergency response services.

7.  If no additional spectrum is transferred to broadcasting, there will
    be no serious impact on essential, critical or safety related
    services.

8.  Co-primary status between broadcasters and fixed and mobile is
    unworkable due to time needed to arrange for broadcasters to vacate
    the spectrum when other means of communication are unavailable to
    first responders or safety of life applications.

**Table 1**

**Issues and comparisons**

+-----------------------+-----------------------+-----------------------+
|                       | # HF Broadcast        | # HF Fixed & Mobile   |
|                       |                       |                       |
|                       |                       | (Includes Maritime    |
|                       |                       | Mobile)               |
+-----------------------+-----------------------+-----------------------+
| # Service             | One-way dissemination | Two-way               |
|                       | of useful and         | communications        |
|                       | important             | supporting essential  |
|                       | information.          | operations and        |
|                       | Non-critical.         | critical safety       |
|                       |                       | related services.     |
|                       | High power.           |                       |
|                       |                       | Low power. MMS        |
|                       |                       | services are high     |
|                       |                       | volume with high      |
|                       |                       | frequency occupancy.  |
+-----------------------+-----------------------+-----------------------+
| # Service Area        | Global Land Masses    | Global Land & Sea     |
+-----------------------+-----------------------+-----------------------+
| #                     | Internet, satellite,  | Satellite in some     |
|                       | FM broadcast.         | areas.                |
| # Alternatives        |                       |                       |
+-----------------------+-----------------------+-----------------------+
| #                     | Alternative           | New technologies      |
|                       | dissemination         | offering improved     |
| #                     | technologies such as  | efficiencies and      |
|                       | the internet,         | automation have       |
| # Service             | satellite and FM      | increased demand.     |
|                       | broadcast have        | Concerns about        |
| # Demand              | reduced the demand to | security and single   |
|                       | the extent that some  | points of failure in  |
|                       | HF broadcasters have  | satellite systems     |
|                       | shut down.            | have also increased   |
|                       |                       | the attractiveness of |
|                       |                       | and demand for HF     |
|                       |                       | systems.              |
+-----------------------+-----------------------+-----------------------+
| #                     | New, more spectrum    | The new technologies  |
|                       | efficient             | require increased     |
| #                     | technologies such as  | bandwidth for         |
|                       | digital broadcasting  | increased throughput. |
| #                     | and SSB coupled with  | This coupled with     |
|                       | reduced service       | increased service     |
| #                     | demand point towards  | demand and new        |
|                       | future reduced        | service providers     |
| # Spectrum            | spectrum needs.       | entering the market   |
|                       | Intelligent,          | is having a dramatic  |
| # Demand              | propagation based     | upward impact of      |
|                       | single frequency      | spectrum demand. The  |
|                       | selection instead of  | attacks of Sept 11    |
|                       | multiple frequency    | changed how HF is     |
|                       | broadcasts also       | used and dramatically |
|                       | reduces spectrum      | increased the demand. |
|                       | needs.                |                       |
+-----------------------+-----------------------+-----------------------+
| # International       | Any regulatory        | Any regulatory        |
|                       | changes will have     | changes will have     |
| # Implications        | severe international  | severe international  |
|                       | implications.         | implications.         |
+-----------------------+-----------------------+-----------------------+

Conclusion:

This scenario does not support the concept of taking spectrum from Fixed
and Mobile and giving it to Broadcasting.

**POTENTIAL IMPACT ON MOBILE SERVICES**

The following frequency ranges were proposed for allocation to the
broadcast service. Such an allocation would infringe upon the following
service providers.

**[5 060-5 100 kHz]{.underline}**

[Globewireless:]{.underline}

6 frequencies would have to shut down.

[Other Services:]{.underline}

Sailmail, USAF, FBI, USCG, US NASA, US Navy. FEMA, US Customs, UK
Military, Dutch Navy, Russian Military, Nato and Nato Link 11, Canadian
Navy, Pacific Loran Net, Malaysian Navy Weather, AFTN (Aeronautical
Fixed Telecommunications Network) Net Control, RAF and various Antarctic
bases.

**[5 840-5 900 kHz]{.underline}**

[Globewireless]{.underline}

8 frequencies would have to shut down.

2 planned frequencies would not be available.

[Other Services.]{.underline}

Sailmail, FEMA, FAA, US DEA, USAF, USN/MARS, US NASA, US DOE, USCG,
Shipcom, KKL Radio planned frequencies x 2, Swedish Maritime Meteo,
Nato, Algerian Diplo. Danish Ice Info, Korean Meteo, Spanish Civil Guard
numerous, Canadian AF and Italian Meteo. Antarctic Meteo, Diego Garcia
Meteo, Danish Marine Info, China Meteo, Russian Meteo and Ice Reports,
various diplo. Services, S African Transport and Ecuador Time Signals.

**[7 350-7 600 kHz]{.underline}**

[Globewireless]{.underline}

6 frequencies would have to shut down.

[Other Services]{.underline}

US Military x 3, US Navy, FEMA, US NASA, US FAA, USAF, USAF/MARS, USCG,
US Bell Tel Net, Nato x2, Albanian Military x 3, Israel AF, Spanish
Civil Guard x 4, Venezuelan Military x 2, German Military, Italian
Police, Russian Navy. Tors Cove Marine Radio (Canada), French Military,
UK Military, Antarctic Meteo, Diego Garcia Meteo, Danish Marine Info,
China Meteo, Russian Meteo and Ice Reports, various diplo. Services, S
African Transport, and Ecuador Time Signals.

**[9 290-9 400 kHz]{.underline}**

[Globewireless]{.underline}

Could not find a useable frequency.

[Other Services]{.underline}

Cruise Email, US Army, US DOE, US Navy, US NASA, Swedish Maritime Meteo,
Spanish Thales System, Tashkent Meteo, Russian Meteo, French AF, S
African Oil Rigs, Danish Ice Reports, AFTN

**[9 900-9 940 kHz]{.underline}**

[Globewireless]{.underline}

Planned 4 channels but could not find any due to extensive broadcast
interference.

[Other Services]{.underline}

US FAA, USAF, US Army, FAA, US NOAA, US NASA, S African Police Net, UK
Naval and Antarctic Bases.

# CONCLUSION

*Considering that:*

1)  There is overwhelming opposition to allocating additional Fixed &
    Mobile spectrum to Broadcasting.

2)  It is in the IWG charter to provide to the FCC "proposals for WRC
    07"

**[It is proposed that:]{.underline}**

IWG-4 report to the WAC that there is widespread support, with the
dissenting view of the broadcasters, for "no new spectrum allocations"
and the suppression of 544.

**[INFORMAL WORKING GROUP 5 (IWG-5)]{.underline}**

**[Regulatory Issues]{.underline}**

**DOCUMENT WAC/106(27.04.06):**

**DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE**

Agenda Item 1.10: to review the regulatory procedures and associated
technical criteria of Appendix 30B without any action on the allotments,
the existing systems or the assignments in the List of Appendix 30B.

**Background Information:**

As stated in § 1.1 of Appendix 30B the objective of the Plan "is to
guarantee in practice, for all countries, equitable access to the
geostationary-satellite orbit in the frequency bands of the
fixed-satellite service (FSS) covered by this Appendix". While the plan
has been in force for some 18 years, little use has been made of the
precious spectrum (1600 MHz) regulated by this appendix, particularly as
compared to the other bands allocated globally to the FSS. Moreover,
numerous administrations have complained that the technical parameters
and procedures are outdated, difficult to apply, and exceedingly
time-consuming. For these reasons, administrations agreed to include
consideration of this matter on the agenda for WRC-07. Several ITU-R
preparatory meetings (including WP-4A and the Special Committee) as well
as regional bodies have been studying the related issues for several
years.

Taking the foregoing into consideration, the United States considers
that the conditions for the use the Appendix 30B frequencies can be
improved and optimized for ITU Member States that want to implement
their allotments as well as for Administrations that want to use
capacity (orbit/spectrum resources) beyond that in the Plan. While some
studies are continuing, and we expect to continue to participate in the
collaborative activities in the regional bodies, we offer a number of
proposals below to facilitate fulfilment of the aspirations of *all*
administrations. We may expect to augment these proposals when further
information becomes available in the preparatory activities leading to
the WRC.

Some key points of these proposals are discussed in greater detail,
below.

[Processing of Submissions]{.underline}

One of the great concerns expressed by administrations is the lengthy
process involved in the conversion of allotments into assignments. While
the current *sequential* processing of submissions does allow for an
accurate consideration of the effect of each submission, the time taken
for this process is prohibitively long. It has been estimated that under
the current sequential approach the BR is able to process about 8
Appendix 30B submissions (with the possibility of simultaneous
submissions from the same administration this number can be slightly
increased). On the other hand, on 24 April 2006 there were 98 of those
submissions in the BR queue. This corresponds to a backlog of at least 5
years which is very large, especially when compared to the 8-year limit
for bringing Appendix 30B frequency assignments into use. Preparatory
discussions have highlighted the merits and disadvantages resulting of
the two approaches: 1) Continuation of Sequential Processing and 2)
Non-Sequential Processing of assignment applications.

With sequential processing, the reference situation is updated only
after the new submission enters the List and no other submission will be
examined until the fate of each one of the previous submissions has been
decided, either by including the associated network in the List or by
removing it from the queue. As a result, no submission will be examined
based on a certain reference situation and later enter the List when
this reference situation has changed.

A non-sequential processing of submissions[^4] offers the possibility of
a greatly simplified and expedited conversion of allotments into
assignments (with or without modifications) and will also reduce the
time for processing other submissions. It does not prevent the
occurrence of a situation in which a submission is examined under a
certain reference situation and enters the List after satisfying the
requirements resulting from this examination when the reference
situation has already changed. In our view the marginal inaccuracy that
may result from this kind of processing will be far outweighed by the
benefits of a non-sequential processing.

It is also important to note that non-sequential processing means that a
proposed assignment B may enter the List before an assignment A received
by the BR at an earlier date. However, if the later assignment B affects
A (i.e. does not meet the Appendix 30B protection criteria), definitive
registration of B cannot occur until A gives its agreement or B changes
its parameters so that protection of A is ensured in accordance with the
Appendix 30B criteria.

If we consider a submission under Article 6 that is not the conversion
of an allotment into an assignment without any change to the
characteristics of the allotment, it becomes clear that a non‑sequential
processing is more flexible and can potentially lead to a more efficient
use of orbit/spectrum resources. Under sequential processing an Article
6 submission (different from conversion of an allotment without any
change) that enters the List and expires after the 8-year regulatory
period without being brought into use can prevent many other submissions
from staying in the queue. Under non-sequential processing, Article 6
submissions could stay in the queue and eventually enter the List
through a coordination agreement or after the expiration of the
assignments that were blocking their access. As a consequence of
proposing a non-sequential processing of submissions the concept of
pre-determined arc (PDA) currently included in the Appendix 30B
procedures has to be eliminated since it only fits in a sequential
processing approach. It may be argued that elimination of the PDA
concept removes some flexibility in the sense that an Article 6
submission cannot change orbital locations associated with allotments or
assignments in the queue. However, this feature has also some severe
drawbacks, such as undesirable and/or unexpected changes of orbital
locations which also generate uncertainty for those administrations that
have proposed assignments in the queue or are planning to propose the
conversion of an allotment. This uncertainty is even more damaging
because of the large backlog of submissions discussed above. Such large
backlog gives administrations very little time to adapt to an ever
changing environment.

For the reasons discussed above, a new text for Article 6 similar to
that appearing in Annex 2 of the output of the WP-SC December 2005
meeting is proposed here.

[Existing Systems]{.underline}

Existing systems are associated with FSS satellite networks that had
already been submitted to the ITU BR when the Plan was developed. By
now, the frequency assignments in these networks have either been
brought into use and become assignments in the List or have been
cancelled. Therefore there seems to be a consensus that the so called
Part B of the Plan is not required any more.

However, current § 9.2 states that all the frequency assignments
associated with existing systems would have to cease operation 20 years
after the entry into force of the Plan, i.e. 16 March 2010. In this
respect, the output of the SC-WP December 2005 meeting recognizes that
"it would be neither appropriate nor practical to abruptly discontinue
on this date the operation of all "existing systems" in the List, in
particular those in which either the uplink or downlink stands from an
additional use or other networks in unplanned bands".

The proposal presented below treats existing systems as suggested in
Annex 2 of the output of the SC-WP December meeting. By not
distinguishing assignments in the List that are associated with existing
systems from those that stem from allotments or from subregional
systems, the concept of existing systems can be eliminated and
continuity of their operation can be ensured.

[Subregional Systems and Additional Uses]{.underline}

Subregional systems were introduced in the procedures of Appendix 30B in
order to allow neighboring countries to combine their allotments into a
system with regional coverage. For this reason, the submission of
subregional systems in the current regulations contemplates the
possibility of suspending allotments of the Member States participating
in the system. However, up to now the submissions for subregional
systems have never included requests for suspension or partial
suspension of allotments. Therefore, subregional systems have actually
been implemented as additional uses in the sense that they will coexist
with allotments and assignments in the same way additional uses do.

Given all the above, there is no reason for the distinction between
these two types of use of Appendix 30B frequencies and in the proposals
below these two categories are merged into one category, referred to as
"additional uses".

Currently, the main distinctions between the two categories are : (i)
subregional systems can explore the PDA concept and additional uses
cannot ; (ii) frequency assignments of subregional systems have an
unlimited period of validity while those of additional uses are limited
to 15-year period of validity. In the proposals below the distinction
with respect to the application of the PDA is not relevant since this
concept is being eliminated while the period of validity of frequency
assignments of the new category of additional uses would not be limited.

[Multinational Service Areas]{.underline}

Currently, § 2.6 of Appendix 30B limits the service area associated with
additional uses to the national territory of the administration
submitting the additional use "unless otherwise agreed". The Rule of
Procedure of § 2.6 states that additional uses may have multinational
service areas if agreement from other administrations included in the
service area are obtained. It is being proposed here that assignments
resulting from modifications of allotments or submitted as additional
uses can have multinational service areas. It is noted that if an
administration A has its territory included in the service area of an
additional use proposed by another administration:

(i) Any allotments or assignments of Administration A are protected
    because a submission requesting the use of Appendix 30B frequencies
    for an additional use has to be compatible with allotments,
    assignments in the List and assignments for which complete
    information has been received by the BR;

(ii) Terrestrial systems in the territory of administration A are
     protected by the power-flux density limits of Article 21 of the
     Radio Regulations;

(iii) Any emission from the territory of administration A intended for
      reception at the space station under consideration has to be
      authorized by this administration and the provision of service
      through the deployment of receive earth stations in the territory
      of administration A can only occur with its approval.

**APPENDIX 30B (Rev. WRC-2000)**[^5]

Provisions and associated Plan for the fixed-satellite service\
in the frequency bands 4 500-4 800 MHz, 6 725-7 025 MHz,\
10.70-10.95 GHz, 11.20-11.45 GHz and 12.75-13.25 GHz

**USA/ /01 NOC Article 1 and 2.1** ARTICLE 1

Objective of the provisions and associated Plan

1.1 The objective of the procedures prescribed in this Appendix is to
guarantee in practice, for all countries, equitable access to the
geostationary-satellite orbit in the frequency bands of the
fixed-satellite service covered by this Appendix.

1.2 The procedures prescribed in this Appendix shall in no way prevent
the implementa­tion of assignments in conformity with Part A of the Plan.

ARTICLE 2

Definitions

2.1 *Conference:* World Administrative Radio Conference on the Use of
the Geostationary-Satellite Orbit and the Planning of Space Services
Utilizing It, First Session, Geneva, 1985; Second Session, Geneva, 1988.

**Reasons:** The United States supports the objectives stated in Article
1 and the definition in 2.1.

**USA/ /02 MOD 2.2**

2.2 *Plan:* The Plan for the fixed-satellite service in the frequency
bands contained in this Appendix~~consisting of two parts:~~

~~*a)* Part A, containing the national allotments;~~

~~*b)* Part B, containing the networks of existing systems.~~

**Reasons:** Existing systems are associated with FSS satellite networks
that had already been submitted to the ITU BR when the Plan was
developed. By now, the frequency assignments in these networks have
either been brought into use and become assignments in the List or have
been cancelled. Therefore there is no need for keeping the concept of
Part B of the Plan.

**USA/ /03 MOD 2.3**

2.3 *Allotment:* For the purpose of this Appendix, an allotment
comprises:

-- a nominal orbital position;

-- a bandwidth of 800 MHz (up-link and down-link) in the frequency bands
listed in Article 3 of this Appendix;

-- a service area for national coverage.

~~-- generalized parameters as defined in Annex 1 to this Appendix;~~

~~-- a predetermined arc (PDA).~~

**Reasons:** The generalized parameters are not considered to be
necessary since examination of the compatibility of any proposed
assignment with allotments in the Plan or assignments in the List can be
conducted without calculating such parameters. As discussed and
justified in connection with Article 6 below, a non-sequential
processing of submissions is being proposed here and such approach is
not compatible with retention of the PDA concept.

**USA/ /04 SUP 2.4**

~~2.4 *Existing systems:* Those satellite systems, in the frequency
bands covered by this~~

~~Appendix:~~

~~*a)* which are recorded in the Master International Frequency Register
(MIFR); *or*~~

~~*b)* for which the coordination procedure has been initiated; *or*~~

~~*c)* for which the information relating to advance publication was
received by the Radiocommunication~~

~~Bureau before 8 August 1985,~~

~~and which in all cases are listed in Part B of the Plan.~~

**Reasons:** As noted in connection with **USA/ /02 MOD**, existing
systems are either assignments in the List or have been cancelled. As
discussed with respect to **No. 9.2** below, assignments in the List
that are associated with existing systems should not be distinguished
from any other assignments in the List and, as a consequence, there is
no need to define existing systems.

**USA/ /05 SUP 2.5**~~2.5 *Subregional systems:* For the purpose of the
application of the provisions of this~~

~~Appendix, a subregional system is a satellite system created by
agreement among neighbouring~~

~~countries Member States of the ITU or their authorized
telecommunications operating agencies~~

~~and intended to provide domestic or subregional services within the
geographical areas of the~~

~~countries concerned~~

**USA/ /06 MOD 2.6**

2.6 *Additional use:* For the application of the provisions of this
Appendix, additional uses shall ~~be those of an administration:~~[be
those associated with submissions for use of Appendix 30B frequencies
that do not involve the conversion of an allotment into an assignment
with or without modifications to the characteristics of the allotment.
Therefore, additional uses correspond to the use of capacity
(orbit/spectrum resources) beyond that in the Plan. Submissions for
additional uses may also be made by a number of administrations with one
among them designated as the notifying administration.]{.underline}

~~*a)* which has a requirement whose characteristics differ from those
used in the preparation of Part A of the Plan; any such requirement
shall be limited to the national coverage, taking into account technical
constraints, of the administration concerned, unless otherwise agreed.
Additionally, such requirement can be met only if the allotment of the
interested administra­tion, or part of this allotment, has been converted
into an assignment, or if the requirement cannot be met by the
conversion of the allotment into an assignment;~~

~~*b)* which requires the use of all or part of its national allotment
that has been suspended in accordance with § 6.54 of Article 6;~~

~~*c)* which intends to participate in a subregional system using the
procedures of Section III of Article 6, instead of using the procedures
of Section II thereof.~~

**Reasons:** The concepts of subregional systems and additional uses
have been introduced in the Appendix 30B Plan with different
motivations. In particular, subregional systems intended to allow
neighboring countries to combine their allotments into a system with
regional coverage. For that reason, the possibility of suspending
allotments was associated with subregional systems. However, up to now
the submissions for subregional systems have never included requests for
suspension or partial suspension of allotments in application of and
such submissions have been implemented in a way that does not affect
allotments in the Plan or assignments in the List. Therefore,
subregional systems have actually been implemented as "additional uses"
in the sense that they will coexist with allotments and assignments as
additional uses do. In view of the above, it is proposed to eliminate
the category of subregional systems and to have a simplified definition
for 'additional uses', capable of accommodating requirements being
currently met by the two existing categories.

**USA/ /07 NOC Articles 3 and 4** ARTICLE 3

Frequency bands

3.1 The provisions of this Appendix shall apply to the fixed-satellite
service in the frequency bands between:

-- 4 500 and 4 800 MHz (space-to-Earth);

-- 6 725 and 7 025 MHz (Earth-to-space);

-- 10.70 and 10.95 GHz (space-to-Earth);

-- 11.20 and 11.45 GHz (space-to-Earth);

-- 12.75 and 13.25 GHz (Earth-to-space).

ARTICLE 4

Execution of the provisions and associated Plan

4.1 The Member States of the Union shall adopt, for their
fixed-satellite service stations operating in the frequency bands
referred to in this Appendix, the characteristics consistent with those
specified in the Plan and its associated provisions.

4.2 The Member States of the Union shall not change the characteristics,
or bring into use assignments to fixed-satellite service stations, or
stations in the other services to which these frequency bands are
allocated, except as provided for in the Radio Regulations and the
appropriate Articles and Annexes of this Appendix.

**Reasons:** Articles 3 and 4 need not be changed.

ARTICLE 5     (WRC-03)

The Plan and the associated List of assignments

**USA/ /08 MOD 5.1** 5.1 The Plan consists of ~~*a)* Part A containing
the~~ allotments~~;~~ ~~*b)* Part B containing the networks of existing
systems~~.

**Reasons:** As discussed above there is no need to retain the concepts
of Part A and Part B because all frequency assignments associated with
existing systems have either been included in the List as assignments or
have been cancelled.

**USA/ /09 MOD 5.2** 5.2 A List of assignments ~~as described in
§ 5.5~~will be associated with the [Plan and will contain:]{.underline}

[(i) assignments resulting from the conversion of allotments (with or
without modifications to the characteristics of the allotments in the
Plan);]{.underline}

[(ii) assignments resulting from submissions for additional
uses.]{.underline}

**Reasons:** This is a consequence of the elimination of Part B and of
the merger of the categories "subregional systems" and "additional
uses". In view of that, instead of describing the assignments in a
separate provision (§ 5.5 in the current Appendix 30B), the description
was also included in 5.2.

**USA/ /10 SUP 5.3 and 5.4** ~~5.3 The predetermined arc (PDA) is a
segment of the geostationary-satellite orbit (GSO) about a nominal
orbital position intended to provide flexibility in the Plan.~~

~~*a)* The size of the PDA depends on the stage of development of the
satellite system:~~

~~-- for a system in the *pre‑design stage*, the PDA is the fixed
portion of the GSO defined by the intersection between a segment of ±10°
about the nominal orbital position established at the Conference and the
corresponding service arc. After twenty years from the date of entry
into force of this Appendix, the PDA for a system in the pre-design
stage is the fixed portion of the GSO defined by the intersection
between a segment of ±20° about the nominal orbital position established
at the Conference and the corresponding service arc, provided that the
minimum elevation angle after the application of this procedure is not
less than 20° or than the value indicated for each climatic zone in
Annex 1 to this Appendix, whichever is larger, for all allotments
affected;~~

~~-- for a system in the *design stage*, the PDA is the fixed portion of
the GSO defined by the intersection between a segment of ±5° about the
nominal orbital position as may be modified by the application of this
Appendix and the PDA defined for the pre-design stage;~~

~~-- for a system in the *operational stage*, the PDA will be considered
as being zero.~~

~~*b)* The stage of development to be associated with allotments in Part
A and assignments in the List derived from allotments in Part A, with
existing systems in Part B, with subregional systems or additional uses,
is given in Table 1.~~

~~*c)* An administration will not be considered to be affected if the
nominal orbital position associated with its allotment in the Plan or
with its assignments in the List is moved within the corresponding PDA
while keeping an aggregate *C */* I* ≥ 26 dB. WRC‑03 decided that for
submissions received as from 5 July 2003 the value *C */* I* ≥ 23 dB
shall be applied.     (WRC-03)~~

~~TABLE 1~~

~~5.4 The PDA concept may be applied only:~~

~~-- to provide an allotment to a new Member State of the ITU;~~

~~-- in the process of conversion of an allotment into an assignment;~~

~~-- to accommodate a subregional system;~~

~~-- to resolve incompatibilities with existing systems (except for the
implementation of additional uses);~~

~~-- to resolve incompatibilities with the assignments in the List
(except for the implementation of additional uses).~~

**Reasons:** §5.3 and §5.4 are being suppressed because, as discussed
and justified in connection with Article 6 below, a non-sequential
processing of submissions is being proposed here and such approach is
not compatible with retention of the PDA concept.

**USA/ /11 SUP 5.5** ~~5.5 The List of Assignments to be associated with
the Plan will contain:~~

~~*a)* assignments derived from allotments in Part A of the Plan;~~

~~*b)* assignments relating to existing systems in Part B of the Plan;~~

~~*c)* assignments resulting from the introduction of subregional
systems;~~

~~*d)* assignments relating to additional uses.~~

**USA/ /12 SUP 5.6** ~~5.6 Whenever a new assignment is entered in this
List, the Bureau shall inform admin­istrations in its International
Frequency Information Circular (BR IFIC), indicating the character­istics
of the assignment concerned.~~

**Reasons:** § 5.5 is being suppressed because description of the
assignments in the List was incorporated in § 5.2. § 5.6 is being
suppressed because its content is being included in Article 6.

ARTICLE 6     (Rev.WRC-03)

Procedures for implementation of the Plan and regulation of\
the fixed-satellite service in the planned bands**     (WRC-03)**

**USA/ /13 SUP Article 6**

**Reasons:** Given the simplifications introduced in the previous
Articles, namely elimination of Part B and merger of the categories
"subregional systems" and "additional uses", Article 6 can be
significantly shortened. In this respect, it became easier to suppress
the current Article 6 and to propose a completely new text.

**USA/ /14 ADD Article 6**

ARTICLE 6     (Rev.WRC-03)

Procedures for implementation of the Plan and regulation of\
the fixed-satellite service in the planned bands     (WRC-03)

6.1 When an administration intends to

-   convert an allotment into an assignment (with or without
    modifications to the allotment in the Plan),

-   introduce an additional use or

-   modify the characteristics of assignments in the List,

> it shall, not earlier than eight years and not later than two years
> before the planned date of bringing the assignment into use, send to
> the Bureau the information specified in Appendix 4[^6].

2.  Submission of an additional use can also be made by a group of named
    administrations in which case one among these administrations
    (notifying administration) will be designated to act on their behalf
    in the application of the provisions of this Appendix.

3.  If the information received by the Bureau under §6.1 is found to be
    incomplete, the Bureau shall immediately seek from the
    administration concerned any clarification required and information
    not provided.

4.  Upon receipt of a complete (Appendix 4) notice relating to the
    proposed assignment, the Bureau shall examine each notice as to its
    conformity with the Table of Frequency Allocations and the other
    provisions[^7] of these Regulations, except those provisions
    relating to conformity with the fixed-satellite service Plan.

5.  When the examination of all or parts of the notice with respect to §
    6.4 leads to an unfavourable finding, the relevant part of the
    notice shall be returned to the notifying administration with an
    indication of the appropriate action.

6.  When the examination of all or parts of the notice with respect to §
    6.3 leads to a favourable finding, the Bureau shall use the method
    of Annex 4, with respect to the relevant part of the notice to
    determine administrations whose

> \- allotments in the Plan;
>
> \- assignments which appear in the List;
>
> \- assignments for which the Bureau has previously received complete
> information in accordance with this Article; 

are considered as being affected.

6.7. The Bureau shall publish, in a Special Section of its International
Frequency Information Circular (BR IFIC), the complete information
received under § 6.1, together with the names of the affected
administrations and the corresponding allotments in the Plan,
assignments in the List and/or assignments for which the Bureau has
previously received complete information in accordance with this
Article. The Bureau shall immediately send the results of its
examination to the administration proposing the assignment.

6.8. The Bureau shall send a telegram/fax to the administrations listed
in the Special Section of the BR IFIC drawing their attention to the
information it contains and shall send them the results of its
examination.

6.9. Comments from administrations on the information published pursuant
to § 6.7 shall be sent to the administration proposing the assignment
with a copy to the Bureau.

6.10. An administration which considers that it should have been
identified in the publication referred to under § 6.7 above shall,
within four months of the date of publication of its relevant BR IFIC,
and identifying the affected allotment, assignment or proposed
assignment, request the Bureau to include its name in the publication.
The Bureau shall study this information on the basis of Annex 4 and
shall inform both this administration and the administration proposing
the assignment of its conclusions. Should the Bureau agree to the
administration\'s request, it shall publish an addendum to the
publication under § 6.7.

6.11. An administration that has not notified its comments either to the
administration seeking agreement or to the Bureau within a period of
four months following the date of its BR IFIC referred to in § 6.7 shall
be deemed to have agreed to the proposed assignment.

6.12. Thirty days prior to the expiry of the same four-month period, the
Bureau shall dispatch a reminder telegram or fax to an administration
which has not made its comments under § 6.9, bringing the matter to its
attention.

6.13. After expiry of the deadline for comments in respect of the
proposed assignment, the Bureau shall, according to its records, publish
a Special Section indicating the list of admin­istrations whose
agreements are required for completion of the Article 6 procedure.

6.14. If no comments have been received on the expiry of the four-month
period specified in § 6.10 and 6.11, or if agreement has been reached
with the administrations which have made comments and with which
agreement is necessary, the administration proposing the new or modified
assignment may request the Bureau to have the assignment entered into
the List, indicating the final characteristics of the frequency
assignment together with the names of the administrations with which
agreement has been reached. For this purpose, it shall send to the
Bureau the information specified in Appendix 4. In submitting the
notice, the administration may request the Bureau to examine the notice
simultaneously under § 6.16 (entry into the List) and § 8.8, 8.9
(notification).

6.15. If the information received by the Bureau under § 6.14 is found to
be incomplete, the Bureau shall immediately seek from the administration
concerned any clarification required and information not provided[^8].

6.16. Upon receipt of a complete (Appendix 4) notice relating to the
proposed assignment under § 6.14, the Bureau shall determine whether the
this Appendix 4 submission is identical to the initial notice. If this
is the case, the submission under § 6.14 will be treated as specified in
§ 6.20. However, if, in seeking agreement, an administration modifies
its initial notice, the Bureau shall conduct the examination described
in § 6.17 through § 6.19.

6.17. The Bureau shall examine the Appendix 4 information received under
§ 6.14 with respect to its conformity to the Table of Frequency
Allocations and the other provisions[^9] of these Regulations, except
those provisions relating to conformity with the fixed-satellite service
Plan.

6.18. When the examination of all or parts of the § 6.14 submission with
respect to § 6.17 leads to an unfavourable finding, the relevant part of
the notice shall be returned to the notifying administration with an
indication of the appropriate action.

6.19. When the examination of all or parts of the modifications with
respect to § 6.17 leads to a favourable finding, the Bureau shall use
the method of Annex 4 with respect to the relevant part of the notice to
identify administrations for which agreement has not been already
obtained whose

> \- allotments in the Plan;
>
> -assignments which appear in the List;
>
> -assignments for which the Bureau has previously received complete
> information in accordance with this Article;  
>
> are considered as being affected by the notice submitted under
> § 6.14[^10].

6.20. In the event of a favourable finding with regard to compatibility
under § 6.19, the Bureau shall enter the proposed assignment in the List
and publish in a Special Section to its BR IFIC the information received
under § 6.14 together with the names of any administrations identified
under § 6.13 and § 6.19 with which the provisions of this Article have
been successfully applied. The administration proposing the assignment
may then notify the assignment in accordance with Article 8.

6.21. When the examination under § 6.19 leads to an unfavourable
finding, the Bureau shall publish in a Special Section of its BR IFIC
the information received under § 6.14 together with the names of any
administrations with which the provisions of this Article have been
successfully applied as well as the administrations with which they have
not.

6.22. After addressing the remaining coordination requirements
identified under § 6.21, the administration proposing the new or
modified assignment may request the Bureau to have the assignment
entered into the List, indicating the final characteristics of the
frequency assignment together with the names of the administrations with
which agreement has been reached. For this purpose, it shall send to the
Bureau the information specified in Appendix 4. In submitting the
notice, the administration may request the Bureau to examine the notice
simultaneously for entry into the List and for notification (§ 8.8,
8.9).

6.23. The Bureau will then conduct the examination specified in § 6.15
and § 6.16 (comparing the Appendix 4 submission under examination with
that previously submitted under § 6.14 or § 6.22). If necessary,
examination under § 6.17 through § 6.19 is then conducted.

6.24. After a notice is published under § 6.21, should the notifying
adminis­tration resubmit the notice and insist upon its reconsideration,
the Bureau shall enter the assignments provisionally in the List with an
indication of those administrations whose assignments were the basis of
the unfavourable finding[^11]. The entry shall be changed from
provisional to definitive recording in the List only if the Bureau is
informed that the new assignment has been in use, together with the
assignments which were the basis for the unfavourable finding, for at
least four months without any complaint of harmful interference being
made or if the assignments which were the basis for the unfavourable
finding are cancelled.

6.25. When an assignment is entered provisionally in the List under the
provisions of § 6.24, the Bureau shall not update the reference
situation for the Plan and the List until the recording is changed to
definitive in accordance with § 6.24.

6.26. Should harmful interference be caused by an assignment included in
the List under § 6.24 to any assignment in the List which was the basis
of the disagreement, the administration using the frequency assignment
included in the List under § 6.24 shall, upon receipt of advice thereof,
immediately eliminate this harmful interference.

6.27. When a frequency assignment included in the List is no longer
required, the notifying administration shall immediately inform the
Bureau.

6.28. The date of bringing into use of a frequency assignment may be
extended by the notifying administration up to no more than eight years
from the date of receipt by the Bureau of the complete Appendix **4**
information under § 6.1.

6.29. Any frequency assignment that

\- is no longer required, as per information provided by the notifying
administration to the BR in accordance with § 6.27; or

\- has not been brought into use within the period specified in § 6.28

shall be canceled by the BR.

30. Assignments canceled under § 6.29 that result from the conversion of
    an allotment (with or without modifications to the characteristics
    of the allotment) shall be transferred back to the Plan without any
    changes to the technical parameters or orbital location that they
    had in the List in the case of a definitive recording and shall be
    transferred back to the Plan with the characteristics of the
    original allotment in the case of a provisional entry in the List.

31. After taking the action described in § 6.29, the BR shall update the
    reference situation of all allotments in the Plan and assignments in
    the List, as appropriate.

32. The procedure of this Article may be applied by the administration
    of a new ITU Member State in order to include a new assignment in
    the List over its national territory. The next World
    Radiocommunication Conference may then be requested to consider the
    inclusion in the Plan of a new allotment over the national territory
    of the new Member State with the characteristics of its assignment
    that has entered the List after successful completion of the
    procedure described here.

33. Should the assignments mentioned in § 6.32 over the national
    territory of the administration not be brought into use within the
    regulatory time-limit specified in § 6.28, they would be retained in
    the List until the end of the World Radiocommunication Conference
    immediately following the successful completion of the procedure
    referred to in § 6.32, and thereafter they shall be removed from the
    List.

34. An administration may, at any stage in the procedure described in
    this Article, or before applying it, request the assistance of the
    Bureau.

**Reasons:** The changes proposed in Article 6 incorporate the key
points discussed in the Background Information section. In particular,
for the reasons discussed therein the proposed Article 6 is consistent
with a non-sequential processing of submissions with no distinction made
between the current categories of "subregional systems" and "additional
uses".

§ 6.1 through § 6.23 define how submissions for use of Appendix 30B
frequencies are to be processed. This procedure is considered to be
appropriate and is similar to that currently used in Appendices 30 and
30A.

§ 6.24 through § 6.26 open the possibility of provisional entry in the
List. It is important that this flexibility be introduced to prevent
that assignments that may never be brought into use unduly block the
implementation of assignments that would otherwise be implemented. In §
6.24 through § 6.26, provisional entry in the List has been limited to
the cases in which the assignments that were the basis for the
unfavourable finding be additional uses in the List or submitted notices
for additional uses. By doing this, it is ensured that provisional
entries in the List may be incompatible with allotments or assignments
resulting from the conversion of allotments. This approach provides a
reasonable balance between the interests of ITU Member States that want
to implement their allotments and those of Administrations that want to
use capacity (orbit/spectrum resources) beyond that in the Plan.

**§ 6.29 through § 6.31 address the cancellation of assignments. In
particular, § 6.30 proposes that in the case of assignments resulting
from the conversion of allotments, cancelled assignments will be
transferred to the Plan in a way that does disrupt the current reference
situation.**

§ 6.32 § 6.33 propose that, similarly to the treatment given in Appendix
30 and 30A for Regions 1 and 3, new ITU Member States can use the
provisions of Article 6 to have allotments (with national coverage)
included in the Plan.

**USA/ /15 SUP Article 7**

~~ARTICLE 7~~

~~Procedure for the addition of a new allotment to the Plan\
for a new Member State of the Union~~

~~7.1 The administration of a country which has joined the Union as a
new Member State shall obtain a national allotment in Part A of the Plan
by the following procedure.~~

~~7.2 The administration shall submit its request for an allotment to
the Bureau, with the following information:~~

~~*a)* the geographical coordinates of not more than 10 test points for
determining the minimal ellipse to cover its national territory;~~

~~*b)* the height above sea level of each of its test points and the
rain zone or zones;~~

~~*c)* any special requirement, other than a fixed orbital position,
which is to be taken into account to the extent practicable.~~

~~7.3 Upon receipt of the complete information (mentioned in § 7.2
above), the Bureau shall find an appropriate orbital position, if
necessary using the PDA concept, and shall enter the national allotment
of the new Member State of the Union in Part A of the Plan.~~

~~7.4 For this purpose the Bureau shall consult, and if necessary seek
the agreement of, any administrations that may be affected.~~

ARTICLE 8     (WRC-03)

Procedure for notification and recording in the Master Register of
assignments in the planned bands for the fixed-satellite service

**USA/ /16 NOC 8.1**

8.1 Any assignment for which the relevant procedure of Article 6 has
been successfully applied shall be notified to the Bureau using the
relevant characteristics listed in Appendix** 4**, not earlier than
three years before the assignments are brought into use.     (WRC-03)

**Reasons:** Current text is appropriate.

**USA/ /17 MOD 8.2**

8.2 If the first notice referred to in § 8.1[, § 6.14 and
§ 6.22]{.underline} has not been received by the Bureau within the
eight-year period mentioned in § 6.1 [and 6.28]{.underline} ~~6.38
or 6.57~~ of Article 6~~asappropriate~~, the assignments in the List
shall no longer be taken into account by the Bureau and administrations.
The Bureau shall then act as if the assignment in the List has not been
brought into use in conformity with § 6.[29]{.underline}~~6.38 or 6.57~~
of Article 6, as appropriate. The Bureau shall inform the notifying
administration, three months in advance of the end of the eight-year
period, of the actions it intends to take.     (WRC-03)

**Reasons:** Changes are consequential of those introduced in Article 6.

**USA/ /18 NOC 8.3**

8.3 Notices not containing those characteristics specified in
Appendix **4** as mandatory or required shall be returned with comments
to help the notifying administration to complete and resubmit them,
unless the information not provided is immediately forthcoming in
response to an inquiry by the Bureau.     (WRC-03)

**Reasons:** Current text is appropriate.

**USA/ /19 SUP 8.4**

~~8.4 Upon reception by the Bureau of a complete notice under § 8.1, a
PDA of zero degrees (operational stage) shall be associated with this
assignment.     (WRC-03)~~

**Reasons:** Suppression is consequential of the elimination of the PDA
concept proposed in USA/ /03 MOD.

**USA/ /20 NOC 8.5 to 8.12**

8.5 Complete notices shall be marked by the Bureau with their date of
receipt and shall be examined in the date order of their receipt.
Following receipt of a complete notice the Bureau shall, within not more
than two months, publish its contents, with any diagrams and maps and
the date of receipt, in the BR IFIC, which shall constitute the
acknowledgement to the notifying administration of receipt of its
notice. When the Bureau is not in a position to comply with the
time-limit referred to above, it shall periodically so inform the
administrations, giving the reasons therefor.     (WRC-03)

8.6 The Bureau shall not postpone the formulation of a finding on a
complete notice unless it lacks sufficient data to reach a conclusion
thereon.     (WRC-03)

8.7 Each notice shall be examined:     (WRC-03)

8.8 *a)* with respect to its conformity with the Table of Frequency
Allocations and the other provisions[^12] of these Regulations, except
those provisions relating to conformity with the fixed-satellite service
Plan which are the subject of the following subpara­graph;     (WRC-03)

8.9 *b)* with respect to its conformity with the fixed-satellite service
Plan and the associated provisions.     (WRC-03)

8.10 When the examination with respect to § 8.8 leads to a favourable
finding, the assignment shall be examined further with respect to § 8.9;
otherwise the notice shall be returned with an indication of the
appropriate action.     (WRC-03)

8.11 When the examination with respect to § 8.9 leads to a favourable
finding, the assignment shall be recorded in the Master Register. When
the finding is unfavourable, the notice shall be returned to the
notifying administration, with an indication of the appropriate
action.     (WRC-03)

8.12 In every case when a new assignment is recorded in the Master
Register it shall, in accordance with the provisions of Article** 8**,
include an indication of the finding reflecting the status of the
assignment. This information shall also be published in the
BR IFIC.     (WRC-03)

**Reasons:** Current text is appropriate.

**USA/ /21 MOD 8.13**

8.13 A notice of a change in the characteristics of an assignment
already recorded, as specified in Appendix **4**, shall be examined by
the Bureau under § 8.8, and 8.9 as appropriate. Any changes to the
characteristics of an assignment, that has been notified and confirmed
as having been brought into use, shall be brought into use within eight
years from the date of the notification of the modification. Any changes
to the characteristics of an assignment that has been notified but not
yet brought into use shall be brought into use within the period
provided for in § 6.1 [and 6.28]{.underline}~~6.29, 6.38 or 6.57~~ of
Article 6~~as appropriate~~.     (WRC-03)

**Reasons:** Changes are consequential of those introduced in Article 6.

**USA/ /22 NOC 8.14 to 8.19**

8.14 In the case of a change in the characteristics of an assignment
which is in conformity with § 8.8, should the Bureau reach a favourable
finding with respect to § 8.9, the amended assignment shall retain the
original date of entry in the Master Register. The date of receipt by
the Bureau of the notice relating to the change shall be entered in the
Master Register.     (WRC-03)

8.15 In applying the provisions of this Article, any resubmitted notice
which is received by the Bureau more than six months after the date on
which the original notice was returned by the Bureau shall be considered
to be a new notice.     (WRC-03)

8.16 All frequency assignments notified in advance of their being
brought into use shall be entered provisionally in the Master Register.
Any frequency assignment provisionally recorded under this provision
shall be brought into use by the date specified in the notice. Within
thirty days of such an assignment being brought into use, the notifying
administration shall so inform the Bureau. If the Bureau does not
receive that confirmation within the above period, after sending a
reminder, it shall cancel the entry. The Bureau shall, however, inform
the administration concerned before taking such action.     (WRC-03)

8.17 Where the use of a recorded assignment to a space station is
suspended for a period not exceeding eighteen months, the notifying
administration shall, as soon as possible, inform the Bureau of the date
on which such use was suspended and the date on which the assignment is
to be brought back into regular use. This latter date shall not exceed
two years from the date of suspension.     (WRC-03)

8.18 No provision of this Appendix shall be considered as modifying the
requirements of Article **9** relating to coordination between earth
stations in the fixed-satellite service and stations of terrestrial
services sharing the planned bands on an equal primary
basis.     (WRC-03)

8.19 Notification of assignments to a specific earth station using
assignments included in the List shall be effected applying the
provisions of Article **11**.     (WRC-03)

**Reasons:** Current text is appropriate.

ARTICLE 9

General provisions

**USA/ /23 MOD 9.1**

9.1 ~~Part A of t~~[T]{.underline}he Plan is limited to national systems
providing a domestic service. Administrations may, however, in
accordance with the provisions ~~of Section II~~ of Article 6, ~~use all
or part of~~ [modify]{.underline} their allotments [or propose
additional uses]{.underline} to [provide multi-national
services]{.underline}~~form a subregional system~~.

**Reasons:** Changes are consequential of those introduced in Article 6.

**USA/ /24 SUP 9.2**

~~9.2 The existing systems listed in Part B of the Plan may continue in
operation for a maximum period of 20 years from the date of entry into
force of this Appendix.~~

**Reasons:** Existing systems are associated with FSS satellite networks
that had already been submitted to the ITU BR when the Plan was
developed. By now, the frequency assignments in these networks have
either been brought into use and become assignments in the List or have
been cancelled.

Current § 9.2 means that all these frequency assignments would have to
cease operation (or operate under No. 4.4 of the Radio Regulations)
after 16 March 2010. Operation under No. 4.4 is not a realistic option,
at least as Appendix 30B frequencies are more widely used. Moreover,
requiring that operational satellite networks with large number of users
cease abruptly their operation is unreasonable.

By suppressing § 9.2, frequency assignments of existing systems that
have been brought into use just remain in the List similarly to the way
in which frequency assignments associated with subregional systems are
currently treated.

ARTICLE 10

Plan for the fixed-satellite service in the frequency bands\
4 500-4 800 MHz, 6 725-7 025 MHz, 10.70-10.95 GHz,\
11.20-11.45 GHz and 12.75-13.25 GHz [^13]

**USA/ /25 MOD A.1**

A.1 COLUMN HEADINGS~~OF PART A~~ OF THE PLAN

**Reasons:** Change is consequential to the changes proposed in USA/ /02
MOD (elimination of Part B).

**USA/ /26 NOC A.2**

A.2 TEXT FOR SYMBOLS IN REMARKS COLUMN OF THE PLAN

Tables with Allotments.

**Reasons:** No need to change section A2 or the tables containing the
allotments.

**USA/ /27 SUP Part B**

~~B COLUMN HEADINGS OF PART B OF THE PLAN~~

~~Table with Existing Systems.~~

**Reasons:** Consequential to the treatment proposed for existing
systems (see USA/ /04 SUP and USA/ /23 MOD).

USA/ /28 NOC Article 11

ARTICLE 11

Period of validity of the provisions and associated Plan

11.1 These provisions and associated Plan have been prepared in order to
guarantee in practice for all countries equitable access to the GSO and
the frequency bands contained in Article 3, to meet the requirements of
the fixed-satellite service for a period of at least 20 years from the
date of entry into force of this Appendix.

11.2 These provisions and associated Plan shall, in any event, remain in
force until their revision by a competent world administrative radio
conference, convened in accordance with the relevant provisions of the
Convention in force.

**Reasons:** Current text is appropriate.

ANNEX 1     (WRC-03)

Parameters used in characterizing the fixed-satellite service Plan

Section A -- Technical data used in establishing the Allotment Plan\
and the associated provisions

\[Note 1: Discussions on the technical parameters used in connection
with the Allotment Plan are being held in ITU-R Working Party 4A. The
United States of America is following these discussions but does not
have a proposal on this matter at this point in time.\]

USA/ /29 SUP Section B

~~Section B -- Generalized parameters used for determining when the
assignments of a proposed satellite network are in conformity with the
Plan~~

**Reasons:** This suppression is consequential of the proposed
elimination of the generalized parameters (see USA/ /03 MOD above).

USA/ /30 NOC Annex 2

ANNEX 2     (WRC-03)

Basic data to be furnished in notices relating to stations\
in the fixed-satellite service entering the design stage\
using frequency bands of the Plan

These data are listed in Appendix **4**.

**Reasons:** Current text is appropriate.

USA/ /31 SUP Annexes 3A and 3B

~~ANNEX 3A~~

~~Criteria for determining when proposed assignments\
are considered as being in conformity with the Plan~~

~~In this method, the generalized parameters are calculated (see
Annex 1, Section B), and the results are compared with the corresponding
reference set:~~

~~-- If the calculated *A*, *B*, *C* and *D* values are less than or
equal to the relevant reference set, then the use of the assignment is
considered to be in conformity with the Plan.~~

~~-- If the calculated values of *A* or *C* are greater than the
relevant reference set, the use of the assignment is considered not to
be in conformity with the Plan.~~

~~-- If the calculated values of *B* or *D* are greater than the
relevant reference set, the assignment is protected only to the level of
the relevant reference set.~~

~~ANNEX 3B~~

~~Macrosegmentation concept~~

~~In this method, an administration shall not be required to coordinate
if, in addition to meeting the conditions of Annex 3A, the proposed
frequency assignments are ordered in such a way that the upper 60% of
each allotment band is used for high-density carriers and the lower 40%
for low-density carriers.~~

~~For the purposes of this annex, the term "high-density carriers" shall
be used for those carriers whose ratio of power spectral density peak
(averaged over the worst 4 kHz) to average (defined over the necessary
bandwidth of the modulated carrier) is greater than 5 dB; and the term
"low-density carriers" shall be used for those for which this ratio is
less than 5 dB.~~

**Reasons:** Suppression of Annexes 3A and 3B is consequential of the
proposed elimination of the generalized parameters (see USA/ /03 MOD and
USA/ /29 SUP above). The concept of segregating \"high density
carriers\" from \"low density carriers\" is still maintained in Annex 6,
item 2.

ANNEX 4     (WRC-03)

Limits for determining whether an allotment or an assignment\
made in accordance with the provisions of Appendix 30B is\
considered to be affected

APPENDIX 1 TO ANNEX 4

Method for determination of the single-entry and aggregate\
carrier-to-interference ratio averaged over the necessary\
bandwidth of the modulated carrier

\[Note 2: Discussions on the protection criteria to be used in
connection with the Plan are being held in ITU-R Working Party 4A. The
United States of America is following these discussions but does not
have a proposal on this matter at this point in time.\]

USA/ /32 SUP Annex 5

~~ANNEX 5     (WRC-03)~~

~~Application of the PDA (predetermined arc) concept~~

~~1 The following method will be used in the application of the PDA
concept, which is based on the criteria set out in § 1.1 below.~~

~~1.1 For the purposes of this Annex, an administration will be
considered as being affected by another administration if, at its
nominal orbital position within the predetermined arc, the calculated
single-entry *C*/*I* is less than or equal to 30 dB (WRC‑03 decided that
for the examination of submissions received as from 5 July 2003 the
value 27 dB (instead of 30 dB) shall be applied), or the calculated
value, based on the Plan, due to that other administration (whichever is
lower), at any test point within the service area of the interfered-with
satellite network. The single-entry *C */* I*  is calculated by the
method in Appendix 1 to Annex 4.~~

~~Even if the single-entry *C */* I* is above 30 dB (WRC‑03 decided that
for the examination of submissions received as from 5 July 2003 the
value 27 dB (instead of 30 dB) shall be applied), or the calculated
value, based on the Plan, due to that other administration (whichever is
lower), an administration shall be considered as being affected if the
overall aggregate *C */* I*, calculated by the method in Appendix 1 to
Annex 4, falls below 26 dB~~[^14] ~~(WRC‑03 decided that for the
examination of submissions received as from 5 July 2003 the value 23 dB
(instead of 26 dB) shall be applied), or the value for the assignment
(whichever is lower).     (WRC-03)~~

~~1.2 The PDA Concept shall be applied in the following steps:~~

~~*a)* the order of all satellites and also the position of satellites
in the "design" or "operational" stages shall be fixed so as to minimize
the impact on these systems. Next, the nominal positions of "pre-design"
systems shall be adjusted so as to compensate for the degraded
*C */* I*. The adjustments of nominal positions shall be limited to the
range of their respective predetermined arcs;~~

~~*b)* if compatibility is not obtained through § 1.2 *a)*, the ordering
of allotments of satellites in the "pre-design" stage shall be subject
to change within their predetermined arcs, as defined in Article 5;~~

~~*c)* if the *C */* I* objectives are not achieved, the affected
administration may at this stage opt to select other measures than
repositioning, as described in § 1.2 *d)* below;~~

~~*d)* if compatibility is not achieved under § 1.2 *b)*, and if the
measures of § 1.2 *c)* are unsuccessful, the allotment(s)/assignment(s)
subject to repositioning shall include the systems in the "design"
stage, for their predetermined arc as defined in Article 5.~~

~~1.3 Administrations for which the criteria of § 1.1 are not met shall
be identified for the purposes of this Annex.~~

**Reasons:** This suppression is consequential of the proposed
elimination of the PDA concept (see USA/ /10 SUP above).

USA/ /31 NOC Annex 6

ANNEX 6     (WRC-03)

Technical means which may be used to avoid incompatibilities between\
systems in the fixed-satellite service at their implementation stage

1 Improved frequency modulated TV carrier dispersal techniques with up
to 4-5 MHz peak-to-peak deviation.

2 Frequency separation between signals with high peak spectral density
and narrow-band signals (bandwidth segmentation).

3 The use of transmitting and receiving antennas with special beams
providing minimum gain in the direction to neighbouring satellites.

4 Shaped beams for transmitting satellite antennas.

5 Transmission (modulation) and reception techniques allowing for the
*C */* I* ratios less than 26 dB (WRC‑03 decided that for the
examination of submissions received as from 5 July 2003 the value 23 dB
(instead of 26 dB) shall be applied).     (WRC-03)

**Reasons:** Current text is appropriate.

**WAC/107(27.04.06):**

**DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE**

**Agenda Item 1.12**: to consider possible changes in response to
Resolution **86 (Rev.** **Marrakesh, 2002)** of the Plenipotentiary
Conference: "Advance publication, coordination, notification and
recording procedures for frequency assignments pertaining to satellite
networks" in accordance with Resolution **86 (WRC-03)**;

***Coordination arc in the band 17.3-17.8 GHz and other closely related
proposal***

**Background information**: Resolution 901 (WRC-03) invites ITU-R "to
conduct studies on the applicability of the coordination arc concept for
space radiocommunication services not yet covered by these Regulations"
as well as "to recommend, as appropriate, the orbital separation
required for triggering inter-service and intra-service coordination
concerning the satellite services in frequency bands above 3.4 GHz for
geostationary-satellite (GSO) networks not subject to a Plan and not
already covered by the coordination arc concept specified in No. 9.7
(GSO/GSO) of Table 5-1 (Appendix 5), under items 1), 2) and 3) of the
frequency band column, and subject to Section II of Article 9". This
Resolution further *resolves* to recommend that a future competent
conference review the results of ITU-R studies on the application of the
coordination arc and consider including the results of these studies in
Appendix **5**. Review of such study results are considered under
Resolution **86** of Agenda Item 1.12.

Pursuant to Resolution 901, ITU-R studied the appropriate coordination
arc value to trigger coordination between Broadcasting-Satellite Service
(BSS) networks serving Region 2 in the band 17.3-17.8 GHz and Fixed
Satellite Service (FSS) (space-to-Earth) networks serving Region 1 in
the band 17.3-17.7 GHz and FSS (space-to-Earth) networks serving Regions
1, 2 and 3 in the band 17.7-17.8 GHz.

The ITU-R studies concluded that a coordination arc value of ±8° is
appropriate to trigger coordination between GSO BSS networks serving
Region 2 and GSO FSS (space-to-Earth) networks whose service areas are
limited to Region 1 in the band 17.3-17.7 GHz and between GSO BSS
networks serving Region 2 and GSO FSS (space-to-Earth) networks whose
service areas are limited to Regions 1 and/or 3 in the band 17.7-17.8
GHz. As a result, specific changes are proposed to Table 5-1 of Appendix
5 to incorporate these conclusions.

For the case of Region 2 FSS (space-to-Earth) with respect to Region 2
BSS in the 17.7 -- 17.8 GHz band footnote No. **5.517** applies.

***5.517** In Region 2, the allocation to the broadcasting-satellite
service in the band 17.3-17.8 GHz shall come into effect on 1 April
2007. After that date, use of the fixed-satellite (space-to-Earth)
service in the band 17.7-17.8 GHz shall not claim protection from and
shall not cause harmful interference to operating systems in the
broadcasting-satellite service.*

Changes to the wording of this provision, as well as consequential
changes to the Table of Allocations are proposed recognizing that the 1
April 2007 date has passed.

Finally, also for Region 2, No. **5.518** applies for the Mobile
Service.

***5.518** Different category of service:  in Region 2, the allocation
of the band 17.7-17.8 GHz to the mobile service is on a primary basis
until 31 March 2007.*

Suppression of this provision is proposed, recognizing that the 31 March
2007 date has passed.

**Proposals:**

USA/ /01 MOD

TABLE 5-1     (Rev.WRC‑0~~3~~[7]{.underline})

Technical conditions for coordination\
(see Article 9)

+----+-----------+-----------+-----------------+--------+-----------+
| ** | **Case**  | **        | **Thresh        | **     | **        |
| Re |           | Frequency | old/condition** | Calcul | Remarks** |
| fe |           | bands\    |                 | ation\ |           |
| re |           | (and      |                 | me     |           |
| nc |           | Region)   |                 | thod** |           |
| e\ |           | of the    |                 |        |           |
| o  |           | service\  |                 |        |           |
| f\ |           | for which |                 |        |           |
| A  |           | coor      |                 |        |           |
| rt |           | dination\ |                 |        |           |
| ic |           | is        |                 |        |           |
| le |           | sought**  |                 |        |           |
| 9  |           |           |                 |        |           |
| ** |           |           |                 |        |           |
+----+-----------+-----------+-----------------+--------+-----------+
| N  | A station | 1\)       | i\) Bandwidth   |        | With      |
| o. | in a      | 3         | overlap, and    |        | respect   |
| ** | satellite | 400-4 200 |                 |        | to the    |
| 9. | network   | MHz\      | ii\) any        |        | space     |
| 7\ | using the | 5         | network in the  |        | services  |
| *  | geost     | 725-5 850 | fixed-satellite |        | listed in |
| *G | ationary- | MHz       | service (FSS)   |        | the       |
| SO | satellite | (         | and any         |        | t         |
| /G | orbit     | Region 1) | associated      |        | hreshold/ |
| SO | (GSO), in | and\      | space operation |        | condition |
|    | any space | 5         | functions (see  |        | column in |
|    | radiocomm | 850-6 725 | No. **1.23**)   |        | the bands |
|    | unication | MHz\      | with a space    |        | in 1),    |
|    | service,  | 7         | station within  |        | 2), 3),   |
|    | in a      | 025-7 075 | an orbital arc  |        | 4)        |
|    | frequency | MHz       | of ± 10° of the |        | ~~and~~   |
|    | band and  |           | nominal orbital |        | 5), [6)   |
|    | in a      |           | position of a   |        | and       |
|    | Region    |           | proposed        |        | 7)]{.u    |
|    | where     |           | network in the  |        | nderline} |
|    | this      |           | FSS             |        | an        |
|    | service   |           |                 |        | admin     |
|    | is not    |           |                 |        | istration |
|    | subject   |           |                 |        | may       |
|    | to a      |           |                 |        | request,  |
|    | Plan, in  |           |                 |        | pursuant  |
|    | respect   |           |                 |        | to        |
|    | of any    |           |                 |        | No.       |
|    | other     |           |                 |        | **9.41**, |
|    | satellite |           |                 |        | to be     |
|    | network   |           |                 |        | included  |
|    | using     |           |                 |        | in        |
|    | that      |           |                 |        | requests  |
|    | orbit, in |           |                 |        | for       |
|    | any space |           |                 |        | coor      |
|    | radio­comm |           |                 |        | ­dination, |
|    | unication |           |                 |        | i         |
|    | service   |           |                 |        | ndicating |
|    | in a      |           |                 |        | the       |
|    | frequency |           |                 |        | networks  |
|    | band and  |           |                 |        | for which |
|    | in a      |           |                 |        | the value |
|    | Region    |           |                 |        | of        |
|    | where     |           |                 |        | ∆*T*/*T*  |
|    | this      |           |                 |        | c         |
|    | service   |           |                 |        | alculated |
|    | is not    |           |                 |        | by the    |
|    | subject   |           |                 |        | method in |
|    | to a      |           |                 |        | § 2.2.1.2 |
|    | Plan,     |           |                 |        | and 3.2   |
|    | with the  |           |                 |        | of        |
|    | exception |           |                 |        |  Appendix |
|    | of the    |           |                 |        | **8**     |
|    | coo       |           |                 |        | exceeds   |
|    | rdination |           |                 |        | 6%. When  |
|    | between   |           |                 |        | the       |
|    | earth     |           |                 |        | Bureau,   |
|    | stations  |           |                 |        | on        |
|    | operating |           |                 |        | request   |
|    | in the    |           |                 |        | by an     |
|    | opposite  |           |                 |        | affected  |
|    | direction |           |                 |        | admini    |
|    | of        |           |                 |        | stration, |
|    | tra       |           |                 |        | studies   |
|    | nsmission |           |                 |        | this      |
|    |           |           |                 |        | in        |
|    |           |           |                 |        | formation |
|    |           |           |                 |        | pursuant  |
|    |           |           |                 |        | to        |
|    |           |           |                 |        | No.       |
|    |           |           |                 |        | **9.42**, |
|    |           |           |                 |        | the       |
|    |           |           |                 |        | ca        |
|    |           |           |                 |        | lculation |
|    |           |           |                 |        | method    |
|    |           |           |                 |        | given in  |
|    |           |           |                 |        | § 2.2.1.2 |
|    |           |           |                 |        | and 3.2   |
|    |           |           |                 |        | of        |
|    |           |           |                 |        | Appen     |
|    |           |           |                 |        | dix **8** |
|    |           |           |                 |        | shall be  |
|    |           |           |                 |        | used      |
+----+-----------+-----------+-----------------+--------+-----------+
|    |           | 2\)       | i\) Bandwidth   |        |           |
|    |           | 1         | overlap, and    |        |           |
|    |           | 0.95-11.2 |                 |        |           |
|    |           | GHz\      | ii\) any        |        |           |
|    |           | 1         | network in the  |        |           |
|    |           | 1.45‑11.7 | FSS or          |        |           |
|    |           | GHz\      | broadca         |        |           |
|    |           | 11.7-12.2 | sting-satellite |        |           |
|    |           | GHz\      | service (BSS),  |        |           |
|    |           | (R        | not subject to  |        |           |
|    |           | egion 2)\ | a Plan, and any |        |           |
|    |           | 12.2-12.5 | associated      |        |           |
|    |           | GHz\      | space operation |        |           |
|    |           | (R        | functions (see  |        |           |
|    |           | egion 3)\ | No. **1.23**)   |        |           |
|    |           | 1         | with a space    |        |           |
|    |           | 2.5‑12.75 | station within  |        |           |
|    |           | GHz       | an orbital arc  |        |           |
|    |           | (         | of ± 9° of the  |        |           |
|    |           | Regions 1 | nominal orbital |        |           |
|    |           | and 3)    | position of a   |        |           |
|    |           | 1         | proposed        |        |           |
|    |           | 2.7‑12.75 | network in the  |        |           |
|    |           | GHz       | FSS or BSS, not |        |           |
|    |           | (         | subject to a    |        |           |
|    |           | Region 2) | Plan            |        |           |
|    |           | and\      |                 |        |           |
|    |           | 1         |                 |        |           |
|    |           | 3.75‑14.5 |                 |        |           |
|    |           | GHz       |                 |        |           |
+----+-----------+-----------+-----------------+--------+-----------+

TABLE 5-1 (*CONTINUED*)     (REV.WRC‑03)

+----+-----------+-----------+-----------------+--------+-----------+
| ** | **Case**  | **        | **Thresh        | **     | **        |
| Re |           | Frequency | old/condition** | Calcul | Remarks** |
| fe |           | bands\    |                 | ation\ |           |
| re |           | (and      |                 | me     |           |
| nc |           | Region)   |                 | thod** |           |
| e\ |           | of the    |                 |        |           |
| o  |           | service\  |                 |        |           |
| f\ |           | for which |                 |        |           |
| A  |           | coor      |                 |        |           |
| rt |           | dination\ |                 |        |           |
| ic |           | is        |                 |        |           |
| le |           | sought**  |                 |        |           |
| 9  |           |           |                 |        |           |
| ** |           |           |                 |        |           |
+----+-----------+-----------+-----------------+--------+-----------+
| N  |           | 3\)       | i\) Bandwidth   |        |           |
| o. |           | 17.7‑20.2 | overlap, and    |        |           |
| ** |           | GHz,\     |                 |        |           |
| 9. |           | (Regions  | ii\) any        |        |           |
| 7\ |           | 2 and     | network in the  |        |           |
| ** |           | 3),\      | FSS and any     |        |           |
| GS |           | 17.3-20.2 | associated      |        |           |
| O/ |           | GHz\      | space operation |        |           |
| GS |           | (         | functions (see  |        |           |
| O\ |           | Region 1) | No. **1.23**)   |        |           |
| (  |           | and\      | with a space    |        |           |
| *c |           | 27.5‑30   | station within  |        |           |
| on |           | GHz       | an orbital arc  |        |           |
| t. |           |           | of ± 8° of the  |        |           |
| *) |           |           | nominal orbital |        |           |
|    |           |           | position of a   |        |           |
|    |           |           | proposed        |        |           |
|    |           |           | network in the  |        |           |
|    |           |           | FSS             |        |           |
+----+-----------+-----------+-----------------+--------+-----------+
|    |           | [4)       | [i) Bandwidth   |        |           |
|    |           | 17.3-17.7 | overlap,        |        |           |
|    |           | GHz\      | a               |        |           |
|    |           | (Regions  | nd]{.underline} |        |           |
|    |           | 1 and     |                 |        |           |
|    |           | 2)]{.u    | [ii) a) any     |        |           |
|    |           | nderline} | network in the  |        |           |
|    |           |           | FSS and any     |        |           |
|    |           |           | associated      |        |           |
|    |           |           | space operation |        |           |
|    |           |           | functions (see  |        |           |
|    |           |           | No. 1.23) with  |        |           |
|    |           |           | a space station |        |           |
|    |           |           | within an       |        |           |
|    |           |           | orbital arc of  |        |           |
|    |           |           | ± 8° of the     |        |           |
|    |           |           | nominal orbital |        |           |
|    |           |           | position of a   |        |           |
|    |           |           | proposed        |        |           |
|    |           |           | network in the  |        |           |
|    |           |           | B               |        |           |
|    |           |           | SS]{.underline} |        |           |
|    |           |           |                 |        |           |
|    |           |           | *[o             |        |           |
|    |           |           | r]{.underline}* |        |           |
|    |           |           |                 |        |           |
|    |           |           | [b) any network |        |           |
|    |           |           | in the BSS and  |        |           |
|    |           |           | any associated  |        |           |
|    |           |           | space operation |        |           |
|    |           |           | functions (see  |        |           |
|    |           |           | No. 1.23) with  |        |           |
|    |           |           | a space station |        |           |
|    |           |           | within an       |        |           |
|    |           |           | orbital arc of  |        |           |
|    |           |           | ± 8° of the     |        |           |
|    |           |           | nominal orbital |        |           |
|    |           |           | position of a   |        |           |
|    |           |           | proposed        |        |           |
|    |           |           | network in the  |        |           |
|    |           |           | F               |        |           |
|    |           |           | SS]{.underline} |        |           |
+----+-----------+-----------+-----------------+--------+-----------+
|    |           | [5)       | [i) Bandwidth   |        |           |
|    |           | 17.7-17.8 | overlap,        |        |           |
|    |           | GHz]{.u   | a               |        |           |
|    |           | nderline} | nd]{.underline} |        |           |
|    |           |           |                 |        |           |
|    |           |           | [ii) a) any     |        |           |
|    |           |           | network in the  |        |           |
|    |           |           | FSS and any     |        |           |
|    |           |           | associated      |        |           |
|    |           |           | space operation |        |           |
|    |           |           | functions (see  |        |           |
|    |           |           | No. 1.23) with  |        |           |
|    |           |           | a space station |        |           |
|    |           |           | within an       |        |           |
|    |           |           | orbital arc of  |        |           |
|    |           |           | ± 8° of the     |        |           |
|    |           |           | nominal orbital |        |           |
|    |           |           | position of a   |        |           |
|    |           |           | proposed        |        |           |
|    |           |           | network in the  |        |           |
|    |           |           | B               |        |           |
|    |           |           | SS]{.underline} |        |           |
|    |           |           |                 |        |           |
|    |           |           | *[o             |        |           |
|    |           |           | r]{.underline}* |        |           |
|    |           |           |                 |        |           |
|    |           |           | b)  [any        |        |           |
|    |           |           |     network in  |        |           |
|    |           |           |     the BSS and |        |           |
|    |           |           |     any         |        |           |
|    |           |           |     associated  |        |           |
|    |           |           |     space       |        |           |
|    |           |           |     operation   |        |           |
|    |           |           |     functions   |        |           |
|    |           |           |     (see        |        |           |
|    |           |           |     No. 1.23)   |        |           |
|    |           |           |     with a      |        |           |
|    |           |           |     space       |        |           |
|    |           |           |     station     |        |           |
|    |           |           |     within an   |        |           |
|    |           |           |     orbital arc |        |           |
|    |           |           |     of ± 8° of  |        |           |
|    |           |           |     the nominal |        |           |
|    |           |           |     orbital     |        |           |
|    |           |           |     position of |        |           |
|    |           |           |     a proposed  |        |           |
|    |           |           |     network in  |        |           |
|    |           |           |     the         |        |           |
|    |           |           |     F           |        |           |
|    |           |           | SS]{.underline} |        |           |
|    |           |           |                 |        |           |
|    |           |           | > [(See also    |        |           |
|    |           |           | > No.           |        |           |
|    |           |           | > **5.517)      |        |           |
|    |           |           | **]{.underline} |        |           |
+----+-----------+-----------+-----------------+--------+-----------+
|    |           | ~~4       | i\) Bandwidth   |        |           |
|    |           | ~~[6]{.un | overlap, and    |        |           |
|    |           | derline}) |                 |        |           |
|    |           | Bands     | ii\) any        |        |           |
|    |           | above     | network in the  |        |           |
|    |           | 17.3 GHz, | FSS and any     |        |           |
|    |           | except    | associated      |        |           |
|    |           | those     | space operation |        |           |
|    |           | defined   | functions (see  |        |           |
|    |           | in § 3)   | No. **1.23**)   |        |           |
|    |           |           | with a space    |        |           |
|    |           |           | station within  |        |           |
|    |           |           | an orbital arc  |        |           |
|    |           |           | of ±8° of the   |        |           |
|    |           |           | nominal orbital |        |           |
|    |           |           | position of a   |        |           |
|    |           |           | proposed        |        |           |
|    |           |           | network in the  |        |           |
|    |           |           | FSS (see also   |        |           |
|    |           |           | Resolution      |        |           |
|    |           |           | **901           |        |           |
|    |           |           | (WRC‑03)**)     |        |           |
+----+-----------+-----------+-----------------+--------+-----------+
|    |           | ~~5       | i\) Bandwidth   |        |           |
|    |           | ~~[7]{.un | overlap, and    |        |           |
|    |           | derline}) |                 |        |           |
|    |           | Bands     | ii\) any        |        |           |
|    |           | above     | network in the  |        |           |
|    |           | 17.3      | FSS or BSS, not |        |           |
|    |           | GHz[,]{.u | subject to a    |        |           |
|    |           | nderline} | Plan, and any   |        |           |
|    |           | [except   | associated      |        |           |
|    |           | those     | space operation |        |           |
|    |           | defined   | functions (see  |        |           |
|    |           | in § 4)   | No. **1.23**)   |        |           |
|    |           | and       | with a space    |        |           |
|    |           | 5]{.u     | station within  |        |           |
|    |           | nderline} | an orbital arc  |        |           |
|    |           |           | of ±16° of the  |        |           |
|    |           |           | nominal orbital |        |           |
|    |           |           | position of a   |        |           |
|    |           |           | proposed        |        |           |
|    |           |           | network in the  |        |           |
|    |           |           | FSS or BSS, not |        |           |
|    |           |           | subject to a    |        |           |
|    |           |           | Plan, except in |        |           |
|    |           |           | the case of a   |        |           |
|    |           |           | network in the  |        |           |
|    |           |           | FSS with        |        |           |
|    |           |           | respect to a    |        |           |
|    |           |           | network in the  |        |           |
|    |           |           | FSS (see also   |        |           |
|    |           |           | R               |        |           |
|    |           |           | esolution **901 |        |           |
|    |           |           | (WRC‑03)**)     |        |           |
+----+-----------+-----------+-----------------+--------+-----------+

TABLE 5-1 (*CONTINUED*)     (REV.WRC‑03)

+----+-----------+-----------+-----------------+--------+-----------+
| ** | **Case**  | **        | **Thresh        | **     | **        |
| Re |           | Frequency | old/condition** | Calcul | Remarks** |
| fe |           | bands\    |                 | ation\ |           |
| re |           | (and      |                 | me     |           |
| nc |           | Region)   |                 | thod** |           |
| e\ |           | of the    |                 |        |           |
| o  |           | service\  |                 |        |           |
| f\ |           | for which |                 |        |           |
| A  |           | coor      |                 |        |           |
| rt |           | dination\ |                 |        |           |
| ic |           | is        |                 |        |           |
| le |           | sought**  |                 |        |           |
| 9  |           |           |                 |        |           |
| ** |           |           |                 |        |           |
+----+-----------+-----------+-----------------+--------+-----------+
| N  |           | ~~6       | i\) Bandwidth   | Ap     | In        |
| o. |           | ~~[8]{.un | overlap, and    | pendix | ap        |
| ** |           | derline}) |                 | **8**  | plication |
| 9. |           | All       | ii\) Value of   |        | of        |
| 7\ |           | frequency | ∆*T*/*T*        |        | Article   |
| ** |           | bands,    | exceeds 6%      |        | 2A of     |
| GS |           | other     |                 |        | Appendix  |
| O/ |           | than      |                 |        | **30**    |
| GS |           | those in  |                 |        | for the   |
| O\ |           | 1), 2),   |                 |        | space     |
| (  |           | 3), 4)[,  |                 |        | operation |
| *c |           | 5),       |                 |        | functions |
| on |           | 6)]{.u    |                 |        | using the |
| t. |           | nderline} |                 |        | g         |
| *) |           | and       |                 |        | uardbands |
|    |           | ~~5~      |                 |        | defined   |
|    |           | ~[7]{.und |                 |        | in § 3.9  |
|    |           | erline}), |                 |        | of Annex  |
|    |           | allocated |                 |        | 5 of      |
|    |           | to a      |                 |        | Appendi   |
|    |           | space     |                 |        | x **30**, |
|    |           | service,  |                 |        | the       |
|    |           | and the   |                 |        | t         |
|    |           | bands in  |                 |        | hreshold/ |
|    |           | 1), 2),   |                 |        | condition |
|    |           | 3), 4)[,  |                 |        | specified |
|    |           | 5),       |                 |        | for the   |
|    |           | 6)]{.u    |                 |        | FSS in    |
|    |           | nderline} |                 |        | the bands |
|    |           | and ~~5   |                 |        | in 2)     |
|    |           | ~~[7]{.un |                 |        | applies.  |
|    |           | derline}) |                 |        |           |
|    |           | where the |                 |        | In        |
|    |           | radio     |                 |        | ap        |
|    |           | service   |                 |        | plication |
|    |           | of the    |                 |        | of        |
|    |           | proposed  |                 |        | Article   |
|    |           | network   |                 |        | 2A of     |
|    |           | or        |                 |        | Appendi   |
|    |           | affected  |                 |        | x **30A** |
|    |           | networks  |                 |        | for the   |
|    |           | is other  |                 |        | space     |
|    |           | than the  |                 |        | operation |
|    |           | space     |                 |        | functions |
|    |           | services  |                 |        | using the |
|    |           | listed in |                 |        | g         |
|    |           | the       |                 |        | uardbands |
|    |           | t         |                 |        | defined   |
|    |           | hreshold/ |                 |        | in § 3.1  |
|    |           | condition |                 |        | and 4.1   |
|    |           | column,   |                 |        | of Annex  |
|    |           | or in the |                 |        | 3 of      |
|    |           | case of   |                 |        | Appendix  |
|    |           | coo       |                 |        |  **30A**, |
|    |           | rdination |                 |        | the       |
|    |           | of space  |                 |        | t         |
|    |           | stations  |                 |        | hreshold/ |
|    |           | operating |                 |        | condition |
|    |           | in the    |                 |        | specified |
|    |           | opposite  |                 |        | for the   |
|    |           | direction |                 |        | FSS in    |
|    |           | of        |                 |        | the bands |
|    |           | tra       |                 |        | in 4)     |
|    |           | nsmission |                 |        | applies   |
+----+-----------+-----------+-----------------+--------+-----------+

Reasons: These modifications to Table 5-1 of Appendix 5 incorporate the
results of ITU-R studies that conclude that a coordination arc of ±8º
between Region 2 BSS and Regions 1&3 FSS in the bands 17.3-17.8 GHz is
sufficient for triggering coordination between these services. These
modifications also note that No. 5.517 applies in the band 17.7-17.8
GHz.

USA/ /02 NOC

Resolution 901

Reason: The study called for in this Resolution is still valid for other
cases not yet addressed by the ITU-R

**Other Closely Related Proposals for Modifying the Table of
Allocations**

USA/ /03 MOD

**5.517** In Region 2, ~~the allocation to the broadcasting-satellite
service in the band 17.3-17.8 GHz shall come into effect on 1 April
2007. After that date,~~ use of the fixed-satellite (space-to-Earth)
service in the band 17.7-17.8 GHz shall not claim protection from and
shall not cause harmful interference to operating systems in the
broadcasting-satellite service.

**Reasons:** Modifications to this footnote are consequential to the 1
April 2007 date having passed.

**USA/ /04 SUP**

518. ~~*Different category of service:  *in Region 2, the allocation of
     the band 17.7-17.8 GHz to the mobile service is on a primary basis
     until 31 March 2007.~~

**Reasons:** Suppression of this footnote is consequential to the 31
March 2007 date having passed.

USA/ /05 MOD

+-----------------------+-----------------------+-----------------------+
| **17.3-17.7**         | **17.3-17.7**         | **17.3-17.7**         |
|                       |                       |                       |
| FIXED-SATELLITE\      | FIXED-SATELLITE\      | FIXED-SATELLITE\      |
| (Earth-to-space)      | (Earth-to-space)      | (Earth-to-space)      |
| 5.516\                | 5.516                 | 5.516                 |
| (space-to-Earth)      |                       |                       |
| 5.516A 5.516B         | B                     | Radiolocation         |
|                       | ROADCASTING-SATELLITE |                       |
| Radiolocation         |                       |                       |
|                       | Radiolocation         |                       |
+-----------------------+-----------------------+-----------------------+
| 5.514                 | 5.514 5.515 ~~5.517~~ | 5.514                 |
+-----------------------+-----------------------+-----------------------+
| **17.7-18.1**         | **17.7-17.8**         | **17.7-18.1**         |
|                       |                       |                       |
| FIXED                 | FIXED                 | FIXED                 |
|                       |                       |                       |
| FIXED-SATELLITE\      | FIXED-SATELLITE\      | FIXED-SATELLITE\      |
| (space-to-Earth)      | (space-to-Earth)      | (space-to-Earth)      |
| 5.484A\               | [5.517]{.underline}\  | 5.484A\               |
| (Earth-to-space)      | (Earth-to-space)      | (Earth-to-space)      |
| 5.516                 | 5.516                 | 5.516                 |
|                       |                       |                       |
| MOBILE                | B                     | MOBILE                |
|                       | ROADCASTING-SATELLITE |                       |
|                       |                       |                       |
|                       | Mobile ~~5.518~~      |                       |
|                       |                       |                       |
|                       | 5.515 ~~5.517~~       |                       |
+-----------------------+-----------------------+-----------------------+

**Reasons:** Modifications to the table are consequential to the
modifications made to the wording of No. **5.517** and the Suppression
of No. **5.518**.

> **Document WAC/108(27.04.06):**

**DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE**

**WRC-07 Agenda Item 2: to examine the revised ITU-R Recommendations
incorporated by reference in the Radio Regulations communicated by the
Radio Assembly in accordance with Resolution 28 (Rev. WRC-03), and to
decide whether or not to update the corresponding references in the
Radio Regulations, in accordance with the principles contained in
Resolution 27 (WRC-03).**

**Background Information:** Agenda Item 1.15 of WRC-03 dealt with RNSS
matters as indicated in Resolutions 604 (WRC-00), 605 (;WRC-00), and
Resolution 606 (WRC-00).

Resolution 605 concerned the development and implementation of
regulations to provide protection for the ARNS in the band 1164-1215 MHz
from all the emissions of "real" RNSS systems in the band. To this end
No. 5.328A was adopted and is associated with the referenced allocation.
It states:

**5.328A** Stations in the radionavigation-satellite service in the band
1164-1215 MHz shall operate in accordance with the provisions of
Resolution 609 (WRC-03) and shall not claim protection from stations in
the aeronautical radionavigation service in the band 960-1215 MHz. No.
5.43A does not apply. The provisions of 21.18 shall apply.

The language of this footnote regulation mandates that the RNSS in the
band 1164-1215,

"shall" operate in accordance with the provisions of Resolution 609
(WRC-03). This Resolution is entitled: "Protection of aeronautical
radionavigation service systems from the equivalent power flux- density
produced by radionavigation-satellite service networks and systems in
the 1164-1215 MHz frequency band". Resolves 10 of this mandatory
Resolution states:

**10** that the methodology and the reference worst-case ARNS system
antenna contained in Recommendation ITU-R 1642 shall be used by
administrations for calculating the aggregate epfd produced by all the
space stations within all RNSS systems in the band 1164-1215 MHz.

As indicated the statement "shall be used" in relation to Recommendation
ITU-R 1642 clearly makes use of this recommendation mandatory in the
context of the Radio Regulations, and therefore must be considered part
of them.

Resolution 27 and its Annex set forth the criteria for Recommendations
and Resolutions to be: Incorporated by Reference". Clearly,
Recommendation M. 1642 meets these criteria.

In consequence it is mandatory that this recommendation be considered as
part of Volume 4 of the Radio Regulations although it is not now.
Recommendation ITU-R 1642 must be included in subsequent revisions of
Volume 4 of the Radio Regulations.

It should be noted that a Working Party of the Special Committee has
come to the same conclusion regarding the incorporation in volume 4 of
the Radio Regulations of the referenced Recommendation as reflected in
the Attachment to Annex 15 of Document SC-WP/57-E.

**Proposal:**

> **Document WAC/108(27.04.06):**

**USA/ /4-1 ADD**

The Recommendation ITU-R M. 1642, " Methodology for Calculating the EPFD
Produced by All Space Stations within all RNSS systems and networks in
the band 1164-1215 MHz" is required to be added to Volume 4 , ITU-R
Recommendations incorporated by reference. A copy of Recommendation
ITU-R M. 1642 will be made available to the Conference in accordance
with the provisions of Annex 3 to Resolution 27.

**Reason:** Recommendation ITU-R M. 1642 fulfills all of the criteria
for a recommendation which is incorporated by reference as set forth in
Resolution 27 and its Annex, and therefore must be included in Volume 4
of the Radio Regulations.

> **Document WAC/110(27.04.06):**

**United States of America**

**DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE**

**Agenda Item 1.12**: to consider possible changes in response to
Resolution **86 (Rev.** **Marrakesh, 2002)** of the Plenipotentiary
Conference: "Advance publication, coordination, notification and
recording procedures for frequency assignments pertaining to satellite
networks" in accordance with Resolution **86 (WRC-03)**;

***Regulatory Procedures and associated technical criteria applicable to
satellite networks***

***Modification to Appendix 7, Table 10***

**Background information**: Resolution **86 (Rev. Marrakesh, 2002)**
requested that WRC-03 and subsequent Conferences review the regulatory
procedures associated with the advance publication, coordination,
notification and recording of frequency assignments pertaining to
satellite network. WRC-03 identified in Resolution **86 (WRC‑03)** the
scope and the criteria to be used for the implementation of Resolution
**86 (Rev. Marrakesh, 2002)**. Resolves 1 of Resolution **86 (WRC-03)**
specifically states that WRC-07 should "consider any proposals which
deal with deficiencies in the advance publication, coordination,
notification and recording procedures of the Radio Regulations (RR) for
space services which have either been identified by the Board and
included in the Rules of Procedure or which have been identified by
administrations or by the Bureau as appropriate."

A review of Appendix **7**, Table 10 (Predetermined coordination
distance) indicates that the case of ground-based earth stations and
aircraft terrestrial stations, except for those specifically identified
cases in the table, is missing. In the past the Radiocommunications
Bureau has used the predetermined distance of 500 km for this case,
e.g., see Document RRB98/134(Rev.1) dated 8 December 1998. This
coordination distance was derived assuming line-of-sight propagation
between the aircraft and ground-based stations with a 4/3 Earth radius
and the aircraft altitude of 12 km. The 500 km is consistent with the
distance currently applicable to the similar cases of coordination
between aircraft and ground-based stations such as i) ground-based earth
stations in the bands below 1 GHz to which No. **9.11A**
applies/ground-based mobile in the bands within the range 1‑3 GHz to
which No. **9.11A** applies and aircraft (mobile) terrestrial stations;
ii) aircraft (mobile) earth stations and ground-based terrestrial
stations; and iii) non-GSO MSS feeder-link earth stations and aircraft
(mobile) terrestrial stations. To cover the case of ground-based earth
stations and aircraft terrestrial stations, Table 10 needs to be
modified to include this case with a coordination distance of 500 km.
[The proposal the United States makes here does not apply to frequency
bands already covered in Table 10, including all bands below 3
GHz.]{.underline}

**Proposal**

USA/ /01 MOD

APPENDIX 7

TABLE 10     (WRC-03)

Predetermined coordination distances

**Reasons:** For No. **9.17**, this modification is needed to cover the
case of ground-based earth stations and aircraft terrestrial stations.

> **Document WAC/109(27.04.06):**

**Comments of IWG-5 on Draft U.S. Preliminary View from Exec. Branch
Agencies on**

**WRC-07 Agenda Item 4 (Document IWG-5/57)**

IWG-5 has considered the elements of Document IWG-5/57 that are relevant
to either regulatory issues or agenda items under IWG-5's purview. It
offers the following comments:

1\. With respect to Resolution 27 (Incorporation by Reference), IWG-5
notes that it is highlighted for possible modification to include
reference in Vol 4 of RR for IBR of parts of recommendations. IWG-5
believes that incorporation by reference is a sensitive topic, and that
opening up Resolution 27 to modification would be counter-productive.
Further, IWG-5 notes that Resolution 27 already addresses incorporation
by reference of parts of recommendations (see resolves 5). If there are
instances where Recommendations are not properly incorporated by
reference, or not included in Volume 4 of the Radio Regulations, this
can be corrected on a case-by-case basis within the existing framework.
Accordingly, IWG-5 recommends that the US preliminary view on this
Resolution should be no change (NOC).

2\. With respect to Resolution 229 (5 GHz WAS/RLANs), IWG-5 notes that
it is highlighted as requiring further analysis before a decision can be
made whether it should be modified or not. It is IWG-5's understanding
that the concerns with Resolution 229 have to do with a Recommendation
(or part of) that is incorporated by reference, but not included in
Volume 4 of the Radio Regulations. Given that WRC-03 reached a difficult
compromise on how to handle WAS/RLANs in the 5 GHz bands, and that
companies need certainty in order to build and implement equipment in
these bands, IWG-5 does not believe it would be useful to open up
Resolution 229 for revision. Accordingly, IWG-5 recommends that the US
preliminary view on this Resolution should be no change (NOC).

**Draft Preliminary Views and Proposals**[^15]

**for the**

**2007**

**World Radiocommunication Conference**

**developed by the**

**Executive Branch Agencies**

**and provided by the**

**National Telecommunications and Information Administration (NTIA)**

**II. Draft Proposals on WRC-07 Agenda Items received from the National
Telecommunications and Information Administration (NTIA):**

**Document WAC/091(27.04.06):**

## DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE {#draft-proposal-for-the-work-of-the-conference-5 .unnumbered}

**Agenda Item 1.12**: to consider possible changes in response to
Resolution **86 (Rev. Marrakesh, 2002)** of the Plenipotentiary
Conference: "Advance publication, coordination, notification and
recording procedures for frequency assignments pertaining to satellite
networks" in accordance with Resolution **86 (WRC-03)**;

***Coordination of the radionavigation-satellite service
(space-to-space) in the bands 1 215-1 300 MHz and 1 559-1 610 MHz***

**Background Information**: The scope and criteria to be used for the
implementation of Resolution **86 (Rev. Marrakesh, 2002)** of the
Plenipotentiary Conference by future world radiocommunication
conferences (WRCs) is established in Resolution **86 (WRC‑03)**.
*Resolves 1* of Resolution **86 (WRC-03)** relates to the consideration
of proposals dealing with deficiencies in the advance publication,
coordination and notification procedures of the Radio Regulations for
space services, and Resolves 2 relates to consideration of proposals
intended to transform the content of the Rules of Procedure into
regulatory text.

WRC-2000 added the space-to-space direction to the existing
radionavigation-satellite service (RNSS) (space-to-Earth) allocations in
the bands 1 215-1 300 MHz and 1 559-1 610 MHz, along with footnote
**5.329A**. WRC-03 added footnote **5.328B**, which applied coordination
between two non-GSO RNSS systems and between non-GSO and GSO RNSS
systems in the bands 1 164-1 300 MHz, 1 559-1 610 MHz and 5 010-5 030
MHz under Nos. **9.12**, **9.12A** and **9.13** after 1 January 2005,
without specifying direction (i.e., space-to-Earth or space-to-space).

No. **9.11A** applies the coordination provisions of Nos. **9.12** to
**9.16** where the requirement to coordinate is included in a footnote
to the Table of Frequency Allocations referring to No. **9.11A**. Since
WRC-2000, the Rules of Procedure (RoP), issued by the Radio Regulations
Board (RRB), rather than the Radio Regulations have defined the services
and frequency bands for which the coordination procedure under
No. **9.11A** is required. The RRB considered the application of
No. **9.11A** to the bands given in No. **5.329A** (i.e., 1 215-1 300
and 1 559-1 610 MHz ) and interpreted the Regulations as excluding RNSS
(space-to-space) assignments in the bands given in No. **5.329A** from
any obligation to coordinate with other services and with RNSS
(space-to-Earth), but as obliging these RNSS (space-to-space)
assignments to coordinate with each other.

In addition, many RNSS (space-to-space) network assignments are
receive-only in the bands 1215-1 300 MHz and 1 559-1 610 MHz. Resolution
**610 (WRC-03)**, as referenced in No. **5.328B**, requires
administrations to provide evidence of binding agreements for the
manufacture, procurement, and launch of RNSS systems and networks. This
resolution was intended to aid bilateral coordination between
transmitting RNSS systems and networks by ensuring such systems are
either in operation or in the process of being implemented. Requiring
Resolution **610 (WRC-03)** data for receiving space stations is
unnecessary.

Therefore, modifications to No. **5.329A** and No. **5.328B** are needed
to reflect the RRB decision that requires RNSS (space-to-space) to
coordinate only with other RNSS (space-to-space) but not with other
services or with RNSS (space-to-Earth), and to remove Resolution **610
(WRC-03)** obligations from RNSS receiving space stations.

**Proposal**

USA/ /1 MOD

**5.329A** Use of systems in the radionavigation-satellite service
(space-to-space) operating in the bands 1 215-1 300 MHz and 1 559-1 610
MHz is not intended to provide safety service applications, and shall
not impose any additional constraints on
~~other~~[radionavigation-satellite service
(space-to-Earth)]{.underline} systems or [on other]{.underline} services
operating in accordance with the Table.

**Reasons**: To clarify that "other systems" in No. **5.329A** refers to
the radionavigation-satellite service (space-to-Earth) and that
"services" refers to services other than the radionavigation-satellite
service.

**USA/ /2 MOD**

**5.328B** The use of the bands 1 164-1 300 MHz, 1 559-1 610 MHz and
5 010-5 030 MHz by systems and networks in the radionavigation-satellite
service for which complete coordination or notification information, as
appropriate, is received by the Radiocommunication Bureau after 1
January 2005 is subject to the application of the provisions of Nos.
**9.12**, **9.12A** and **9.13**. [As a consequence of No. **5.329A**,
for systems or networks in the radionavigation-satellite service
(space-to-space) in the bands 1 215-1 300 MHz and 1 559-1 610 MHz, the
application of the provisions of Nos. **9.12**, **9.12A** and **9.13**
is only with respect to other systems or networks in the
radionavigation-satellite service (space-to-space).]{.underline}
Resolution **610 (WRC-03)** shall also apply [to transmitting space
stations.]{.underline}

**Reasons:** To make it clear that the application of the coordination
procedure in Nos**. 9.12**, **9.12A** and **9.13** is only with respect
to other radionavigation-satellite service (space-to-space) in the bands
1 215-1 300 MHz and 1 559-1 610 MHz and to limit the application of
Resolution **610 (WRC-03)** to transmitting space stations.

**Document WAC/092(27.04.06):**

**DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE**

**Agenda Item 1.12:** to consider possible changes in response to
Resolution **86** (Rev. Marrakesh, 2002) of the Plenipotentiary
Conference: "Advance publication, coordination, notification and
recording procedures for frequency assignments pertaining to satellite
networks" in accordance with Resolution **86 (WRC-03)**;

**Background information**: In response to a request by the scientific
and research community responsible for operation of active and passive
sensors on satellites (as defined in Nos. **1.182** and **1.183**), and
in coordination with that community, a set of technical data relating to
these sensors was established for use by all administrations for
registration purposes. The Director of the Radiocommunication Bureau
(BR) published Circular Letter CR/137 of 14 February 2000, which
requests administrations, when submitting advance publication
information to the Bureau on planned Earth exploration-satellite service
(EESS)/space research service (SRS) satellite networks in which active
and/or passive sensors are to be deployed, to kindly also submit
specific information as attached to that Circular Letter.

Following CR/137, the Director of the BR in his Report to the World
Radiocommunication Conference 2003 (WRC-03)[^16] indicated that there
were additional data requirements for the EESS/SRS contained in CR/137
and suggested that the conference might wish to consider reviewing
Appendix **4** to include the additional information. However, no
proposals were submitted to the conference.

Currently, the additional information submitted to BR in accordance with
Circular Letter CR/137 is being scanned and published in the
International Frequency Information Circular (IFIC) (Space services) as
an attachment to the Special Section related to the relevant advanced
publication (API) only. It is not reproduced in the IFIC at the time of
notification. The scanned documents are being published once on IFIC
CD-ROM. These data are neither stored in the Space Network System (SNS)
database nor published on Space Radiocommunication Station on
CD-ROM.[^17] Therefore, the information concerning EESS and SRS
satellite networks where active and passive sensor systems are to be
deployed is not easily available after publication of the API on the
relevant IFIC. This information is useful in analyzing the compatibility
of these sensors with systems operating in other services and
facilitates their advance publication, notification and the subsequent
entry in the Master International Frequency Register (MIFR).

To address the need, the data elements contained in Appendix **4** were
reviewed to determine which existing elements should be required to best
facilitate the advance publication and notification of active and
passive sensors on satellites. Based on the review, the addition of two
new columns to account for the advance publication and notification of
active and passive sensors are proposed. The inclusion of the new
columns would consequentially require modifications to the BR software
and revisions to the Preface to the IFIC, *inter alia,* the inclusion of
new station classes.

Proposal

USA/ /01 MOD

+-----+--------------------------------------------------+-----+-----+
| Ap  |                                                  |     |     |
| pen |                                                  |     |     |
| dix |                                                  |     |     |
| 4   |                                                  |     |     |
|     |                                                  |     |     |
| *   |                                                  |     |     |
| *Ta |                                                  |     |     |
| ble |                                                  |     |     |
| of  |                                                  |     |     |
| cha |                                                  |     |     |
| rac |                                                  |     |     |
| ter |                                                  |     |     |
| ist |                                                  |     |     |
| ics |                                                  |     |     |
| to  |                                                  |     |     |
| be  |                                                  |     |     |
| sub |                                                  |     |     |
| mit |                                                  |     |     |
| ted |                                                  |     |     |
| for |                                                  |     |     |
| sp  |                                                  |     |     |
| ace |                                                  |     |     |
| and |                                                  |     |     |
| ra  |                                                  |     |     |
| dio |                                                  |     |     |
| ast |                                                  |     |     |
| ron |                                                  |     |     |
| omy |                                                  |     |     |
| s   |                                                  |     |     |
| erv |                                                  |     |     |
| ice |                                                  |     |     |
| s** |                                                  |     |     |
| (W  |                                                  |     |     |
| RC- |                                                  |     |     |
| 03) |                                                  |     |     |
+-----+--------------------------------------------------+-----+-----+
| *   | ***A ^\_^ GENERAL CHARACTERISTICS OF THE         | *   | *   |
| *It | SATELLITE NETWORK, EARTH STATION OR RADIO        | *[A | *[A |
| ems | ASTRONOMY STATION***                             | dva | dva |
| in  |                                                  | nce | nce |
| A   |                                                  | pu  | pu  |
| ppe |                                                  | bli | bli |
| ndi |                                                  | cat | cat |
| x** |                                                  | ion | ion |
|     |                                                  | or  | or  |
|     |                                                  | not | not |
|     |                                                  | ifi | ifi |
|     |                                                  | cat | cat |
|     |                                                  | ion | ion |
|     |                                                  | of  | of  |
|     |                                                  | a   | a   |
|     |                                                  | s   | s   |
|     |                                                  | pac | pac |
|     |                                                  | ebo | ebo |
|     |                                                  | rne | rne |
|     |                                                  | act | act |
|     |                                                  | ive | ive |
|     |                                                  | or  | or  |
|     |                                                  | p   | p   |
|     |                                                  | ass | ass |
|     |                                                  | ive | ive |
|     |                                                  | sen | sen |
|     |                                                  | sor | sor |
|     |                                                  | as  | as  |
|     |                                                  | d   | d   |
|     |                                                  | efi | efi |
|     |                                                  | ned | ned |
|     |                                                  | in  | in  |
|     |                                                  | N   | N   |
|     |                                                  | os. | os. |
|     |                                                  | 1.  | 1.  |
|     |                                                  | 182 | 182 |
|     |                                                  | and | and |
|     |                                                  | 1.  | 1.  |
|     |                                                  | 183 | 183 |
|     |                                                  | on  | on  |
|     |                                                  | bo  | bo  |
|     |                                                  | ard | ard |
|     |                                                  | a   | a   |
|     |                                                  | no  | g   |
|     |                                                  | n-g | eos |
|     |                                                  | eos | tat |
|     |                                                  | tat | ion |
|     |                                                  | ion | ary |
|     |                                                  | ary | sat |
|     |                                                  | sat | ell |
|     |                                                  | ell | ite |
|     |                                                  | ite | n   |
|     |                                                  | n   | etw |
|     |                                                  | etw | ork |
|     |                                                  | ork | ]{. |
|     |                                                  | ]{. | und |
|     |                                                  | und | erl |
|     |                                                  | erl | ine |
|     |                                                  | ine | }** |
|     |                                                  | }** |     |
+-----+--------------------------------------------------+-----+-----+
| *   | **IDENTITY OF THE SATELLITE NETWORK, EARTH       | **  | **  |
| *A. | STATION OR RADIOASTRONOMY STATION**              |  ** |  ** |
| 1** |                                                  |     |     |
+-----+--------------------------------------------------+-----+-----+
| A.  | the identity of the satellite network            | *   | *   |
| 1.a |                                                  | *[X | *[X |
|     |                                                  | ]{. | ]{. |
|     |                                                  | und | und |
|     |                                                  | erl | erl |
|     |                                                  | ine | ine |
|     |                                                  | }** | }** |
+-----+--------------------------------------------------+-----+-----+
| A   | the symbol of the notifying administration (see  | *   | *   |
| .1. | the Preface)                                     | *[X | *[X |
| f.1 |                                                  | ]{. | ]{. |
|     |                                                  | und | und |
|     |                                                  | erl | erl |
|     |                                                  | ine | ine |
|     |                                                  | }** | }** |
+-----+--------------------------------------------------+-----+-----+
| A   | if the notice is submitted on behalf of a group  | *   | *   |
| .1. | of administrations, the symbols of each of the   | *[+ | *[+ |
| f.2 | administrations in the group, submitting the     | ]{. | ]{. |
|     | information on the satellite network (see the    | und | und |
|     | Preface)                                         | erl | erl |
|     |                                                  | ine | ine |
|     |                                                  | }** | }** |
+-----+--------------------------------------------------+-----+-----+
| A   | if the notice is submitted on behalf of an       | *   | *   |
| .1. | intergovernmental satellite organization, the    | *[+ | *[+ |
| f.3 | symbol of that organization (see the Preface)    | ]{. | ]{. |
|     |                                                  | und | und |
|     |                                                  | erl | erl |
|     |                                                  | ine | ine |
|     |                                                  | }** | }** |
+-----+--------------------------------------------------+-----+-----+
| *   | **DATE OF BRINGING INTO USE**                    | **  | **  |
| *A. |                                                  |  ** |  ** |
| 2** |                                                  |     |     |
+-----+--------------------------------------------------+-----+-----+

  ----------- -------------------------------------------------- --------------------- ---------------------
  A.2.a       the date (actual or foreseen, as appropriate) of   **[X]{.underline}**   **[X]{.underline}**
              bringing the frequency assignment (new or                                
              modified) into use                                                       

              The date of bringing into use denotes the date at                        
              which the frequency assignment is brought into                           
              regular operation\* to provide the published                             
              radiocommunication service with the technical                            
              parameters within the technical characteristics                          
              notified to the Bureau                                                   

              Whenever the assignment is changed in any of its                         
              basic characteristics (except in the case of a                           
              change under A.1.a, the date to be given shall be                        
              that of the latest change (actual or foreseen, as                        
              appropriate)                                                             

              ^\*^ Pending further studies by ITU-R on the                             
              applicability of the term "regular operation" to                         
              non-geostationary satellite networks, the                                
              condition of regular operation shall be limited to                       
              geostationary satellite networks                                         

  A.2.b       for a space station, the period of validity of the **[X]{.underline}**   **[X]{.underline}**
              frequency assignments (see Resolution **4 (Rev.                          
              WRC-03)**)                                                               

  **A.3**     **OPERATING ADMINISTRATION OR AGENCY**             ** **                 ** **

  A.3.a       the symbol for the operating administration or     **[X]{.underline}**   **[X]{.underline}**
              agency (see the Preface) that is in operational                          
              control of the space station, earth station or                           
              radio astronomy station                                                  

              In the case of Appendix **30B**, required only for                       
              notification under Article 8                                             

  A.3.b       the symbol for the address of the administration   **[X]{.underline}**   **[X]{.underline}**
              (see the Preface) to which communication should be                       
              sent on urgent matters regarding interference,                           
              quality of emissions and questions referring to                          
              the technical operation of the network or station                        
              (see Article **15**)                                                     

              In the case of Appendix **30B**, required only for                       
              notification under Article 8                                             

  **A.4**     **ORBITAL INFORMATION**                            ** **                 ** **

  A.4.a.1     the nominal geographical longitude on the                                **[X]{.underline}**
              geostationary-satellite orbit (GSO)                                      

  A.4.a.2.a   the planned longitudinal tolerance easterly limit  ** **                 **[X]{.underline}**

  A.4.a.2.b   the planned longitudinal tolerance westerly limit  ** **                 **[X]{.underline}**

  A.4.a.2.c   the planned inclination excursion                  ** **                 **[X]{.underline}**

  A.4.b.1     the number of orbital planes                       **[X]{.underline}**   

  A.4.b.2     the reference body code                            **[X]{.underline}**   

  A.4.b.4.a   the angle of inclination (*i~j~*) of the orbital   **[X]{.underline}**   
              plane with respect to the Earth's equatorial plane                       
              (0° ≤ *i~j~* \< 180°)                                                    

  A.4.b.4.b   the number of satellites in the orbital plane      **[X]{.underline}**   

  A.4.b.4.c   the period                                         **[X]{.underline}**   

  A.4.b.4.d   the altitude, in kilometres, of the apogee of the  **[X]{.underline}**   
              space station                                                            

  A.4.b.4.e   the altitude, in kilometres, of the perigee of the **[X]{.underline}**   
              space station                                                            
  ----------- -------------------------------------------------- --------------------- ---------------------

  ------------ -------------------------------------------------- ------------------------ ------------------------
  **A.5**      **COORDINATIONS**                                                           ** **

  **A.6**      **AGREEMENTS**                                                              ** **

  **A.7**      **SPECIFIC EARTH STATION OR RADIO ASTRONOMY                                 ** **
               STATION SITE CHARACTERISTICS**                                              

  **A.8**      **Not used**                                                                ** **

  **A.9**      **Not used**                                                                ** **

  **A.10**     **EARTH STATION COORDINATION AREA DIAGRAMS**                                ** **

  **A.11**     **REGULAR HOURS OF OPERATION**                                              ** **

  **A.12**     **RANGE OF AUTOMATIC GAIN CONTROL, in dB**                                  ** **

  **A.13**     **REFERENCES TO THE PUBLISHED SPECIAL SECTIONS OF                           ** **
               THE BUREAU\'S INTERNATIONAL FREQUENCY INFORMATION                           
               CIRCULAR (see the Preface)**                                                

  A.13.a       the reference and number of the advance            **[X^3^]{.underline}**   **[X^3^]{.underline}**
               publication information in accordance with No.                              
               **9.1**                                                                     

  **A.14**     **FOR STATIONS OPERATING IN A FREQUENCY BAND       ** **                    ** **
               SUBJECT TO Nos. 22.5C, 22.5D OR 22.5F: SPECTRUM                             
               MASKS**                                                                     

  **A.15**     **COMMITMENT REGARDING COMPLIANCE WITH ADDITIONAL  ** **                    ** **
               OPERATIONAL EQUIVALENT POWER FLUX DENSITY,                                  
               epfd~↓~, LIMITS**                                                           

  **A.16**     **COMMITMENT REGARDING COMPLIANCE WITH OFF^\_^AXIS ** **                    ** **
               POWER LIMITATIONS OR POWER FLUX-DENSITY, pfd,                               
               LIMITS**                                                                    

  **A.17**     **COMPLIANCE WITH POWER FLUX-DENSITY, pfd,         ** **                    ** **
               LIMITS**                                                                    

  A.17.d       the mean power flux-density produced at the        **[+]{.underline}**      **[+]{.underline}**
               Earth's surface by any spaceborne sensor, as                                
               defined in No. **5.549A**                                                   

               Required only for satellite systems operating in                            
               the Earth exploration-satellite service (active)                            
               or space research service (active) in the band                              
               35.5-36 GHz                                                                 

  **Items in   ***B ^\_^ CHARACTERISTICS TO BE PROVIDED FOR EACH  **[Advance publication   **[Advance publication
  Appendix**   SATELLITE ANTENNA BEAM OR EACH EARTH STATION OR    or notification of a     or notification of a
               RADIO ASTRONOMY ANTENNA***                         spaceborne active or     spaceborne active or
                                                                  passive sensor as        passive sensor as
                                                                  defined in Nos. 1.182    defined in Nos. 1.182
                                                                  and 1.183 on board a     and 1.183 on board a
                                                                  non-geostationary        geostationary satellite
                                                                  satellite                network]{.underline}**
                                                                  network]{.underline}**   
  ------------ -------------------------------------------------- ------------------------ ------------------------

  ------------ -------------------------------------------------- ------------------------ ------------------------
  **B.1**      **IDENTIFICATION AND DIRECTION OF THE SATELLITE                             ** **
               ANTENNA BEAM**                                                              

  B.1.a        the designation of the satellite antenna beam      **[X]{.underline}**      **[X]{.underline}**

               For an earth station, the designation of the                                
               satellite antenna beam of the associated space                              
               station                                                                     

  B.1.b        an indicator showing whether the antenna beam,     **[X]{.underline}**      **[X]{.underline}**
               under B.1.a, is fixed or whether it is steerable                            
               and / or reconfigurable                                                     

  **B.2**      **TRANSMISSION / RECEPTION INDICATOR FOR THE BEAM  ** **                    ** **
               OF THE SPACE STATION OR THE ASSOCIATED SPACE                                
               STATION**                                                                   

  **B.3**      **SPACE STATION ANTENNA CHARACTERISTICS**          ** **                    ** **

  B.3.a.1      the maximum co-polar isotropic gain, in dBi        **[X]{.underline}**      **[X]{.underline}**

               Where a steerable beam (see No. **1.191**) is                               
               used, if the effective boresight area (see No.                              
               **1.175**) is identical with the global service                             
               area, the maximum antenna gain, in dBi, is                                  
               applicable to all points on the Earth's visible                             
               surface                                                                     

  B.3.c.1      the co-polar antenna radiation pattern, in the     **[X]{.underline}**      **[X]{.underline}**
               case of:                                                                    

               -- non-geostationary space stations                                         

               -- geostationary or non-geostationary space                                 
               stations where the antenna radiation beam is                                
               directed towards another satellite                                          

               -- elliptical antenna beams for Appendix **30**,                            
               **30A** or **30B**                                                          

  **B.4**      **ADDITIONAL CHARACTERISTICS FOR NON-GEOSTATIONARY ** **                    ** **
               SPACE STATION ANTENNA**                                                     

  B.4.b.1.a    the orientation angle alpha, in degrees, (see most **[X]{.underline}**      **[X]{.underline}**
               recent version of Recommendation ITU-R SM.1413)                             

  B.4.b.1.b    the orientation angle beta, in degrees, (see most  **[X]{.underline}**      **[X]{.underline}**
               recent version of Recommendation ITU-R SM.1413)                             

  **Items in   ***C ^\_^ CHARACTERISTICS TO BE PROVIDED FOR EACH  **[Advance publication   **[Advance publication
  Appendix**   GROUP OF FREQUENCY ASSIGNMENTS FOR A SATELLITE     or notification of a     or notification of a
               ANTENNA BEAM OR AN EARTH STATION OR RADIO          spaceborne active or     spaceborne active or
               ASTRONOMY ANTENNA***                               passive sensor as        passive sensor as
                                                                  defined in Nos. 1.182    defined in Nos. 1.182
                                                                  and 1.183 on board a     and 1.183 on board a
                                                                  non-geostationary        geostationary satellite
                                                                  satellite                network]{.underline}**
                                                                  network]{.underline}**   
  ------------ -------------------------------------------------- ------------------------ ------------------------

  --------- -------------------------------------------------- ------------------------ ------------------------
  **C.1**   **FREQUENCY RANGE**                                                         ** **

  **C.2**   **ASSIGNED FREQUENCY (FREQUENCIES)**                                        ** **

  C.2.a.1   the assigned frequency (frequencies), as defined   **[X^4^]{.underline}**   **[X^4^]{.underline}**
            in No. **1.148**                                                            

            ^\_^ in kHz up to 28 000 kHz inclusive                                      

            ^\_^ in MHz above 28 000 kHz to 10 500 MHz                                  
            inclusive                                                                   

            ^\_^ in GHz above 10 500 MHz                                                

            If the basic characteristics are identical, with                            
            the exception of the assigned frequency, a list of                          
            frequency assignments may be provided                                       

            In the case of Appendix **30B**, required only for                          
            notification under Article 8                                                

  C.2.b     the centre of the frequency band observed          **[X^5^]{.underline}**   **[X^5^]{.underline}**

            ^\_^ in kHz up to 28 000 kHz inclusive                                      

            ^\_^ in MHz above 28 000 kHz to 10 500 MHz                                  
            inclusive                                                                   

            ^\_^ in GHz above 10 500 MHz                                                

  C.2.c     if the frequency assignment is to be filed under   **[+]{.underline}**      **[+]{.underline}**
            No. **4.4**, an indication to that effect                                   

  **C.3**   **ASSIGNED FREQUENCY BAND**                                                 ** **

  C.3.a     the bandwidth of the assigned frequency band, in   **[X^4^]{.underline}**   **[X^4^]{.underline}**
            kHz (see No. **1.147**)                                                     

            In the case of Appendix **30B**, required only for                          
            notification under Article 8                                                

  C.3.b     the bandwidth of the frequency band, in kHz,       **[X^5^]{.underline}**   **[X^5^]{.underline}**
            observed by the station                                                     

  **C.4**   **CLASS OF STATION AND NATURE OF SERVICE**                                  ** **

  C.4.a     the class of station, using the symbols from the   **[X]{.underline}**      **[X]{.underline}**
            Preface                                                                     

  C.4.b     the nature of service performed, using the symbols **[X]{.underline}**      **[X]{.underline}**
            from the Preface                                                            

  **C.5**   **RECEIVING SYSTEM NOISE TEMPERATURE**                                      ** **

  **C.6**   **POLARIZATION**                                                            ** **

  C.6.a     the type of polarization (see the Preface)         **[X^3^]{.underline}**   **[X^3^]{.underline}**

            In the case of circular polarization, this                                  
            includes the sense of polarization (see Nos.                                
            **1.154** and **1.155**)                                                    

            In the case of a space station submitted in                                 
            accordance with Appendix **30** or **30A**, see                             
            § 3.2 of Annex 5 to Appendix **30**                                         

  C.6.b     if linear polarization is used, the angle, in      **[+^3^]{.underline}**   **[+^3^]{.underline}**
            degrees, measured counter-clockwise in a plane                              
            normal to the beam axis from the equatorial plane                           
            to the electric vector of the waves as seen from                            
            the satellite                                                               

            In the case of a space station submitted in                                 
            accordance with Appendix **30** or **30A**, see                             
            § 3.2 of Annex 5 to Appendix **30**                                         
  --------- -------------------------------------------------- ------------------------ ------------------------

  --------- -------------------------------------------------- ------ -------
  **C.7**   **NECESSARY BANDWIDTH AND CLASS OF EMISSION**             ** **

            (in accordance with Article **2** and Appendix            
            **1)**                                                    
  --------- -------------------------------------------------- ------ -------

  ------------ -------------------------------------------------- ------------------------ ------------------------
  **C.8**      **POWER CHARACTERISTICS OF THE TRANSMISSION**                               ** **

  C.8.b.1      the total peak envelope power, in dBW, supplied to **[X^4^]{.underline}**   **[X^4^]{.underline}**
               the input of the antenna                                                    

               For coordination or notification of an Appendix                             
               **30A** earth station the values shall include the                          
               maximum range of power control                                              

               [For notification of active sensors the values                              
               shall include the average power, in                                         
               dBW.]{.underline}                                                           

               Required if C.8.a.1 is not provided                                         

  **C.9**      **INFORMATION ON MODULATION CHARACTERISTICS**                               ** **

  **C.10**     **TYPE AND IDENTITY OF THE ASSOCIATED STATION(S)** ** **                    

               (the associated station may be another space                                
               station, a typical earth station of the network or                          
               a specific earth station)                                                   

  **C.11**     **SERVICE AREA(S)**                                                          

  **C.12**     **REQUIRED PROTECTION RATIO**                                                

  **C.13**     **CHARACTERISTICS OF OBSERVATIONS FOR RADIO                                  
               ASTRONOMY STATIONS**                                                        

  **C.14**     **Not used**                                                                ** **

  **C.15**     **DESCRIPTION OF THE GROUP(S) REQUIRED IN THE CASE                           
               OF NON-SIMULTANEOUS EMISSIONS**                                             

  **Items in   ***D ^\_^ OVERALL LINK CHARACTERISTICS***          **[Advance publication   **[Advance publication
  Appendix**                                                      or notification of a     or notification of a
                                                                  spaceborne active or     spaceborne active or
                                                                  passive sensor as        passive sensor as
                                                                  defined in Nos. 1.182    defined in Nos. 1.182
                                                                  and 1.183 on board a     and 1.183 on board a
                                                                  non-geostationary        geostationary satellite
                                                                  satellite                network]{.underline}**
                                                                  network]{.underline}**   
  ------------ -------------------------------------------------- ------------------------ ------------------------

**Reasons:** To modify Appendix **4** in order to facilitate the filing
of active and passive sensors as defined in Nos. **1.182** and **1.183**
respectively.

USA/ /02 MOD

ANNEX 2

Characteristics of satellite networks, earth stations\
or radio astronomy stations[^18]     (WRC-03)

### Footnotes to Tables A, B, C and D {#footnotes-to-tables-a-b-c-and-d .heading_b}

1 Not required for coordination under No. **9.7A**.

2 The most recent version of Recommendation ITU‑R SF.675 should be used
to the extent applicable in calculating the maximum power density per
Hz. For carriers below 15 GHz, the power density is averaged over the
worst 4 kHz band. For carriers at or above 15 GHz, the power density is
averaged over the worst 1 MHz band. In the case of assignments with a
bandwidth less than the stated averaging bandwidth, the maximum density
is calculated as if the assignment occupied the averaging bandwidth.

[3 Required at notification only.]{.underline}

[4 Required only for active sensors, as defined in No. **1.182**, at
notification.]{.underline}

[5 Required only for passive sensors, as defined in No. **1.183**, at
notification.]{.underline}

**Reasons**: Consequential. Definition of footnotes inserted into the
spaceborne active and passive sensor column proposed in USA/ /01 is
required. Due to the fact that active sensors are emitters and passive
sensors are not, certain data elements are applicable only to one type
of sensor.

USA/ /03 MOD

+-----+----------------------------------------------------+------+---+
| Ap  |                                                    |      |   |
| pen |                                                    |      |   |
| dix |                                                    |      |   |
| 4   |                                                    |      |   |
|     |                                                    |      |   |
| *   |                                                    |      |   |
| *Ta |                                                    |      |   |
| ble |                                                    |      |   |
| of  |                                                    |      |   |
| cha |                                                    |      |   |
| rac |                                                    |      |   |
| ter |                                                    |      |   |
| ist |                                                    |      |   |
| ics |                                                    |      |   |
| to  |                                                    |      |   |
| be  |                                                    |      |   |
| sub |                                                    |      |   |
| mit |                                                    |      |   |
| ted |                                                    |      |   |
| for |                                                    |      |   |
| sp  |                                                    |      |   |
| ace |                                                    |      |   |
| and |                                                    |      |   |
| ra  |                                                    |      |   |
| dio |                                                    |      |   |
| ast |                                                    |      |   |
| ron |                                                    |      |   |
| omy |                                                    |      |   |
| s   |                                                    |      |   |
| erv |                                                    |      |   |
| ice |                                                    |      |   |
| s** |                                                    |      |   |
| (W  |                                                    |      |   |
| RC- |                                                    |      |   |
| 03) |                                                    |      |   |
+-----+----------------------------------------------------+------+---+
| *   | ***A ^\_^ GENERAL CHARACTERISTICS OF THE SATELLITE | **   | * |
| *It | NETWORK, EARTH STATION OR RADIO ASTRONOMY          | Noti | * |
| ems | STATION***                                         | fica | N |
| in  |                                                    | tion | o |
| A   |                                                    | or   | t |
| ppe |                                                    | coor | i |
| ndi |                                                    | dina | f |
| x** |                                                    | tion | i |
|     |                                                    | of a | c |
|     |                                                    | geo  | a |
|     |                                                    | stat | t |
|     |                                                    | iona | i |
|     |                                                    | ry-s | o |
|     |                                                    | atel | n |
|     |                                                    | lite | o |
|     |                                                    | net  | r |
|     |                                                    | work | c |
|     |                                                    | (i   | o |
|     |                                                    | nclu | o |
|     |                                                    | ding | r |
|     |                                                    | s    | d |
|     |                                                    | pace | i |
|     |                                                    | o    | n |
|     |                                                    | pera | a |
|     |                                                    | tion | t |
|     |                                                    | f    | i |
|     |                                                    | unct | o |
|     |                                                    | ions | n |
|     |                                                    | u    | o |
|     |                                                    | nder | f |
|     |                                                    | Art  | a |
|     |                                                    | icle | n |
|     |                                                    | 2A   | o |
|     |                                                    | of   | n |
|     |                                                    | Ap   | - |
|     |                                                    | pend | g |
|     |                                                    | ices | e |
|     |                                                    | 30   | o |
|     |                                                    | or   | s |
|     |                                                    | 30   | t |
|     |                                                    | A)** | a |
|     |                                                    |      | t |
|     |                                                    |      | i |
|     |                                                    |      | o |
|     |                                                    |      | n |
|     |                                                    |      | a |
|     |                                                    |      | r |
|     |                                                    |      | y |
|     |                                                    |      | - |
|     |                                                    |      | s |
|     |                                                    |      | a |
|     |                                                    |      | t |
|     |                                                    |      | e |
|     |                                                    |      | l |
|     |                                                    |      | l |
|     |                                                    |      | i |
|     |                                                    |      | t |
|     |                                                    |      | e |
|     |                                                    |      | n |
|     |                                                    |      | e |
|     |                                                    |      | t |
|     |                                                    |      | w |
|     |                                                    |      | o |
|     |                                                    |      | r |
|     |                                                    |      | k |
|     |                                                    |      | * |
|     |                                                    |      | * |
+-----+----------------------------------------------------+------+---+

+-----+----------------------------------------------------+------+---+
| A.1 | the mean power flux-density produced at the        | *    | * |
| 7.d | Earth's surface by any spaceborne sensor, as       | *~~+ | * |
|     | defined in No. **5.549A**                          | ~~** | ~ |
|     |                                                    |      | ~ |
|     |                                                    |      | + |
|     |                                                    |      | ~ |
|     |                                                    |      | ~ |
|     |                                                    |      | * |
|     |                                                    |      | * |
+-----+----------------------------------------------------+------+---+
|     | > Required only for satellite systems operating in |      |   |
|     | > the Earth exploration-satellite service (active) |      |   |
|     | > or space research service (active) in the band   |      |   |
|     | > 35.5-36 GHz                                      |      |   |
+-----+----------------------------------------------------+------+---+

**Reasons:** Consequential. The addition in Appendix **4** of data
element A.17.d in the columns for spaceborne active and passive sensors
as proposed in USA/ /01 makes its inclusion in the coordination and
notification of satellite networks columns redundant. Therefore, it may
be deleted from the two columns shown.

**Document WAC/093(27.04.06):**

**DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE**

**Agenda Item 1.12**: to consider possible changes in response to
Resolution **86 (Rev.** **Marrakesh, 2002)** of the Plenipotentiary
Conference: "Advance publication, coordination, notification and
recording procedures for frequency assignments pertaining to satellite
networks" in accordance with Resolution **86 (WRC-03)**;

***Regulatory Procedures and associated technical criteria applicable to
satellite networks***

***Modification to Appendix 7, Table 10***

**Background information**: Resolution **86 (Rev. Marrakesh, 2002)**
requested that WRC-03 and subsequent Conferences review the regulatory
procedures associated with the advance publication, coordination,
notification and recording of frequency assignments pertaining to
satellite network. WRC-03 identified in Resolution **86 (WRC‑03)** the
scope and the criteria to be used for the implementation of Resolution
**86 (Rev. Marrakesh, 2002)**. Resolves 1 of Resolution **86 (WRC-03)**
specifically states that WRC-07 should "consider any proposals which
deal with deficiencies in the advance publication, coordination,
notification and recording procedures of the Radio Regulations (RR) for
space services which have either been identified by the Board and
included in the Rules of Procedure or which have been identified by
administrations or by the Bureau as appropriate."

A review of Appendix **7**, Table 10 (Predetermined coordination
distance) indicates that the case of ground-based earth stations and
aircraft terrestrial stations, except for those specifically identified
cases in the table, is missing. In the past the Radiocommunications
Bureau has used the predetermined distance of 500 km for this case,
e.g., see Document RRB98/134(Rev.1) dated 8 December 1998. This
coordination distance was derived assuming line-of-sight propagation
between the aircraft and ground-based stations with a 4/3 Earth radius
and the aircraft altitude of 12 km. The 500 km is consistent with the
distance currently applicable to the similar cases of coordination
between aircraft and ground-based stations such as i) ground-based earth
stations in the bands below 1 GHz to which No. **9.11A**
applies/ground-based mobile in the bands within the range 1‑3 GHz to
which No. **9.11A** applies and aircraft (mobile) terrestrial stations;
ii) aircraft (mobile) earth stations and ground-based terrestrial
stations; and iii) non-GSO MSS feeder-link earth stations and aircraft
(mobile) terrestrial stations. To cover the case of ground-based earth
stations and aircraft terrestrial stations, Table 10 needs to be
modified to include this case with a coordination distance of 500 km.

**Proposal**

USA/ /01 MOD

APPENDIX 7

TABLE 10     (WRC-03)

Predetermined coordination distances

## Reasons: For No. 9.17, this modification is needed to cover the case of ground-based earth stations and aircraft terrestrial stations. {#reasons-for-no.-9.17-this-modification-is-needed-to-cover-the-case-of-ground-based-earth-stations-and-aircraft-terrestrial-stations. .unnumbered}

**Document WAC/094(27.04.06):**

DRAFT PROPOSALS FOR THE WORK OF THE CONFERENCE

**Agenda Item 1.17:** to consider the results of ITU-R studies on
compatibility between the fixed-satellite service and other services
around 1.4 GHz, in accordance with Resolution **745 (WRC-03);**

**Background Information:** WRC-03 made a conditional secondary
allocation to the fixed- satellite service (FSS) for feeder links for
non‑geostationary-satellite (NGSO) networks in the mobile-satellite
service (MSS) with service links below 1 GHz (NGSO-MSS) through RR
**5.539A** in the bands 1 390 -- 1 392 MHz (Earth-to-space) and 1 430 --
1 432 MHz (space-to-Earth). However, due to the fact that there were
insufficient and/or incomplete studies and test measurements with regard
to the protection of other services with allocations in these bands or
in the nearby passive band 1 400 -- 1 427 MHz, Resolution **745
(WRC-03)** resolves that these feederlink allocations shall not be used
until the completion of all studies and the results of these studies
reported to WRC‑07.

The frequency band 1 350 -- 1 400 MHz is allocated worldwide on a
primary basis to the radiolocation service (RLS) and in Region 1 to the
fixed and mobile services. The band 1 370 -- 1 400 MHz is allocated
worldwide on a secondary basis to the space research (SRS) (passive) and
Earth exploration-satellite (EESS) (passive) services by RR **5.339**.
The band 1 330 -- 1 400 MHz is also used by the radio astronomy service
(RAS) for observations of the red-shifted neutral hydrogen line and RR
**5.149** urges administrations to take all practicable steps to protect
it from harmful interference.

The band 1 400-1 427 MHz is allocated to the EESS (passive), the RAS and
the SRS (passive) on a worldwide basis. For the RAS, this band is the
most important band for studies of the hydrogen line and for continuum
observations. This band is also used world-wide for the Very Long
Baseline Interferometry (VLBI) technique which is utilized for radio
astronomical studies requiring high angular resolution. For the EESS
(passive), the band 1 400 -- 1 427 MHz is a vital resource for measuring
ocean salinity and soil moisture content of the Earth. This band is one
of the select bands for which RR **5.340** prohibits all emissions,
emphasizing its particular importance for the science community.

The band 1 427 -- 1 452 MHz is allocated on a primary basis to the fixed
and mobile services worldwide. The band 1 427 -- 1 429 MHz is also
allocated on a primary basis to the space operation service
(Earth-to-space) in all three Regions. Additionally, RR **5.342**
allocates the band 1 429 -- 1 535 MHz on a primary basis in some
administrations to the aeronautical mobile service exclusively for the
purposes of aeronautical telemetry within their national territory.

**A. Band 1 430 -- 1 432 MHz (feederlink downlink)**

Since the NGSO-MSS feederlinks are allocated on a secondary basis, they
cannot cause harmful interference to nor claim protection from the fixed
and mobile services in this band. ITU-R studies based on the fractional
degradation of performance criterion used by the fixed service have
concluded that a pfd limit of --164 dBW/m² in a 4 kHz bandwidth should
be adequate to protect the fixed service, as well as the mobile service.

In addition, ITU-R studies have shown that the pfd limits are necessary
to protect the aeronautical telemetry systems used under the mobile
service in the territory of countries identified in RR **5.342:**

--181 dB(W/m^2^) 0 ≤ α ≤ 4

--193 +20 log α dB(W/m^2^) 4 \< α ≤ 20

--213.3 + 35.6 log α dB(W/m^2^) 20 \< α ≤ 60

--150 dB(W/m^2^) 60 \< α ≤ 90

where α is the angle of arrival (degrees above the horizontal plane).

To protect the RAS operations in the band 1 400 -- 1 427 MHz, studies in
the ITU-R have resulted in Recommendation ITU-R M.\[8/102 Rev. 1\] which
recommends the following epfd limits:

-   an epfd of --259 dBW/m^2^ in any 20 kHz bandwidth of the band 1 400
    -- 1 427 MHz for more than 98% of integration periods of 2,000
    seconds for spectral line observations; and

-   an epfd of --243 dBW/m^2^ in the entire 1 400 -- 1 427 MHz band for
    more than 98% of integration periods of 2,000 seconds for continuum
    (broadband) observations.

Studies in the ITU-R have resulted in Recommendation ITU-R M.\[8/101
Rev. +1\] which recommends that an unwanted emission power limit of -46
dBW in the passive band 1 400 -- 1 427 MHz at the satellite antenna port
would be sufficient to protect all EESS systems which are expected to
use the band.

No studies have been done concerning the space operations service
(Earth-to-space) operating in the 1 427 -- 1 429 MHz band due to the
lack of participation from service providers who would be using the
NGSO-MSS allocation.

**B. Band 1 390 -- 1 392 MHz (feederlink uplink)**

The protection of the fixed and mobile services within the band
1 390-1 392 MHz can be accomplished by requiring appropriate separation
distances between the NGSO-MSS feederlink earth stations and the fixed
and mobile stations. However, detailed information on these separation
distances is not available in any ITU-R studies at this time.

The protection of the radiolocation service stations operating in the
1 350 -- 1 400 MHz band has not been extensively studied. However, one
ITU-R study on the compatibility of the NGSO-MSS feederlink uplinks that
may operate in the 1 390 -- 1 392 MHz band with aeronautical
radiolocation receivers indicates that the interference from the
NGSO-MSS feederlink uplinks exceeds the aeronautical radiolocation
receivers interference criteria by anywhere from 37.9 dB to as much as
85.4 dB. The study concludes that sharing is not feasible between these
two types of systems.

To protect the radioastronomy service operations in the 1 330 -- 1 400
MHz band, Recommendation ITU-R M.\[8/102 Rev. 1\] recommends that the
NGSO-MSS feederlink earth stations be separated from radio astronomy
stations which conduct observations in the band 1 400 -- 1 427 MHz, such
that the total data loss due to feederlink uplink and downlink emissions
does not exceed 2%.

To protect the EESS (passive) operations in the band 1 400 -- 1 427 MHz,
Recommendation ITU-R M. \[8/101 Rev. 1\] recommends that an unwanted
emission power limit of --63 dBW in the passive band 1 400 -- 1 427 MHz
at the antenna port of the NGSO-MSS feederlink earth station would be
sufficient to protect all EESS passive sensors which are expected to use
the band.

One ITU-R study was done on the potential interference from NGSO-MSS
feederlink uplinks that may operate in the 1 390 -- 1 392 MHz band into
passive sensors operating in the secondary allocation to EESS (passive)
in the 1 370 -- 1 400 MHz band. The results of this study indicate that
the co-channel interference into the passive sensor would exceed the
interference threshold by as much as 82 dB and as often as 42% of the
time.

**Summary**

From these study results given in Resolution **745 (WRC-03)**, it is
likely that the NGSO-MSS feederlinks will be able to use the allocated
bands only with significant constraints required to protect the existing
services. It is clear that some studies have indicated problems sharing
the 1 390 -- 1 392 MHz band with existing services. Furthermore, no
service providers are continuing to pursue opportunities or
participating in relevant studies to use this allocation. Their absence
indicates a lack of need for the allocation. Therefore, suppression of
the conditional allocation to the NGSO-MSS feederlink allocations in the
1 390 -- 1 392 MHz and 1 430 -- 1 432 MHz bands is proposed.

The absence of NGSO-MSS interests indicated the lack of need for the
allocation.

**Proposals**

article 5

**USA/ /1 MOD**

1 300-1 525 MHz

+----------------------+----------------------+-----------------------+
| Allocation to        |                      |                       |
| services             |                      |                       |
+----------------------+----------------------+-----------------------+
| Region 1             | Region 2             | Region 3              |
+----------------------+----------------------+-----------------------+
| **1 350-1 400**      | **1 350-1 400**      |                       |
|                      |                      |                       |
| FIXED                | RADIOLOCATION        |                       |
|                      |                      |                       |
| MOBILE               |                      |                       |
|                      |                      |                       |
| RADIOLOCATION        |                      |                       |
+----------------------+----------------------+-----------------------+
| 5.149 5.338 5.339    | 5.149 5.334 5.339    |                       |
| ~~5.339A~~           | ~~5.339A~~           |                       |
+----------------------+----------------------+-----------------------+
| **1 400-1 427**      |                      |                       |
| EARTH                |                      |                       |
| E                    |                      |                       |
| XPLORATION-SATELLITE |                      |                       |
| (passive)            |                      |                       |
|                      |                      |                       |
| RADIO ASTRONOMY      |                      |                       |
|                      |                      |                       |
| SPACE RESEARCH       |                      |                       |
| (passive)            |                      |                       |
|                      |                      |                       |
| 5.340 5.341          |                      |                       |
+----------------------+----------------------+-----------------------+
| **1 427-1 429**      |                      |                       |
| SPACE OPERATION      |                      |                       |
| (Earth-to-space)     |                      |                       |
|                      |                      |                       |
| FIXED                |                      |                       |
|                      |                      |                       |
| MOBILE except        |                      |                       |
| aeronautical mobile  |                      |                       |
|                      |                      |                       |
| 5.341                |                      |                       |
+----------------------+----------------------+-----------------------+
| **1 429-1 452**      | **1 429-1 452**      |                       |
|                      |                      |                       |
| FIXED                | FIXED                |                       |
|                      |                      |                       |
| MOBILE except        | MOBILE 5.343         |                       |
| aeronautical\        |                      |                       |
| mobile               |                      |                       |
+----------------------+----------------------+-----------------------+
| ~~5.339A~~ 5.341     | ~~5.339A~~ 5.341     |                       |
| 5.342                |                      |                       |
+----------------------+----------------------+-----------------------+

**USA/ /2 SUP**

**5.339A**

**Reasons:** Suppression of the conditional allocation to the FSS for
NGSO-MSS feederlinks is warranted due to lack of need for such an
allocation and the sharing and/or compatibility difficulties with
existing services using the allocated bands or the nearby passive band.

**USA/ /3 SUP**

RESOLUTION 745 (WRC-03)

Protection of existing services in all Regions from
non-geostationary-satellite\
networks in the fixed-satellite service using the frequency bands\
around 1.4 GHz on a secondary basis

**Reasons:** Consequential to the above proposals.

**Document WAC/095(27.04.06):**

## DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE {#draft-proposal-for-the-work-of-the-conference-6 .unnumbered}

**WRC-07 Agenda Item 1.20**[^19]**:** to consider the results of
studies, and proposals for regulatory measures, if appropriate,
regarding the protection of the Earth exploration-satellite service
(passive) from unwanted emissions of active services in accordance with
Resolution **738 (WRC--03)**;

**Background Information:** The *resolves* in Resolution **738** calls
for three actions: 1) study the compatibility between EESS (passive) and
the corresponding active services listed in the Table in Resolution
**738** to update Recommendation ITU-R SM.1633 or develop additional
Recommendations; 2) further study the impact of implementing the values
in *considering f* ) and *g*) in the bands 31--31.3 GHz and
51.4--52.6 GHz for unwanted emissions of systems operating in Region 2
and 3, taking into account that the impact on fixed-service systems in
Region 1 is documented in ITU-R Recommendation SM.1633; and 3) review
the results of studies in 1) and 2) in order to consider regulatory
measures, if appropriate, to ensure the protection of the EESS (passive)
operating in the bands listed in the table in Resolution **738** **(WRC
03)** from unwanted emissions of active services operating in the
corresponding bands while taking into account the impact on all
concerned services of implementing or not implementing such measures.
The table below shows the frequency band and radiocommunication service
combinations within the scope of the agenda item.

Studies documented in Recommendation ITU--R SM.1633 show that active
services in some of these bands do not produce significant unwanted
emissions in the adjacent passive band. However, active services in
other bands produce unwanted emissions in excess of EESS (passive)
protection requirements. Because of the differences between the active
services, and the differences in the use of the active and passive
services from band to band, the solutions for this agenda item have been
determined on a band-by-band and service-by-service basis. The proposed
solutions were determined considering the impact to both the active and
passive services.

Resolution **738** can be suppressed, and there is no need for an agenda
item dealing with unwanted emission levels in EESS (passive) bands for
the next Conference.

**Proposal:**

**USA/ /1 MOD**

**USA/ /2 ADD**

**5.AAA** In order to ensure the protection of the Earth
exploration-satellite (passive) service in the band 1 400--1 427 MHz,
the unwanted emissions power delivered to the antenna of any station in
the fixed service operating in the band 1 350--1 400 MHz or in the band
1 427--1 452 MHz shall be limited to --45 dBW in the 27 MHz reference
bandwidth of the band 1 400--1 427 MHz. Fixed service systems in
operation at the date of entry into force of the Final Acts of WRC-07
are not subject to this limit.

**Reasons:** Results of studies documented in Recommendation ITU--R
SM.1633 show that large numbers of higher power fixed service
transmitters can cause significant levels of unwanted emissions in the
1 400--1 427 MHz passive band. Considering equitable burden-sharing
between the active and passive services, the single-entry unwanted
emission limit proposed for future systems will slightly exceed the
desired protection level of the EESS (passive) sensors in some cases,
but will still allow the collection of valuable scientific data and will
not place an undue burden on the future development and use of the fixed
service in these nearby bands.

**USA/ /3 [NOC]{.underline}**

No change to Radio Regulations regarding the radiolocation service
allocation in the band 1 350--1 400 MHz.

**Reasons:** Although studies documented in Recommendation ITU--R
SM.1633 show that the radiolocation unwanted emissions in the EESS
(passive) band at 1 400--1 427 MHz would exceed the permissible
interference threshold in Recommendation ITU--R SA.1029--2, any
interference would occur for only short time periods and would be
readily discernible by users of the remote sensing data, allowing
corrupted data to be discarded. The remaining uncorrupted data is
expected to satisfy the scientific objectives of the EESS missions.
Studies also show that radars would experience unacceptable degradation
in operational coverage and range, target resolution, and accuracy if
required to meet unwanted emission limits in the 1 400--1 427 MHz band.
As with other pairs of active and passive bands, use of portions of the
allocated bands must not be restricted. Radars would suffer an increased
likelihood of interference from other radars and a reduction in coverage
range, while a reduced bandwidth would be inadequate for remote sensing
requirements.

**USA/ /4 ADD**

**5.BBB** In order to ensure the protection of the Earth
exploration-satellite (passive) service in the band 1 400--1 427 MHz,
the unwanted emissions e.i.r.p. of any earth station in the space
operation service (Earth-to-space) operating in the band 1 427--1 429
MHz shall be limited to 8 dBW in the 27 MHz reference bandwidth of the
band 1 400--1 427 MHz. Space operation service earth stations in
operation at the date of entry into force of the Final Acts of WRC-07
are not subject to this limit.

**Reasons:** Results of studies documented in Recommendation ITU--R
SM.1633 show that earth station transmitters in the 1 427--1 429 MHz
band can cause significant levels of unwanted emissions in the
1 400--1 427 MHz passive band. Considering equitable burden-sharing
between the active and passive services, the single-entry unwanted
emission limit proposed for future systems will slightly exceed the
desired protection level of the EESS (passive) sensors in some cases,
but will still allow the collection of valuable scientific data and will
not place an undue burden on the future development and use of the space
operation service (Earth-to-space) in the 1 427--1 429 MHz band.

+-----------------------+-----------------------+-----------------------+
| **22-24.75 GHz**      |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Allocation to       |                       |                       |
| services**            |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Region 1**          | **Region 2**          | **Region 3**          |
+-----------------------+-----------------------+-----------------------+
| **....**              |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **22.55-23.55** FIXED |                       |                       |
|                       |                       |                       |
| INTER-SATELLITE       |                       |                       |
|                       |                       |                       |
| MOBILE                |                       |                       |
|                       |                       |                       |
| 5.149                 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **23.55-23.6** FIXED  |                       |                       |
|                       |                       |                       |
| MOBILE                |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **23.6-24** EARTH     |                       |                       |
| EXPLORATION-SATELLITE |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| RADIO ASTRONOMY       |                       |                       |
|                       |                       |                       |
| SPACE RESEARCH        |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| 5.340                 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **....**              |                       |                       |
+-----------------------+-----------------------+-----------------------+

**USA/ /5 [NOC]{.underline}**

No change to Radio Regulations regarding the inter-satellite service
allocation in the band 22.55--23.55 GHz.

**Reasons:** Results of studies documented in Recommendation ITU--R
SM.1633 show that unwanted emissions from the ISS in the 22.55--23.55
GHz band are well below the recommended protection criteria for the EESS
(passive) in the 23.6--24.0 GHz band. Therefore, no changes are needed
to the Radio Regulations to protect the EESS (passive) in the 23.6--24.0
GHz band from unwanted emissions from the ISS in the 22.55--23.55 GHz
band.

**USA/ /6 MOD**

+-----------------------+-----------------------+-----------------------+
| **29.9-34.2 GHz**     |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Allocation to       |                       |                       |
| services**            |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Region 1**          | **Region 2**          | **Region 3**          |
+-----------------------+-----------------------+-----------------------+
| **....**              |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **30-31**             |                       |                       |
| FIXED-SATELLITE       |                       |                       |
| (Earth-to-space)      |                       |                       |
|                       |                       |                       |
| MOBILE-SATELLITE      |                       |                       |
| (Earth-to-space)      |                       |                       |
|                       |                       |                       |
| Standard frequency    |                       |                       |
| and time              |                       |                       |
| signal-satellite      |                       |                       |
| (space-to-Earth)      |                       |                       |
|                       |                       |                       |
| 5.542                 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **31-31.3** FIXED     |                       |                       |
| 5.543A [ADD           |                       |                       |
| 5.CCC]{.underline}    |                       |                       |
|                       |                       |                       |
| MOBILE                |                       |                       |
|                       |                       |                       |
| Standard frequency    |                       |                       |
| and time              |                       |                       |
| signal-satellite      |                       |                       |
| (space-to-Earth)      |                       |                       |
|                       |                       |                       |
| Space research 5.544  |                       |                       |
| 5.545                 |                       |                       |
|                       |                       |                       |
| 5.149                 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **31.3-31.5** EARTH   |                       |                       |
| EXPLORATION-SATELLITE |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| RADIO ASTRONOMY       |                       |                       |
|                       |                       |                       |
| SPACE RESEARCH        |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| 5.340                 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **....**              |                       |                       |
+-----------------------+-----------------------+-----------------------+

**USA/ /7 [NOC]{.underline}**

No change to Radio Regulations regarding the fixed-satellite service
(Earth-to-space) allocation in the band 30-31 GHz.

**Reasons:** Results of studies documented in Recommendation ITU--R
SM.1633 show that unwanted emissions from the FSS in the 30-31 GHz band
do not exceed the recommended protection criteria for the EESS (passive)
in the 31.3-31.5 GHz band. The FSS allocation is separated from the EESS
(passive) allocation by 300 MHz, which greatly reduces the possibility
of FSS unwanted emissions exceeding the protection criteria in the EESS
(passive) band. Unwanted emission limits in the EESS (passive) band are
unnecessary, and could constrain the future development of FSS uplink
transmitters in the 30-31 GHz band.

**USA/ /8** **ADD**

**5.CCC** In order to ensure the protection of the Earth
exploration-satellite (passive) service in the band 31.3--31.5 GHz, the
unwanted emissions power delivered to the antenna of any station in the
fixed service operating in the band 31.0--31.3 GHz shall be limited to
--38 dBW in any 100 MHz reference bandwidth in the band 31.3--31.5 GHz
(see also No. **5.543A**). Fixed service systems in operation at the
date of entry into force of the Final Acts of WRC--07 are not subject to
this limit.

**Reasons:** Studies documented in Recommendation ITU--R SM.1633
indicate that EESS (passive) systems in the 31.3--31.5 GHz band are
protected if unwanted emissions in that band from fixed service
transmitters in the 31.0--31.3 GHz band do not exceed --38 dBW in any
100 MHz reference bandwidth. Measures to ensure that future FS systems
in the 31.0--31.3 GHz band do not exceed this level will not constitute
an undue burden on the fixed service.

**USA/ /9 MOD**

+----------------------+----------------------+-----------------------+
| **40-47.5 GHz**      |                      |                       |
+----------------------+----------------------+-----------------------+
| **Allocation to      |                      |                       |
| services**           |                      |                       |
+----------------------+----------------------+-----------------------+
| **Region 1**         | **Region 2**         | **Region 3**          |
+----------------------+----------------------+-----------------------+
| **....**             |                      |                       |
+----------------------+----------------------+-----------------------+
| **47.2-47.5** FIXED  |                      |                       |
|                      |                      |                       |
| FIXED-SATELLITE      |                      |                       |
| (Earth-to-space)     |                      |                       |
| 5.552 [ADD           |                      |                       |
| 5.DDD]{.underline}   |                      |                       |
|                      |                      |                       |
| MOBILE               |                      |                       |
|                      |                      |                       |
| 5.552A               |                      |                       |
+----------------------+----------------------+-----------------------+

**USA/ /10 ADD**

**5.DDD** In order to ensure the protection of the Earth
exploration-satellite (passive) service in the band 50.2-50.4 GHz, the
unwanted emissions e.i.r.p. of any earth station in the fixed-satellite
service operating in the band 47.2-50.2 GHz in Regions 2 and 3,
49.44-50.2 GHz in Region 1, and 50.4-51.4 GHz in all Regions shall be
limited to 30 dBW in the 200 MHz reference bandwidth of the band
50.2-50.4 GHz. Fixed-satellite service systems in operation at the date
of entry into force of the Final Acts of WRC-07 are not subject to this
limit.

**Reasons:** Results of studies documented in Recommendation ITU--R
SM.1633 show that fixed-satellite service uplink transmitters operating
in bands adjacent to then 50.2-50.4 GHz passive band can cause
significant levels of unwanted emissions in the 50.2-50.4 GHz passive
band.

**USA/ /11 MOD**

+-----------------------+-----------------------+-----------------------+
| **51.4-55.78 GHz**    |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Allocation to       |                       |                       |
| services**            |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Region 1**          | **Region 2**          | **Region 3**          |
+-----------------------+-----------------------+-----------------------+
| **51.4-52.6** FIXED   |                       |                       |
| [ADD                  |                       |                       |
| 5.EEE]{.underline}    |                       |                       |
|                       |                       |                       |
| MOBILE                |                       |                       |
|                       |                       |                       |
| 5.547 5.556           |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **52.6-54.25** EARTH  |                       |                       |
| EXPLORATION-SATELLITE |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| SPACE RESEARCH        |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| 5.340 5.556           |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **....**              |                       |                       |
+-----------------------+-----------------------+-----------------------+

**USA/ /12 ADD**

**5.EEE** In order to ensure the protection of the Earth
exploration-satellite (passive) service in the band 52.6--54.25 GHz, the
unwanted emissions power delivered to the antenna of any station in the
fixed service operating in the band 51.4--52.6 GHz shall be limited to
--33 dBW in any 100 MHz reference bandwidth in the band 52.6--54.25 GHz.
Fixed-service systems in operation at the date of entry into force of
the Final Acts of WRC-07 are not subject to this limit.

**Reasons:** Studies documented in Recommendation ITU--R SM.1633
indicate that EESS (passive) systems in the 52.6--54.25 GHz band are
protected if unwanted emissions in that band from fixed service
transmitters in the 51.4--52.6 GHz band do not exceed --33 dBW in any
100 MHz reference bandwidth. Measures to ensure that future FS systems
in the 51.4--52.6 GHz band do not exceed this level will not constitute
an undue burden on the fixed service.

**USA/ /13 SUP**

RESOLUTION 738 (WRC‑03)

Compatibility analyses between the Earth exploration-satellite\
service (passive) and active services

**Reasons:** Consequential to completion of this agenda item. All of the
actions required under this Resolution will have been completed at
WRC-07 and it may be suppressed. The technical studies will either have
confirmed that the unwanted emissions do not interfere with the EESS
(passive) or appropriate regulatory measures, if necessary, will have
been determined and decided by WRC-07.

**- FCC -**

[^1]: The WRC-07 Advisory Committee was established by the FCC in
    January 2004 to assist the FCC in developing proposals for WRC-07.
    Since its inception, the WRC-07 Advisory Committee has developed and
    submitted recommendations and preliminary views for Commission
    consideration. *See, e.g., The FCC's Advisory Committee for the 2007
    World Radiocommunication Conference Proposes Preliminary Views on
    WRC-07 Issues*, Public Notice, DA 04-1698 (rel. June 14, 2004)
    (Int'l Bur. 2004).

[^2]: These documents are available through the FCC's WRC-07 website at:
    <http://www.fcc.gov/wrc-07>.

[^3]: This ~~is a counter~~ proposal [supercedes]{.underline} ~~to~~ the
    one contained in FCC Public Notice DA 05--1011 as WAC/052(04.04.05).

[^4]: For instance as considered in Annex 2 of Doc. 4A/277 (output from
    the Working Party of the Special Committee, WP-SC, December 2005
    meeting, on WRC-07 Agenda Item 1.10) or as currently contained in
    the procedures of Appendices 30 and 30A of the Radio Regulations.

[^5]: Editorial Note: For the convenience of the reader, the proposal
    presented here includes in most cases text proposed for no change
    (NOC) as well as text proposed for suppression (SUP).

[^6]: If the payments are not received in accordance with the provisions
    of Council Decision 482, as amended, on the implementation of cost
    recovery for satellite network filings, the Bureau shall cancel the
    publication, after informing the administration concerned. The
    Bureau shall inform all administrations of such action and that the
    network specified in the publication in question no longer has to be
    taken into consideration by the Bureau and other administrations.
    The Bureau shall send a reminder to the notifying administration,
    not later than two months prior to the deadline for the payment in
    accordance with Council Decision 482 unless the payment has already
    been received (see also Resolution **87 (WRC‑03)**).     (WRC‑03)

[^7]: The "other provisions" shall be identified and included in the
    Rules of Procedure.

[^8]: If the payments are not received in accordance with the provisions
    of Council Decision 482, as amended, on the implementation of cost
    recovery for satellite network filings, the Bureau shall cancel the
    publication, after informing the administration concerned. The
    Bureau shall inform all administrations of such action and that the
    network specified in the publication in question no longer has to be
    taken into consideration by the Bureau and other administrations.
    The Bureau shall send a reminder to the notifying administration,
    not later than two months prior to the deadline for the payment in
    accordance with Council Decision 482 unless the payment has already
    been received (see also Resolution **87 (WRC‑03)**).

[^9]: The "other provisions" shall be identified and included in the
    Rules of Procedure.

[^10]: The allotments in the Plan, assignments in the List and
    assignments with complete information previously submitted are those
    that had been identified as such at the date of receipt of the
    initial submission under § 6.1 of the assignment under examination,
    i.e. examination under § 6.19 is conducted with respect to the same
    reference situation previously used for the examination under § 6.1.

[^11]: The entry shall be definitive in the case of a frequency
    assignment to a receiving station, under the condition that the
    notifying administration has undertaken that no complaint will be
    made in respect of any harmful interference which may be caused to
    that assignment by the assignment which was the basis for the
    unfavourable finding.

[^12]: ^4^ The "other provisions" shall be identified and included in
    the Rules of Procedure.     (WRC-03)

[^13]: ^5^ The Plan has been prepared with a view to assuring for each
    allotment an aggregate *C */* I* ratio of at least 26 dB.

[^14]: ^9^ ~~For allotments with an aggregate *C*/*I* less than 26 dB
    (WRC‑03 decided that for the examination of submissions received as
    from 5 July 2003 the value 23 dB (instead of 26 dB) shall be
    applied), the calculated *C*/*I* based on the Plan will be used.
    However, if through the use of the PDA Concept, this value is
    improved in the latter application of this procedure, the improved
    value will be used until it reaches 26 dB (WRC‑03 decided that for
    the examination of submissions received as from 5 July 2003 the
    value 23 dB (instead of 26 dB) shall be applied).     (WRC-03)~~

[^15]: ^^ These draft preliminary views and proposals are being
    reviewed by the Informal Working Groups of the Advisory Committee,
    and a number of them have received recommendations for changes as
    set forth in the in the previous section of this public notice.

[^16]: See Document 4 (Add.3) at:
    <http://www.itu.int/md/choice_md.asp?id=R03-WRC03-C-0004!A3!MSW-E&lang=e&type=sitems>

[^17]: SRS-on-CD -- see at:
    <http://www.itu.int/ITU-R/software/space/srscdrom/index.html>

[^18]: ^2^ See footnote 1.

[^19]: This is a counter proposal to the one contained in FCC Public
    Notice DA 05--1011 as WAC/052(04.04.05).