Mr. John Giusti

Acting Chief of the International Bureau

Federal Communications Commission

445 12th Street SW

Washington, D.C. 20554

Dear Mr. Giusti:

The National Telecommunications and Information Administration (NTIA),
on behalf of the Executive Branch Agencies, has approved the release of
an additional draft Executive Branch proposal for WRC-07. This proposal
considers the federal agency inputs toward the development of U.S.
Proposals for WRC-07.

The enclosed draft proposal for Agenda Item 1.6 (**Res. 415**) is a
clean-up item promised by NTIA in the Executive Branch comments to the
FCC FNPRM on Part 87 of the Commission\'s rules concerning the aviation
radio service, WT Docket Number 01-289. NTIA filed comments with the FCC
on September 13, 2004 indicating that the allocation for AMS(R)S under
RR **5.198** can be deleted from the International Radio Regulations,
and consequently from the U.S. allocation table and that NTIA would
undertake to make this proposal during WRC-07 proposal preparation.

This proposal is forwarded for your consideration and review by your
WRC-07 Advisory Committee. Jim Vorhies of my staff is the primary
contact for NTIA.

> Sincerely,
>
> *(Original Signed December 11, 2006)*
>
> Fredrick R. Wentland
>
> Associate Administrator
>
> Office of Spectrum Management

Enclosure

**United States of America**

## DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE [^1]

**Agenda Item 1.6 (Res. 415)**: to consider additional allocations for
the aeronautical mobile (R) service in parts of the bands between
108 MHz and 6 GHz, in accordance with Resolution **414 (WRC‑03)** and,
to study current satellite frequency allocations, that will support the
modernization of civil aviation telecommunication systems, taking into
account Resolution **415 (WRC‑03)**

**Background Information:** This proposal considers the suppression of
the secondary allocation to the aeronautical mobile-satellite (R)
service (AMS(R)S) in the 117.975 -- 136 MHz band.

Existing aeronautical mobile (R) service bands are nearing saturation in
high traffic areas. In addition, new applications and concepts in air
traffic management put further pressure on existing aeronautical mobile
bands. In particular, the 117.975 - 136 MHz band is extremely congested
due to increased aeronautical mobile use in the band. For the
aforementioned reasons, and since there are no operational or planned
AMS(R)S systems in this band, the secondary allocation to AMS(R)S in RR
No. **5.198** should be suppressed.

**Proposal:**

USA/ / 1 MOD

75.2-137.175 MHz

+----------------------+----------------------+-----------------------+
| Allocation to        |                      |                       |
| services             |                      |                       |
+----------------------+----------------------+-----------------------+
| Region 1             | Region 2             | Region 3              |
+----------------------+----------------------+-----------------------+
| \....                |                      |                       |
+----------------------+----------------------+-----------------------+
| **117.975-137**      |                      |                       |
| AERONAUTICAL MOBILE  |                      |                       |
| (R)                  |                      |                       |
|                      |                      |                       |
| 5.111 **SUP** 5.199  |                      |                       |
| 5.200 5.201 5.202    |                      |                       |
| 5.203 5.203A 5.203B  |                      |                       |
+----------------------+----------------------+-----------------------+
| \....                |                      |                       |
+----------------------+----------------------+-----------------------+

Reasons: The modification of the table is due to the suppression of
5.198.

USA/ / 2 SUP

**5.198** *Additional allocation:  *the band 117.975-136 MHz is also
allocated to the aeronautical mobile-satellite (R) service on a
secondary basis, subject to agreement obtained under
No. **9.21**.     (WRC-97)

**Reason:** The secondary allocation by footnote to AMS(R)S is no longer
needed.

[^1]: This proposal is an additional proposal to previous proposals made
    under this agenda item.