# 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)**;

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

**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.

**Proposal**

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‑0~~3~~[7]{.underline})

+----+-----------+-----------+-----------------+--------+-----------+
| ** | **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} |        |           |
+----+-----------+-----------+-----------------+--------+-----------+
|    |           | [6]{.un   | i\) Bandwidth   |        |           |
|    |           | derline}) | overlap, and    |        |           |
|    |           | Bands     |                 |        |           |
|    |           | above     | ii\) any        |        |           |
|    |           | 17.3 GHz, | network in the  |        |           |
|    |           | except    | FSS and any     |        |           |
|    |           | those     | associated      |        |           |
|    |           | defined   | space operation |        |           |
|    |           | in § 3)   | 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  |        |           |
|    |           |           | 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‑0~~3~~[7]{.underline})

+----+-----------+-----------+-----------------+--------+-----------+
| ** | **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. 

**Reasons:** Suppression of this RR provision 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\               | > MOD 5.517\          | 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**.