Contributions  |
|
Number
|
Title
|
Source
|
AI/Question
|
Date
|
|
[ 855 ]
|
Proposed modifications to working document towards preliminary draft revision of Recommendation ITU-R S.673-2 - Terms and definitions relating to space radiocommunications
|
Kazakhstan
|
|
2026-04-01 |
|
[ 854 ]
|
Reply from the Radiocommunication Bureau to request from Working Party 4A regarding WRC-27 agenda item 7 - Use of No. 11.49
|
Director, BR
|
AI7
|
2026-04-01 |
|
[ 853 ]
|
Reply from the Radiocommunication Bureau to request from Working Party 4A regarding WRC-27 agenda item 7 - Use of No. 4.4
|
Director, BR
|
AI7
|
2026-04-01 |
|
[ 852 ]
|
Proposal regarding Chapter 12 of the ITU-R Handbook on Satellite Communications and Technologies
|
International Organization of Space Communications - INTERSPUTNIK
|
|
2026-03-31 |
|
[ 851 ]
|
Liaison statement to working parties 4A, 4C, 5A, 5B, 5C, 5D, 6A, 7B and 7D regarding progress of work - WRC-27 agenda item 1.17
|
WP 7C
|
AI1.17
|
2026-03-26 |
|
[ 850 ]
|
Liaison statement to ITU-R Working Parties 3J, 4A, 4C, 5A, 5B, 5C, 5D, 7A, 7C and 7D - Progress of activities relating to WRC-27 agenda item 1.15
|
WP 7B
|
AI1.15
|
2026-03-26 |
|
[ 849 ]
|
Reply liaison statement to Working Party 4A on WRC-27 agenda item 1.18 - Technical information to support studies under WRC-27 agenda item 1.18 relating to FSS characteristics in certain frequency bands
|
WP 7D
|
AI1.18
|
2026-03-23 |
|
[ 848 ]
|
Liaison statement to Working Parties 4A, 4C, 5A, 5B and 5C regarding progress of work on WRC-27 agenda item 1.18
|
WP 7C
|
AI1.18
|
2026-03-19 |
|
[ 847 ]
|
Liaison statement to Working Parties 4A, 5A, 5B, 5C and 7B regarding progress of the work on WRC-27 agenda item 1.19
|
WP 7C
|
AI1.19
|
2026-03-19 |
|
[ 846 ]
|
Adoption of draft revision of Recommendation ITU-R S.1528 - Satellite antenna radiation patterns for non-geostationary orbit satellite antennas operating in the fixed-satellite service below 30 GHz
|
Director, BR
|
|
2026-03-13 |
|
[ 845 ]
|
Editorial revision of Annex 8 of Document 4A/830 - Working document towards draft CPM text for WRC-27 agenda item 1.4
|
Chair, WP 4A
|
AI1.4
|
2026-03-06 |
|
[ 844 ]
|
Submissions of Notices related to earth stations in motion
|
Director, BR
|
|
2026-03-02 |
|
[ 843 ]
|
Preliminary position on WRC-27 agenda
|
World Meteorological Organization
|
|
2026-02-18 |
|
[ 842 ]
|
Reply liaison statement to Working Party 4A - Coordination between fixed satellite service (FSS) non-GSO (space-to-Earth) earth stations operating in the frequency band 6 700-7 075 MHz and IMT base stations operating in the frequency band 6 425-7 125 MHz
|
WP 5D
|
|
2026-02-13 |
|
[ 841 ]
|
Draft working document for the Handbook on Satellite Communications and Technologies
|
MEASAT Satellite Systems Sdn. Bhd.
|
|
2026-02-12 |
|
[ 840 ]
|
Further information on the use of the Conference Proposal Interface (CPI) for the preparation of examples of regulatory texts for the draft CPM Report to WRC-27
|
Director, BR
|
|
2026-01-27 |
|
[ 839 ]
|
Reply liaison statement on validation of the term "global satellite services (GSS)"
|
CCT
|
|
2026-01-20 |
|
[ 838 ]
|
Reply liaison statement to ITU-R Working Parties 4A, 4B, 4C, 5A, 5C, 5D and 6A (copy to ITU-T Study Groups 5, 13 and 15) - Validation of the terms "mesh network" and "multiple-input and multiple-output (MIMO)"
|
CCT
|
|
2026-01-20 |
|
[ 837 ]
(Rev.1) |
Liaison statement to Working Party 4A related to the Handbook on Satellite Communications and Technologies
|
WP 5A
|
|
2025-12-18 |
|
[ 836 ]
|
Reply liaison statement to ITU-R Working Party 7B (copy for information to Working Parties 4A, 4C and 5B) - Relevant technical information to support studies under WRC-27 agenda item 1.15
|
WP 5C
|
|
2025-12-16 |
|
[ 835 ]
+Ch.1-17 |
Working document towards a draft new Handbook on Satellite Communications and Technologies
|
Editor, Satellite Communications and Technologies Handbook
|
|
2025-12-10 |
|
[ 834 ]
|
Reply liaison statement to CCT (copy to ITU-T Study Groups 5, 13 and 15 and ITU-R Working Parties 4A, 4B, 4C, 5C, 5D, and 6A for information) - Terminology "multiple-input and multiple-output (MIMO)" and "mesh networks"
|
WP 5A
|
|
2025-12-08 |
|
[ 833 ]
|
Additional contribution from the united nations office for outer space affairs (UNOOSA) to the ITU-R Handbook on best practices for the sustainable use of frequencies and associated non-GSO orbits by space radiocommunication services
|
Director, BR
|
|
2025-11-13 |
|
[ 832 ]
|
Reply liaison statement on work items dealing with cost and economic aspects of satellite internet connectivity
|
ITU-T SG3
|
|
2025-11-12 |
|
[ 831 ]
|
ICAO position for the ITU WRC-27
|
International Civil Aviation Organization
|
|
2025-10-15 |
|
[ 830 ]
+Ann.1-61 |
Report on the fifty-seventh meeting of Working Party 4A (Geneva, 27 October - 6 November 2025)
|
Chair, WP 4A
|
|
2025-11-07 |
|
[ 829 ]
|
Final list of participants - Working Party 4A (Geneva, 27 October - 6 November 2025)
|
Director, BR
|
|
2025-11-07 |
|
[ 828 ]
|
List of documents issued (Documents 4A/567 - 4A/828)
|
BR, Study Groups Department
|
|
2025-11-06 |
|
[ 827 ]
|
Further statistics of space frequency assignments recorded under RR No. 11.41
|
Director, BR
|
|
2025-10-31 |
|
[ 826 ]
|
Liaison statement to Working Party 4A on material for the Handbook on Satellite Communications and Technologies
|
WP 4B
|
|
2025-10-30 |
|
[ 825 ]
|
Further reply from the Radiocommunication Bureau to request from Working Party 4A regarding WRC-27 agenda item 7 - Use of No. 4.4
|
Director, BR
|
AI7
|
2025-10-30 |
|
[ 824 ]
|
Reply liaison statement to Working Party 4A - Comments for sections 5 and 6 regarding MSS and RDSS/RNSS of the draft working document for the Handbook on Satellite Communications and Technologies
|
WP 4C
|
|
2025-10-28 |
|
[ 823 ]
|
Elements and revision of draft working document for the Handbook on Satellite Communications and Technologies
|
Japan
|
|
2025-10-10 |
|
[ 822 ]
|
Possible new rules of procedure on No. 13.6 concerning orbital tolerances for satellite systems not subject to Resolution 8 (WRC-23)
|
Director, BR
|
AI7
|
2025-10-24 |
|
[ 821 ]
|
Reply from the Radiocommunication Bureau to request from Working Party 4A regarding WRC-27 agenda item 7 - Use of No. 4.4
|
Director, BR
|
AI7
|
2025-10-24 |
|
[ 820 ]
|
Reply from the Radiocommunication Bureau to request from Working Party 4A regarding WRC-27 agenda item 1.1
|
Director, BR
|
AI1.1
|
2025-10-24 |
|
[ 819 ]
|
Working document towards a draft new Report [Fixed-satellite service earth station antenna pattern measurements and related analyses]
|
United States
|
|
2025-10-15 |
|
[ 818 ]
|
Liaison statement to Working Party 4A - Coordination between fixed satellite service (FSS) non-GSO (space-to-Earth) earth stations operating in the frequency band 6 700-7 075 MHz and IMT base stations operating in the frequency band 6 425-7 125 MHz
|
WP 5D
|
|
2025-10-17 |
|
[ 817 ]
|
Proposed topic to be considered under WRC-27 agenda item 7 - Capability of a space station to satisfy the requirements for bringing into use of frequency assignments specified in the provisions of Radio Regulations Nos. 11.44B, 11.44C, 11.44D and 11.44E
|
France
|
AI7
|
2025-10-13 |
|
[ 816 ]
|
Proposed topic under WRC-27 agenda item 7 - Possible revision to Resolution 553 (Rev.WRC-23) toward effectively achieving the objective of the resolution for the enhancement of equitable access to the 21.4-22 GHz frequency band
|
Iran (Islamic Republic of)
|
AI7
|
2025-10-15 |
|
[ 815 ]
|
Considerations and proposed updates to working document on WRC-27 agenda item 1.4
|
Iran (Islamic Republic of)
|
AI1.4
|
2025-10-15 |
|
[ 814 ]
|
Revisions for elements for a working document towards draft CPM text for WRC-27 agenda item 1.4
|
Iran (Islamic Republic of)
|
AI1.4
|
2025-10-15 |
|
[ 813 ]
|
Views on proposed topics for WRC-27 agenda item 7
|
Saudi Arabia
,
Bahrain
,
Comoros
,
Djibouti
,
Egypt
,
Iraq
,
Jordan
,
Kuwait
,
Lebanon
,
Libya
,
Mauritania
,
Morocco
,
Oman
,
Qatar
,
Somalia
,
State of Palestine (*)
,
Sudan
,
Syrian Arab Republic
,
Tunisia
,
United Arab Emirates
,
Yemen
|
AI7
|
2025-10-15 |
|
[ 812 ]
|
Proposed topic to be considered under WRC-27 agenda item 7 on RR No. 4.4
|
Saudi Arabia
,
Algeria
,
Bahrain
,
Comoros
,
Djibouti
,
Egypt
,
Iraq
,
Jordan
,
Kuwait
,
Lebanon
,
Libya
,
Mauritania
,
Morocco
,
Oman
,
Qatar
,
Somalia
,
State of Palestine (*)
,
Sudan
,
Syrian Arab Republic
,
Tunisia
,
United Arab Emirates
,
Yemen
|
AI7
|
2025-10-15 |
|
[ 811 ]
|
Proposed topic to be considered under WRC-27 agenda item 7 on the definition of coordination arc for frequency bands above 3.4 GHZ
|
Saudi Arabia
,
Algeria
,
Bahrain
,
Comoros
,
Djibouti
,
Egypt
,
Iraq
,
Jordan
,
Kuwait
,
Lebanon
,
Libya
,
Mauritania
,
Morocco
,
Oman
,
Qatar
,
Somalia
,
State of Palestine (*)
,
Sudan
,
Syrian Arab Republic
,
Tunisia
,
United Arab Emirates
,
Yemen
|
AI7
|
2025-10-15 |
|
[ 810 ]
|
Use of the 13.75-14 GHz band
|
Argentina
,
Colombia
,
Costa Rica
,
Ecuador
,
Guatemala
,
Honduras
,
Mexico
,
Paraguay
,
Uruguay
|
|
2025-10-15 |
|
[ 809 ]
|
Studies for inclusion in the working document on WRC-27 agenda item 1.2 - Update to working document on WRC-27 agenda item 1.2
|
Sweden
|
AI1.2
|
2025-10-15 |
|
[ 808 ]
|
Proposed amendments to the working document towards a preliminary draft Handbook on best practices for the sustainable use of frequencies and associated non-GSO orbits by space radiocommunication services
|
Telesat
|
|
2025-10-15 |
|
[ 807 ]
|
Preliminary observations on the draft rule of procedure under RR No. 13.6
|
United States
|
|
2025-10-15 |
|
[ 806 ]
|
Proposed revisions to working document on WRC-27 agenda item 1.2 Part 5: sharing between the FSS and the SRS
|
United States
|
AI1.2
|
2025-10-15 |
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