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ITU-R R23-WP4A Meeting Documents
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Results: 71 total items.
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  Number  Posted Size    
 
[ 830 ]  2025-11-07 Chair, WP 4A   Report on the fifty-seventh meeting of Working Party 4A (Geneva, 27 October - 6 November 2025)     N/A  
  [ 830 ] Annex 9 - English -  Word 2025-11-14 [10:56]  2'704'334  bytes Working document on WRC-27 agenda item 1.4  
  [ 830 ] Annex 12 - English -  Word 2025-11-13 [08:46]  41'400  bytes Information on non-GSO FSS and MSS satellite systems as support for WRC-27 agenda item 1.5  
  [ 830 ] Annex 55 - Part 17 - English -  Word 2025-11-12 [10:03]  57'455  bytes Annex A - List of abbrevations and Annex B - List of references  
  [ 830 ] Annex 55 - Part 16 - English -  Word 2025-11-12 [10:02]  62'026  bytes International Cooperation in Satellite Communications  
  [ 830 ] Annex 55 - Part 15 - English -  Word 2025-11-12 [10:02]  106'242  bytes Space Debris Mitigation  
  [ 830 ] Annex 55 - Part 14 - English -  Word 2025-11-12 [10:01]  274'279  bytes The Space Environment  
  [ 830 ] Annex 55 - Part 13 - English -  Word 2025-11-12 [10:01]  58'177  bytes Communication Satellite Reliability  
  [ 830 ] Annex 55 - Part 12 - English -  Word 2025-11-12 [10:00]  779'822  bytes Communication Satellite Link Performance  
  [ 830 ] Annex 55 - Part 11 - English -  Word 2025-11-12 [09:59]  6'012'824  bytes Launch Vehicles  
  [ 830 ] Annex 55 - Part 10 - English -  Word 2025-11-12 [09:58]  8'946'150  bytes Ground Subsystems - Design and technology  
  [ 830 ] Annex 55 - Part 9 - English -  Word 2025-11-12 [09:57]  11'525'081  bytes Space Segment Subsystems - Design and technology  
  [ 830 ] Annex 55 - Part 8 - English -  Word 2025-11-12 [09:57]  9'031'146  bytes Regulatory considerations  
  [ 830 ] Annex 55 - Part 7 - English -  Word 2025-11-12 [09:56]  57'616  bytes Amateur-satellite service  
  [ 830 ] Annex 55 - Part 6 - English -  Word 2025-11-12 [09:55]  1'168'109  bytes Radiodetermination-satellite service (RDSS)  
  [ 830 ] Annex 55 - Part 5 - English -  Word 2025-11-12 [09:54]  66'732  bytes Mobile-satellite service (MSS) Concept  
  [ 830 ] Annex 55 - Part 4 - English -  Word 2025-11-12 [09:54]  972'981  bytes Broadcasting-satellite service (BSS) Concept  
  [ 830 ] Annex 55 - Part 3 - English -  Word 2025-11-12 [09:53]  631'815  bytes Fixed-Satellite Service (FSS) Concept  
  [ 830 ] Annex 55 - Part 2 - English -  Word 2025-11-12 [09:52]  3'593'550  bytes International Telecommunication Union (ITU)  
  [ 830 ] Annex 55 - Part 1 - English -  Word 2025-11-12 [09:51]  64'403  bytes Introduction  
  [ 830 ] Annex 55 - English -  Word 2025-11-12 [09:48]  47'274  bytes Working document towards a draft new Handbook on Satellite Communications and Technologies  
 
[ 833 ]  2025-11-13 Director, BR   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     N/A  
  [ 833 ] Part 1 - English -  PDF (acrobat) 2025-11-13 [11:45]  286'914  bytes  
  [ 833 ]  - English -  Word 2025-11-13 [11:45]  303'460  bytes  
 
[ 832 ]  2025-11-12 ITU-T SG3   Reply liaison statement on work items dealing with cost and economic aspects of satellite internet connectivity     N/A  
  [ 832 ]  - English -  Word 2025-11-12 [10:16]  39'895  bytes  
 
[ 831 ]  2025-10-15 International Civil Aviation Organization   ICAO position for the ITU WRC-27     N/A  
  [ 831 ]  - English -  Word 2025-11-07 [17:04]  141'993  bytes  
 
[ 829 ]  2025-11-07 Director, BR   Final list of participants - Working Party 4A (Geneva, 27 October - 6 November 2025)     N/A  
  [ 829 ]  - English -  PDF (acrobat) 2025-11-07 [07:46]  215'299  bytes  
 
[ ADM 53 ]  2025-11-06 Chair, WP 4A   Agenda for the closing Plenary Meeting of Working Party 4A - Thursday, 6 November, 2025 from 1045 to 1200, 1315-1430, 1445-1600, 1615-1730 hours (Geneva time) (Physical meeting with remote participation) (Room Popov, ITU Tower)     N/A  
  [ ADM 53 ] Revision 3 - English -  Word 2025-11-07 [07:32]  50'527  bytes  
 
[ TD 250 ]  2025-11-06 WG 4A3   WRC-27 agenda item 7 considerations     AI7  
  [ TD 250 ]  - English -  Word 2025-11-06 [14:26]  59'372  bytes  
 
[ TD 251 ]  2025-11-06 WG 4A2   Requests for information from BR     N/A  
  [ TD 251 ]  - English -  Word 2025-11-06 [15:30]  36'273  bytes  
 
[ TD 249 ]  2025-11-06 WG 4A3   Draft note to the Director regarding orbital tolerances for satellite systems not subject to Resolution 8 (WRC-23)     N/A  
  [ TD 249 ]  - English -  Word 2025-11-06 [14:23]  35'799  bytes  
 
[ TD 248 ]  2025-11-06 WG 4A3   Annex xx to Working Party 4A Chair's Report - Working document towards candidate topic under WRC-27 agenda item 7 - Additional measures for the enhancement of equitable access to additional uses in Appendices 30 and 30A in Regions 1 and 3     AI7  
  [ TD 248 ]  - Français -  Word 2025-11-06 [14:33]  66'880  bytes  
 
[ TD 247 ]  2025-11-06 SWG 4A3c   Working document towards candidate topic under WRC-27 agenda item 7 - [Enhancing the responsibility of the] notifying administration of a satellite network and/or system     AI7  
  [ TD 247 ]  - English -  Word 2025-11-06 [14:20]  71'195  bytes  
 
[ TD 246 ]  2025-11-06 SWG 4A3   Working document towards draft CPM text for topic proposed under WRC-27 agenda item 7: Unrealistic gain contours of submissions under RR Appendices 30, 30A and 30B     AI7  
  [ TD 246 ]  - English -  Word 2025-11-06 [14:22]  614'391  bytes  
 
[ TD 245 ]  2025-11-06 SWG 4A3   Working document towards draft CPM text for topic proposed 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     AI7  
  [ TD 245 ]  - English -  Word 2025-11-06 [14:14]  96'695  bytes  
 
[ TD 244 ]  2025-11-06 SWG 4A3c   Working document towards [candidate] topic under WRC-27 agenda item 7 - Possible measures to enhance long-term protection and sustainable development of BSS in the plan band against severe misaligned FSS in other regions     AI7  
  [ TD 244 ] Part 1 - English -  Excel 2007 2025-11-06 [14:18]  74'909  bytes  
  [ TD 244 ]  - English -  Word 2025-11-06 [14:18]  2'647'661  bytes  
 
[ TD 243 ]  2025-11-06 SWG 4A3c   Working document towards candidate topic on WRC-27 agenda item 7 - Inclusion of the territory of a country in the service area of a notified geostationary (GSO) satellite networks in the planned and unplanned BSS frequency bands and in the planned FSS frequency bands subject to Appendices 30A and 30B...     AI7  
  [ TD 243 ]  - English -  Word 2025-11-06 [14:18]  251'542  bytes  
 
[ TD 242 ]  2025-11-06 WG 4A3   Working document towards candidate topic under WRC-27 agenda item 7 - Proposed revision to Resolution 170 (Rev.WRC-23)     N/A  
  [ TD 242 ]  - English -  Word 2025-11-06 [14:22]  60'692  bytes  
 
[ TD 241 ]  2025-11-06 SWG 4A3c   Annex XX to Working Party 4A Chair's Report - Working document towards [candidate] topic under WRC-27 agenda item 7 - Proposed revision to Resolution 553 (Rev.WRC-23)     AI7  
  [ TD 241 ]  - English -  Word 2025-11-06 [14:09]  503'903  bytes  
 
[ TD 240 ]  2025-11-06 WG 4A3   Elements of working document towards candidate topic under WRC-27 agenda item 7     AI7  
  [ TD 240 ]  - English -  Word 2025-11-06 [14:11]  59'735  bytes  
 
[ TD 239 ]  2025-11-06 WG 4A3   Annex XX to Working Party 4A Chair's Report - [Candidate] topic under WRC-27 agenda item 7     AI7  
  [ TD 239 ]  - English -  Word 2025-11-06 [14:08]  63'535  bytes  
 
[ TD 231 ]  2025-11-06 Chair, SWG 4A3c   Working document towards preliminary draft revision of Recommendation ITU-R S.673-2     N/A  
  [ TD 231 ]  - English -  Word 2025-11-06 [13:59]  56'617  bytes  
 
[ TD 238 ]  2025-11-06 SWG 4A3c   Working document towards [candidate] topic under WRC-27 agenda item 7 assessing the review of the existing coordination arc thresholds for frequency bands above [3.4/17.3] GHz     N/A  
  [ TD 238 ]  - English -  Word 2025-11-06 [14:00]  43'386  bytes  
 
[ TD 237 ]  2025-11-06 SWG 4A3c   Working document towards [candidate] topic under WRC-27 agenda item 7 assessing the potential advantage to define coordination arc for some frequency bands above 3.4 GHZ     AI7  
  [ TD 237 ]  - English -  Word 2025-11-06 [14:01]  66'414  bytes  
 
[ TD 236 ]  2025-11-06 Chair, SWG 4A3c   Working document towards candidate topic under WRC-27 agenda item 7 - Recording of frequency assignments in space services under RR No. 11.41     AI7  
  [ TD 236 ]  - English -  Word 2025-11-06 [13:56]  66'589  bytes  
 
[ TD 235 ]  2025-11-06 WG 4A3   Working document towards candidate topic under WRC-27 agenda item 7 regarding measures to restrict the use of the same satellite to BIU frequency assignments of different GSO satellite networks (within 0.5 degrees of longitude of the physical satellite) without moving the satellite ("hop without move")     N/A  
  [ TD 235 ]  - English -  Word 2025-11-06 [14:00]  87'067  bytes  
 
[ TD 234 ]  2025-11-06 WG 4A3   Working document towards candidate topic under WRC-27 agenda item 7 - The use of the same satellite or different satellites to repeatedly bring into use and bring back into use the same frequency assignments of a satellite network or system for a short period of time     AI7  
  [ TD 234 ]  - English -  Word 2025-11-06 [13:50]  666'048  bytes  
 
[ TD 233 ]  2025-11-06 WG 4A3   Working document towards candidate topic under WRC-27 agenda item 7 - potential regulatory improvements related to the application of RR NO. 4.4 to stations of space services     N/A  
  [ TD 233 ]  - English -  Word 2025-11-06 [13:39]  902'645  bytes  
 
[ TD 232 ]  2025-11-06 WG 4A3   [Draft] note to the Director regarding orbital tolerances for satellite systems not subject to Resolution 8 (WRC-23)     N/A  
  [ TD 232 ]  - English -  Word 2025-11-06 [13:29]  32'547  bytes  
 
[ TD 230 ]  2025-11-06 Chair, SWG 4A3c   Revisions to WRC-27 agenda item 7 draft work plan     N/A  
  [ TD 230 ]  - English -  Word 2025-11-06 [13:58]  53'657  bytes  
 
[ TD 229 ]  2025-11-06 WG 4A3   Elements of working document towards draft CPM text on WRC-27 agenda item 1.6     AI1.6  
  [ TD 229 ]  - English -  Word 2025-11-06 [13:31]  82'967  bytes  
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