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ITU-R R23-WP4A Meeting Documents
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Results: 57 total items.
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Number  Date Source Title Questions 
  Number  Posted Size    
 
[ ADM 28 ]  2025-05-03 Chair, WP 4A   Work program for the meeting of Working Party 4A - (Physical meeting with remote participation, 5-16 May 2025)     N/A  
  [ ADM 28 ] Revision 3 - English -  Word 2025-05-05 [16:24]  45'336  bytes  
 
[ ADM 27 ]  2025-05-03 Chair, WP 4A   Working structure of the meeting of Working Party 4A - Structure of Working Groups, Sub-Working Groups, document attribution, proposed WG and SWG Chairs     N/A  
  [ ADM 27 ] Revision 2 - English -  Word 2025-05-05 [11:48]  53'882  bytes  
 
[ ADM 26 ]  2025-05-03 Chair, WP 4A   Agenda for the opening Plenary meeting of Working Party 4A - Monday, 5 May 2025 from 0930 to 1230 hours (Shanghai time) (Physical meeting with remote participation) (Room A)     N/A  
  [ ADM 26 ] Revision 1 - English -  Word 2025-05-05 [02:28]  37'473  bytes  
 
[ 544 ]  2025-04-23 Angola , Botswana , Kenya , Mauritius , Niger , Rwanda , South Africa , South Sudan , Tanzania , Zimbabwe   Reply to comments from CEPT     AI1.6  
  [ 544 ]  - English -  Word 2025-04-28 [12:10]  64'104  bytes  
 
[ 558 ]  2025-05-03 WP 4C   Liaison statement to Working Party 4A (copy to Working Party 1B for information) - WRC-27 agenda item 1.5     AI1.5  
  [ 558 ]  - English -  Word 2025-05-04 [03:18]  38'412  bytes  
 
[ 559 ]  2025-05-03 WP 4C   Liaison statement to Working Party 4A (copy to Study Group 4 and Working Party 4B) - Handbook on Satellite Communications     N/A  
  [ 559 ] Part 1 - English -  Word 2025-05-04 [03:42]  42'786  bytes  
  [ 559 ]  - English -  Word 2025-05-04 [03:42]  75'367  bytes  
 
[ 557 ]  2025-05-01 ITU-T SG3   Liaison statement on the provisional approval of a new work item on cost models for provisioning satellite internet connectivity services     N/A  
  [ 557 ] Part 1 - English -  Word 2025-05-02 [09:43]  49'027  bytes  
  [ 557 ]  - English -  Word 2025-05-02 [09:42]  81'561  bytes  
 
[ 443 ]  2025-04-22 China   Working document towards a preliminary draft revision of Recommendation ITU-R S.1529 - Analytical method for determining the statistics of interference between non geostationary satellite orbit fixed-satellite service systems and other non-geostationary satellite orbit fixed satellite service systems or geostationary satellite orbit fixed satellite service networks     N/A  
  [ 443 ]  - English -  Word 2025-04-24 [11:57]  321'604  bytes  
 
[ 511 ]  2025-04-23 United States   Potential WRC-27 agenda item 7 topic regarding Resolution 40, repeated BIU/BBIU, satellite hopping and capabilities defined in No. 11.44B     AI7  
  [ 511 ]  - English -  Word 2025-04-25 [17:17]  39'806  bytes  
 
[ 510 ]  2025-04-23 United States   Potential WRC-27 agenda item 7 topic on measures to address possible impact from R2 FSS operations to the AP30/30A Regions 1 and 3 BSS     AI7  
  [ 510 ]  - English -  Word 2025-04-25 [17:07]  35'800  bytes  
 
[ 553 ]  2025-04-25 Director, BR   Information concerning Document 4A/241     N/A  
  [ 553 ]  - English -  Word 2025-04-29 [05:07]  17'893'746  bytes  
  [ 553 ] Part 02 - English -  Excel 2007 2025-04-28 [15:05]  116'898  bytes  
  [ 553 ] Part 01 - English -  PDF (acrobat) 2025-04-28 [15:01]  22'541'954  bytes  
 
[ 383 ]  2025-04-11 Japan   Working document towards a preliminary draft revision of Recommendation ITU-R BO.1443-3 - Reference BSS earth station antenna patterns for use in interference assessment involving non-GSO satellites in frequency bands covered by RR Appendix 30     Q280/4  
  [ 383 ]  - English -  Word 2025-04-15 [16:58]  36'306  bytes  
 
[ 382 ]  2025-04-11 Japan   Working document towards a preliminary draft revision of Recommendation ITU-R BO.1900 - Reference receive earth station antenna pattern for the broadcasting-satellite service in the band 21.4-22 GHz in Regions 1 and 3     Q280/4  
  [ 382 ]  - English -  Word 2025-04-15 [16:37]  57'786  bytes  
 
[ 444 ]  2025-04-22 Galaxy Space (Beijing) Communication Technology Co., Ltd   Impact of low interference (I/N < -20 dB) on BER in a gaussian noise-limited satellite link     N/A  
  [ 444 ]  - English -  Word 2025-04-24 [11:21]  54'293  bytes  
 
[ 442 ]  2025-04-22 Galaxy Space (Beijing) Communication Technology Co., Ltd   Top-N highest elevation random selection strategy     N/A  
  [ 442 ]  - English -  Word 2025-04-24 [11:02]  69'484  bytes  
 
[ 554 ]  2025-04-25 Director, BR   Information on the use of Radio Regulations No. 4.4 in space services     N/A  
  [ 554 ] Part 1 - English -  Excel 2007 2025-04-28 [14:32]  12'675  bytes  
  [ 554 ]  - English -  Word 2025-04-28 [14:31]  154'517  bytes  
 
[ 556 ]  2025-04-28 Director, BR   WRC-23 actions arising from the report of the Director to WRC-23 and the report of the Radio Regulations board to WRC-23 on Resolution 80 (Rev.WRC-07)     N/A  
  [ 556 ]  - English -  Word 2025-04-28 [13:10]  41'842  bytes  
 
[ 535 ]  2025-04-23 India   Amendments to draft CPM text on WRC-27 agenda item 1.3     AI1.3  
  [ 535 ]  - English -  Word 2025-04-28 [08:01]  43'964  bytes  
 
[ 524 ]  2025-04-23 United States   Proposed revisions to the working document towards a preliminary draft new Recommendation ITU-R S.[INTERFERENCE-INTO-FSS]     N/A  
  [ 524 ]  - English -  Word 2025-04-28 [03:50]  367'252  bytes  
 
[ 555 ]  2025-04-25 Director, BR   Exclusion of a territory of a country from the service area of a satellite network for planned and unplanned bands     N/A  
  [ 555 ] Part 01 - English -  Excel 2007 2025-04-28 [15:09]  14'021  bytes  
  [ 555 ]  - English -  Word 2025-04-28 [15:09]  57'695  bytes  
 
[ 486 ]  2025-04-22 Tonga   Reply liaison statement to Working Parties 7C and 7D on WRC-27 agenda item 1.18 - Updates to system parameters to be used in sharing studies within WRC-27 agenda item 1.18     AI1.18  
  [ 486 ]  - English -  Word 2025-04-25 [12:14]  38'592  bytes  
 
[ 552 ]  2025-04-23 Indonesia   Resolution 76 (Rev.WRC-23) methodologies     N/A  
  [ 552 ]  - English -  Word 2025-04-28 [12:17]  41'319  bytes  
 
[ 551 ]  2025-04-23 Indonesia   Proposed elements of working document towards draft CPM text for WRC-27 agenda item 1.5     AI1.5  
  [ 551 ]  - English -  Word 2025-04-28 [14:06]  42'065  bytes  
 
[ 550 ]  2025-04-23 Chair, WP 4A on behalf of Editor, Space Sustainability Handbook   ITU-R Handbook on best practices for the sustainable use of frequencies and associated non-GSO orbits by space radiocommunication services     N/A  
  [ 550 ]  - English -  Word 2025-04-28 [11:19]  810'018  bytes  
 
[ 445 ]  2025-04-22 Luxembourg , New Zealand   Proposal to streamline the epfd studies of Article 22     N/A  
  [ 445 ]  - English -  Word 2025-04-24 [11:36]  112'263  bytes  
 
[ 450 ]  2025-04-22 Luxembourg   Elements about the derivation of epfd limits in the up and intersatellite directions     N/A  
  [ 450 ]  - English -  Word 2025-04-24 [13:58]  802'025  bytes  
 
[ 472 ]  2025-04-23 Canada   Material for studies on Article 22 epfd limits - Methodology to validate GSO reference links, and application of this methodology to the links provided in response to the Circular Letter CR/116     N/A  
  [ 472 ]  - English -  Word 2025-04-25 [09:00]  263'644  bytes  
 
[ 473 ]  2025-04-23 Canada   Outline of key elements and questions related to the assessment of RR Article 22 epfd limits     N/A  
  [ 473 ]  - English -  Word 2025-04-25 [10:24]  50'416  bytes  
 
[ 488 ]  2025-04-23 Viasat, Inc.   Inconsistency of non-GSO epfd input parameters and impacts related to Recommendation ITU-R S.1503     N/A  
  [ 488 ]  - English -  Word 2025-04-25 [14:46]  353'750  bytes  
 
[ 490 ]  2025-04-23 Viasat, Inc.   Epfd limits in 19.7-20.2 GHz frequency band     N/A  
  [ 490 ]  - English -  Word 2025-04-25 [13:37]  315'913  bytes  
 
[ 491 ]  2025-04-23 Intelsat US LLC   Edits to section 3 of annex 20 of the Chair's Report (history of epfd limits)     N/A  
  [ 491 ]  - English -  Word 2025-04-25 [13:54]  348'632  bytes  
 
[ 494 ]  2025-04-23 Germany   Confidence and sensitivity analyses in epfd examination     N/A  
  [ 494 ]  - English -  Word 2025-04-25 [15:04]  82'798  bytes  
 
[ 516 ]  2025-04-23 United States   Proposed updates to technical studies in response to WRC-23 minutes on Article 22 epfd limits     N/A  
  [ 516 ] Part 1 - English -  Excel 2007 2025-04-28 [06:28]  96'387  bytes  
  [ 516 ]  - English -  Word 2025-04-28 [06:25]  1'121'936  bytes  
 
[ 520 ]  2025-04-23 United States   Study on the impact of additional non-GSO operational considerations on epfd statistics versus those generated using the method in Recommendation ITU-R S.1503     N/A  
  [ 520 ]  - English -  Word 2025-04-28 [05:22]  469'221  bytes  
 
[ 532 ]  2025-04-23 SES   Study of the FSS Ku band epfd limits in Resolution 76 to protect geostationary satellites networks from non-geostationary satellite systems     N/A  
  [ 532 ]  - English -  Word 2025-04-28 [08:55]  368'335  bytes  
 
[ 542 ]  2025-04-23 Space Exploration Technologies Corp. (SpaceX)   Real-world interference measurements in support of studies on epfd limits     N/A  
  [ 542 ]  - English -  Word 2025-04-28 [10:50]  1'217'751  bytes  
 
[ 464 ]  2025-04-22 France   Proposed modifications to "elements towards a working document on/working document towards preliminary draft new ITU-R Report" (Annex 1 to Working Party 4A Chair's Report 4A/343)     AI1.1  
  [ 464 ] Part 1 - English -  Word 2025-04-24 [15:42]  1'232'516  bytes  
  [ 464 ]  - English -  Word 2025-04-24 [15:41]  1'265'796  bytes  
 
[ 430 ]  2025-04-22 China   Preliminary sharing study on FSS ESIMS and GSO EESS (passive) in 50.2-50.4 GHz band (adjacent band) regarding WRC-27 agenda item 1.1     AI1.1  
  [ 430 ]  - English -  Word 2025-04-24 [09:20]  539'922  bytes  
 
[ 478 ]  2025-04-22 European Space Agency (ESA) , European Organisation for the Exploitation of Meteorological Satellite   WRC-27 agenda item 1.1 - Compatibility study between FSS ESIM in the bands 47.2-50.2 GHz and 50.4-51.4 GHz and EESS (passive) sensors in the band 50.2-50.4 GHz     AI1.1, AI1.3  
  [ 478 ]  - English -  Word 2025-04-25 [11:06]  1'853'175  bytes  
 
[ 391 ]  2025-04-16 Croatia , France , Montenegro   Proposed topic to be considered under WRC-27 agenda item 7 - Asymmetrical uplink and downlink service area of RR Appendix 30B network to be entered in the List     AI7  
  [ 391 ]  - English -  Word 2025-04-17 [10:07]  263'949  bytes  
 
[ 487 ]  2025-04-23 Viasat, Inc.   Study on ESIM characteristics     AI1.1  
  [ 487 ]  - English -  Word 2025-04-25 [13:29]  1'766'946  bytes  
 
[ 549 ]  2025-04-24 Director, BR   Issues from report of the Director to WRC-23 relevant to Appendices 30, 30A and 30B of the Radio Regulations     N/A  
  [ 549 ]  - English -  Word 2025-04-28 [11:16]  38'649  bytes  
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