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41659 octets |
2026-05-26 |
[1064] Annex 51- Note to the Director, Radiocommunication Bureau regarding orbital tolerances for satellite systems not subject to Resolution 8 (WRC-23) |
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50643 octets |
2026-05-27 |
[1064] Annex 50- Note to the Director, Radiocommunication Bureau - Possible improvements of Recommendation ITU-R S.1503-4 and points for clarification regarding Recommendation ITU-R S.2157 |
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39374 octets |
2026-05-21 |
[1064] Annex 49- Draft work plan for the Handbook on Satellite Communications and Technologies |
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54021 octets |
2026-05-27 |
[1064] Annex 48- Working document towards a draft new Handbook on Satellite Communications and Technologies |
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528437 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 1- Introduction |
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2550293 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 2- International Telecommunication Union (ITU) |
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397252 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 3- Fixed-Satellite Service (FSS) Concept |
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1019566 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 4- Broadcasting-satellite service (BSS) Concept |
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72625 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 5- Mobile-satellite service (MSS) Concept |
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357721 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 6- Radiodetermination-satellite service (RDSS) |
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56464 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 7- Amateur-satellite service |
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9037447 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 8- Regulatory considerations |
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14087289 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 9- Space Segment Subsystems - Design and technology |
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8944138 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 10- Ground Subsystems - Design and technology |
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7988653 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 11- Launch Vehicles |
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786418 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 12- Communication Satellite Link Performance |
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91603 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 13- Communication Satellite Reliability |
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266100 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 14- The Space Environment |
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111418 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 15- Space Debris Mitigation |
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68468 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 16- International Cooperation in Satellite Communications |
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65618 octets |
2026-05-22 |
[1064] Annex 48 - Chapter 17- List of abbreviations (Annex A) and List of references (Annex B) |
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39374 octets |
2026-06-03 |
[1064] Annex 47- Liaison statement to external organization IADC - Inter-agency space debris coordination committee - Activities related to the sustainable use of radio-frequency spectrum and associated satellite-orbit resources used by space services |
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45247 octets |
2026-05-28 |
[1064] Annex 46- Work plan of the Working Group of the Plenary on Resolution ITU-R 74 |
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975065 octets |
2026-05-28 |
[1064] Annex 45- Elements for a working document towards a preliminary draft new Recommendation ITU-R S.[NGSO DEORBITING] - Guidance on safe and efficient deorbit and/or disposal strategies and methodologies for non-GSO space stations/systems involved in radiocommunication services after the end of their life |
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7634357 octets |
2026-05-28 |
[1064] Annex 44- Working document towards a preliminary draft ITU-R Handbook on best practices for the sustainable use of frequencies and associated non-geostationary-satellite orbits by space radiocommunication services |
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2965256 octets |
2026-06-18 |
[1064] Annex 43- Working document toward preliminary draft new Report on FPA/ESA terminal qualification & test requirements |
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3019103 octets |
2026-06-05 |
[1064] Annex 42- Working document toward preliminary draft new Report on FPA/ESA background information |
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235290 octets |
2026-06-03 |
[1064] Annex 41- Working document towards a preliminary draft new Report ITU-R S.[IOS SPEC NEEDS] - Spectrum needs and operational description of in-orbit servicing (IOS) to support their safe operation |
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Word
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231878 octets |
2026-06-03 |
[1064] Annex 40- Elements towards submission of satellite system characteristics as per recommends 4 of Recommendation ITU-R S.1328 - Satellite system characteristics to be considered in frequency sharing analyses within the fixed-satellite service |
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52433 octets |
2026-06-03 |
[1064] Annex 39- Preliminary draft revision of Recommendation ITU-R S.673-2 - Terms and definitions relating to space radiocommunications |
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Word
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141061 octets |
2026-06-04 |
[1064] Annex 38- Working document towards a preliminary 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 |
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Word
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48310 octets |
2026-06-02 |
[1064] Annex 37- Working document towards a preliminary draft new Recommendation ITU-R S.[RESOLUTION 769] - Methodology for evaluating the aggregate unavailability increase and throughput degradation of geostationary satellite networks in the fixed-satellite service from multiple non-geostationary satellite systems in the Q/V frequency bands in the frequency bands covered by Resolution 769 (WRC-19) |
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127278 octets |
2026-06-02 |
[1064] Annex 36- Working document towards preliminary draft new Recommendation ITU-R S.[RES 769 SUP LINKS] - Methodology to validate supplemental link for the protection of geostationary networks from the aggregate interference produced by non-geostationary FSS systems in the Q/V band ranges |
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55731 octets |
2026-05-27 |
[1064] Annex 35- Compilation of elements regarding improvements of Recommendation ITU-R S.2157 |
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924809 octets |
2026-06-02 |
[1064] Annex 34- 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 |
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293816 octets |
2026-06-02 |
[1064] Annex 33- Working document towards a preliminary draft revision of Recommendation ITU-R S.1715 - Guidelines developed in response to the studies requested in Resolution 140 (WRC 03) |
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1216788 octets |
2026-06-02 |
[1064] Annex 32- Working document towards a preliminary draft revision of Recommendation ITU-R S.1526-1 |
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Word
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3904756 octets |
2026-06-01 |
[1064] Annex 31- Working document towards a preliminary draft new Recommendation ITU-R S.[NON-GSO-MODELLING] - Modelling and simulation of non-GSO FSS systems for use in sharing and compatibility studies |
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69007 octets |
2026-06-01 |
[1064] Annex 30- Preliminary draft new Report ITU-R S.[INTERFERENCE-NGSO-NGSO/GSO] - Examples of methodologies to assess interference levels during coordination when non-geostationary FSS satellite systems for frequency ranges between 10.7 and 52.4 GHz are involved |
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42257 octets |
2026-06-01 |
[1064] Annex 29- Detailed work plan for a revision to Recommendation ITU-R S.1503 |
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115135 octets |
2026-06-01 |
[1064] Annex 28- 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
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Word
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83567 octets |
2026-05-29 |
[1064] Annex 27- Working document towards a preliminary draft revision of Recommendation ITU-R S.1428-1 - Reference FSS earth-station radiation patterns for use in interference assessment involving non-GSO satellites in frequency bands between 10.7 GHz and 30 GHz |
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Word
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24027015 octets |
2026-06-03 |
[1064] Annex 26- Supporting material in relation to possible revision of Recommendations ITU-R S.1428 and ITU-R BO.1443, where appropriate and applicable |
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Excel 2007
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27497 octets |
2026-05-27 |
[1064] Annex 25 - Part 1
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Word
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10563285 octets |
2026-05-27 |
[1064] Annex 25- Working document towards a preliminary draft revision of Recommendation ITU-R S.1503 - Functional description to be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite service systems or networks with limits contained in RR Article 22 of the Radio Regulations |
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3153561 octets |
2026-05-29 |
[1064] Annex 24- Working document towards a preliminary draft revision of Recommendation ITU-R S.1325 - Simulation methodologies for determining statistics of short-term interference between co frequency, codirectional non-geostationary-satellite orbit
fixed-satellite service systems in circular orbits and other non-geostationary fixed satellite service systems in circular orbits or geostationary-satellite orbit fixed satellite service networks |
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Word
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40507 octets |
2026-05-29 |
[1064] Annex 23- 1ST Consultation Meeting draft Terms of Reference - Text elements for the Chair's Report on the development of Terms of Reference for the first Consultation Meeting as required under Resolution 76 (Rev.WRC-23) |
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86869 octets |
2026-05-29 |
[1064] Annex 22- Stage 2 process (Resolution 76 (Rev.WRC-23)) - Text elements for the Chair's Report on the development of the Stage 2 process (Detailed analysis prior to consultation meeting based on operational parameters) as required under Resolution 76 (Rev.WRC-23) |
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Word
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90354 octets |
2026-05-28 |
[1064] Annex 21- Stage 1 process (Resolution 76 (Rev.WRC-23)) - Text elements for the Chair's Report on the development of the Stage 1 Process (Consultation Meeting Trigger) as required under Resolution 76 (Rev.WRC-23) |
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10454069 octets |
2026-05-28 |
[1064] Annex 20 - Part 6- Annex 6 - Measurement campaign of interference to GSO earth stations from non-GSO systems |
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6585213 octets |
2026-05-28 |
[1064] Annex 20 - Part 5- Annex 5 |
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188224 octets |
2026-05-28 |
[1064] Annex 20 - Part 4- Annex 4 - Questions to be answered to complete technical studies on epfd limits in RR Article 22 |
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3934863 octets |
2026-05-28 |
[1064] Annex 20 - Part 3- Annex 3 - Overview of the epfd limits in RR Article 22 |
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19101993 octets |
2026-05-28 |
[1064] Annex 20 - Part 2- Annex 2 - Overview of studies |
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1956160 octets |
2026-05-28 |
[1064] Annex 20 - Part 1- Annex 1 - Comparison between satellite parameters retained to conduct technical studies on the epfd limits in Article 22 in 1997-2000 and current state of the art
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343521 octets |
2026-05-28 |
[1064] Annex 20- Technical studies in response to WRC-23 minutes on Article 22 epfd limits |
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308694 octets |
2026-06-12 |
[1064] Annex 19- Working document towards draft CPM text for WRC-27 agenda item 7, Topic E - Potential regulatory improvements related to the application of RR No. 4.4 to stations of space services
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400350 octets |
2026-06-05 |
[1064] Annex 18- Working document towards draft CPM text for WRC-27 agenda item 7, Topic D - Revision of Resolution 553 (Rev.WRC-23) |
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Word
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101047 octets |
2026-06-05 |
[1064] Annex 17- Working document towards draft CPM Text for WRC-27 agenda item 7, Topic C - Revision of Resolution 170 (Rev.WRC-23) |
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76206 octets |
2026-06-05 |
[1064] Annex 16- Working document towards draft CPM text for WRC-27 agenda item 7, Topic B - New coordination arc |
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68344 octets |
2026-06-05 |
[1064] Annex 15- Working document towards draft CPM text for WRC-27 agenda item 7, Topic A - Proposed modifications to Appendix 4 |
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139667 octets |
2026-06-18 |
[1064] Annex 14- Working document towards draft CPM text on WRC-27 agenda item 1.6 |
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51169 octets |
2026-05-22 |
[1064] Annex 13- Three examples submitted to ITU-R on how to identify and deactivate unauthorized FSS and MSS uplink transmissions from earth stations/terminals |
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188848 octets |
2026-05-28 |
[1064] Annex 12- Document relating to draft CPM text for WRC-27 agenda item 1.5 |
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41542 octets |
2026-06-03 |
[1064] Annex 11- Draft work plan for WRC-27 agenda item 1.4 |
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3100033 octets |
2026-05-22 |
[1064] Annex 10- Working document on WRC-27 agenda item 1.4 |
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289304 octets |
2026-06-17 |
[1064] Annex 9- Working document towards draft CPM Text for WRC-27 agenda item 1.4 |
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Word
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14807375 octets |
2026-05-28 |
[1064] Annex 8- Working document relating to WRC-27 agenda item 1.3 - Studies relating to the use of the frequency band 51.4-52.4 GHz to enable its use by gateway earth stations transmitting to non-geostationary-satellite orbit systems in the fixed-satellite service (Earth-to-space) |
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124866 octets |
2026-06-16 |
[1064] Annex 7- Revisions to working document towards draft CPM text for WRC-27 agenda item 1.3 |
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4245842 octets |
2026-06-04 |
[1064] Annex 6- Working document on WRC-27 agenda item 1.2 - Operational and technical limitations for FSS earth stations in the frequency band 13.75-14 GHz (Earth-to-space) |
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16169698 octets |
2026-06-04 |
[1064] Annex 6 - Annex 1- Working document on WRC-27 agenda item 1.2 - Operational and technical limitations for FSS earth stations in the frequency band 13.75-14 GHz (Earth-to-space) |
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60295082 octets |
2026-06-04 |
[1064] Annex 6 - Annex 2- Working document on WRC-27 agenda item 1.2 - Operational and technical limitations for FSS earth stations in the frequency band 13.75-14 GHz (Earth-to-space) |
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6313469 octets |
2026-06-04 |
[1064] Annex 6 - Annex 3- Working document on WRC-27 agenda item 1.2 - Operational and technical limitations for FSS earth stations in the frequency band 13.75-14 GHz (Earth-to-space) |
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21849669 octets |
2026-06-04 |
[1064] Annex 6 - Annex 4- Working document on WRC-27 agenda item 1.2 - Operational and technical limitations for FSS earth stations in the frequency band 13.75-14 GHz (Earth-to-space) |
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1432058 octets |
2026-06-04 |
[1064] Annex 6 - Annex 5- Working document on WRC-27 agenda item 1.2 - Operational and technical limitations for FSS earth stations in the frequency band 13.75-14 GHz (Earth-to-space) |
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Excel 2007
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37170 octets |
2026-06-04 |
[1064] Annex 6 - Annex 6
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48536 octets |
2026-06-04 |
[1064] Annex 6 - Annex 7- Technical discussions |
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3157455 octets |
2026-06-04 |
[1064] Annex 6 - Annex 8- Question and answers over input studies - May 2026 meeting |
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45157 octets |
2026-06-03 |
[1064] Annex 5- Parameters table for comparison - (WRC-27 agenda item 1.2) |
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380416 octets |
2026-05-22 |
[1064] Annex 4- Working document towards draft CPM text for WRC-27 agenda item 1.2 |
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67146 octets |
2026-06-03 |
[1064] Annex 3- Working document related to a preliminary new Recommendation ITU-R S.[ESIM-NCMC] - The functionalities and implementation of a network control and monitoring centre for earth stations in motion |
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19829261 octets |
2026-06-02 |
[1064] Annex 2- Supporting material for draft CPM text on WRC-27 agenda item 1.1 - Use of frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz (Earth-to-space) by aeronautical and maritime earth stations in motion in the fixed-satellite service |
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123051 octets |
2026-06-16 |
[1064] Annex 1- Working document towards draft CPM Text on WRC-27 agenda item 1.1 - Use of frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz (Earth-to-space) by aeronautical and maritime earth stations in motion in the fixed-satellite service |
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274102 octets |
2026-06-25 |
[1064] - Report on the meeting of Working Party 4A (4-14 May 2026) |
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