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37855 octets |
2025-05-07 |
[356] Annex 22- Draft revisions to Chapter 5 and 6 of the Handbook on satellite communications and technologies (Annex 18 to Document 4A/343) |
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44001 octets |
2025-05-07 |
[356] Annex 21- Preliminary draft revision of Report ITU-R M.2305-0 - Consideration of aggregate radio frequency interference event potentials from multiple Earth exploration-satellite service systems on radionavigation-satellite service receivers operating in the 1 215-1 300 MHz frequency band |
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34693 octets |
2025-05-07 |
[356] Annex 20- Preliminary proposal for the suppression of Recommendation ITU-R M.632-3 - Transmission characteristics of a satellite emergency position-indicating radio beacon (satellite EPIRB) system operating through geostationary satellites in the 1.6 GHz band |
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49434 octets |
2025-05-07 |
[356] Annex 19- Draft elements for Working Party 4C Chair's Report - Text from WRC-23 Plenary for the attention of the ITU-R Working Parties that are either responsible for or contributing to studies relevant to items of the WRC-27 agenda or the WRC-31 preliminary agenda |
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35836 octets |
2025-05-07 |
[356] Annex 18- Work plan for the revision of Recommendation ITU-R M.1184-3 |
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176244 octets |
2025-05-08 |
[356] Annex 17- Preliminary draft revision of Recommendation ITU-R M.1184-3 - Technical characteristics of mobile satellite systems in the frequency bands below 3 GHz for use in developing criteria for sharing between the mobile-satellite service (MSS) and other services |
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5036522 octets |
2025-05-15 |
[356] Annex 16- Working document in support of WRC-31 preliminary agenda item 2.9 - Technical characteristics and operational objectives of emerging RNSS systems |
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162268 octets |
2025-05-07 |
[356] Annex 15- Preliminary draft revision to Recommendation ITU-R M.1787-5 - Description of systems and networks in the radionavigation-satellite service (space-to-Earth and space-to-space) and technical characteristics of transmitting space stations operating in the bands 1 164-1 215 MHz, 1 215-1 300 MHz and 1 559-1 610 MHz |
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278526 octets |
2025-05-07 |
[356] Annex 14- Working document towards a preliminary draft new Report ITU-R M.[RES.609] - Potential mitigation methods to ensure the aggregate equivalent power flux-density (epfd) limit on radionavigation-satellite service (RNSS) systems and networks operating in the 1 164-1 215 MHz band, from resolves 1 of Resolution 609 (Rev.WRC-07), is not exceeded |
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37894 octets |
2025-05-07 |
[356] Annex 13- Note from the Chair of Working Party 4C to the Director of the Radiocommunication Bureau |
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39615 octets |
2025-05-07 |
[356] Annex 12- Detailed workplan for WRC-27 agenda item 1.14 |
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37967 octets |
2025-05-07 |
[356] Annex 11- Working document towards a preliminary draft CPM text for WRC-27 agenda item 1.14 |
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5343660 octets |
2025-05-08 |
[356] Annex 10- Working document on sharing and compatibility studies of possible new allocations to the MSS on WRC-27 agenda item 1.14 |
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38420 octets |
2025-05-06 |
[356] Annex 9- Terms of Reference for Working Party 4C Correspondence Group on WRC-27 agenda item 1.13 |
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41205 octets |
2025-05-06 |
[356] Annex 8- Work plan for WRC-27 agenda item 1.13 |
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25713 octets |
2025-05-06 |
[356] Annex 7 - Part 01
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14456822 octets |
2025-05-06 |
[356] Annex 7- Working document on sharing and compatibility studies under WRC-27 agenda item 1.13 |
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1160651 octets |
2025-05-06 |
[356] Annex 6- Working document on the possible description and functionality of MSS systems for direct connectivity between space stations and IMT user equipment |
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38260 octets |
2025-05-06 |
[356] Annex 5- Draft work plan for WRC-27 agenda item 1.12 |
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8459936 octets |
2025-05-06 |
[356] Annex 4- Working document regarding WRC-27 agenda item 1.12 - Studies on low-data-rate non-GSO mobile-satellite systems in the mobile-satellite service |
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39786 octets |
2025-05-06 |
[356] Annex 3- Work plan for WRC-27 agenda item 1.11 |
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1541318 octets |
2025-05-06 |
[356] Annex 2- Working document regarding WRC-27 agenda item 1.11 - Space-to-space links in the frequency bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660 MHz, 1 670-1 675 MHz and 2 483.5-2 500 MHz allocated to the mobile-satellite service (MSS) |
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39786 octets |
2025-05-06 |
[356] Annex 1- Working document towards draft CPM text for WRC-27 agenda item 1.11 |
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117582 octets |
2025-05-15 |
[356] - Report of the thirty-third meeting of Working Party 4C (23 April -2 May 2025) |
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