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ITU-R R23-WP5B Meeting Documents
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[ 435 ]  2025-11-27 Chair, WP 5B   Report on the thirty-fifth meeting of Working Party 5B (Geneva, 18-27 November 2025)     N/A  
  [ 435 ]  - English -  Word 2025-12-19 [14:54]  84'374  bytes Report on the thirty-fifth meeting of Working Party 5B - (Geneva, 18 - 27 November 2025)  
  [ 435 ] Chapter 5 - English -  Word 2025-12-19 [12:31]  139'707  bytes Summary of documents addressed  
  [ 435 ] Chapter 4 - English -  Word 2025-12-19 [11:39]  52'305  bytes Meeting Report of the Ad-hoc Plenary on protection criteria  
  [ 435 ] Chapter 4 - Annex 4.1 - English -  Word 2025-12-19 [10:48]  135'434  bytes Preliminary draft revision of Recommendation ITU-R M.1638-1 - Characteristics of and [protection criteria] for sharing studies for radiolocation (except ground based meteorological radars) and aeronautical radionavigation radars operating in the frequency bands between 5 250 and 5 850 MHz  
  [ 435 ] Chapter 4 - Annex 4.2 - English -  Word 2025-12-18 [16:13]  34'156  bytes Preliminary draft new Recommendation ITU-R M.[AMS CHARACTERISTICS_1 780-1 850 MHZ] - Technical characteristics and protection criteria for systems operating in the aeronautical mobile service within the frequency range 1 780-1 850 MHz  
  [ 435 ] Chapter 3 - Annex 3.5 - English -  Word 2025-12-18 [15:37]  41'484  bytes Preliminary draft revision of Recommendation ITU-R M.1080 - Digital selective calling system enhancement for multiple equipment installations  
  [ 435 ] Chapter 3 - Annex 3.9 - English -  Word 2025-12-18 [14:11]  54'902  bytes Working document towards a revision of Recommendation ITU-R M.489-2 - Technical characteristics of VHF radiotelephone equipment operating in the maritime mobile service in channels spaced by 25 kHz  
  [ 435 ] Chapter 3 - English -  Word 2025-12-18 [11:48]  66'673  bytes Meeting Report of Working Group 5B-3 - Maritime  
  [ 435 ] Chapter 3 - Annex 3.8 - English -  Word 2025-12-18 [11:00]  46'395  bytes Working document toward preliminary draft new Recommendation ITU-R M.[DIGITAL-VOICE] - Digital voice communication in the VHF maritime mobile band  
  [ 435 ] Chapter 3 - Annex 3.4 - English -  Word 2025-12-18 [10:48]  743'292  bytes Working document towards a preliminary draft revision of Recommendation ITU-R M.628-5 - Technical characteristics for search and rescue radar transponders  
  [ 435 ] Chapter 3 - Annex 3.10 - English -  Word 2025-12-18 [10:46]  197'323  bytes Working document towards a preliminary draft revision of Recommendation ITU-R M.2135-1 - Technical and operational characteristics of autonomous maritime radio devices operating in the frequency band 156-162.05 MHz  
  [ 435 ] Chapter 2 - English -  Word 2025-12-18 [10:43]  78'645  bytes Meeting Report of Working Party 5B-2 - Aeronautical  
  [ 435 ] Chapter 3 - Annex 3.1 - English -  Word 2025-12-18 [10:28]  1'017'143  bytes Preliminary draft new Report ITU-R M[VDES R-MODE] - Impact of the possible introduction of a range mode on the VHF data exchange system  
  [ 435 ] Chapter 3 - Annex 3.3 - English -  Word 2025-12-18 [10:28]  1'251'490  bytes Working document towards a preliminary draft revision of Recommendation ITU-R M.541-11 - Operational procedures for the use of digital selective calling equipment in the maritime mobile service  
  [ 435 ] Chapter 3 - Annex 3.7 - English -  Word 2025-12-18 [10:17]  649'971  bytes Working document towards a preliminary draft revision of Report ITU-R M.2027 ? Engineering guidance for operators to upgrade shore based facilities to operate the Global Maritime Distress and Safety System in the A1, A2 and A3/A4 sea areas  
  [ 435 ] Chapter 3 - Annex 3.6 - English -  Word 2025-12-18 [10:04]  613'526  bytes Working document towards a preliminary draft revision of Report ITU-R M.2231-1 ? Use of Appendix 18 to the Radio Regulations for the maritime mobile service  
  [ 435 ] Chapter 1 - Annex 1.2 - English -  Word 2025-12-17 [17:05]  4'454'396  bytes Working document towards a preliminary draft revision of Recommendation ITU-R M.1849-3 - Technical and operational aspects of ground-based meteorological radars  
  [ 435 ] Chapter 3 - Annex 3.2 - English -  Word 2025-12-17 [17:05]  764'051  bytes Working document towards a preliminary draft new Report ITU-R M.[DIGITAL_VOICE] ? Comparative analysis report of DMR and dPMR for VHF digitization  
  [ 435 ] Chapter 2 - Annex 2.8 - English -  Word 2025-12-17 [16:56]  923'025  bytes Working document towards a preliminary draft new Report ITU-R M.[MODERNIZATION OF HF AM(OR)S] - Technical characteristics, protection criteria, and compatibility and sharing studies for the modernization of high-frequency systems operating in the aeronautical mobile (OR) service within 3.025 to 18.030 MHz  
  [ 435 ] Chapter 1 - Annex 1.8 - English -  Word 2025-12-17 [16:13]  8'028'603  bytes Working document towards a preliminary draft new Report ITU-R M.[RLS_231.5-700GHZ - Frequency bands, technical characteristics, and protection criteria for sharing and compatibility studies in support of possible allocation/identification for the radiolocation service in the frequency range 231.5-700 GHz  
  [ 435 ] Chapter 1 - English -  Word 2025-12-17 [15:56]  51'069  bytes Meeting Report of Working Group 5B-1 - Radiodetermination  
  [ 435 ] Chapter 2 - Annex 2.6 - English -  Word 2025-12-17 [15:51]  224'682  bytes Preliminary draft new Recommendation ITU-R M.[AM(R)S_AMS(R)S_CHAR_5GHZ] ? Characteristics and protection criteria of terrestrial and satellite unmanned aircraft system control and non-payload communications links operating in the aeronautical mobile (route) service and aeronautical mobile satellite (R) Service in the band 5 030-5 091 MHz  
  [ 435 ] Chapter 2 - Annex 2.7 - English -  Word 2025-12-17 [15:50]  66'959  bytes Working document towards a draft CPM Report to WRC-27 on agenda item 1.9  
  [ 435 ] Chapter 2 - Annex 2.5 - English -  Word 2025-12-17 [15:41]  802'099  bytes Working document towards a [preliminary draft new Report ITU-R M.[ITU-R M.2059 COMPARISON]] / Working document with elements [in view of a possible new Report] on radio altimeter measurements compared to ITU-R documentation ? Comparison of Recommendation ITU-R M.2059 with measured radio altimeter data  
  [ 435 ] Chapter 2 - Annex 2.4 - English -  Word 2025-12-17 [15:17]  88'533  bytes Working document towards a preliminary draft revision of Recommendation ITU-R M.2085-01 ? Technical conditions for the use of wireless avionics intra-communication systems operating in the aeronautical mobile (R) service in the frequency band 4 200-4 400 MHz  
  [ 435 ] Chapter 2 - Annex 2.1 - English -  Word 2025-12-17 [15:08]  51'541  bytes Working document towards a preliminary draft new Recommendation ITU-R M.[ARNS-AM(R)S-AMS(R)S 960-1215 MHZ] - Characteristics and protection criteria for the aviation systems operating in the aeronautical radionavigation service, the aeronautical mobile (route) service, and the aeronautical mobile satellite (route) service in the frequency band 960-1 215 MHz  
  [ 435 ] Chapter 2 - Annex 2.3 - English -  Word 2025-12-17 [15:00]  42'563  bytes Working document towards a preliminary draft revision of Recommendation ITU-R M.2116-0 ? Technical and operational characteristics and protection criteria for systems operating in the aeronautical and maritime mobile services within the 4 400-4 990 MHz frequency range  
  [ 435 ] Chapter 2 - Annex 2.2 - English -  Word 2025-12-17 [14:57]  42'471  bytes Working document towards preliminary draft revision of Recommendation ITU-R M.2089-0 ? Technical characteristics and protection criteria for aeronautical mobile service systems in the frequency range 14.5-15.35 GHz  
  [ 435 ] Chapter 1 - Annex 1.6 - English -  Word 2025-12-17 [14:53]  123'986  bytes Working document towards a preliminary draft new Recommendation ITU-R M.[15.4-15.7_GHZ_ARNS] ? Characteristics of and protection criteria for [airborne] detect and avoid radars and aircraft landing systems operating in the aeronautical radionavigation service in the frequency band 15.4-15.7 GHz  
  [ 435 ] Chapter 1 - Annex 1.13 - English -  Word 2025-12-17 [14:49]  97'082  bytes Working document towards a preliminary draft new Report ITU-R M.[PULSED INTERFERENCES] - Studies on the radar protection criteria for the pulsed interferences  
  [ 435 ] Chapter 1 - Annex 1.12 - English -  Word 2025-12-17 [14:36]  37'032  bytes Working document towards a preliminary draft revision of Recommendation ITU-R M.1461-2 - Procedures for determining the potential for interference between radars operating in the radiodetermination service and systems in other services  
  [ 435 ] Chapter 1 - Annex 1.11 - English -  Word 2025-12-17 [14:31]  109'104  bytes Working document toward a preliminary draft revision of Recommendation ITU-R M.1644 - Technical and operational characteristics, and criteria for protecting the mission of radars in the radiolocation and radionavigation service operating in the frequency band 13.75-14 GHz  
  [ 435 ] Chapter 1 - Annex 1.10 - English -  Word 2025-12-17 [14:14]  55'477  bytes Working document towards a preliminary draft new Recommendation ITU-R M.[RLS_FREQ_ABOVE_252 GHZ] - Technical and operational characteristics of the Radiolocation Service (RLS) systems, and related applications in the frequency ranges 252-275 and 275-700 GHz  
  [ 435 ] Chapter 1 - Annex 1.9 - English -  Word 2025-12-17 [14:12]  46'076  bytes Draft CPM text on agenda item 1.8  
  [ 435 ] Chapter 1 - Annex 1.4 - English -  Word 2025-12-17 [14:10]  5'351'657  bytes Working document towards a preliminary draft new Report ITU-R M.[RLS_AMS_ANTENNAS] - Antenna radiation patterns of radiodetermination radar and aeronautical mobile systems  
  [ 435 ] Chapter 1 - Annex 1.3 - English -  Word 2025-12-17 [12:13]  515'871  bytes Working document towards a preliminary draft revised Recommendation ITU-R M.1796-3 - Characteristics of and protection criteria for radars operating in the radiodetermination service in the frequency band 8 500-10 680 MHz  
  [ 435 ] Chapter 1 - Annex 1.1 - English -  Word 2025-12-17 [12:03]  48'682  bytes Working document towards a preliminary draft revision of Recommendation ITU-R M.1462-1 - Characteristics of and protection criteria for radars operating in the radiolocation service in the frequency range 420-450 MHz  
  [ 435 ] Chapter 1 - Annex 1.7 - English -  Word 2025-12-17 [11:24]  59'575  bytes Working document towards a preliminary draft new Recommendation ITU-R M.[24.45-24.65_GHZ_ARNS] - Characteristics of and protection criteria for radars operating in the radionavigation service in the frequency band 24.45-24.65 GHz  
  [ 435 ] Chapter 1 - Annex 1.5 - English -  Word 2025-12-17 [11:07]  2'723'014  bytes Working document towards a Handbook ITU-R M.[HDBK_STATUS.SPECTRUM.RPAS_DAA] - Handbook on status of availability of spectrum for detect-and-avoid radars onboard remotely piloted aircraft  
 
[ 315 ]  2025-05-08 Chair, WP 5B   Report on the thirty-fourth meeting of Working Party 5B (Geneva, 29 April-8 May 2025)     N/A  
  [ 315 ] Chapter 1 Revision 2 - English -  Word 2025-11-24 [13:26]  122'229  bytes Report on the thirty-fourth meeting of Working Party 5B - (Geneva, Switzerland, 29 April - 8 May 2025)  
  [ 315 ] Chapter 4 - Annex 4.2 - Revision 1 - English -  Word 2025-11-14 [10:08]  55'673  bytes Preliminary draft revision of Recommendation ITU-R M.585-9 - Assignment and use of identities in the maritime mobile service  
 
[ 436 ]  2025-12-16 WP 5C   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     N/A  
  [ 436 ]  - English -  Word 2025-12-16 [12:00]  47'316  bytes  
 
[ ADM 62 ]  2025-11-27 Chair, WP 5B   Draft agenda for the Closing Plenary meeting of Working Party 5B - Thursday, 27 November 2025, from 1400 to 1515 hours and from 1545 to 1700 (if needed) (Room Popov, ITU Tower)     N/A  
  [ ADM 62 ] Revision 1 - English -  Word 2025-11-28 [08:23]  38'196  bytes  
 
[ 432 ]  2025-11-13 BR, Study Groups Department   List of documents issued (Documents 5B/315 - 5B/433)     N/A  
  [ 432 ] Revision 1 - English -  Word 2025-11-18 [16:22]  70'103  bytes  
 
[ 434 ]  2025-11-27 Director, BR   List of participants - Working Party 5B (Geneva, 18-27 November 2025)     N/A  
  [ 434 ]  - English -  PDF (acrobat) 2025-11-27 [16:14]  165'632  bytes  
 
[ ADM 61 ]  2025-11-27 Chair, WG 5B-2   Draft Agenda for the 5th meeting of Working Group 5B-2 (Aeronautical) - Thursday, 27 November 2025, 0900-1015 hours (Geneva time) (Physical meeting with remote participation) (Room Popov, ITU Tower)     N/A  
  [ ADM 61 ]  - English -  Word 2025-11-27 [08:05]  38'428  bytes  
 
[ ADM 46 ]  2025-11-11 Chair, WP 5B   Draft schedule for the 35th meeting of Working Party 5B (18-27 November 2025)     N/A  
  [ ADM 46 ] Revision 15 - English -  Word 2025-11-26 [16:47]  66'299  bytes  
 
[ ADM 60 ]  2025-11-26 Chair, WG 5B-1   Draft agenda for the meeting of Working Group 5B-1 (Radiodetermination) - Wednesday, 26 November 2025, from 1545 to 1700 hours (Geneva time) (Room Popov, ITU Tower)     N/A  
  [ ADM 60 ]  - English -  Word 2025-11-26 [12:39]  55'711  bytes  
 
[ ADM 59 ]  2025-11-26 Chair, WG 5B-3   Draft agenda of the Closing Plenary of Working Group 5B-3 (Maritime) - Wednesday, 26 November 2025, 1400-1515 hours (Physical Meeting with remote participation) (Popov, Tower)     N/A  
  [ ADM 59 ]  - English -  Word 2025-11-26 [09:19]  39'413  bytes  
 
[ ADM 58 ]  2025-11-26 Chair, WG 5B-2   Draft agenda for the 4th meeting of Working Group 5B-2 (Aeronautical) - Wednesday, 26 November 2025, 0900-1015 hours (Geneva time) (Physical meeting with remote participation) (Room Popov, ITU Tower)     N/A  
  [ ADM 58 ]  - English -  Word 2025-11-26 [08:21]  37'412  bytes  
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