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ITU-R R23-WP5B C

ITU-R R23-WP5B	Max # of documents displayed/page:
Maritime mobile service including Global Maritime Distress and Safety System (GMDSS); aeronautical mobile service and radiodetermination service

Results:349 total items.

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Contributions
	Number	Title	Source	AI/Question	Date
	[ 49 ]	Preliminary draft new Recommendation ITU-R M.[15.4-15.7_GHz_ARNS] - Characteristics of and protection criteria for radars operating in the aeronautical radionavigation service in the frequency band 15.4-15.7 GHz	United States		2024-04-26
	[ 48 ]	Preliminary draft new Report ITU-R M.[SPACE-VHF] - Space-based aeronautical VHF communications in the frequency band 117.975-137 MHz	United States		2024-04-26
	[ 47 ]	Proposed modification to preliminary draft new Recommendation ITU-R M.[CNPC_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 (route) service in the band 5 030-5 091 MHz	Japan		2024-04-26
	[ 46 ]	Proposal of reply liaison statement to Working Party 7C - Working document towards a preliminary draft new Report ITU-R M.[FOD_EESS_SHARE]	Japan		2024-04-26
	[ 45 ]	Proposals to the operational conditions of AMS in the 4 500-4 800 MHz frequency range to conduct compatibility studies related with WRC-27 agenda item 1.7	Russian Federation	AI1.7	2024-04-26
	[ 44 ]	Proposals for WRC-27 agenda item 1.7 in relation to the frequency band 4 400-4 800 MHz	Russian Federation	AI1.7	2024-04-26
	[ 43 ]	Proposed revision of Recommendation ITU-R M.1851-2 - Mathematical models for radiodetermination radar and aeronautical mobile systems antenna patterns for use in interference analyses	Russian Federation		2024-04-26
	[ 42 ]	Proposed draft liaison statement to Working Parties 3J, 3K and 3M - WRC-27 agenda item 1.8	Russian Federation	AI1.8	2024-04-26
	[ 41 ] +Ann.1-11	Preliminary draft new Report ITU-R M.[NON-SAFETY AM(OR)S CHARACTERISTICS AND SHARING STUDIES] - Various aspects of non-safety aeronautical mobile service systems in the frequency bands 15.4-15.7 GHz and 22-22.21 GHz	France		2024-04-26
	[ 40 ]	Preliminary draft revision to Recommendation ITU-R M.2116-0 - Technical characteristics and protection criteria for the aeronautical mobile service systems operating within the 4 400-4 990 MHz frequency range	United States		2024-04-26
	[ 39 ]	Activities in Working Party 5B related to WRC-27 agenda item 1.9 preparations	United States	AI1.9	2024-04-26
	[ 38 ]	Draft liaison statement to ITU-R Working Parties 3L, 5C, 6A and 7A - Relevant technical information to support studies under WRC-27 agenda item 1.9	United States	AI1.9	2024-04-26
	[ 37 ]	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	United States		2024-04-26
	[ 36 ]	Working document towards a 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	United States		2024-04-26
	[ 35 ]	Preliminary draft revision of Recommendation ITU-R M.1371-5 - Technical characteristics for an automatic identification system using time division multiple access in the VHF maritime mobile frequency band	United States , China		2024-04-26
	[ 34 ]	Working document towards a preliminary draft new Recommendation ITU-R M.[AMRS-VDL] - Characteristics and protection criteria for the International Civil Aviation Organization standardized VHF datalink Mode 2 systems operating in the aeronautical mobile (route) service in the frequency band 136-137 MHz	United States		2024-04-26
	[ 33 ]	Proposed draft reply liaison statement to Working Party 7C - Relevant technical information for sharing studies under WRC-27 agenda item 1.19	United States	AI1.19	2024-04-26
	[ 32 ]	Proposed draft reply liaison statement to Working Party 7B - Relevant technical information for sharing studies under WRC-27 agenda item 1.15	United States	AI1.15	2024-04-26
	[ 31 ]	Proposed draft reply liaison statement to Working Party 4C - Relevant technical information for sharing studies under WRC-27 agenda item 1.13	United States	AI1.13	2024-04-26
	[ 30 ]	Proposed draft reply liaison statement to Working Party 5D - Relevant technical information for sharing studies under WRC-27 agenda item 1.7	United States	AI1.7	2024-04-26
	[ 29 ]	Preliminary draft new Question ITU-R [R-MODE]/5 - Coexistence of VHF data exchange system with a ranging-mode in the VHF data exchange system	France		2024-04-23
	[ 28 ]	Preliminary draft new Question ITU-R [DIGITAL VOICE]/5 - Introduction of Digital Voice Communications in the VHF maritime frequency channels	France		2024-04-23
	[ 27 ]	Liaison statement to Radiocommunication Study Groups and Working Parties (copy for information to ITU-T and ITU-D Study Groups)	Chair, CCV		2024-04-22
	[ 26 ]	Liaison statement to Working Parties 4A and 4C (copy to Working Parties 3J, 3M, 5A, 5B, and 5C for information) - WRC-27 agenda item 1.18	WP 7D	AI1.18	2024-03-28
	[ 25 ]	Liaison statement to Working Parties 4A, 4C and 5A (copy to Working Parties 1B, 3J, 3M, 5B and 5D for information) - WRC-27 agenda item 1.16	WP 7D	AI1.16	2024-03-28
	[ 24 ]	Liaison statement to Working Parties 3J and 3M (copy to Working Parties 1B, 4A, 4C, 5A, 5B, and 5D for information) on WRC-27 agenda items 1.16 and 1.18	WP 7D	AI1.18, AI1.16	2024-03-28
	[ 23 ]	Liaison statement for action to Working Parties 3J, 4A, 4C, 5A, 5B, 5C, 5D, 7A, 7C and 7D, and for information to Working Party 1B - Relevant technical information to support studies under WRC-27 agenda item 1.15	WP 7B	AI1.15	2024-03-27
	[ 22 ]	Liaison statement to Working Party 5D (copy to Working Parties 1B, 3K, 3M, 4A, 4C, 5A, 5B, 5C, 7C and 7D) - WRC-27 agenda item 1.7	WP 7B	AI1.7	2024-03-27
	[ 21 ]	Liaison statement out to key SDOs on the publication of GR THz 001 and GR THz 002	ETSI		2024-03-27
	[ 20 ]	Liaison statement to Working Party 5B (copy to Working Parties 3J, 3K, 3M, 4A, 4C, 5A, 5C and 7D for information) - Information on active and passive sensors in the EESS for WRC-27 agenda item 1.8	WP 7C	AI1.8	2024-03-26
	[ 19 ]	Liaison statement to Working Parties 3L, 3M, 4A, 4C, 5A, 5B, 5C, 5D, 6A, 7B and 7D - Relevant technical information to support studies under WRC-27 agenda item 1.17	WP 7C	AI1.17	2024-03-25
	[ 18 ]	Liaison statement to Working Parties 3M, 4A, 5A, 5B, 5C, 5D, 7A and 7B (copy to ICAO for information) - WRC-27 agenda item 1.19	WP 7C	AI1.19	2024-03-25
	[ 17 ]	Reply liaison statement to Working Party 5D (copy to Working Parties 1B, 3K, 3M, 4A, 4C, 5A, 5B, 5C, 7B and 7D for information) - WRC-27 agenda item 1.7	WP 7C	AI1.7	2024-03-25
	[ 16 ]	Liaison statement to Working Party 5C (copy to Working Parties 4A, 4C, 5A, 5B, 3J and 3M) - Relevant technical information to support studies under WRC-27 agenda item 1.18	WP 7C	AI1.18	2024-03-25
	[ 15 ]	Liaison statement to Working Parties 3J and 3M (copy to Working Parties 4A, 4C, 5A, 5B and 5C) - Propagation aspects related to WRC-27 agenda item 1.18	WP 7C	AI1.18	2024-03-25
	[ 14 ]	Liaison statement to Working Parties 4A, 4C, 5A and 5B (copy to Working Parties 5C, 3J and 3M) - Relevant technical information to support studies under WRC-27 agenda item 1.18	WP 7C	AI1.18	2024-03-25
	[ 13 ]	Liaison statement to Working Party 4A (copy to Working Parties 3M, 4C, 5A, 5B, 5C, 5D, 7B and 7D for information) - WRC-27 agenda item 1.1	WP 7C	AI1.1	2024-03-25
	[ 12 ]	Note to CPM Steering Committee (copy to Working Parties 3M, 4B, 5A, 5B, 5C and 7C) - WRC-27 agenda item 1.4	Acting Chair, WP 6B	AI1.4	2024-03-20
	[ 11 ]	Liaison statement to Working Party 4A (copy to Working Parties 1B, 3M, 4B, 4C, 5A, 5B, 5C, 5D, 7B, 7C and 7D for information) - WRC-27 agenda item 1.6	WP 6A	AI1.6	2024-03-18
	[ 10 ]	Liaison statement to Working Party 5C (copy to Working Parties 1A, 3J, 3M, 4A, 4B, 4C, 5A, 5B, 7C and 7D for information) - WRC-27 agenda item 1.10	WP 6A	AI1.10	2024-03-18
	[ 9 ]	Liaison statement to Working Party 5B (copy to Working Parties 3L, 5C and 7A) - Protection requirements for the HF broadcasting service relative to WRC-27 agenda item 1.9	WP 6A	AI1.9	2024-03-18
	[ 8 ]	Liaison statement to Working Party 4C (copy to Working Parties 3L, 3M, 4A, 4B, 5A, 5B, 5C, 5D, 7B, 7C and 7D) - WRC-27 agenda item 1.13	WP 6A	AI1.13	2024-03-18
	[ 7 ]	Liaison statement to CPM Management Team (copy to Working Parties 3L, 3M, 4A, 4B, 4C, 5A, 5B, 5C, 5D, 7B, 7C and 7D) - WRC-27 agenda item 1.11	WP 6A	AI1.11	2024-03-18
	[ 6 ]	Liaison statement to Working Party 7C (copy to Working Parties 3L, 3M, 4A, 4C, 5A, 5B, 5C, 5D, 7B and 7D) - WRC-27 agenda item 1.17	WP 6A	AI1.17	2024-03-18
	[ 5 ]	Preliminary position on WRC-27 agenda	WMO		2024-03-06
	[ 4 ]	Liaison statement to Working Parties 1B, 3K, 3M, 4A, 4C, 5A, 5B, 5C, 7B, 7C and 7D - Relevant technical information to support studies under WRC-27 agenda item 1.7	WP 5D	AI1.7	2024-02-13
	[ 3 ]	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	Director, BR		2024-01-30
	[ 2 ]	Working Party 5A preparatory work for WRC-27 (copy for information to Working Parties 5B, 5C and 5D)	Chair, WP 5A		2024-01-11
	[ 1 ] (Rev.1)	Documents to be carried over from the 2019-2023 Study Period	WP 5B		2023-12-06
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