| Contributions  | 
| 
 | Number 
 | Title | Source | AI/Question 
 | Date | 
|  | [ 145 ] 
 | Comments on the proposals of Working Party 5B to the working document towards the studies on WRC-23 agenda item 1.1 | Russian Federation | AI1.1 | 2021-04-29 | 
|  | [ 144 ] 
 | Characteristics of the aeronautical mobile service and maritime mobile service systems operated in the frequency band 4 800-4 990 MHz | Russian Federation |  | 2021-04-29 | 
|  | [ 143 ] 
 | Proposed additions to working document towards a preliminary draft new Report ITU-R M.[SPACE-VHF] | Canada | AI1.7 | 2021-04-29 | 
|  | [ 142 ] 
 | Working document towards a preliminary draft new Report ITU-R M.[FOD 92-100 GHZ] - Technical and operational characteristics of the foreign object debris detection system operating in the frequency range 92-100 GHz | Malaysia |  | 2021-04-26 | 
|  | [ 141 ] 
 | Reply liaison statement to ITU-R Working Party 5B - WRC-23 agenda item 1.7 - Questions on a space-based aeronautical VHF communications system in 117.975-137 MHz frequency band | International Civil Aviation Organization | AI1.7 | 2021-04-22 | 
|  | [ 140 ] 
 | Reply liaison statement to ITU-R Working Party 5B - UAS CNP links in the band 5 030-5 091 MHz | International Civil Aviation Organization |  | 2021-04-22 | 
|  | [ 139 ] 
 | 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 | Comité International Radio Maritime (CIRM) |  | 2021-04-21 | 
|  | [ 138 ] 
 | Preliminary draft revision of Recommendation ITU-R M.585-8 - Assignment and use of identities in the maritime mobile service | Comité International Radio Maritime (CIRM) |  | 2021-04-22 | 
|  | [ 137 ] 
 | Proposed revision to Reccommendation ITU-R M.541-10 - Operational procedures for the use of digital selective-calling equipment in the maritime mobile service | Japan |  | 2021-04-20 | 
|  | [ 136 ] 
 | Preliminary draft revision of Recommendation ITU-R M.585-8 - Assignment and use of identities in the maritime mobile service | Korea (Republic of) |  | 2021-04-20 | 
|  | [ 135 ] 
 | Draft response liaison statement on EMF to ITU-D Study Group 2 and ITU-T Study Group 5 | ATDI |  | 2021-04-07 | 
|  | [ 134 ] 
 | Liaison statement to ITU-R Working Party 5B - Studies on detect and avoid systems for unmanned aircraft | ICAO International Civil Aviation Organisation |  | 2021-03-26 | 
|  | [ 133 ] 
 | Reply liaison statement to ITU-R Working Party 5B (copy for information to Working Party 4A) - Clarification on the draft ICAO position on WRC-23 agenda items 1.15, 1.16 and 1.17 | International Civil Aviation Organization | AI1.17, AI1.16, AI1.15 | 2021-03-15 | 
|  | [ 132 ] 
 | Reply liaison statement to ITU-R Working Party 5B concerning WRC-23 agenda item 9.1, topic a), with a copy to Working Party 7C - Information for studies on WRC-23 agenda item 9.1, topic a) | International Civil Aviation Organization | AI9.1A0 | 2021-03-15 | 
|  | [ 131 ] 
 | Reply liaison statemen to ITU-R Working Party 5B - WRC-23 agenda item 1.8 | International Civil Aviation Organization | AI1.8 | 2021-03-15 | 
|  | [ 130 ] 
 | Simplifying the approval of liaison statements | ATDI |  | 2021-02-22 | 
|  | [ 129 ] 
 | Working document towards a draft revision of Recommendation ITU-R M.2092-0 | Denmark |  | 2020-10-29 | 
|  | [ 128 ] 
 | Working document towards a draft revision of Recommendation ITU-R M.2092-0 | Denmark |  | 2020-10-29 | 
|  | [ 127 ] 
 | WRC-23 AGENDA ITEM 1.1 - Working document towards a preliminary draft new Report ITU-R M.[REGULATORY CONDITIONS 1.1] and draft reply liaison statement to Working Party 5D | France | AI1.1 | 2020-11-02 | 
|  | [ 126 ] 
 | Working document towards preliminary draft revision of Recommendation ITU-R M.2116-0 | France |  | 2020-11-02 | 
|  | [ 125 ] 
 | Proposal relating to WRC-23 agenda item 1.10 on new non-safety aeronautical mobile application | France | AI1.10 | 2020-11-02 | 
|  | [ 124 ] 
 | Working document towards a preliminary draft new Recommendation ITU-R M.[CNPC_CHAR_5GHZ] - Characteristics and Protection Criteria of Unmanned Aircraft System Control and Non-Payload Communications Links operating in the AM(R)S and AMS(R)S allocations under Nos. 5.443C and 5.443D | France |  | 2020-11-02 | 
|  | [ 123 ] 
 | Working document towards a preliminary draft new Recommendation ITU-R M.[RAD 92-100 GHz] - Technical and operational characteristics of radiolocation systems operating in the frequency range 92-100 GHz and radionavigation systems operating in the frequency range 95-100 GHz | France |  | 2020-11-02 | 
|  | [ 122 ] 
 | Working document towards a 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 GH | France |  | 2020-11-02 | 
|  | [ 121 ] 
 | Proposal of technical characteristics relating to WRC-23 agenda item 1.10 on new non-safety aeronautical mobile applications | Germany (Federal Republic of) | AI1.10 | 2020-11-02 | 
|  | [ 120 ] 
 | Provisional work plan of Working Party 5B for WRC-23 agenda item 1.6 | China (People's Republic of) | AI1.6 | 2020-11-02 | 
|  | [ 119 ] 
 | Proposed working document towards a preliminary draft new Report on sharing and compatibility studies in the frequency band 15.4-15.7 GHz for WRC-23 agenda item 1.10 | China (People's Republic of) | AI1.10 | 2020-11-02 | 
|  | [ 118 ] 
 | Proposed revision to working document towards a preliminary draft of Recommendation ITU-R M.2092 - Technical characteristics for a VHF data exchange system in the VHF maritime mobile band | China (People's Republic of) |  | 2020-11-02 | 
|  | [ 117 ] 
 | Working document towards a preliminary draft new Report ITU-R M.[RADAR SIMULATIONS] | France |  | 2020-10-30 | 
|  | [ 116 ] 
 | Development of the working document towards a preliminary draft revision of Recommendation ITU-R M.2092-0 - Technical characteristics for a VHF data exchange system in the VHF maritime mobile band | Canada |  | 2020-11-01 | 
|  | [ 115 ] 
 | Working document towards a preliminary draft new Report IUT-R M.[UA_GROUND_DAA] | France |  | 2020-10-30 | 
|  | [ 114 ] 
 | Working document towards a preliminary draft new Report ITU-R M.[UA_AIRBORNE_DAA] | France |  | 2020-10-30 | 
|  | [ 113 ] 
 | Initial reply to ICAO liaison statement - WRC-23 agenda item 1.8 | France | AI1.8 | 2020-10-30 | 
|  | [ 112 ] 
 | Working document towards a preliminary draft new Report ITU-R M.[UAS CNPC_CHAR] - Characteristics of unmanned aircraft system control and non-payload Earth stations for use with space stations operating in the Fixed Satellite Service | France |  | 2020-10-30 | 
|  | [ 111 ] 
 | Draft Working Party 5B document in preparation of review of Resolution 155 for WRC-23 | France | AI1.8 | 2020-10-30 | 
|  | [ 110 ] 
 | Draft ICAO position for ITU-R WRC-23 | International Civil Aviation Organization (ICAO) |  | 2020-10-30 | 
|  | [ 109 ] 
 | Working document towards a preliminary draft new Report M.[SPACE-VHF] - Space-based aeronautical VHF communications in 117.975-137 MHz frequency band | France
          	    ,
        	    Singapore (Republic of) | A1.7 | 2020-10-30 | 
|  | [ 108 ] 
 | Draft technical Report and CPM text for agenda item 1.6 | France | AI1.6 | 2020-10-30 | 
|  | [ 107 ] 
 | Draft liaison statement to Working Party 5D on Advanced Antenna System (AAS) | France | AI1.2 | 2020-10-30 | 
|  | [ 106 ] 
 | Draft reply liaison statement to Working Party 3L (copied to Working Party 3M for information) - WRC-23 agenda item 1.7 - Propagation considerations of a new aeronautical mobile-satellite (R) service allocation in the frequency band 117.975-137 MHz | France | AI1.7 | 2020-10-30 | 
|  | [ 105 ] 
 | Draft liaison statement to ICAO - WRC-23 agenda item 1.7 - Questions on a space-based aeronautical VHF communications system in 117.975-137 MHz frequency band | France | AI1.7 | 2020-10-30 | 
|  | [ 104 ] 
 | Proposal for the draft CPM Report to WRC-23 on agenda item 1.11 | France | AI1.11 | 2020-10-30 | 
|  | [ 103 ] 
 | Working document on the draft work plan of Working Party 5B for WRC-23 agenda item 1.6 | United States of America | AI1.6 | 2020-10-29 | 
|  | [ 102 ] 
 | WD-PDN Report ITU-R M.[SUBORBITAL STUDIES] - Regulatory, operational, and technical studies of radiocommunications for suborbital vehicles | United States of America |  | 2020-10-29 | 
|  | [ 101 ] 
 | Proposed updates to WD PDN Report ITU-R M.[RADAR SIMULATIONS] - Simulations of performance for specific primary surveillance radars | United States of America |  | 2020-10-29 | 
|  | [ 100 ] 
 | Preliminary draft revision of Recommendation ITU-R M.1796-2 - Characteristics of and protection criteria for terrestrial radars operating in the radiodetermination service in the frequency band 8 500-10 680 MHz | United States of America |  | 2020-10-29 | 
|  | [ 99 ] 
 | Preliminary draft revision of Recommendation ITU-R M.1465-3 - Characteristics of and protection criteria for radars operating in the radiodetermination service in the frequency range 3 100-3 700 MHz | United States of America |  | 2020-10-29 | 
|  | [ 98 ] 
 | Working document towards a preliminary draft revision of Recommendation ITU-R M.1730-1 - Characteristics of and protection criteria for the radiolocation service in the frequency band 15.4 -17.3 GHz | United States of America |  | 2020-10-29 | 
|  | [ 97 ] 
 | Working Party 5B proposed work plan for WRC-23 agenda item 1.10 - Possible non-safety AMS allocation in the 15.4-15.7 GHz band | United States of America | AI1.10 | 2020-10-29 | 
|  | [ 96 ] 
 | Proposed working document for a 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 of America |  | 2020-10-29 | 
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