| Contributions
 [ Source: United States of America ]  | 
| 
 | Number 
 | Title | Source | AI/Question 
 | Date | 
|  | [ 616 ] 
 | Proposed draft reply liaison statement to Working Party 4C - Relevant technical information for sharing studies under WRC-27 agenda Item 1.13 | United States of America |  | 2024-11-05 | 
|  | [ 610 ] 
 | Proposed draft reply liaison statement to Working Party 4C - Relevant technical information for sharing studies under WRC-27 Agenda Item 1.11 | United States of America |  | 2024-11-01 | 
|  | [ 609 ] 
 | Information for proposed joint meeting of Working Parties 5B and 5A - New SSTX weather radar pulse characteristics | United States of America |  | 2024-11-01 | 
|  | [ 608 ] 
 | Proposed draft reply liaison statement to Working Party 7B - Relevant technical information for sharing studies under WRC-27 Agenda Item 1.15 | United States of America |  | 2024-11-01 | 
|  | [ 607 ] 
 | 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 of America |  | 2024-11-01 | 
|  | [ 606 ] 
 | Working document towards 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 |  | 2024-11-01 | 
|  | [ 605 ] 
 | 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 | United States of America |  | 2024-11-01 | 
|  | [ 604 ] 
 | Working document towards a preliminary draft new Recommendation M. [Modernization of HF AM(OR)S] - Frequency bands, technical characteristics, and protection criteria for the modernization of high-frequency spectrum for aeronautical mobile (OR) service within the 2.8 to 18.05 MHz frequency range | United States of America |  | 2024-11-01 | 
|  | [ 603 ] 
 | Working document towards a preliminary draft new Report ITU-R M.[FOD_EESS_SHARE] - Sharing and compatibility studies between foreign object debris detection system and other services in the frequency ranges 92-100 GHz | United States of America |  | 2024-11-01 | 
|  | [ 602 ] 
 | 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 of America |  | 2024-11-01 | 
|  | [ 601 ] 
 | Characteristics of and protection criteria for radars operating in the radionavigation service in the frequency band 24.45-24.65 GHz | United States of America |  | 2024-11-01 | 
|  | [ 600 ] 
 | Characteristics of and protection criteria for radars operating in the aeronautical radionavigation service in the frequency band 15.4-15.7 GHz | United States of America |  | 2024-11-01 | 
|  | [ 599 ] 
 | 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 (R) service in the band 5 030-5 091 MHz | United States of America |  | 2024-11-01 | 
|  | [ 598 ] 
 | Draft reply liaison statement to Working Party 5C - Technical characteristics and protection criteria for WRC-27 agenda item 1.10 | United States of America |  | 2024-11-01 | 
|  | [ 597 ] 
 | 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 of America |  | 2024-11-01 | 
|  | [ 596 ] 
 | Elements Toward a Working Document Toward Preliminary Draft New Recommendation ITU-R M.[DIGITAL-VOICE] Digital voice communications in the VHF maritime mobile band - Digital voice communication in the VHF maritime mobile band | United States of America |  | 2024-11-01 | 
|  | [ 593 ] 
 | Working document towards a preliminary draft revision of Recommendation ITU-R M.2092-1 - Technical characteristics for a VHF data exchange system in the VHF maritime mobile band | United States of America
          	    ,
        	    China (People's Republic of) |  | 2024-11-04 | 
|  | [ 590 ] 
 | Working document towards a preliminary draft revision of Recommendation ITU-R M.2092-1 - Technical characteristics for a VHF data exchange system in the VHF maritime mobile band | United States of America
          	    ,
        	    China (People's Republic of)
          	    ,
        	    Denmark
          	    ,
        	    Germany (Federal Republic of)
          	    ,
        	    International Association of Lighthouse Authorities (IALA)
          	    ,
        	    Korea (Republic of)
          	    ,
        	    Poland (Republic of) |  | 2024-11-01 | 
|  | [ 553 ] 
 | Preliminary draft new Recommendation ITU-R M.[24.45-24.65_GHZ_ARNS] - Characteristics of and protection criteria for radars operating in the aeronautical radionavigation service in the frequency band 24.45-24.65 GHz | United States of America |  | 2024-04-26 | 
|  | [ 552 ] 
 | 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 of America |  | 2024-04-26 | 
|  | [ 551 ] 
 | Preliminary draft new Report ITU-R M.[SPACE-VHF] - Space-based aeronautical VHF communications in the frequency band 117.975-137 MHz | United States of America |  | 2024-04-26 | 
|  | [ 543 ] 
 | 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 |  | 2024-04-26 | 
|  | [ 542 ] 
 | Activities in WP 5B related to WRC-27 agenda item 1.9 preparations | United States of America | AI1.9 | 2024-04-26 | 
|  | [ 541 ] 
 | Draft liaison statement to ITU-R Working Parties 3L, 5C, 6A , 7A - Relevant technical information to support studies under WRC-27 agenda item 1.9 | United States of America | AI1.9 | 2024-04-26 | 
|  | [ 540 ] 
 | 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 of America |  | 2024-04-26 | 
|  | [ 539 ] 
 | 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 of America |  | 2024-04-26 | 
|  | [ 538 ] 
 | 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 of America
          	    ,
        	    China (People's Republic of) |  | 2024-04-26 | 
|  | [ 537 ] 
 | 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 of America |  | 2024-04-26 | 
|  | [ 536 ] 
 | Proposed draft reply liaison statement to Working Party 7C - Relevant technical information for sharing studies under WRC-27 agenda item 1.19 | United States of America | AI1.19 | 2024-04-26 | 
|  | [ 535 ] 
 | Proposed draft reply liaison statement to Working Party 7B - Relevant technical information for sharing studies under WRC-27 agenda item 1.15 | United States of America | AI1.15 | 2024-04-26 | 
|  | [ 534 ] 
 | Proposed draft reply liaison statement to Working Party 4C - Relevant technical information for sharing studies under WRC-27 agenda item 1.13 | United States of America | AI1.13 | 2024-04-26 | 
|  | [ 533 ] 
 | Proposed draft reply liaison statement to Working Party 5D - Relevant technical information for sharing studies under WRC-27 agenda item 1.7 | United States of America | AI1.7 | 2024-04-26 | 
|  | [ 510 ] 
 | 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 | United States of America |  | 2023-06-30 | 
|  | [ 509 ] 
 | 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 |  | 2023-06-30 | 
|  | [ 505 ] 
 | Updates to working document towards a preliminary draft new Report ITU-R [NON-SAFETY AMS CHARACTERISTICS AND SHARING STUDIES] | United States of America |  | 2023-06-29 | 
|  | [ 504 ] 
 | Reply liaison statement to the Coordination Committee for Vocabulary (CCV) - Terminology and associated definitions produced in 2020-2023 during review of in-force ITU-R Recommendations under the remit of WP 5B | United States of America |  | 2023-06-29 | 
|  | [ 503 ] 
 | Preliminary draft revision of recommendation ITU-R M.541-10 | United States of America |  | 2023-06-29 | 
|  | [ 502 ] 
 | Preliminary draft revision of preliminary draft new Report ITU-R M.[DIGITAL-VOICE] - Digital voice communication in the VHF maritime band | United States of America |  | 2023-06-29 | 
|  | [ 501 ] 
 | Working document towards a Handbook on unmanned aircraft detect and avoid systems [HDBK.UAS_DAA] - Handbook on unmanned aircraft detect-and-avoid systems | United States of America |  | 2023-06-29 | 
|  | [ 500 ] 
 | Preliminary draft new Recommendation ITU-R M.[24.45-24.65_GHZ_ARNS] - Characteristics of and protection criteria for radars operating in the aeronautical radionavigation service in the frequency band 24.45-24.65 GHz | United States of America |  | 2023-06-29 | 
|  | [ 499 ] 
 | 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 of America |  | 2023-06-29 | 
|  | [ 498 ] 
 | Draft new Recommendation ITU-R M.[AMS CHARACTERISTICS_1 780-1 850 MHZ] | United States of America |  | 2023-06-29 | 
|  | [ 497 ] 
 | Sharing of the frequency band 15.4-15.7 GHz between RLS radars and future non-safety AM(OR)S systems | United States of America |  | 2023-06-29 | 
|  | [ 496 ] 
 | Preliminary draft new Report ITU-R M.[UA_PFD] - Review of power flux-density limits in accordance with resolves 16 of Resolution 155 (Rev.WRC-19) | United States of America |  | 2023-06-29 | 
|  | [ 495 ] 
 | Working document towards a 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 (R) Service in the band 5 030-5 091 MHz | United States of America |  | 2023-06-29 | 
|  | [ 494 ] 
 | Working document towards a preliminary draft new Recommendation ITU-R M.[THZ_SPEC] - Characteristics and Sharing Criteria of Terrestrial Terahertz Spectroscopy/ Radiodetermination Systems for Industry Automation in Shielded Environments (RDI-S) in the band 71-275 GHz | United States of America |  | 2023-06-29 | 
|  | [ 493 ] 
 | Draft new Recommendation ITU-R (RX-BANDWIDTH) | United States of America |  | 2023-06-29 | 
|  | [ 492 ] 
 | Preliminary draft revision of Recommendation ITU-R M.1851-1 - Mathematical models for radiodetermination radar and aeronautical mobile systems antenna patterns for use in interference analyses additional information on cosine on a pedestal | United States of America |  | 2023-06-29 | 
|  | [ 491 ] 
 | Proposed updates to working document towards a preliminary draft new Report ITU-R M.[RADAR SIMULATIONS] - Simulations of performance for specific primary surveillance radars | United States of America |  | 2023-06-29 | 
|  | [ 490 ] 
 | Preliminary draft new Report ITU-R M.[SPACE-VHF] - Space-based aeronautical VHF communications in the frequency band 117.975-137 MHz | United States of America |  | 2023-06-29 | 
| Results:187 total items. Result page: 	
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