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Contributions��
�	Number�	Title	Source	AI/Question	Date
�	[ 281 ] � �	List of Documents issued (Documents 7C/186 - 7C/281) � �	BR Study Groups Department �	�	2021-09-16
�	[ 280 ] � �	Liaison statement to Working Parties 3K, 3M, 4A, 5A, 5B, 5C, 7C and 7D - Report on progress of activities relating to WRC-23 agenda item 1.13 � �	WP 7B �	AI1.13 �	2021-09-16
�	[ 279 ] � �	Liaison statement to Working Parties 4A, 4B, 4C, 5A, 5B, 5C, 5D, 6A, 7C and 7D - Characteristics to be used for assessing interference to systems operating in the Earth exploration-satellite and meteorological-satellite services, and for conducting sharing studies � �	WP 7B �	�	2021-09-16
�	[ 278 ] � �	Analysis of interference received by EESS (passive) sensors [in the 18.6-18.8 GHz band] [caused by surface water reflections] � �	Institute of Electrical and Electronics Engineers, Inc. �	�	2021-09-09
�	[ 277 ] � �	Modification of working document towards preliminary draft new Report ITU-R RS.[RXSW_INTERF_CRITERIA] - Interference criteria of receive-only space weather sensors � �	France �	�	2021-09-09
�	[ 276 ] � �	Modification of working document towards a preliminary draft new Report ITU-R RS.[SPEC_REQTS_RX_SPACE_WEATHER] - Spectrum requirements and applicable radio service designations for receive only space weather sensors that provide data critical for predictions and warnings � �	France �	�	2021-09-09
�	[ 275 ] � �	Working document towards a preliminary draft new Report ITU-R RS.[EESS(PASSIVE)6-7 GHz] - EESS (passive) in the 6 425-7 250 MHz range � �	European Space Agency �	�	2021-09-09
�	[ 274 ] � �	Working document towards a preliminary draft revision of Recommendation ITU-R RS.2042-1 - Typical technical and operating characteristics for spaceborne radar sounder systems using the 40-50 MHz band � �	European Space Agency �	�	2021-09-09
�	[ 273 ] � �	Draft revision of Recommendation ITU-R RS.1861 - Typical technical and operational characteristics of Earth exploration-satellite service (passive) systems using allocations between 1.4 and 275 GHz � �	European Space Agency , European Organisation for the Exploitation of Meteorological Satellites �	�	2021-09-09
�	[ 272 ] � �	Adjacent band compatibility between fixed service and EESS (passive) systems operating in bands above 92 GHz and up to 174.8 GHz � �	European Space Agency , European Organisation for the Exploitation of Meteorological Satellites �	�	2021-09-09
�	[ 271 ] � �	Considerations towards a possible designation of receive-only space weather sensor systems to the Radio Astronomy Service � �	Germany (Federal Republic of) , Committee on Radio Astronomy Frequencies �	�	2021-09-09
�	[ 270 ] � �	Draft CPM Text on WRC-23 agenda item 9.1, topic a) � �	France �	AI9.1A) �	2021-09-09
�	[ 269 ] � �	Modification of elements regarding WRC-23 agenda item 9.1, topic a) � �	France �	AI9.1A) �	2021-09-09
�	[ 268 ] � �	Reply liaison statement to Working Parties 1A, 5A, 5D, 7B and 7D - Beam Wireless Power Transmission (WPT) � �	United States of America �	�	2021-09-08
�	[ 267 ] � �	Views on working document towards a preliminary draft new Report ITU-R RS.[SPEC_REQTS_RX_SPACE _WEATHER] - Spectrum requirements and applicable radio service designations for receive only space weather sensors that provide data critical for predictions and warnings � �	Committee on Radio Astronomy Frequencies �	AI9.1A) �	2021-09-08
�	[ 266 ] � �	Views on working document towards a preliminary draft new Report ITU-R RS.[RXSW_INTERF_CRITERIA] - Interference criteria of receive-only space weather sensors � �	Committee on Radio Astronomy Frequencies �	AI9.1A) �	2021-09-09
�	[ 265 ] � �	Updates to elements regarding WRC-23 agenda item 9.1, topic a) - Update for contributing Working Parties under WRC-23 agenda item 9.1, topic a) � �	Committee on Radio Astronomy Frequencies �	AI9.1A) �	2021-09-09
�	[ 264 ] � �	Elements for the draft CPM text - Agenda item 9.1, topic d) - Protection of EESS (passive) in the frequency band 36-37 GHz from non-GSO FSS space stations � �	European Space Agency , European Organisation for the Exploitation of Meteorological Satellites �	AI9.1D) �	2021-09-08
�	[ 263 ] � �	Proposed changes to the preliminary draft revised Recommendation ITU-R RS.2105-0 - Typical technical and operational characteristics of Earth exploration-satellite service (active) systems using allocations between 432 MHz and 238 GHz � �	European Space Agency �	�	2021-09-08
�	[ 262 ] � �	Working document towards a preliminary draft new ITU-R report - Analysis of interference received by EESS (passive) sensors [in the 18.6-18.8 GHz band] [caused by surface water reflections] � �	European Space Agency �	�	2021-09-08
�	[ 261 ] � �	Proposed elevation of preliminary draft new Report ITU-R RS.[RFI_SURVEY_SMOS] - Global survey of radio frequency interference observed by SMOS radiometer in the EESS (passive) band 1 400-1 427 MHz � �	European Space Agency �	�	2021-09-08
�	[ 260 ] � �	Working document towards a preliminary draft new Report ITU-R - Typical technical and operating characteristics for spaceborne active sensors in the band 3 000-3 400 MHz � �	Russian Federation �	�	2021-09-08
�	[ 259 ] � �	Proposed reply liaison statement to WP 5D on Total Integrated Gain (TIG) of EESS active antenna � �	France �	�	2021-09-08
�	[ 258 ] � �	Proposals on the preliminary draft revision of Report ITU-R RS.2068-1 � �	Russian Federation �	�	2021-09-08
�	[ 257 ] � �	Preliminary draft new Report ITU-R RS.[GROUND_PASS_SENSORS] - Technical and operational characteristics of ground-based passive sensors operating in the 51-58 GHz frequency range � �	France �	�	2021-09-08
�	[ 256 ] � �	Sensor networks essential for Indonesian space weather information services to be considered under WRC-23 agenda item 9.1, topic a) � �	Indonesia (Republic of) �	AI9.1A) �	2021-09-08
�	[ 255 ] � �	Preliminary draft revised Report ITU-R RS.2455-0 - Preliminary results of sharing studies between a 45 MHz radar sounder and incumbent fixed, mobile, broadcasting and space research services operating in the 40-50 MHz frequency range � �	United States of America �	�	2021-09-07
�	[ 254 ] � �	Reply liaison statement to Working Party 5B (copy to Working Party 7D for information) - Preliminary draft new Reports ITU-R M.[FOD 92-100 GHz] and ITU-R M.[FOD_EESS_SHARE] � �	United States of America �	�	2021-09-07
�	[ 253 ] � �	Draft reply liaison statement to Working Party 4C on updates regarding WP 7C consideration of draft new Recommendation ITU-R RS.[EESS_SAR-RNSS] and draft new Report ITU-R RS.[EESS_SAR-RNSS] � �	United States of America �	�	2021-09-08
�	[ 252 ] � �	Reply liaison statement to Working Parties 5C, 3J, 3K, AND 3M - Adjacent band compatibility between fixed service and EESS (passive) systems operating in bands above 92 GHz and up to 174.8 GHz � �	United States of America �	�	2021-09-07
�	[ 251 ] � �	Revisions to preliminary draft new Recommendation ITU R RS.[EESS_SAR-RNSS] - Evaluation of the potential for pulsed interference from planned and future spaceborne synthetic aperture radar sensors in the earth exploration-satellite (active) service to radionavigation-satellite service receivers in the 1 215-1 300 MHz band � �	United States of America �	�	2021-09-08
�	[ 250 ] � �	Revisions to a preliminary draft new Report ITU-R RS.[EESS_SAR-RNSS] � �	United States of America �	�	2021-09-07
�	[ 249 ] � �	Liaison statement to Working Parties 4A, 5A, 5C, 7A, and 7B - Request for information for use in impact studies for EESS (passive) operations in the 6 425-7 250 MHz range under RR No. 5.458 � �	United States of America �	�	2021-09-08
�	[ 248 ] � �	Reply liaison statement to Working Parties 3J, 3K, AND 3M (copied for information to Working Parties 1A, 1C, 5A, 5C, and 7D) - Propagation information under Resolution 731 (Rev.WRC-19) � �	United States of America �	�	2021-09-07
�	[ 247 ] � �	Working document towards a preliminary draft revision of Recommendation ITU-R RS.1813-1 - Reference antenna pattern for passive sensors operating in the Earth exploration-satellite service (passive) to be used in compatibility analyses in the frequency range 1.4-100 GHz � �	United States of America �	�	2021-09-07
�	[ 246 ] � �	Working document towards preliminary draft new Report ITU-R RS.[231.5-252 GHz EESS] - WRC-23 agenda item 1.14 - Studies related to possible EESS (passive) allocations in the frequency range 231.5-252 GHz � �	United States of America �	AI1.14 �	2021-09-08
�	[ 245 ] � �	Draft revision of Report ITU-R RS.2068-1 - Current and Future Use of the Band 13.25-13.75 GHz by Spaceborne Active Sensors � �	United States of America �	�	2021-09-08
�	[ 244 ] � �	Draft revision of Recommendation ITU-R RS.1861 - Typical technical and operational characteristics of Earth exploration-satellite service (passive) systems using allocations between 1.4 and 275 GHz � �	United States of America �	�	2021-09-08
�	[ 243 ] � �	Working document towards a preliminary draft new Report ITU-R RS.[SPEC_USE_RX_SPACE _WEATHER] - Spectrum use and applicable radio service designations for receive only space weather sensors that provide data used for predictions and warnings � �	United States of America �	AI9.1A) �	2021-09-07
�	[ 242 ] � �	Proposed revisions to the Work plan for WRC-23 agenda item 9.1, topic a) � �	United States of America �	AI9.1A) �	2021-09-08
�	[ 241 ] � �	Preliminary draft revision of the Report ITU-R RS.2456 - Technical and operational characteristics of RF-based space weather sensors � �	United States of America �	�	2021-09-08
�	[ 240 ] � �	Proposal to elevate preliminary draft new Report ITU-R RS.[GLOBAL_SURVEY_AQ_RFI] - Global survey of radio frequency interference observed by the Aquarius scatterometer in the 1 215-1 300 MHz band and the Aquarius radiometer in the 1 400-1 427 MHz band � �	United States of America �	�	2021-09-08
�	[ 239 ] � �	Proposal to elevate preliminary draft new Report ITU-R RS.[GLOBAL_SURVEY_SMAP_RFI] - Global survey of radio frequency interference observed by the SMAP radar in the 1 215-1 300 MHz band and the SMAP radiometer in the 1 400-1 427 MHz band � �	United States of America �	�	2021-09-07
�	[ 238 ] � �	Draft CPM text for WRC-23 agenda item 1.12 � �	United States of America �	AI1.12 �	2021-09-08
�	[ 237 ] � �	Working document toward a preliminary draft new Report ITU-R RS.[GROUND_SENSORS] � �	United States of America �	�	2021-09-08
�	[ 236 ] � �	Working document towards preliminary draft CPM text - WRC-23 agenda item 1.14 � �	United States of America �	AI1.14 �	2021-09-08
�	[ 235 ] � �	Proposed preliminary draft revision of the Report ITU-R RS.2456-0 - Space weather sensor systems using radio spectrum � �	Germany (Federal Republic of) �	AI9.1A) �	2021-09-08
�	[ 234 ] � �	Proposals on the preliminary draft revision of the Report ITU-R RS.2456-0 - WRC-23 agenda item 9.1, topic a) on space weather � �	Canada �	AI9.1A) �	2021-09-08
�	[ 233 ] � �	Proposed roadmap for regulatory actions regarding appropriate recognition and protection of space weather sensor systems - Work to be conducted by Working Party 7C under agenda item 9.1, topic a), and a possible WRC-27 agenda item � �	Germany (Federal Republic of) �	AI9.1A) �	2021-09-02
�	[ 232 ] � �	Revision of working document towards a preliminary draft new Report ITU-R RS.[SPEC_REQTS_RX_SPACE_WEATHER] - Spectrum requirements and applicable radio service designations for receive only space weather sensors that provide data critical for predictions and warning � �	Germany (Federal Republic of) �	AI9.1A) �	2021-09-02
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