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Contributions��
�	Num�ro�	Titre	Source	AI/Question	Date
�	[ 181 ] � �	List of documents issued (Documents 7C/105 - 7C/181) � �	BR Study Groups Department �	�	2021-04-15
�	[ 180 ] � �	Note to Chairman of Working Party 7C - Modelling of Earth surfaces bistatic scattering � �	Chairman, WP 3J �	�	2021-04-15
�	[ 179 ] � �	Reply liaison statement to Working Party 5D (copy to Working Parties 3K, 3M, 4A, 4B, 4C, 5A, 5B, 5C, 7C and 7D for information) - Reply liaison statement to Working Party 5D concerning WRC-23 agenda item 1.2 � �	WP 7B �	AI1.2 �	2021-04-15
�	[ 178 ] � �	Liaison statement from ITU-D Study Group 2 Question 5/2 to ITU-T Study Groups, ITU-R Study Groups, UN and External Organization on the output Report on Q5/2 - ITU-D Study Group 2 Question 5/2: Utilizing telecommunications/ICTs for disaster risk reduction and management � �	ITU-D SG 2 �	�	2021-04-14
�	[ 177 ] � �	Reply liaison statement to Working Party 4A (copy to Working Parties 3M, 4B, 4C, 5A, 5B, 5C, and 7C for information) - Reply liaison statement to Working Party 4A concerning WRC-23 agenda item 1.17 � �	WP 7B �	AI1.17 �	2021-04-09
�	[ 176 ] � �	Draft CPM text for WRC-23 agenda item 1.12 � �	Institute of Electrical and Electronics Engineers, Inc. �	AI1.12 �	2021-04-08
�	[ 175 ] � �	Draft reply liaison statement to Working Party 3J - Earth surface bistatic scattering coefficient prediction � �	Institute of Electrical and Electronics Engineers, Inc. �	�	2021-04-08
�	[ 174 ] � �	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. �	�	2021-04-08
�	[ 173 ] � �	Sharing and compatibility studies related to the protection of EESS (passive) above 71 GHz � �	European Space Agency , European Organisation for the Exploitation of Meteorological Satellites �	�	2021-04-08
�	[ 172 ] � �	Consideration of FS unwanted emissions above 92 GHz � �	European Space Agency , European Organisation for the Exploitation of Meteorological Satellites �	�	2021-04-08
�	[ 171 ] � �	Further element towards revision of Recommendation ITU-R RS.1861-0 � �	European Space Agency , European Organisation for the Exploitation of Meteorological Satellites �	�	2021-04-08
�	[ 170 ] � �	Proposed changes to the preliminary draft new Report ITU-R RS.[RF_SURVEY_SMOS] � �	European Space Agency �	�	2021-04-07
�	[ 169 ] � �	Revision to elements for possible sharing studies involving EESS (passive) sensors in the 6 425-7 250 MHz range � �	European Space Agency �	�	2021-04-07
�	[ 168 ] � �	Proposed changes to working document towards a preliminary draft revision of 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 �	�	2021-04-07
�	[ 167 ] � �	Preliminary 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 � �	European Space Agency , European Organisation for the Exploitation of Meteorological Satellites �	�	2021-04-07
�	[ 166 ] � �	Elements related to WRC-23 agenda item 1.14 - Studies related to possible EESS (passive) allocations in the frequency range 231.5-252 GHz � �	European Organisation for the Exploitation of Meteorological Satellites , European Space Agency �	AI1.14 �	2021-04-07
�	[ 165 ] � �	Summary of operating space weather sensor networks essential for Germany to be considered under agenda item 9.1, topic a) � �	Germany (Federal Republic of) �	AI9.1A �	2021-04-07
�	[ 164 ] � �	Preliminary positions on WRC-23 agenda � �	International Amateur Radio Union �	AI9.1B), AI9.1A), AI1.2, AI1.18, AI1.14, AI1.12 �	2021-04-07
�	[ 163 ] � �	Draft reply liaison statement to Working Party 5C - Protection of EESS (passive) systems operating in bands above 92 GHz and up to 174.8 GHz � �	United States of America �	�	2021-04-06
�	[ 162 ] � �	Studies under Resolution 731 (Rev. WRC-19) - Consideration of sharing and adjacent-band compatibility between passive and active services above 71 GHz � �	United States of America �	�	2021-04-06
�	[ 161 ] � �	Additional parameters concerning the typical technical and operational characteristics of Earth exploration satellite service (passive) systems to be contained in the preliminary draft revision of Recommendation ITU-R S.1861 � �	Japan �	�	2021-04-05
�	[ 160 ] � �	Protection of radio spectrum reliant space weather sensors � �	Japan �	�	2021-04-04
�	[ 159 ] � �	Proposed draft reply liaison statement to Working Party 5D - WRC-23 agenda item 1.2 � �	France �	AI1.2 �	2021-04-06
�	[ 158 ] � �	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 � �	Korea (Republic of) �	�	2021-04-02
�	[ 157 ] � �	Preliminary draft revision of the Report ITU-R RS.2456-0 - Space weather sensor systems using radio spectrum � �	Korea (Republic of) �	�	2021-04-02
�	[ 156 ] � �	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 � �	United States of America �	�	2021-03-31
�	[ 155 ] � �	Elements related to 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 �	2021-03-31
�	[ 154 ] � �	Views on long term enhancements to future revisions 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 �	�	2021-03-31
�	[ 153 ] � �	Revisions to preliminary draft new Report ITU-R RS.[EESS_SAR-RNSS] � �	United States of America �	�	2021-03-31
�	[ 152 ] � �	Proposed preliminary draft new Report ITU-R RS. [RXSW_INTERF_CRITERIA] - Interference criteria of receive-only space weather sensors � �	United States of America �	�	2021-03-31
�	[ 151 ] � �	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 �	�	2021-03-31
�	[ 150 ] � �	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 �	�	2021-03-31
�	[ 149 ] � �	Working document towards preliminary draft new Report ITU-R RS.[RXSW_SHARING_STUDIES] - Compatibility issues relating to the operation of receive-only space weather sensors while ensuring constraints are not placed on incumbent services � �	United States of America �	AI9.1A) �	2021-03-31
�	[ 148 ] � �	Proposed liaison statement to Working Parties 1B, 3J, 3K, 3L, 3M, 4A, 4C, 5A, 5B, 5C, 5D, 6A and 7D - Work to be conducted by Working Party 7C under agenda item 9.1, topic a) � �	United States of America �	AI9.1A) �	2021-03-31
�	[ 147 ] � �	Preliminary draft revision of the Report ITU-R RS.2456 - Technical and operational characteristics of RF-based space weather sensors � �	United States of America �	�	2021-03-31
�	[ 146 ] � �	Preliminary 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 �	�	2021-03-31
�	[ 145 ] � �	Working document towards a 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 �	�	2021-03-31
�	[ 144 ] � �	Working document towards a 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 �	�	2021-04-01
�	[ 143 ] � �	Preliminary draft revised Report ITU-R RS.2455-1 - 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 �	�	2021-03-31
�	[ 142 ] � �	WRC-23 agenda item 1.18 � �	WMO �	�	2021-03-30
�	[ 141 ] � �	Proposed revision to preliminary draft revision of Recommendation ITU-R RS.1861 � �	China (People's Republic of) �	�	2021-03-30
�	[ 140 ] � �	Effect of aggregate interference from multiple EESS satellites on an RNSS receiver � �	Russian Federation �	�	2021-03-26
�	[ 139 ] � �	Proposals to working document towards a preliminary draft revision of Recommendation ITU-R RS.2105 � �	Russian Federation �	�	2021-03-26
�	[ 138 ] � �	Preliminary position on WRC-23 Agenda � �	World Meteorological Organization �	�	2021-03-17
�	[ 137 ] � �	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 � �	Switzerland (Confederation of) �	�	2021-03-16
�	[ 136 ] � �	Preliminary draft revision of the Report ITU-R RS.2456 - Space weather sensor systems using radio spectrum � �	Switzerland (Confederation of) �	�	2021-03-16
�	[ 135 ] � �	Proposal towards the revision of Report ITU-R RS.2456 - Space weather sensor systems using radio spectrum � �	Germany (Federal Republic of) �	AI9.1 �	2021-03-16
�	[ 134 ] � �	Liaison statement to Working Party 7C (copy to Working Party 3M for information) - WRC-23 agenda item 1.15 � �	WP 4A �	AI1.15 �	2021-03-16
�	[ 133 ] � �	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 �	AI9.1A) �	2021-03-15
�	[ 132 ] � �	Liaison statement to Working Parties 3J, 3K, 3M, 4A, 4C, 5A, 5B, 5C, 6A, 7B, 7C and 7D - WRC-23 agenda item 1.4 � �	WP 5D �	AI1.4 �	2021-03-15
Resultats:531 documents R�sultats :� Pr�c�dent�-� 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 �-�Suivant �

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