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Ionospheric Propagation and Radio Noise

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Contributions��
�	Number�	Title	Source	AI/Question	Date
�	[ 62 ] � �	Editorial amendment and software revision of Recommendation ITU-R P.372-15 - Radio Noise � �	CG 3L-7 �	�	2022-05-02
�	[ 61 ] � �	Activity Report of Correspondence Group 3J-1 gaseous attenuation � �	Chairman, CG 3J-1 �	�	2022-04-21
�	[ 60 ] � �	GASS 2021: Recent URSI Resolutions and Recommendation � �	Director, BR �	�	2021-12-16
�	[ 59 ] � �	Liaison statement to Working Party 7C (copy to Working Parties 3K, 3L, 3M, 5A, and 5B) - WRC-23 agenda item 1.12 � �	WP 6A �	AI1.12 �	2021-10-28
�	[ 58 ] � +Ann.1-12�	Report on the meeting of Working Party 3L - Ionospheric propagation and radio noise (E-meeting, 23 June - 1 July 2021) � �	Chairman, WP 3L �	�	2021-07-05
�	[ 57 ] � �	Final list of participants - Working Party 3L (e-Meeting, 23 June - 1 July 2021) � �	Director, BR �	�	2021-07-02
�	[ 56 ] � �	List of documents issued (Documents 3L/28 - 3L/56) � �	BR, Study Groups Department �	�	2021-06-24
�	[ 55 ] � �	Future revisions of Recommendation ITU-R P.372 - Representation of impulsive, narrowband and indoor noise � �	Germany (Federal Republic of) �	�	2021-06-16
�	[ 54 ] � �	Report on activities during August 2020 to June 2021 � �	Chairman, CG 3L-7 �	�	2021-06-14
�	[ 53 ] � �	Electrical noise area measurement system initial results in Germany � �	International Amateur Radio Union �	�	2021-06-14
�	[ 52 ] � �	Preliminary draft revision of Recommendation ITU-R P.372-14 - Radio noise � �	CG 3L-7 �	Q214/3 �	2021-06-14
�	[ 51 ] � �	Future revisions of Recommendation ITU-R P.372 - Radio noise measurements in Spain � �	CG 3L-7 �	�	2021-06-14
�	[ 50 ] � �	Contribution on OFCOMs planned long term radio noise measurement campaign � �	United Kingdom of Great Britain and Northern Ireland �	�	2021-06-14
�	[ 49 ] � �	Proposed considerations on indoor noise characteristics � �	Japan �	Q214/3 �	2021-06-01
�	[ 48 ] � �	Working document towards preliminary draft revisions to Recommendations ITU-R P.372-14 and ITU-R P.618-13 � �	France �	�	2021-06-09
�	[ 47 ] � �	MATLAB/Octave implementation of LFMF-SmoothEarth � �	Switzerland (Confederation of) �	�	2021-06-09
�	[ 46 ] � �	Supplement for Recommendation ITU-R P.531-14 - A new relationship function between S4 and the Nakagami "m-coefficient" � �	China (People's Republic of) �	�	2021-06-09
�	[ 45 ] � �	Supplement for Recommendation ITU-R P.531-15 - Validation results of the scope of application of the Nakagami density function for describing the statistics of the instantaneous variation of amplitude � �	China (People's Republic of) �	�	2021-06-09
�	[ 44 ] � �	Discussion document on P.368 - Ground-wave propagation curves for frequencies between 10 kHz and 30 MHz � �	United States of America �	�	2021-06-07
�	[ 43 ] � �	Liaison statement to Working Party 3L (copy to Working Parties 3M, 4C, and 7B for information) - Additional elements regarding studies under WRC-23 agenda item 1.7 � �	WP 5B �	AI1.7 �	2021-06-09
�	[ 42 ] � �	Future revisions of Recommendation ITU-R P.372 - Radio noise measurements in Spain (Rev.2) � �	Netherlands (Kingdom of the) �	�	2021-05-21
�	[ 41 ] � �	Activity Report of Correspondence Group 3M-4 - Software products, digital maps and reference numerical data products � �	CG 3M-4 �	�	2021-05-21
�	[ 40 ] � �	Adding data for scintillation model testing in Correspondence Group 6L-6 � �	European Space Agency �	�	2021-05-18
�	[ 39 ] � �	Liaison statement to Working Parties 3K, 3L, 3M, 5A, 5B, 5C and 6A (copied for information to Working Parties 7A and 7D) - WRC-23 agenda item 1.12 � �	WP 7C �	AI1.12 �	2021-04-23
�	[ 38 ] � �	Liaison statement to Working Party 5D (copy to Working Parties 3K, 3L, 3M, 5A, and 5B) - WRC-23 agenda item 1.4 � �	WP 6A �	AI1.4 �	2021-04-07
�	[ 37 ] � �	Liaison statement to Working Party 5B (copy to Working Parties 3L and 3M) - WRC-23 agenda item 1.9 � �	WP 6A �	AI1.9 �	2021-04-07
�	[ 36 ] � �	Liaison statement to Working Party 3L - New Report ITU-R F.[HF ENVIRONMENT] - Cooperative frequency competition model and the corresponding algorithms and protocols for improving the HF sky-wave electromagnetic environment � �	WP 5C �	�	2020-11-27
�	[ 35 ] � �	Reply liaison statement to Working Party 7C (copy to Working Parties 1B, 3J, 3K, 3L, 3M, 4A, 4C, 5A, 5B, 5D, 6A, and 7D for information) - WRC-23 agenda item 9.1, topic a) � �	WP 5C �	AI9.1A) �	2026-01-26
�	[ 34 ] � �	Reply liaison statement to Working Party 3L (copied to Working Parties 3M, 4C and 7B for information) - Propagation considerations of a new aeronautical mobile-satellite (R) service allocation in the frequency band 117.975-137 MHz � �	WP 5B �	AI1.7 �	2020-11-20
�	[ 33 ] � �	Liaison statement to Working Party 5D (copy to Working Parties 3K, 3L, 3M, 5A, and 5B) - WRC-23 agenda item 1.4 � �	WP 6A �	AI1.4 �	2020-10-19
�	[ 32 ] � �	Liaison statement to Working Party 7C (copy to Working Parties 1B, 3J, 3K, 3L, 3M, 4A, 5A, 5B, 5C, 5D and 7D) - WRC-23 agenda item 9.1, topic a) � �	WP 6A �	AI9.1A) �	2021-01-26
�	[ 31 ] � �	Liaison statement to Working Party 7C (copy to Working Parties 3K, 3L, 3M, 5A and 5B) - WRC-23 agenda item 1.12 � �	WP 6A �	AI1.12 �	2020-10-16
�	[ 30 ] � �	Liaison statement to ITU-R Working Party 5B (copy for information to Working Parties 3L, 3M, 5A, 5C, and 6A) - Preparation for WRC-23 agenda item 1.9 - Review of Appendix 27 of the Radio Regulations to accommodate digital aeronautical HF technologies � �	International Civil Aviation Organization �	AI1.9 �	2020-10-09
�	[ 29 ] � �	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 WRC-23 agenda item 9.1, topic a) � �	WP 7C �	AI9.1A) �	2020-10-05
�	[ 28 ] � +Ann.1-18�	Report on the meeting of Working Party 3L - Ionospheric propagation and radio noise (E-meeting, 12-20 August 2020) � �	Chairman, WP 3L �	�	2020-08-20
�	[ 27 ] � �	Final list of participants - Working Party 3L (E-meeting, 10-20 August 2020) � �	Director, BR �	�	2020-08-20
�	[ 26 ] � �	List of Documents issued (Documents 3L/1 - 3L/26) � �	BR, Study Groups Department �	�	2020-08-12
�	[ 25 ] � �	Liaison statement to Working Parties 3L, 3M, 5A, 5C, 6A and ICAO - WRC-23 agenda item 1.9 - Review of Appendix 27 of the Radio Regulations to accommodate digital aeronautical HF technologies � �	WP 5B �	AI1.9 �	2020-08-26
�	[ 24 ] � �	Preliminary draft revision of Recommendation ITU-R P.372-15 - Radio noise � �	CG 3L-7 �	�	2020-08-06
�	[ 23 ] � �	Future revisions of Recommendation ITU-R P.372 - Correction of a system noise component in man-made noise values in the Radio Noise Data Bank � �	Netherlands (Kingdom of the) �	�	2020-08-04
�	[ 22 ] � �	Review of Report ITU-R SM.2155 and related document � �	International Amateur Radio Union �	�	2020-08-04
�	[ 21 ] � �	Electrical Noise Area Measurements System (ENAMS) � �	International Amateur Radio Union �	�	2020-08-04
�	[ 20 ] � �	Future revisions of Recommendation ITU-R P.372 - Quiet rural radio noise measurements in The Netherlands � �	Netherlands (Kingdom of the) �	�	2020-08-04
�	[ 19 ] � �	Report on activities during May 2019 to August 2020 � �	CG 3L-7 �	�	2020-08-05
�	[ 18 ] � �	Future revisions of Recommendation ITU-R P.372 - Radio Noise Data Bank updated with University of Twente data � �	Netherlands (Kingdom of the) �	�	2020-08-04
�	[ 17 ] � �	Future revisions of Recommendation ITU-R P.372 - New table keeper for radio noise measurements � �	Netherlands (Kingdom of the) �	�	2020-08-04
�	[ 16 ] � �	Liaison statement to Working Parties 4C, 7B, 3M and 3L - WRC-23 agenda item 1.7 - Consideration of a new aeronautical mobile-satellite (R) service allocation in the frequency band 117.975-137 MHz � �	WP 5B �	AI1.7 �	2020-08-05
�	[ 15 ] � �	Future revisions of Recommendation ITU-R P.372 - Comments and suggestions on ongoing draft Recommendation ITU-R P.372-15 � �	Netherlands (Kingdom of the) �	�	2020-08-03
�	[ 14 ] � �	Preliminary draft new Recommendation ITU-R P.[DIGPROD] - Acquisition, presentation, analysis and use of digital products in studies of radiowave propagation � �	CG 3M-4 �	�	2020-08-04
�	[ 13 ] � �	Discussion document on a methodology related to the estimation of ionospheric scintillation parameters based on GNSS receivers � �	France �	�	2020-08-03
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