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ITU-R WP3J.AR C

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Propagation Fundamentals

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Contributions
	Number	Title	Source	AI/Question	Date
	[ 83 ]	Draft revision to ITU-R P. 2040-2 - complex relative permittivity of building materials	United States of America		2022-05-16
	[ 82 ]	Adding symbol to the ninth ITU Radio Regulations band and revising Recommendation ITU-R V.431-8 - Nomenclature: Number 12, THF 300 to 3 000 GHz, Decimillimetric waves	ATDI	Q228/3	2022-04-06
	[ 81 ]	Working document towards a preliminary draft revision to Recommendation ITU-R P.839-4 - Rain height model for prediction methods	France		2022-03-21
	[ 80 ]	Working document towards a preliminary draft revision to Recommendation ITU-R P.678-3 - Characterization of the variability of propagation phenomena and estimation of the risk associated with propagation margin	France		2022-03-21
	[ 79 ]	Preliminary draft revision to Recommendation ITU-R P.1057-6 - Probability distributions relevant to radiowave propagation modelling	France		2022-03-21
	[ 78 ]	Proposed editorial amendment of Recommendation ITU-R P.676-12 - Attenuation by atmospheric gases and related effects - Annex 2: Approximate estimation of gaseous attenuation in the frequency range 1-350 GHz	Canada		2021-06-14
	[ 77 ]	Supplement on attenuation and reflection characteristics of clothing materials - Technology trends of active services in the frequency range 275-3 000 GH	National Institute of Information and Communications Technology (NICT)		2021-06-14
	[ 76 ]	Variability of rain specific attenuation evaluated from experimental drop size distributions	Spain		2021-06-14
	[ 75 ]	Draft reply liaison statement to Working Party 5D - WRC-23 agenda item 1.4	Japan	AI1.4	2021-06-14
	[ 74 ]	Discussion document - Site specific model of building entry loss - Prediction of building entry loss	Japan		2021-06-14
	[ 73 ]	Supports document for Annex 18 to Document 3M/180 - Proposed draft revision of Recommendation ITU-R P.2108-0 - Prediction of clutter loss	N/A		2021-06-14
	[ 72 ]	[WORKING DOCUMENT TOWARDS A] preliminary draft revision of Recommendation ITU-R P.1409-1 - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 1 GHz	Japan		2021-06-14
	[ 71 ]	[DRAFT] reply liaison to Working Party 7C - Earth surface bistatic scattering coefficient prediction	Institute of Electrical and Electronics Engineers, Inc.		2021-06-14
	[ 70 ]	Proposals on [WORKING DOCUMENT TOWARDS A] preliminary draft revision of Recommendation ITU-R P/1409-1 - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 1 GHz	Russian Federation		2021-06-10
	[ 68 ]	Submission of ERA5 derived global database of 10 metre wind speed	Italy		2021-06-10
	[ 67 ]	Working document towards a preliminary draft revision to Recommendation ITU-R P.840-8	France		2021-06-09
	[ 66 ]	Submission of rain statistics for DBSG-3	United Kingdom of Great Britain and Northern Ireland		2021-06-09
	[ 65 ]	Draft revision to Recommendation ITU-R P.1407-7 - Multipath propagation and parameterisation of its characteristics Estimation of Rice factor for fading models	United Kingdom of Great Britain and Northern Ireland		2021-06-09
	[ 64 ]	Discussion document - Calibration of terrain loss measurement between NGSO satellite and Earth station	China (People's Republic of)		2021-06-09
	[ 63 ]	Proposed modification to Recommendation ITU-R P.676-12 - Attenuation by atmospheric gases	China (People's Republic of)		2021-06-09
	[ 62 ]	Propsal to amend the Recommendation UIT-R P.2040-1	Spain		2021-06-11
	[ 61 ]	Analysis of rain attenuation models and proposed modifications to Recommendation ITU-R P.618-13	China (People's Republic of)		2021-06-09
	[ 60 ]	Proposed modification to Recommendation ITU-R P.1622: Prediction methods required for the design of Earth space systems operating between 20 THz and 375 THz	China (People's Republic of)		2021-06-09
	[ 59 ]	Proposed modification to Recommendation ITU-R P.453-14 - Global digital maps of surface and elevated ducts	China (People's Republic of)		2021-06-09
	[ 58 ]	Proposed draft modification to Recommendation IT-R P.834-9 - Excess radio path length and its variations	China (People's Republic of)		2021-06-09
	[ 57 ]	Proposed modification to Recommendation ITU-R P.834-9 - The refraction correction of elevation angle for the mean annual global reference atmosphere	China (People's Republic of)		2021-06-09
	[ 56 ]	Proposed modification to Recommendation ITU-R P.841-6 and P.581-2 - Conversion of annual statistics to worst-month statistics for two statistical methods	China (People's Republic of)		2021-06-09
	[ 55 ]	Discussion document regarding Recommendation ITU-R P.2109 - Analysis of Building Entry Loss Model from ITU-R P.2109-1	United States of America		2021-06-07
	[ 54 ]	Proposed editorial amendment of Recommendation ITU-R P.676-12 - A ttenuation by atmospheric gases and relaed efects - Downwelling and upwelling microwave brightness temperature	United States of America		2021-06-07
	[ 53 ]	Working document towards apreliminary draft revision to ITU-R P.1057-6 - Statistics of normally distributes random variables	United States of America		2021-06-07
	[ 52 ]	Draft editorial amendment of Recommendation ITU-R P.836-6 - Water vapour: surface density and total columnar content	Luxembourg		2021-06-02
	[ 51 ]	Terrain loss measurement between non-GSO satellites and Earth stations and model proposals	China (People's Republic of)		2021-04-16
	[ 50 ]	Draft reply liaison statement to ITU-R Working Party 7C - Earth surface bistatic scattering coefficient prediction	European Space Agency		2021-04-19
	[ 49 ]	Draft reply liaison statement to Working Party 5D - WRC-23 agenda item 1.4	Japan	AI1.4	2021-04-19
	[ 48 ]	Proposed draft revision of Recommendation ITU-R P.1410-5 - Propagation data and prediction methods required for the design of terrestrial broadband radio access systems operating in a frequency range from 3 to 60 GHz	Japan		2021-04-19
	[ 47 ]	Discussion documents- Measurement result (or plan) for site specific model of building entry loss - Prediction of building entry loss	Japan		2021-04-19
	[ 46 ]	Proposed draft revision of Recommendation ITU-R P.833-9 - Attenuation in vegetation	Japan		2021-04-19
	[ 45 ]	Proposed draft revision of Recommendation ITU-R P.2108 - Prediction of clutter loss	Japan		2021-04-19
	[ 44 ]	[WORKING DOCUMENT TOWARDS A] preliminary draft revision of Recommendation ITU-R P.1409-1 - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 1 GHz	Japan		2021-04-19
	[ 43 ]	Wind-related data products to be used in conjunction with the sea surface reflection model	Institute of Electrical and Electronics Engineers, Inc.		2021-04-19
	[ 42 ]	Proposed modifications to working document towards a preliminary draft revision of Recommendation ITU-R P.1409-1 - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 1 GHz	Russian Federation		2021-04-15
	[ 41 ]	Attenuation of atmospheric gases cosecant elevation angle dependence of slant attenuation	Russian Federation		2021-04-15
	[ 40 ]	Proposed draft revision to ITU-R P.833	United States of America		2021-04-12
	[ 39 ]	Python implementation of an ITU-R propagation framework	European Space Agency , Austria , Belgium , Czech Technical University in Prague, Faculty of Electrical Engineering		2020-08-03
	[ 38 ]	Draft [EDITORIAL] amendment of Recommendation ITU-R P.834-9 Section 6 - Effects of tropospheric refraction on radiowave propagation: The tropospheric excess path length for Earth-space paths	European Space Agency		2020-08-03
	[ 37 ]	Discussion document towards a proposed draft revision of Recommendation ITU-R P.833-9	France , Japan		2020-08-03
	[ 36 ]	Submission of rainfall rate statistics for DBSG-3 update for 20 sites in Ireland	France		2020-08-03
	[ 35 ]	Working document towards a preliminary draft revision to Recommendation ITU-R P.837-7	France		2020-08-03
	[ 34 ]	Discussion document towards a proposed draft revision to Recommendation ITU-R P.1407-7	France		2020-08-03
	[ 33 ]	[DRAFT] support document for proposed draft revision of Recommendation ITU-R P.1409-1 (Annex 13 to Working Party 3M Chairman's Report) - Propagation data and prediction methods for systems using high altitude platform stations and other elevated stations in the stratosphere at frequencies greater than about 1 GHz	Japan		2020-08-03
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