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ITU-R SG03

Radiowave propagation

Results:111 total items.
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Contributions  Documents / Contributions
 
Number 
Received Source Title AI/Question
[ 86 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 226-3/3 - Ionospheric and tropospheric characteristics along satellite-to-satellite paths      
[ 85 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 221-1/3 - Propagation by way of sporadic E and other ionization      
[ 84 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 218-4/3 - Ionospheric influences on satellite systems      
[ 83 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 214-3/3 - Radio noise      
[ 82 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Recommendation ITU-R P.1239-2 - ITU-R Reference Ionospheric Characteristics      
[ 81 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Recommendation ITU-R P.533-10 - Method for the prediction of the performance of HF circuits      
[ 80 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Recommendation ITU-R P.832-2 - World atlas of ground conductivities      
[ 79 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Recommendation ITU-R P.534-4 - Method for calculating sporadic-E field strength      
[ 78 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Recommendation ITU-R P.684-5 - Prediction of field strength at frequencies below about 150 kHz      
[ 77 ]  
 
2011-10-26 WP3K   Draft revision of Question ITU-R 211-5/3 - Propagation data and propagation models in the frequency range 300 MHz to 100 GHz for the design of short-range wireless radiocommunication systems and wireless local area networks (WLAN)     211-5/3  
[ 76 ]  
(Rev.1) 
2011-10-26 WP 3K   Draft revision of Recommendation ITU-R P.1238-6 - Propagation data and prediction methods for the planning of indoor radiocommunication systems and radio local area networks in the frequency range 900 MHz to 100 GHz     211-5/3  
[ 75 ]  
(Rev.1) 
2011-10-26 WP 3K   Draft revision of Recommendation ITU-R P.1816 - The prediction of the time and the spatial profile for broadband land mobile services using UHF and SHF bands     211-5/3  
[ 74 ]  
(Rev.1) 
2011-10-26 WP 3K   Draft revision of Recommendation ITU-R P.528-2 - Propagation curves for aeronautical mobile and radionavigation services using the VHF, UHF and SHF bands     203-4/3  
[ 73 ]  
(Rev.1) 
2011-10-26 WP 3M   Draft revision of Recommendation ITU-R P.1144-5 - Guide to the application of the propagation methods of Radiocommunication Study Group 3      
[ 72 ]  
(Rev.1) 
2011-10-26 WP 3J   Draft revision to Recommendation ITU-R P.526-11 - Propagation by diffraction     202-3/3  
[ 71 ]  
(Rev.1) 
2011-10-26 WP 3J   Draft revision of Recommendation ITU-R P.840-4 - Attenuation due to clouds and fog     201-3/3  
[ 70 ]  
(Rev.1) 
2011-10-26 WP 3J   Draft revision to Recommendation ITU-R P.833-6 - Attenuation in vegetation     202-3/3  
[ 69 ]  
(Rev.1) 
2011-10-26 WP 3J   Draft revision to Recommendation ITU-R P.453-9 - The radio refractive index: its formula and refractivity data     201-3/3  
[ 68 ]  
(Rev.1) 
2011-10-26 WP 3J   Draft revision of Question ITU-R 201-3/3 - Radiometeorological data required for the planning of terrestrial and space communication systems and space research application     201-3/3  
[ 67 ]  
(Rev.1) 
2011-10-25 WP 3J   Draft revision of Recommendation ITU-R P.837-5 - Characteristics of precipitation for propagation modelling     201-3/3  
[ 66 ]  
(Rev.1) 
2011-10-25 WP 3J   Draft new Question ITU-R [NANO]/3 - The effect of nanostructure materials on propagation      
[ 65 ]  
(Rev.1) 
2011-10-25 WP 3J   Draft revision to Recommendation ITU-R P.676-8 - Attenuation by atmospheric gases     201-3/3  
[ 64 ]  
(Rev.1-2) 
2011-10-25 WP 3J   Draft revision of Recommendation ITU-R P.835-4 - Reference standard atmospheres     201-3/3  
[ 63 ]  
 
2011-10-25 WP 3J   Draft revision of Resolution ITU-R 40-2 - Worldwide databases of terrain height and surface features      
[ 62 ]  
(Rev.1) 
2011-10-25 WP 3J   Draft revision of Question ITU-R 209/3 - Variability and risk parameters in system performance analysis      
[ 61 ]  
(Rev.1) 
2011-10-25 WP 3K   Draft revision of Recommendation ITU-R P.1411-5 - Propagation data and prediction methods for the planning of short-range outdoor radiocommunication systems and radio local area networks in the frequency range 300 MHz to 100 GHz     211-5/3  
[ 60 ]  
(Rev.1) 
2011-10-21 WP 3K   Draft modification to Recommendation ITU-R P.1410-4 - 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     203-4/3  
[ 59 ]  
(Rev.1) 
2011-10-21 WP 3K   Draft modification to Question 203-4/3      
[ 58 ]  
 
2011-08-08 Iran (Islamic Republic of)   Draft new Question ITU-R [NANO]/3 - The effect of nanostructure materials on electromagnetic emission      
[ 57 ]  
 
2011-10-10 United States of America   Proposed modification to Resolution ITU-R 25-2      
[ 56 ]  
 
2010-12-16 SG 6   Note from Study Group 6 to the RAG proposal for revision to the guidelines for the working methods and/or Resolution ITU-R 1      
[ 55 ]  
 
2010-02-18 WP 1A   Liaison statement to Study Group 3 - Question ITU-R 230-1/3 on "Prediction methods and models applicable to power line telecommunications systems"     221-1/1, 218-1/1  
[ 54 ]  
 
2010-02-17 WP 1B   Draft Liaison statement to Working Parties 4A, 4C, 5A, and 6A (copy to Working Parties 5B, 5C, 7A, 7B, 7C and Study Group 3) on WRC-12 Agenda item 1.2      
[ 53 ]  
 
2010-02-16 Director, BR   Invitation to contribute to CWG-WCIT12      
[ 52 ]  
 
2009-10-12 WP 1B   Liaison statement to ITU-R Study Group 3 and Working Parties 4A, 4C, 5A, 5B, 5C, 5D, 6A, 7B, 7C, 7D on the progress of WRC-12 Agenda item 1.19      
[ 51 ]  
 
2009-07-01 Director, BR   World Telecommunication Policy Forum 2009 (WTPF-09)      
[ 50 ]  
 
2009-06-12 Chairman, SG 3   Study Group 3 Summary Record (Meeting: 11-12 June 2009)      
[ 49 ]  
 
2009-06-12 Director, BR   Final List of Participants - Study Group 3 (Geneva, 11-12 June 2009)      
[ 48 ]  
 
2009-06-10 BR Study Group Department   List of documents issued      
[ 47 ]  
(Rev.1) 
2009-06-10 WP 3J   Draft revision to Recommendation ITU-R P.840-3 - Attenuation due to clouds and fog (Question ITU-R 201-3/3)     201/3  
[ 46 ]  
(Rev.1) 
2009-06-10 WP 3M   Draft revision of Recommendation ITU-R P.1144-4 - Guide to the application of the propagation methods of Radiocommunication Study Group 3      
[ 45 ]  
(Rev.1) 
2009-06-10 WP 3M   Draft revision of Recommendation ITU-R P.681-6 - Propogation data required for the design of earth-space land mobile telecommunication systems - Proposed new wideband LMSS model (Question ITU-R 207-3/3)     207/3  
[ 44 ]  
(Rev.1) 
2009-06-10 WP 3L   Draft revision of Recommendation ITU-R P.1321-2 - Propagation factors affecting systems using digital modulation techniques at LF and MF (Question ITU-R 225/3)     225/3  
[ 43 ]  
 
2009-06-10 Chairman, WP 3J   Executive Report to Study Group 3      
[ 42 ]  
 
2009-06-10 WP 3K   Proposed modifications to Question ITU-R 211-4/3 - Propagation data and propagation models for the design of short-range wirelesws communication and access systems and wireless local area networks (WLAN) in the frequency range 300 MHz ot 100 GHz      
[ 41 ]  
(Rev.1) 
2009-06-10 WP 3M   Draft revision of Recommendation ITU-R P.311 - Acquisiton, presentation and analysis of data in studies of tropospheric propagation      
[ 40 ]  
(Rev.1) 
2009-06-10 WP 3L   Draft revision of Recommendation ITU-R P.684-4 - Prediction of field strength at frequencies below about 150 kHz (Question 225-5/3)     225/3  
[ 39 ]  
 
2009-06-10 WP 3L   Draft revision of Question ITU-R 230/3 - Prediction methods and models applicable to power line telecommunications systems      
[ 38 ]  
 
2009-06-10 WP 3L   Draft revision of Question ITU-R 213-1/3 - The short-term forecasting of operational parameters for ionospheric and trans-ionospheric radiocommunications and radionavigation services      
[ 37 ]  
 
2009-06-10 Chairman, WP 3L   Ionospheric propagation and radio noise - Executive Report      
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