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UIT-R SG03

Propagation des ondes radioélectriques

Resultats:31 documents
Résultats :  1 - 2  - Suivant Next
Contributions  [ Source: WP 3L ]   Documents / Contributions
 
Numéro 
Date Source Titre Questions
[ 107 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Recommendation ITU-R P.313-10 - Exchange of information for short-term forecasts and transmission of ionospheric disturbance warnings     213-2/3  
[ 93 ]  
 
2011-10-26 Chairman, WP 3L   Executive Report to Study Group 3 - Ionospheric propagation and radio noise     N/A  
[ 92 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Recommendation ITU-R P.531-10 - Ionospheric propagation data and prediction methods required for the design of satellite services and systems     218-4/3  
[ 91 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 213-2/3 - The short-term forecasting of operational parameters for trans-ionospheric radiocommunication and aeronautical radionavigation services     N/A  
[ 90 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 225-5/3 - The prediction of propagation factors affecting systems at LF and MF including the use of digital modulation techniques     N/A  
[ 89 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 230-1/3 - Prediction methods and models applicable to power line telecommunications systems     N/A  
[ 88 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 229-1/3 - Prediction of sky-wave propagation conditions, signal intensity, circuit performance and reliability at frequencies between about 1.6 and 30 MHz, in particular for systems using digital modulation techniques     N/A  
[ 87 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 222-2/3 - Measurements and data banks of ionospheric characteristics and radio noise     N/A  
[ 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     N/A  
[ 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     N/A  
[ 84 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 218-4/3 - Ionospheric influences on satellite systems     N/A  
[ 83 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Question ITU-R 214-3/3 - Radio noise     N/A  
[ 82 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Recommendation ITU-R P.1239-2 - ITU-R Reference Ionospheric Characteristics     N/A  
[ 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     N/A  
[ 80 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Recommendation ITU-R P.832-2 - World atlas of ground conductivities     N/A  
[ 79 ]  
(Rev.1) 
2011-10-26 WP 3L   Draft revision of Recommendation ITU-R P.534-4 - Method for calculating sporadic-E field strength     N/A  
[ 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     N/A  
[ 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  
[ 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     N/A  
[ 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     N/A  
[ 37 ]  
 
2009-06-10 Chairman, WP 3L   Ionospheric propagation and radio noise - Executive Report     N/A  
[ 26 ]  
 
2009-06-10 WP 3L   Draft revision of Question ITU-R 222-1/3 - Measurements and data banks of ionospheric characteristics and noise     N/A  
[ 25 ]  
 
2009-06-10 WP 3L   Draft revision of Question ITU-R 218-3/3 - Ionospheric influences on space systems     N/A  
[ 24 ]  
(Rev.1) 
2009-06-10 WP 3L   Proposed revision to Recommendation ITU-R P.531-9 - Revision and clarification related to ionospheric scintillation effects (Question ITU-R 218/3)     218/3  
Resultats:31 documents
Résultats :  1 - 2  - Suivant Next
 
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