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Ionospheric propagation

Results:92 total items.
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Contributions  Documents / Contributions
 
Number 
Received Source Title Questions
[ 67 ]  
 
2006-08-20 Chairman, WP 3L   Proposed revision of Question ITU-R 226-2/3 - Ionospheric and tropospheric characteristics along satellite-to-satellite paths     226/3  
[ 66 ]  
 
2006-08-20 Chairman, WP 3L   Proposed revision of Question ITU-R 218-2/3 - Ionospheric influences on space systems     218/3  
[ 65 ]  
 
2006-07-26 WP 9C   Liaison statement from WP 9C - Response to liaison statement on the specification of system performance parameters for digital HF communications and broadcasting     N/A  
[ 64 ]  
 
2006-05-01 BR, Study Group Department   ITU-R Study Group 1 Questions to be brought to the attention of Working Parties 3L and 3M     N/A  
[ 63 ]  
 
2005-10-14 WP 6E   Liaison statement to Working Party 3L - The specification of system performance parameters for digital HF broadcasting     N/A  
[ 62 ]  
+Ann.1-14 
2005-10-11 Chairman, WP 3L   Chairman's Report - Meeting in Cleveland, USA (4 - 7 October 2005)     N/A  
[ 61 ]  
 
2005-10-25 Director, BR   Final list of participants     N/A  
[ 60 ]  
 
2005-09-21 BR Study Group Department   List of documents issued     N/A  
[ 59 ]  
 
2005-09-20 Convenor, Correspondence Group on Power Line ...   Progress report for the period of November 2004 to September 2005     230/3  
[ 58 ]  
 
2005-09-20 European Space Agency (ESA)   Draft proposed modifications to the model used in Recommendation ITU-R P.531-8 - Ionospheric propagation data and prediction methods required for the design of satellite services and systems     N/A  
[ 57 ]  
 
2005-09-19 Chairman, Rapporteur Group 3L-RG2   Propagation at Frequencies below about 2 MHz - Chairman's Report for the period of October 2004 to October 2005     N/A  
[ 56 ]  
 
2005-09-14 Australia and United Kingdom   A procedure for the prediction of the reliability of digitally modulated services at HF     229/3  
[ 55 ]  
 
2005-09-14 United Kingdom and Australia   Proposed revisions to Recommendations ITU-R P.1239, ITU-R P.1240 and ITU-R P.533-8 - Representation of the variability of foF2 and MUF     212/3  
[ 54 ]  
 
2005-09-14 Australia and United Kingdom   Draft liaison statement to Working Parties 6E, 8A and 9C     229/3  
[ 53 ]  
 
2005-09-14 United Kingdom and Australia   A model for time and frequency spreading of HF radio signals propagating through the equatorial ionosphere     229/3  
[ 52 ]  
 
2005-09-14 United Kingdom and Australia   Proposed draft revision of Recommendation ITU-R P.1239 - ITU-R Reference ionospheric characteristics     212/3  
[ 51 ]  
 
2005-09-14 Australia and United Kingdom   Proposed draft revision of Recommendation ITU-R P.373-7     212/3  
[ 50 ]  
 
2005-09-15 Japan   Revision to Recommendation ITU-R P.684-4 - Extension of propagation distance up to 16 000 km in the LF prediction method     225/3  
[ 49 ]  
 
2005-09-13 United States of America   Seasonal variation of LF/MF sky-wave field strengths     225/3  
[ 48 ]  
 
2005-08-24 Russian Federation   Seasonal changes of a field strength ground wave in LW band     N/A  
[ 47 ]  
 
2005-04-14 WP 6E   Liaison statement to Working Party 3L - Digital radio mondiale DRM daytime MW tests     60/6  
[ 46 ]  
 
2005-03-29 WP 7D   Liaison statement to WPs 1A, 3L and 6E - Impact of cable and power line telecommunications systems on radiocommunication systems operating in the LF, MF, HF and VHF bands below 80 MHz     221/1  
[ 45 ]  
 
2005-03-29 WP 7D   Liaison statement to Working Party 9C with copy to Working Parties 3L, 6E, 8A and 8B - Review of allocations to all services in the HF bands between 4 and 10 MHz     N/A  
[ 44 ]  
 
2004-11-24 WP 6E   Liaison statement to Working Parties 3L, 7D, 8A, 8B and 9C regarding WRC-07 Agenda item 1.13     N/A  
[ 43 ]  
 
2004-11-24 WP 6E   Reply to liaison statement to WP 1A and copy to WP 3L for information - Impact of cable and power line telecommunication systems on radiocommunication systems operating in the LF, MF, HF and VHF bands below 80 MHz     N/A  
[ 42 ]  
 
2004-11-23 WP 6E   Reply to liaison statement to WP 3L - Ionospheric parameters in connection with modelling approaches in support of adaptive HF communication systems in the fixed service     N/A  
[ 41 ]  
+Ann.1-18 
2004-10-29 Chairman, WP 3L   Report on the meeting of Working Party 3L (Geneva, 25-27 October 2004)     N/A  
[ 40 ]  
 
2004-10-26 Director, BR   Final list of Participants     N/A  
[ 39 ]  
 
2004-10-22 BR Study Group Department   List of documents issued     N/A  
[ 38 ]  
 
2004-10-20 WP 1A   Liaison statement to WPs 3L, 6E, 7A, 7D, 8A, 8B and 9C - Impact of cable and power line telecommunications systems on radiocommunications systems operating in the LF, MF, HF and VHF bands below 80 MHz     N/A  
[ 37 ]  
 
2004-10-12 United Kingdom of Great Britain and Northern Ireland   Progress towards the revision of the Recommendation ITU-R P.313-9 and the provision of information relating to short-term prediction     213-1/3  
[ 36 ]  
 
2004-10-12 United Kingdom of Great Britain and Northern Ireland   Improvements in the modelling of day to day variability of ionospheric characteristics     229/3  
[ 35 ]  
 
2004-10-12 United Kingdom of Great Britain and Northern Ireland   Progress towards the revision of the maps for FOF2     212-1/3  
[ 34 ]  
 
2004-10-12 United Kingdom of Great Britain and Northern Ireland   Draft response to the liaison statement from Working Party 9C (Doc. 3L/18) - Ionospheric parameters in connection with modelling approaches in support of adaptive HF communication systems in the fixed service     N/A  
[ 33 ]  
 
2004-10-12 United Kingdom of Great Britain and Northern Ireland   Measurements of the Doppler and multipath spread of HF signals received over a path oriented along the mid-latitude trough     229/3, 227-1/3  
[ 32 ]  
 
2004-10-12 United Kingdom of Great Britain and Northern Ireland   Modelling the ionospheric trough     229/3, 212/3  
[ 31 ]  
 
2004-10-11 Brazil (Federative Republic of)   The concept of HF nomaly domain     229/3  
[ 30 ]  
 
2004-10-11 LS telcom AG   Selection of the path's reference points in LF/MF skywave prediction     225/3  
[ 29 ]  
 
2004-10-11 Chairman, Rapporteur Group 3L-RG2   Propagation at frequencies below about 2 MHz - Chairman's Report for the period of November 2003 to October 2004     N/A  
[ 28 ]  
 
2004-10-07 Japan   Proposed revision of Recommendation ITU-R P.684-3 - Prediction of field strength at frequencies below about 150 kHz     225/3  
[ 27 ]  
 
2004-10-07 Japan   Nation-wide survey for measuring LF wave field strengths in winter     225/3  
[ 26 ]  
(Rev.1) 
2004-10-06 WP 9C   Liaison statement to WPs 3L, 6E, 7D, 8A and 8B - Draft CPM text for WRC-07 Agenda item 1.13     N/A  
[ 25 ]  
+Add.1 
2004-09-30 Rapporteur Group 3L-RG4, Chairman's Report   Measurements and Data Banks     225/3  
[ 24 ]  
 
2004-10-05 United States of America   Working document toward a preliminary draft new Recommendation - Radiation and propagation of emissions from access PLT systems using overhead power lines     228/3  
[ 23 ]  
 
2004-09-30 LS Telcom AG   Boundaries for Europe in LF/MF software     N/A  
[ 22 ]  
 
2004-09-29 LS Telcom AG   Correction in summation of nuissance field in Recommendation ITU-R P.842-2     N/A  
[ 21 ]  
 
2004-09-27 Australia   Prediction of propagation parameters for HF digital systems     229/3  
[ 20 ]  
 
2004-09-16 Chairman WP 3L   Liaison statement to WP 9C (Copy to WP 6E for information) - Ionospheric parameters in connection with modelling approaches in support of adaptive HF communication systems in the fixed service     N/A  
[ 19 ]  
 
2004-05-18 WP 6E   Liaison statement to WPs 3L, 8A and 9C - Establishment of a Rapporteur for the preparation of CPM-06 text on Agenda item 1.13, Resolution 544     N/A  
[ 18 ]  
 
2004-02-27 WP 9C   Liaison statement to WP 3L (copy to WP 6E for information) - Discussion of ionospheric parameters for consideration by WP 3L in connection with modelling approaches supporting adaptive HF communication systems in the fixed service     N/A  
Results:92 total items.
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