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ITU-R WP9C

Systems below 30 MHz (HF and others)

Results:6 total items.
Contributions  [ Questions: 147/9 ]   Documents / Contributions
 
Number 
Received Source Title Questions
[ 149 ]  
 
2007-04-25 Japan   Request for developing a new Recommendation for HF adaptive communication systems     241/9, 147/9  
[ 104 ]  
 
2005-11-20 United States of America   Revisions to WP 9C - Annexes 4 and 5 - Working document toward a draft new Recommendation: characteristics of systems in the MF/HF bands     205/9, 147/9  
[ 98 ]  
 
2005-11-08 Canada   Preliminary draft new Recommendation ITU-R F.[FS.HF.CHAR] - "Characteristics of fixed communications systems operating in the 2-30 MHz range"     205/9, 147/9  
[ 67 ]  
 
2005-04-11 United States of America   Working document toward a preliminary draft new Recommendation - Characteristics of frequency adaptive communications systems in the MF/HF bands     205/9, 147/9  
[ 66 ]  
 
2005-04-11 United States of America   Working document toward a preliminary draft new Recommendation - Characteristics of high frequency (HF) non-adaptive communication systems in the MF/HF bands     147/9  
[ 41 ]  
 
2004-09-15 United States of America   Working document toward a preliminary draft new Recommendation - Characteristics of frequency adaptive communications sytems in the MF/HF bands     205/9, 147/9  
Results:6 total items.
 
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