International Telecommunication Union � ITU
Fran�ais� Espa�ol
�
Site map Contact us Print version
� Home : ITU-R : Publications : Recommendations : F�Series : F.1821
Recently posted�-� Search Recommendations
� �
F.1821�:�Characteristics of advanced digital high frequency (HF) radiocommunication systems �

Recommendation F.1821

Approved in 2007-09

Managed by R03-SG05

Main
Number
 Title Status Questions
F.1821-0 (09/07)
� 		Characteristics of advanced digital high frequency (HF) radiocommunication systems � In force (Main)
 147/9 �

�

Top�-� Feedback�-� Contact us�-� Copyright � ITU�2008�All Rights Reserved
Contact for this page :� ITU-R Web coordinator
Updated :�2013/09/30		 �