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U.20 : Telex and gentex signalling on radio channels (synchronous 7-unit systems affording error correction by automatic repetition)

Recommendation U.20

In force components
Number
Title Status
U.20 (11/88)
 
Telex and gentex signalling on radio channels (synchronous 7-unit systems affording error correction by automatic repetition)   In force

 

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Updated : 2003.02.10