G Ny Hongkong :

 

listen to this historic cw call from the Royal Naval Wireless Station GYP, recorded by Michael Marten in 1973

 

wish this way of QSLing would be standard :-)) (Dan Greenall, 1973)

 

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Callsigns:
GFH**
GYP
GZO*

 

Frequencies Morse Telegraphy:
8533.2

 

 

Frequencies Radioteletype:
22990

 

Systems used:
50 Bd