MoI Praha :

 

the characteristic VVV marker, often heard (rb, 1994)

 

reports were answered by a very nice QSL folder (rb, 1993)

 

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Callsigns:
OLX

 

Frequencies Voice:
3280
4278
4601
5301
5775
6280
6758
8142
9320
11002
11416
14977
18303

 

Frequencies Morse Telegraphy:
3239
3280
4278
4601
5301
5775
6280
6444
6758
8142
8143.1
9320
9321.1
11002
11033
11416
14977
18303
18304