a recording of the CQ call from CUB (rb, 1974)
from the collection of Frank Schüttig: QSL letter from 1974
------------------------------------------------------------
Callsigns:
CUB
Frequencies Voice:
1663.5
1686
2182
2483
2810
2843
4432
8755
8756.1
26166
Frequencies Morse Telegraphy:
444
500
512
524.5
8461