a recording of bad quality:
morse signals from FFP3 (rb, 1973)
unfortunately without technical details: a QSL letter from FFP
(rb, 1973)
here a QSL letter from Rudy van Dalen, 1983
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Callsigns:
FFP
Frequencies Voice:
2182
2545
Frequencies Morse Telegraphy:
435
500
8675
12831