a recording from 1985 of
their 2 MHz signal crossing the atlantic (rb)
a PPC from 1985, unfortunately without technical details (rb)
very informative letter from the files of Mauro Giroletti (2009)
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Callsigns:
VCO
Frequencies Voice:
2103.5
2182
2530
2582
2598
2749
Frequencies Morse Telegraphy:
464
489
500
Frequencies Radioteletype:
490
518
Frequencies FAX Picture Transmissions:
4416
6915.1
Systems used:
SITOR
120 rpm