Thames Coastguard :
a recording from the collection of Rudy van Dalen (1991)
see this PPC from the files of Rudy van Dalen (1993)
a QSL for a selcal transmission (Patrick Robic, 2013)
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Frequencies Voice:
1647.5
1662.5
2182
2226
2231
Frequencies Radioteletype:
2187.5
Systems used:
DSC