no recordings available
here is the exact transmission schedule, as it worked on 312.5
kHz back in 1951, from german hydrographic institute
see this self-made QSL from the collection of Rudy van Dalen,
received on 310,3 kHz (1987)
here is an official page for spanish lighthouses
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Callsigns:
VI
Frequencies Morse Telegraphy:
290.5
300.5
310.3
312.5