no recordings available
here is the exact transmission schedule, as it worked on 306.4
kHz back in 1951, from german hydrographic institute
in 1990, Rudy van Dalen received a QSL for 296.5 kHz on a PPC
very detailed QSL letter
for 284.5 kHz from the collection of Patrick Robic (1999)
here is an official page for spanish lighthouses
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Callsigns:
MA
Frequencies Morse Telegraphy:
284.5
296.5
306.4