listen here to HOS as received
in 2011 close to the city of Hamburg (rb)
see the QSL-card for *HAM-339
from the collection of Dieter Pohlmann, received in 2000
a new callsign (*HOS-339), a new card... (Dieter Pohlmann, 2007)
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Callsigns:
HAM
HOS
Frequencies Morse Telegraphy:
339