a recording from 2009 (rb)
a PPC from 1993... (Frank Schüttig)
...and one from 1999 (Patrick Robic)
Dieter Pohlmann received this QSL-card in 2004
a look at the station, on a hill close to famous Heidelberg (rb,
2010)
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Callsigns:
NKR
Frequencies Morse Telegraphy:
292