NDB Köln-Bonn *LW :

 

a recording from 2009 (rb)

 

this card was sent in the 1980's to Rudy van Dalen
see this prepared QSL from Dieter Pohlmann, 2000
in 2019, on the occasion of a visit with much time in between, I visited this NDB (rb)

 

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Callsigns:
LW

 

Frequencies Morse Telegraphy:
300.5