NDB Düsseldorf *DY :

 

a recording from 2009 (rb)

 

one of the friendly QSL-cards from the civil aviation administration (Rudy van Dalen)
different version of the official QSL (Dieter Pohlmann, 2000)

 

------------------------------------------------------------

 

Callsigns:
DY

 

Frequencies Morse Telegraphy:
284.5