NDB Berlin-Tegel *RW :

 

a recording from 2014 (rb)

 

here a PPC for reception confirmation from the old days of divided Berlin under 4 occupation forces (rb, 1985)
nice QSL card (Patrick Robic, 1999)
take a look at the antenna and transmitter house (rb, 2014)

 

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Callsigns:
RW

 

Frequencies Morse Telegraphy:
392
448