NDB Bottrop *BOT :

 

a recording from 2010 (ti25)

 

in 1983, Rudy van Dalen received a letter and a QSL-card for verification
Lars Lundström received this PPC in 2005
nice QSL card (Patrick Robic, 2008)

 

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Callsigns:
BOT

 

Frequencies Morse Telegraphy:
406.5