NDB Spessart *PSA :

 

a recording from 1985 (rb)

 

nice QSL card from 1999 (Patrick Robic)
as an en-route NDB, this station is located within the forest and mountain region 'Spessart' between Frankfurt and Würzburg
here some detail from this NDB (both photographs: rb, 2013)

 

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Callsigns:
PSA

 

Frequencies Morse Telegraphy:
370