NDB Coleman Army Air Force Base, Mannheim-Sandhofen *HDM :

 

a recording of *HDM-334 from 2004 (rb)

Dieter Pohlmann received a QSL by ppc in 2009
see this picture from the files of Michael Oexner (2010)

 

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

 

Callsigns:
HDM

 

Frequencies Morse Telegraphy:
334
492