NDB Satenäs *SG :
PPC and an interesting picture of what it is all about (Patrick Robic, 1999)
this friendly letter gives 'QSL' to both NDBs from Satenäs Air Force Base, *LG-309 and *SG-409 (Rudolf Renkwitz, 2005)
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Callsigns:
SG
Frequencies Morse Telegraphy:
409