PO-277 as recorded via a finnish
online receiver (rb, 2011)
no pictures of QSLs or other info available
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Callsigns:
ND
PO
Frequencies Morse Telegraphy:
277
NDB Sankt Petersburg - Pulkovo (*PO) :
no pictures of QSLs or other info available
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Callsigns:
ND
PO
Frequencies Morse Telegraphy:
277