NDB Tomaszow-Mazowiecki 'Porter' *NP :
this reception of NP-437 was made in 2012 (rb)
listen carefully: you can hear *PE-438, *B-438, and *NP-437 (rb via web-sdr, 2021)
no pictures of QSLs or other info available
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Callsigns:
NP
P
Frequencies Morse Telegraphy:
437.