NDB Salthamn-Visby *OV :

 

a recording from 2016, made by a swedish online receiver (rb)
here is SAV-351 from Savonlinna, Finland, and OV-351 from Salthamn-Visby, Sweden, via an online receiver from Finland (rb, 2017)

 

nice QSL letter (Patrick Robic, 1999)
here a letter and PPC from Dieter Pohlmann (2007)

 

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Callsigns:
OV

 

Frequencies Morse Telegraphy:
351