NMN Boston MA marine warning bulletins decode NAVTEX 8416.5 kHz Shortwave
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OfficialSWLchannel
About this video
“NMN Boston MA marine warning bulletins decode NAVTEX 8416.5 kHz Shortwave” is a ham radio video from the YouTube channel OfficialSWLchannel, published on June 15, 2026. OfficialSWLchannel covers Antennas, SDR and Reviews. The directory tracks 294 videos from this channel.