HFU HF Underground
Loggings => 10/11 meters => Topic started by: R4002 on November 12, 2026, 1234 UTC
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27450kHz 27,450 kHz 27,445 kHz 27,455 kHz FM
FM carrier signal, actually, signals - on 27.45 MHz, various data signals sent, some are obviously paging pager signals, other appear to be more narrowband MFSK signals, could be alarm data links, wireless alarm systems and on-site on-premises paging systems.
Received via the G8JNJ SDR receiver located in the South West UK on 12.11.2026 November 12th, 2026
12 November 2026
27 MHz band opening indicator 27 MHz band 27.41 MHz 27410 kHz 27.54 MHz 27,540 kHz band allocation frequency allocations spectrum allocation