HFU HF Underground
Loggings => Other => Topic started by: Matambale on October 31, 2019, 2013 UTC
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CW at 1 Hz on 6779.9 kHz
Signal 10/S9
20 beeps, last beep elongated, pause for a few seconds, repeat.
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6.779.5MHz AXA-210 Australian Defence Force, Defence Force Spectrum department, Canberra ACT, military time signal variant.
Power and emission mode unknown, but very widely heard, located on eastern coast of Australia at unknown military establishment.
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In case anyone cares, they're still there. 6779 kHz USB, loud and clear in Goodyear, Arizona.
I made a 4-minute recording and put it up on SoundCloud.
https://soundcloud.com/user-469017586/10-nov-2020-02h45m04sz-6779-mhz-usb-axa-210-australian-defence-force
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Still being heard here in Seattle, WA USA at S7.