HFU HF Underground
Loggings => HF Beacons => Topic started by: zackers on January 12, 2014, 1912 UTC
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I've been sitting here listening to some sort of ditters on 13560.75 MHz on Sunday January 12 from about 1845Z to 1910Z (so far). In general there will be a string of 9 or 10 fast dits followed by a dit approximately every 1.3 seconds for several minutes, then two rapid dits and a long pause, then starting up again. There have been variations where seemingly random groups of fast dits in groups of 4 to 16 were sent. For a while there was another ditter about 50 Hz lower in frequency than the main one, which was only active for a couple minutes. It seemed to follow a similar pattern.
The frequency of the ditter seemed to slowly drift up and down over a few Hz range.
Right now (1910Z) it's been silent for several minutes.
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23:50 UTC 06 DEC 2021 - Receiving "ditters" on 13560.700 kHz CW with similar patterns as described in the original post.
00:04 UTC - Signal off air.
00:10 UTC - Observing a similar signal on 13559.990 kHz CW.
RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada
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These are probably Part 15 HiFer ops.
73's