UNID 10138 2355-0010 AM 1 Feb 2022

[Todd KC0IVX]

Strange buzz-hum:  About 12 seconds on and 17 seconds off continuously repeating.  Two tones, one low and one mid tone, aharmonic.  A kind of grinding sound similar to a low frequency buzz saw or a slow tooth drill or wind blowing through an underground tunnel (spooky).  Heard on my Tecsun S-2000  in Colorado with its internal antenna.  Exterior antenna did not improve sound.  On USB and LSB the the sound had a higher tonality but not substantially improved.  Will try to get an audio of it, if it continues.

[Erik Mattson]

0024 - Here too. That is weird. Kinda sounds like a slowed down FT8. Sorta. The shifting tones.

Cthulhu...breathing.

 https://www.dropbox.com/s/s4rckodyp2ih83h/SDRuno_20220201_0030utc_10138000HZ.wav?dl=0

Probably something FT8 like. Or mind-control tones. Something like that.

[Todd KC0IVX]

The sound has definitely changed from yesterday:  less null, more tones.  It has 4-5 tones not two together.

[~SIGINT~]

15: 14 UTC 02 FEB 2022 - This is the 30 metre FT8 portion of the Amateur band. Technically, you should be tuning to 10136.0 kHz USB and can use software such as WSJT-X to decode. I do not hear anything abnormal in my location.

RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada