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Loggings => HF Mystery Signals => Topic started by: saint on February 01, 2024, 0010 UTC

Title: 181059 MHz USB Unknown signal
Post by: saint on February 01, 2024, 0010 UTC

181059 MHz USB
I have run across this signal several times and was wondering if I can use Multipsk to decode the signal, I have tried but can't seem to get it to decode. Any information appreciated.

link to YouTube video,
https://youtu.be/vA28jBDnRJE

Steve

Title: Re: 181059 MHz USB Unknown signal
Post by: northern_dxer on June 26, 2024, 1749 UTC

Quote from: saint on February 01, 2024, 0010 UTC

181059 MHz USB
I have run across this signal several times and was wondering if I can use Multipsk to decode the signal, I have tried but can't seem to get it to decode. Any information appreciated.

link to YouTube video,
https://youtu.be/vA28jBDnRJE

Steve

Sounds like VARA HF modes, see:

https://www.sigidwiki.com/wiki/VARA_HF

Title: Re: 181059 MHz USB Unknown signal
Post by: BoomboxDX on July 25, 2024, 0046 UTC

So, this is 18105.9 kHz? That would be in the 17 Meter Ham Band.

I've heard similar bubbly noises on the HF ham bands before, usually 30-50 kHz higher than the FT8 frequencies.

I'm also curious as to what the signals actually are. Some digital ham mode, obviously....