HFU HF Underground

Loggings => HF Mystery Signals => Topic started by: WPE0ERM on July 30, 2022, 1604 UTC

Title: 7058 +/- kHz WB digital or jammer 2134Z 072922
Post by: WPE0ERM on July 30, 2022, 1604 UTC

Tuned across this monster buzzsaw last night after seeing it on my IC-7300 waterfall down the band from the FT8 watering hole.

It was S9+ here in West Central FL. It looked to be about 3 kHz wide, composed of many individual carriers a few tens of Hz apart. This can be seen on a baseband audio waterfall such as in the WSJT-X monitor. Possibly a digi-fone mode?

First thought it was on 7058, a whole kHz raster, but careful tuning made it seem perhaps more centered in passband on USB Data dial setting of 7058.5 kHz. 

First audio clip starts with a 7058 setting, then I tuned around a bit.

https://voca.ro/1nGgscFjPzsi

Second audio clip is from dial set only 7058.5 kHz USB.

https://voca.ro/1bt1vMC9q6eq

Title: Re: UNID 7060 WB Digital 2134 UTC 29 JUL 2022
Post by: ~SIGINT~ on July 31, 2022, 0150 UTC

Have a look at my thread below. It looks like this presumed Rusian operator has moved from 7000 MHz to 7060 MHz.

UNID 7000 UNID Mode 0117 UTC 28 JUL 2022
https://www.hfunderground.com/board/index.php/topic,100021.0.html (https://www.hfunderground.com/board/index.php/topic,100021.0.html)

Here is a look at it from the University of Twente Wide-band WebSDR.

(http://www.milspec.ca/board/img/2022-07-30_214406.png)

Title: Re: 7058 +/- kHz WB digital or jammer 2134Z 072922
Post by: WPE0ERM on August 05, 2022, 0341 UTC

Its there again tonight almost as loud here in FL. Took the time to run a TDoA on KiwiSDR's and it pointed to it being French Navy station 6WW near Dakar Senegal. Google search on that call sign brought up some You Tube posts with digi signals that sound similar.