HFU HF Underground
Loggings => HF Mystery Signals => Topic started by: ~SIGINT~ on February 01, 2022, 0015 UTC
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UNID 6940.0 kHz (Centre Frequency) 00:00 UTC 01 FEBRUARY 2022
Note: UNID unconfirmed but is most likely part of the high-frequency trading (HFT) HF network experiment.
00:00 UTC - UNID UTE with 4.4 kHz wide signal and unknown data format. Good S+10 signal level. Ironically, this "experiment" is sitting right on the edge of a legitimate LINK 11 UTE on 6942 kHz and I can hear some of its product bleeding into the LINK 11 frequency bandpass.
00:40 UTC - UNID has faded out but can still be slightly heard in the background.
Related posts:
UNID 6985 (CF) 1310 UTC 09 JAN 2022
https://www.hfunderground.com/board/index.php/topic,91412.0.html (https://www.hfunderground.com/board/index.php/topic,91412.0.html)
UNID 6988 USB 2223 UTC 09 DEC 2021
https://www.hfunderground.com/board/index.php/topic,90040.0.html (https://www.hfunderground.com/board/index.php/topic,90040.0.html)
UNID 6965 (CF) 2200 UTC 09 DEC 2021
https://www.hfunderground.com/board/index.php/topic,90039.0.html (https://www.hfunderground.com/board/index.php/topic,90039.0.html)