HFU HF Underground

Loggings => HF Mystery Signals => Topic started by: Dr. Amp on October 22, 2024, 1809 UTC

Title: giant ~50kHz wide signal centered on 13.936
Post by: Dr. Amp on October 22, 2024, 1809 UTC

https://imgur.com/a/cW163rA (https://imgur.com/a/cW163rA)

There doesn't seem to be any modulation, just a huge number of discrete carriers.  Before it popped up here, it was up somewhere around 14.800.

EDIT: It just moved up to 14.511.  Whatever it is, it seems to be avoiding the ham bands and the broadcast bands.

Title: Re: giant ~50kHz wide signal centered on 13.936
Post by: Token on October 28, 2024, 2340 UTC

This might be an HFT transmission, they have one that looks something like that.  Or it might be a radar, the PLUTO radar was in that frequency range about that time on that date.  The waterfall image is not detailed or clear enough to be sure of which, but I suspect HFT.  An audio recording would clear that up.

T!