Many thanks to SWLing Post contributor, Carlos Latuff, who shares the following video of sounds he heard on HF. Carlos adds, “Are we in the Twilight Zone or Lost in Space? They sound like effects from a 60’s/70’s sci-fi movie!”
Those sounds are wild! The stuff of Star Wars.
My only guess is that it’s a form of OTH RADAR? I’m sure an SWLing Post reader will sort this out in short order! Please comment!
Yes, watch and record on your SDR (preferably with full I/Q capability) and then head over to SigIDWiki to see if it’s been uploaded already:
More likely these are power line monitoring signals. I’ve heard similar here in the US.
In fact there’s a wind power plant a few klicks from here.
If you have access to a SDR, it’s much easier to identify the signal to both see it and hear it!