Brian Howie GM4DIJ reports: “I’ve come across a high-speed RTTY-sounding signal on the Medium Wave Band on 570kHz . I can hear it on various Kiwi SDRs from Ireland to Poland, so it’s not a birdie.
I got a reply from ndblist: “It’s been on 570kHz since early 2022 and as far as I can determine is likely Russian Baltic Fleet in Kaliningrad. Image below is of TDoA location. (By the way this was covered in articles in Medium Wave News – where this image was first published). It must be running a fair bit of poke!
