I presume this has been discussed before and I missed it. What is the origin of the quite strong, wide RTTY-like signal on 474.0kHz? It appears to be commercial as it is on continuously, and it comes
RMP / Kaliningrad Naval Base ? Listen for morse ID sent by FSK at beginning and end of transmissions. BR Paul-Henrik, OH1LSQ I presume this has been discussed before and I missed it. What is the orig
Hi Mike, LF, I can't say that I have seen that signal but I will certainly look for it. I have a similar signal on 136.160kHz at the moment which on this occasion started at 1701utc on 2/06/2014. Als
Mike, LF, Further to my previous reply. If you look at my grabber & click the 472-479kHz image you should be able to link to a recent history. You will see the signal on my grabber saves during the e