Glancing at Spectrum Analyser late this afternoon there were several signals including one strong one consisting of a series of dashes on 137.233khz with large sidebands 300Hz either side. Who or wha
Hi Hugh, I can see signals on my wideband grabber window since a few weeks or longer now, which are just above the EU DX window and look like it could be QRSS/DFCW 60/90. No identification yet but th