There is a very big signal on 137.560 in Stuttgart (Germany) UDNRATNBTUNBRNB..... The DK7FC-Grabber also shows this anyboby knows something about this ?? Diese E-Mail wurde aus dem Sicherheitsverbund
From last TX Psk map https://www.pskreporter.info/pskmapn.html TF3HZ 2200m OPERA 2439 kms 20:03:00 SV8RV-1 2200m OPERA 1621 kms 19:27:57 G0KTN 2200m OPERA 813 kms 20:02:58 F6CNI 2200m OPERA 389 kms 1
Ah, By the qrg , that will be a Opera data mode transmission , which will run for 32 mins sending 256 data bits , using on-off keying , would seem Stefan is sending at the moment With a change of qrg