I don't believe anything is common about anything I sent in my post. Don't know what the heck is going on, and was hoping someone could clue me in.
First thing I did before sending the post was to check QRZ, HamQTH, & Buckmaster/Hamcall for the call BE4CON. If that's actually a call in China, it's not listed at any of those. Just checked DX Summit and the call has never been spotted. Got four results with DX Heat, but that was to spot beacons. Guess they used a 4 in place of an A so the spotting network would accept it as a call sign. Checked my ALL.txt file, and found no transmissions of BE4CON other than the same op who was sending on Jul 17 between 2156Z & 2207Z.
As for calling one's self, I've had that to happen when calling a station several times. Suddenly, I'm alerted someone is calling me, and see that red line. But it's K4HB replying to K4HB. Guess it's some flaw in the system that causes it. Maybe if I clicked on that red line, I would transmit calling myself, never tried it and never will. I thought maybe that's what happened to the op, and he had runaway watchdog set high. But after he came back nearly 10 hours later with the same thing, and was calling BE4CON, I'm completely clueless of what's happening.
<edit> Thanks for the replies, there's some possibilities mentioned here. It's amazing what some will do.