>I learned procedure 50-some years ago on Navy destroyers, and AR was the > equivalent of "out". > > But this is AMATEUR radio, and there's no Navy Chief standing over my > shoulder, so I just have fun and don't worry too much how some other guy > signs off. > Again, I'm talking about a continual use during a QSO of sending AR ahead of the call signs, not when signing off. 73, Roy K6XK