This may be an easy one, but on transmit when you key on AM it immediately goes to an ERR 4. On SSB it takes strong audio to get that same error. Don't have a manual, I'm guessing SWR?? But the rig before that didn't have any issues (not to say something couldn't have changed). I'll get around to checking the swr in the next day or so, but thought that someone may have run into this before - Tnx!