On Sat, 06 Dec 2008 23:46:56 +0000, David Robbins K1TTT wrote: >I really, REALLY hate intermittent problems like this A T/R relay going south seems like a possibility. I'd give it a go calling CQ on 80 or 160 during the day with full QSK. If it's a relay, that ought to make it stop being intermittent. A common failure mode for vacuum relays is stuck in TX. 73, Jim K9YC