> Yes that would work wonderful. I use a RS-232 signal into my exciter now to > key the thing. A TTL 1 or 0 would be easier yet. Right, you speak RS232 to the keyer to program it and it keys the TX with a CMOS 0-5V output. CMOS outputs being a superset of TTL shouldn't present much of a problem, right? Does anyone want anything but this? Cheers, David