I heard the first K3 used on 600 meters tonight. Bob W1XP was using his K3 driving a homebrew 100w amp into a Inverted L vertical running CW tonight. I was listening to his signal a bit over 1000 miles away in Minnesota. The K3 sounded great!!! Bob's 600m callsign is WD2XSH/37 -- Mike WE0H WD2XSH/16