Boy, you whisper at this thing and it gets full 20W output. I was having some problems with overshoot on CW so I re-calibrated and the problem has gone away..... 0.20mW = 20W out on a Bird 43. 0.10mW gives about 15W out on the Bird 43. R22 power out is barely cracked, R10 set to indicated power. It works! 73s Jim, W4ATK K2/10, KLine