Hi Maybe some one can answer this. I set my k3 to 60 watts and measure 60 watts on my kpa500 meter with the amp in standby trnsmitting into a dummy load. When I switch to an antenna with a 3:1 swr the k3 still says 60 watts but the kpa500 now reads 80 watts with the amp still in standby. So which is correct or neither ? Thanks Richard