I have a yaesu ys-60 power meter. When I tune up my amp I tune it for maximum power which I know is around 700 watts. I move down the band where my Antenna is not as resonant and do the same thing but the meter tells me I’m putting out over a KW. Which I know is not true for this fl-2100b. Why does it do this? I am not using a tuner. I do have a separate tuner but was told no point in running the tuner just run that 2100b direct. I am wondering if he is wrong and I should be using the tuner?