With the K4 power (drive) low enough, the amp can make 200W. Maybe not efficiently. (yes, 200W is only 3db more than 100W) If FT8 RX level at -24, then 3db may be important ?? steve WB3LGC On 1/12/24 7:52 PM, Ken WA8JXM wrote: > Why do you have the amplifier running? 30m is as restricted power band.