By Larry W2LJ From Wayne N6KR on QRP-L this morning:The latest KX2 field-test firmware allows power output to be set as high as 12 watts on 80 through 20 meters. (Max out is still 10 watts on 17-10 meters.) Supply voltage must be 12.8 V or higher on key-down. ~14 V … …read more
Source:: AmateurRadio.com