KC0DD> just got a used k2 with the atu in it !! sure is a promlem for me i set my power at 5 watts. even into the dummy load it shows 9.9 for some odd reason . my other rigs have internal atus and work fine Maybe you have the wrong antenna selected (ant1 vs ant2) - check the "ANT 1/2" button and make sure it it corresponds to the right antenna