[Elecraft] Higher Power on Transverter bands??

[Roger Dixon]

I'm setting up a transverter band for 432MHz.

I have a switched dummy load feeding the transverter at around the ten watt
level.

However, on a two tone test the output on 28MHz is considerably cleaner at
13 watts (KPA100 in) than it is at 10 watts.

But - the transverter band set up will not let me go above 12 watts.  Is
there a work around other than using 28MHz straight and accepting the MHz
frequency readout is wrong?

Roger - G4BVY