"Vinnie S." wrote in message

You might want to go directly to the battery. As far as the K40. It's
excellent,so long as you don't run power. I cooked mine. If you want to
run power, get the Wilson 1000. If you get 100W SSB, I would get the
Wilson 1000. You are close to max with the K40. I owned both, and thought
they were equally effective, except for the power handling. Vinnie S.

The K40 is rated to 500watts.