Hello, I always wondered if the cpu% shown on the screen was TOTAL or Program. It is TOTAL. I am running HDSDR for the IC-7100 as a panadapter, and it agrees with the Thetis cpu% as the total. HDSDR is showing around 7% just for it. So, I really do not know what the cpu percentage for Thetis is. I have seen the numbers go as low as 18%... 73 Glen K4KV