"Another thing I noticed is that I used to get 3.5W out on 30m and 3W on 40 and 2.5 on 20 and now I get 2.5W out on 30 and 1.82W on the other bands, measured with the DL1. Either my LPF wasn't up to snuff in the past, or I have some other problem. Leigh/WA5ZNU" Keep us posted on your findings...I have a similar issue. LL/K3ESE