Group, Thanks for the great support and the flames to motivate. Turns out it was D39 installed backwards. Which was #6 on the list from Gary at Elecraft. I never would have seen that coming. The other symtom of reduced volume was also corrected. Before and after spectrograms are on: http://agnew.us/k2/ Thx again 73 Dwight N4GSD Never 4Get Selenium Diodes