All this talk about TX IMD and monitoring voltage, etc got me to check out my K3. I usually run @ 50w into small amp and I see 13.7V on rcv and 11.5 while xmit. If I run the power up to 100w, I see 13.7 and 10.8; do I have a problem? I am using an unmetered Astron RS-35 into our standard 220v house supply. 73 Tom CX7TT