[Elecraft] KX3: Intermittent loss of RX sensitivity

[Scott Manthe]

I've noticed that my KX3 occasionally exhibits a loss of RX sensitivity. 
It seems to occur most often on 30 meters and possibly 40 meters, and 
it's temporarily cured by sending a dit or two. I picked the KX3 up 
used, and it needed the VFO B encoder replaced, which I did myself with 
the help of some advice from Lyle, Roman and Elecraft support 
(Thanks!!!). This obviously required the disassembly of the KX3. I'm not 
sure if the sensitivity problem is related to this or not. The encoder 
works fine. This seems like a "sticky relay" issue. Has anyone 
experienced this issue and have any suggestions on the cause and a cure?

73,
Scott N9AA