[Elecraft] K3 power output instability

[Arliss]

Here's follow-up on the power instability problem I have been 
experiencing with one of my K3s:

Although I already had the latest firmware loaded in the K3, I 
reloaded the firmware.  I also ran the VCO MD calibration and 
checked the 3 mounting screws on the bottom of the K3, as someone 
had suggested.  I also ran the parameter initialization.

After all of the above, I again ran the TX gain calibration and 
once again it failed (for both low/high power).  I have contacted 
Elecraft support and am waiting to hear from them.

73,  Arliss