[Elecraft] harsh output note?

[Christopher A. Kantarjiev]

Rick Tavan N6XI wrote:
> Have you rearranged your station or added any equipment lately? Your 
> problem sounds somewhat like the magnetic flux interference that some 
> K2s experience in proximity with large power transformers. It can be 
> quite dramatic if you transmit while moving the radio in and out of the 
> magnetic field. Just transposing the positions of the K2 and an 
> amplifier can introduce it. There is a shielding fix available from 
> Elecraft if in fact this is your problem.
> 

This was exactly it! Removing the amp completely restored the note to the purity 
I have come to expect. Rearranging my desk so that I can place the amp on the 
right side of the K2 instead of the left kept it that way.

This is the HFpacker/HFprojects 35W amp; it's got a voltage doubling switching 
supply inside it, and that seems to be the source of the interference.

73 de chris K6DBG