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
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