[Elecraft] P3/K3 spurry

[Bill W2BLC]

I had problems similar to what you describe when I first got the P3. The 
story is simple: Use a mil-spec RF patch cable between the K3 and the 
P3. The long story: I tried grounding straps, redoing the station ground 
system, checking all antenna connections, was sent a couple of 
replacement cables - and in general wasted a lot of time over a period 
of a couple of weeks trying to rid my P3 of the odd signals it was 
displaying. Each replacement cable did improve or change the display. 
This clued me in that the cable had a direct effect - so I put on my own 
mil-spec cable - and immediately the P3 was fixed and remains to today.

Try replacing the cable with a known quality cable and see if that fixes 
your problem - before you jump through any additional hoops. Let me know 
if it does - I would be interested if my solution helps anyone. Use a 
mil-spec cable if possible - not something of unknown quality.

Bill K-Line