[Elecraft] Spurious signal after k2 click mod

[Vic Rosenthal]

Mario Lorenz wrote:

> I recently had the chance to take a quick look of my  K2 on a spectrum
> analyzer, and I have seen similar spurious emissions there, all approx
> in the -40 dB range, in some cases at about +- 600Hz, in some cases on
> other places. 

This sounds like what I have.
  	
> Vic, have you got the counter probe still hooked up? I vaguely remember
> Elecraft in their KPA100 manual suggested that it better should
> be removed, because leaving it installed could produce spurious emissions
> in some case.

No, it's out.  That spur is (at least) the third harmonic of the 4.9 MHz 
signal which appears near 15 MHz when operating on 20 meters; I have 
verified that taking the probe out reduces it very significantly.

-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco