[Elecraft] [K2] K2's frequency counter cable with KPA100 installed

[Vic K2VCO]

The third harmonic of the BFO appears around 14.4 MHz, if I'm not mistaken. I did notice 
an increase in the level of this spurious output on 20 meters when the cable was inserted. 
I didn't measure it or anything -- but it was louder.

Someone with appropriate test equipment might be persuaded to measure it, but of course it 
might vary from K2 to K2.

On 1/26/2011 2:44 PM, K1FFX wrote:
>
> Page 55 of the KPA100 manual recommends removing the K2's frequency counter
> cable
> when the KPA100 is installed, since leaving the cable in "may" cause an
> increase in the
> amplitude of spurious signals.
>
> Since the manual says "may" and I'd really like to leave the cable in, what
> are people's
> experience with this?  Do you hear a notice-able increase in spurious signal
> amplitude?
>
> If the answer really is "yes, remove the cable", is there any other way,
> short of
> disassembling the K2/100 and inserting the cable, to align the K2's filters?
>
> Thanks!
>
> - Bruce
>
>
> -----
> Bruce Rosen
> K1FFX
>

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