[Elecraft] K3 - Sensitivity drop between Low and Hi power

[max iw0gxy]

Seems I've found the problem but I should wait till monday to try to fix it.
As suggested by Gary at Elecraft I've checked some components and I found Q9
on the KPA3 board broken.
I think Q9 is both responsible of the power instability I've found and the
drop in a S point when KPA3 was enabled.
I'll let the list know.

Max IW0GXY   


Vic K2VCO wrote:
> 
> max iw0gxy wrote:
>> Hi all, 
>> I connected the XG2 signal generator to my K3 and I've injected 50microV
>> into the antenna. I have the standard S9 but when I rise the power to 13
>> and
>> up signal drop down to S8. If I turn the knob to 12W or less signal turn
>> back to S9. 
>> I've noted this behavior on signals on air but to be sure I've used my
>> signal generator. 
> 
> I do not see any change in received signal levels here when switching 
> between low and high power.
> -- 
> 73,
> Vic, K2VCO
> Fresno CA
> http://www.qsl.net/k2vco
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