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

2008-06-28 Thread 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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[Elecraft] K3 - Sensitivity drop between Low and Hi power

2008-06-27 Thread max iw0gxy

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. 

Did someone noted the same behavior? 

Max IW0GXY

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

2008-06-27 Thread Vic K2VCO

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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