[Elecraft] kpa100 reciever

Thu Jun 12 17:59:02 2003

----- Original Message ----- 
From: "Andrey Stoev" <[email protected]>
To: "John Cooper" <[email protected]>
Sent: Thursday, June 12, 2003 5:53 PM
Subject: Re: [Elecraft] kpa100 reciever


> Is it possible that turning on the 100w PA after reaching 11W, to cause
drop
> or increase in the 8V line and this will activate the AGC? Your +8V
voltage
> might be just on the treshold and a minimal influence by the PA circuit
can
> cause the AGC to kick in. I dont have the shematics with me but might be
> worth, deactivating the AGC and checking it again.
> If the noise level does not change with the AGC off, then you should be
able
> to adjust the AGC behavour. Look in the manual for AGC alignment.
>
> 73s
> Andrey
> KB1FZA
>
> ----- Original Message ----- 
> From: "John Cooper" <[email protected]>
> To: <[email protected]>
> Sent: Thursday, June 12, 2003 4:45 PM
> Subject: [Elecraft] kpa100 reciever
>
>
> i plugged in the power on my k2/100.  no antenna or ground connected.
power
> knob all the way counter clockwise. af and rf turned up with preamp on.
> regular noise (hiss) can be heard.  when i rotate the power knob up as
soon
> as it hits 11 watts and activates the amp my noise level increases about
as
> much as when you turn on  the preamp in the first place.  is this normal?
> turning the power back down below 11watts decreases background noise.
>
>
> john wt5y
>
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