Re: KPA 500: Does yours need time to warm up?

Posted by Don Wilhelm-4 on
URL: http://elecraft.85.s1.nabble.com/KPA-500-Does-yours-need-time-to-warm-up-tp6967951p6968050.html

Tom,

I believe the source of that situation is in the K3.  Run the TX gain
calibration to see if that helps.
There will always be some remnant of that behavior because of the way
the K3 controls power output, but the time for it to come up to full
power should be relatively short - a few seconds at most.

73,
Don W3FPR

On 11/6/2011 9:20 AM, tomb18 wrote:

> I noticed that my KPA500 does not always give the full power that it is set
> for.  For example, if I turn it on,put it in operate and then transmit my
> call sign (in a pile up), the first few transmits are lower in power (around
> 50-100 watts) and it takes 7 or 8 of these before the power gets to 500W.
> If I then continue for a while searching for another station, the same thing
> can occur.
>
> Has anyone seen the same thing?
> Thanks, Tom VA2FSQ
>
>
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