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

Posted by k6dgw on Jun 05, 2012; 9:35pm
URL: http://elecraft.85.s1.nabble.com/KPA-500-Does-yours-need-time-to-warm-up-tp6967951p7557174.html

I don't recall seeing an answer go by.  I don't observe this anomaly,
however I'm pretty much a CW operator.  I do notice that, if I've had
the power set to just light up the 500W LED and then turn the entire rig
off, when I turn it back on, the 550W LED will light up when I first
touch the paddle.  Before I get more than a letter or two out, it's back
to 500W.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

On 6/5/2012 2:00 PM, WE5ST wrote:

> Was there a satisfactory answer given for this issue? I don't notice the
> problem of limited power on 10-20 meters but on 40 it shows up. Several
> "kick starts" are required to see full power then it's smooth sailing.
> I see adequate ALC and am driving the amp with ~25 watts from my K3. Kicking
> up K3 output or mic gain doesn't seem to matter in the first few
> transmissions.
>
> '
> tomb18 wrote
>>
>> ......, 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
>>
>
>
> Thanks!
> Jack - WE5ST
>
> -----
> Jack - WE5ST
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