[Elecraft] Poor CW note more testing and a question (rather long-ish...)

[Dave Cole]

I run my KPA500 with no ALC, and have from day 1.  Somewhere I have seen 
a recommendation, (I think by Elecraft), to not run ALC with the KPA500.

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 4/26/20 3:43 PM, Jim Brown wrote:
> On 4/26/2020 1:37 PM, Andy Durbin wrote:
> 
>  > I'm probably well out of my depth here but could this be caused by
>  > incorrectly configured ALC feedback from the KPA500 to the rig?
> 
> In general, ALC between an amp and a rig is a recipe for clicks and 
> splatter. Most authorities advise against using it. This is not new -- 
> it's in the manual for Ten Tec legal limit amps from the late '70s and 
> for every amp I've owned since.
> 
> If it is used, it should be set for well above normal output power so 
> that it only kicks in to reduce drive when something breaks in the 
> antenna system or the operator experiences brain cramp and transmits 
> into the wrong antenna. :) And good solid state amps are well enough 
> protected that they do that without ALC.
> 
> 73, Jim K9YCX
> 
> 
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