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

[Bob McGraw K4TAX]

I do use ALC between my KPA500 and my K3S.   I do find that the ALC 
setup and calibration is critical for correct operation.  As to the 
effects of it being set incorrectly, I can't say.   I do know it must be 
done for every band and the amp ALC will be displayed on my K3S.   The 
amp ALC THR value on my amp runs from 145 to 120 depending on band.   
One value does not work for all bands.

73

Bob, K4TAX



On 4/26/2020 3:37 PM, Andy Durbin wrote:
> "I got the report that my CW sounds just fine until the amp is in line. Then it is described as "some kind of artifact... like a bell sound... like a delay." This is consistent with the other report I had been getting of a "ringing, bell-like" note to my CW. This is most apparent at 30 wpm, as I would be running in a contest."
>
> 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?   That should be easy to test by simply disconnecting the AUX cables and running the CW test again.
>
> 73,
> Andy, k3wyc
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