Re: K3 Power Amp Shut Down Problem

Posted by Don Wilhelm-4 on
URL: http://elecraft.85.s1.nabble.com/K3-Power-Amp-Shut-Down-Problem-tp2959862p2962206.html

Don,

I don't have any evidence to indicate that you have another problem
lurking around.
I would have to defer to Wayne for speculation about why you did not see
the HI SWR message yet experienced the PA shutdown.  I do not know *all*
the details of the power shutdown mechanism (but high SWR is one
condition) and why no message was produced - Wayne would have to answer
that.

Can you reproduce it with the bad cable?  If so, perhaps additional data
can be derived.

73,
Don W3FPR

Don Nelson wrote:

> Don,
>
> Interesting that you have a message reporting high SWR. I have never
> seen it and I have had MANY chances to see if it indeed does get
> displayed when a high SWR causes the power amp to be shut down.
>
> Let's suppose for a moment that the mechanism that would display it did
> not get executed. What other mechanism in the firmware would shut down
> the power amp when I had the suspect cable connected and when the
> suspect cable is replaced with a presumed better cable, I have no power
> amp shut down? Am I to believe that there may be another problem? Any
> suggestions?
>
> Don, N0YE
>
>  
>

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