[Elecraft] KPA500: How to troubleshoot "distorted audio"

[Jim Hooper]

Jack and all, 

Testing tomorrow will include testing on a dummy load. 

Yesterday I did experience faults on the KPA500 - several and then I stopped using it.   

Hoop




On May 3, 2015, at 16:01 , Jack Brindle <jackbrindle at me.com> wrote:

Jim;

Gary is right. What he means to tell you is that you should be looking for RF in the shack, getting into the K3.

If the KPA500 had gone non-linear, then you would be seeing all sorts of faults. You aren’t reporting any, so
most likely the problem is not in the KPA, but rather in something that cannot deal with the large amount of RF in the vicinity.
Did you change something recently, antenna, audio, cabling, something else in the shack?

- Jack Brindle, W6FB
Elecraft Engineering

> On May 3, 2015, at 3:21 PM, mcduffie at ag0n.net wrote:
> 
> 
>> My 3 month old KPA500 with my K3 and KAT500 had been giving me “outstanding audio� reports when first put into service. 
> 
> I'd bet it doesn't sound bad on a dummy load?
> 
> Gary
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