[Elecraft] Computer Noise ruining 20 & 30m

[Alan D. Wilcox]

SOLVED!
Just replaced the 400w supply with a 300w that I had in the junk box. 
Both foreign cheap
units, but that's all the local PC shops seem to carry (at least at my 
QTH). The replacement
is nicely quiet ... and a lot easier fix than what I was dreading!

Now that I can hear the radio properly, back to doing the remote audio 
with HRD.

Thanks for the help!
Alan
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Alan D. Wilcox wrote:
> Hello,
> I gave away the feeble old PC I had by my radio equipment and replaced 
> it with a newer one ...
>
> Now I have S9+ noise wiping out 20 and 30 meters.
>
> Using same keyboard, mouse, monitor; just the PC in a new case. 
> Evidently it has a
> noisy switcher supply in it. Tried 110V in-line filter, also different 
> 110V house circuit,
> but still have noise. Grounds don't help. Don't happen to have a box 
> of toroids for chokes.
>
> I've got an old PC supply or two in the junk box, but hoping something 
> else might fix.
>
> Any thoughts on an easy fix?
>
> Thanks,
> Alan
>
> Alan D. Wilcox, W3DVX
> 570-321-1516
> http://WilcoxEngineering.com
> Williamsport, PA 17701