[Boatanchors] Computer noise

[Mark Foltarz]

A couple of years ago I experienced and odd phenomenon that really bothered me.
There was a random burst of noise on the hf bands. It sounded as annoying as
the russian woodpecker. It came and went.

I finally traced it to a computer mouse! Apparently the optical mouse on this
desktop computer was still on even though the computer was "off." And by "off"
I mean it was plugged in and not running although there was apparently stanby
power going to certain parts of the computer.

But everytime the mouse , or even the table, was bumped enough to cause the
mouse to "wake up." When this would happen, hf would be virtually useless in
the shack.  

It took  a long time before I finally figured it out but what a relief when
that little mystery ended.

de KA4JVY

Mark


--- Dave Maples <dsmaples at comcast.net> wrote:

> All: I have battled this several times over the past few weeks.  Best thing
> I have found yet is the Radio Snack split cores.  I will take one and wind
> as many turns of the offending cable as I can around the split core, and
> then reassemble it.  Two of them removed the noise from a cordless phone
> base station.  One removed noise from an LCD monitor.
> 
> It's going to cost me a bit, but I'm eventually going to get both ends of
> every computer, entertainment equipment, and telephone lead I have.
> 
> My next move is to sample some of the same product from Mouser (a LOT
> cheaper).
> 
> All suggestions here welcome!
> 
> 
> Dave WB4FUR
> 
> 
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> ** List Administrator - Duane Fischer, W8DBF/W9WZE **   
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> 
> 


please add wisdom correction heroes


 
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