[PCR-1000] Ground Hum

Sun, 10 Feb 2002 23:47:16 -0600

I had a noise source a while back I couldn't locate.  Later was able to
trace it down to an extension cable I was using from the video card to the
monitor.  Believe me, I ran around in circles trying to ground this, ground
that... everything I could think of until I found the problem.  Good luck in
tracking it down, you'll get it figured out..

Robert Crawford - n0kxu

----- Original Message -----
From: "tvsjr" <[email protected]>
To: <[email protected]>; <[email protected]>
Sent: Sunday, February 10, 2002 9:34 PM
Subject: Re: [PCR-1000] Ground Hum

> Floating grounds can be a potentially hazardous condition to electronic
> components. I managed to destroy an Icom CT-17 years back because of
> floating grounds - needless to say, my equipment is now well-grounded, to
> the same ground.
>
> Terry
>
> At 03:26 PM 02/10/2002 -0500, red wrote:
> >Sounds like your computer is grounded to the electrical box and/or
> >cold water pipe, and your PCR1000 is on a ground of its own.
> >When this happends the 2 grounds will create a flow of electrons
> >between them. Try connecting a ground wire from your cold water pipe
> >to your PCR1000 ground outside.
> >
> >Ted Gurley wrote:
> > >
> > > I have a 8ft. ground rod with a 10 foot 8 gage copper wire leading to
the
> > > PCR1000.  When conncected, I hear a 60 HZ hum.
> > >
> > > Ideas?
> > >
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