BLIND-HAMS Archives

For blind ham radio operators

BLIND-HAMS@LISTSERV.ICORS.ORG

Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Russ Kiehne <[log in to unmask]>
Reply To:
Blind-Hams For blind ham radio operators <[log in to unmask]>
Date:
Sat, 20 Apr 2002 09:41:15 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (92 lines)
Yes, I did get your email.  He's using Dectalk Access32.
----- Original Message -----
From: "Kevin Nathan" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, April 20, 2002 9:29 AM
Subject: Re: Removing computer interference from radio


> Hi Russ,
>
> Did you get my email about the power supply?  Also, is he using eloquence
or
> a hardware synth?
>
> thanks and 73.
> Kevin, K7RX :)
> ----- Original Message -----
> From: "Russ Kiehne" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, April 20, 2002 09:02
> Subject: Re: Removing computer interference from radio
>
>
> > Hi Lou,
> >
> > We tried turning off the monitor and the result was the same.  The next
> > thing to try is ferrite cores on the cables.  The only things hooked up
to
> > the computer are: a montor, keyboard, mouse and network cables.
> >
> > Russ
> > ----- Original Message -----
> > From: "Louis Kim Kline" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Saturday, April 20, 2002 7:48 AM
> > Subject: Re: Removing computer interference from radio
> >
> >
> > > Hi Russ.
> > >
> > > There are numerous sources of interference that can be generated from
a
> > > computer.  A good place to start is to turn the monitor off and see if
> the
> > > noise goes away.  Some monitors generate a lot of noise.  Sometimes
> > > changing the video signal cable can make a big difference.  I
> experienced
> > > that with a NEC monitor that I used to have.  You can try using
ferrite
> > > cores on the cables coming out of the computer, although I've had
rather
> > > dubious results.
> > >
> > > I also had a computer that had a rather noisy SCSI controller, and a
> leaky
> > > SCSI cable.  Changing the SCSI cable went a long way towards reducing
> the
> > > noise output.
> > >
> > > I have found that sometimes the switching supply in the computer can
> > > generate a lot of crud also.  If this is happening, there isn't much
you
> > > can do about it short of replacing the supply with a better one.  The
> > > bottom line is, this probably won't be easy to knock out.
> > >
> > >
> > > Quiet computers are hard to find.  I usually hang on to them with a
> death
> > > grip when I find one.  I cannot get this one that I am typing on
> anywhere
> > > near a radio or television because it has one of those noisy switching
> > > supplies.
> > > 73 and good luck, de Lou K2LKK
> > >
> > >
> > >
> > > At 08:30 AM 4/19/02 -0700, you wrote:
> > > >Does anyone have any ideas on how to remove computer interference
from
> > the
> > > >radio?
> > > >
> > > >Russ
> > >
> > > Louis (Kim) Kline, A.R.S.  K2LKK
> > > e-mail:  [log in to unmask]
> > > Work e-mail:  [log in to unmask]
> > > Work Tel.  (585) 697-5753
> > >
> >
>

ATOM RSS1 RSS2