Hello

Further to my previous read long before this one!

I bet the network cables are acting as superb radiators of the crud from
your other machine.

try disconnecting from the network and see what happens.

If this is the source, then two things.

1.  coil up the excess of network cable (or the rj45 cable) into a loop
about 9 inches diameter and tying it with tape, ties or whatever else.

2.  Put ferrite beads onto it near the computer and near the network
socket.

If you use the clamp-on type, make sure that you tighten them fully as
if the loop is not complete round the cable you are wasting your time
doing it at all.

David

I think you wrote  below <[log in to unmask]>,
Russ Kiehne <[log in to unmask]> writes
>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
>>

David W Wood
[log in to unmask]