Practical advice needed: What do I do now?

Bob DeMattia
Sat Oct 2 17:59:52 EDT 2010

It might make it better, it might make it worse.
But if moving around changes it, then this is one
way to confirm it is radiating.


On Sat, Oct 2, 2010 at 12:02 AM, A Joseph Ross <> wrote:

> On 10/1/2010 10:31 AM, Bob DeMattia wrote:
>> The noise doesn't necessarily have to follow the AC power line...the power
>> cord itself can
>> serve as an antenna.  Noise generated in the power supply radiates out of
>> the power cord.
>> An RF choke (as  I mentioned in my earlier post) placed around the power
>> cord and as close
>> as possible to the computer chassis will block the RF noise from going
>> down
>> the power cord.
> If the power cord is acting as an antenna, would it help the noise to try
> moving the power cord around?
> --
> A. Joseph Ross, J.D.                     617.367.0468
> 92 State Street, Suite 700          Fax: 617.507.7856
> Boston, MA 02109-2004

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