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Re: Ferrite Chokes

Posted by BiBrun on Apr 11, 2010; 3:32am
URL: https://www.es-forum.com/Ferrite-Chokes-tp1553363p1553394.html

I don't think anyone's reported a big improvement from using them anyway,
probably because the keyboard and monitor generate their own RF. I used on
or two on cables inside of an LCD TV monitor... there was significant
improvement but I also tried to improve ground connections and add a little
more shielding.

I once saw a professional RF detector that had big ferrites every several
inches on a cable that was a few feet long going from the probe to the
receiver.

On Sat, Apr 10, 2010 at 1:02 PM, Steve G <[hidden email]> wrote:

>
>
> Oh, I thought I only needed one per cable. Guess I better get some more! By
> data cables do you mean USB? I see my monitor cable already has one.
>
> --- On Sat, 4/10/10, Bill Bruno <[hidden email] <wbruno%40gmail.com>>
> wrote:
>
> > From: Bill Bruno <[hidden email] <wbruno%40gmail.com>>
> > Subject: Re: [eSens] Ferrite Chokes
> > To: [hidden email] <eSens%40yahoogroups.com>
> > Date: Saturday, April 10, 2010, 8:33 AM
>
> > I would put them near both ends of
> > the mouse and keyboard cables,
> > video cables and data cables. But I think they only
> > help with
> > fairly high impedance signals in the MHz region. They
> > don't
> > address power supply issues.
> >
> >
> > On Fri, Apr 9, 2010 at 7:32 PM, torch369 <[hidden email]<torch369%40yahoo.com>
> >
> > wrote:
> >
> > >
> > >
> > > Hey all, i just bought some ferrite bead chokes at
> > Radio Shlock, I got 3
> > > different sizes because I had no idea which size I
> > needed.
> > > Where would be the best place to use them? Keyboard
> > cable, mouse cable,
> > > power cables, TC, etc? Or should they be put on every
> > wire I can find?
> > > Also, does it matter where on the wire it gets
> > placed?
> > > Thanks
> > >
> > >
> > >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> > [hidden email]<eSens-fullfeatured%40yahoogroups.com>
> >
> >
> >
>  
>


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