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Posted by Folkert Rienstra on 01/27/06 00:53
"Sunny" <sunny@nospam.net> wrote in message news:5sdCf.14376$ft2.250737@news20.bellglobal.com
> Rick S. wrote:
>
> > "Doz" <Doz@Doz.Doz> wrote in message news:kh2pt3wnnthv.1ieq0iogd00wf$.dlg@40tude.net...
> >
> > > On 24 Jan 2006 21:35:55 -0800, kegewe wrote:
> > >
> > >
> > > > Kenneth Weinberger
> > > > 1. rogac...@gmail.com
> > > > Jan 24, 9:58 am hide options
> > > >
> > > > Newsgroups: rec.video.desktop, rec.video.production, comp.periphs.scsi
> > > > From: rogac...@gmail.com - Find messages by this author
> > > > Date: 24 Jan 2006 06:58:01 -0800
> > > > Local: Tues, Jan 24 2006 9:58 am
> > > > Subject: Where can I find USB cables with superior shielding and
> > > > ferrite chokes?
> > > > Reply | Reply to Author | Forward | Print | Individual Message | Show
> > > > original | Report Abuse
> > > >
> > > > Kenneth Weinberger
> > > >
> > > > Hi. For my SCSI and Firewire cables, I use Granite Digital cables
> > > > exclusively. Does anyone know where I can find similarly high-quality
> > > > USB cables? Ones with good shielding and ferrite chokes?
> > > >
> > > >
> > > > Thanks,
> > > > Roger Carlson
> > >
> > > one begs to ask... why ?
> >
> >
> > Good question.
> >
> > The reason Roger can't find USB cables with ferrite chokes
> > is because they aren't needed. With most kinds of serial
> > communication you'd have to have an insane amount of
> > interference to cause a problem. A USB cable is just two
> > data lines and two grounds.
>
> My M$ mouse, Garmin GPS, and Nikon camera all have ferrite chokes on
> their USB cables.
>
> I was a bit disappointed when my OBDII interface cable arrived sans
> choke - I would have thought a running vehicle would be a more hostile
> environment than anywhere you'd typically use the devices which were
> supplied with chokes.
Never heard of the Faraday cage, I guess.
>
> Sunny
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