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Posted by Sunny on 01/27/06 00:04
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.
Sunny
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