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Re: Ferrite rings do anything or just marketing frill?

Subject: Re: Ferrite rings do anything or just marketing frill?
From: daytripper
Date: Wed, 31 May 2006 14:32:14 -0400
Newsgroups: sci.electronics.basics, sci.electronics.design, comp.sys.ibm.pc.hardware.chips
On Wed, 31 May 2006 12:49:44 -0500, chrisv <chrisv@xxxxxxxxxxxxxx> wrote:

>Joel Kolstad wrote:
>
>>Actually, unless you're getting a case from the likes of Dell or HP or 
>>someone 
>>else with a name to protect, many "normal" cases leak like a sieve.  And of 
>>course the current fad in the modding community of putting a large piece of 
>>plexiglass in the side of the case to show off the internals doesn't block 
>>anything below the audio range of EMI. :-)
>
>I was wondering about those...   But don't they have to meet FCC
>specs?

An empty case will almost always sail through FCC testing ;-)

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