Cecil,

We design our products for -10 dB limit,  accept -8 dB for a lab prototype
 pre-production) and allow -6 dB for production units.  We feel this is not
conservative based on past history of measurement uncertainty and production
variations.

Jim

-----Original Message-----
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of
cecil.gitt...@kodak.com
Sent: Monday, December 10, 2001 7:46 AM
To: emc-p...@majordomo.ieee.org
Subject: EMI guard bands


From: Cecil A. Gittens

I am in the process of putting a document together for products that are
tested for  Radiated & Conducted Emissions
that should have a Guard-band of 6 dB for FCC or CISPR22 class A or B.
Does it depend if the product is class A or B?
Does anyone have any pointers or suggestions?

Thanks.


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