Logically, if it can make emissions worse, it can make them better, too.
Suppose your original board exhibited some resonance, and thieving changed
it. That would certainly lower emissions due to a resonant board. Anything
that resonates will radiate, and this can even be a whole board in its
slot.  So the answer is yes, it CAN help. But I'd not count on random
thieving to cut overall emissions!  On the other had, I like the idea of
ground-fill, well tied to an underlying plane. This should provide an
on-board return path for fields than otherwise would return through more
distant conductors.

Cortland
====================== Original Message Follows ====================

 >> Date:  17-Jan-01 12:18:24  MsgID: 1077-21792  ToID: 72146,373
From:  "David Gelfand" >INTERNET:gelf...@memotec.com
Subj:  Re: Copper balance
Chrg:  $0.00   Imp: Norm   Sens: Std    Receipt: No    Parts: 1

From: "David Gelfand" <gelf...@memotec.com>
Subject: Re: Copper balance
List-Post: emc-pstc@listserv.ieee.org
Date: Wed, 17 Jan 2001 15:18:44 -0500
 
Can thieving reduce emissions even if they are floating?  I have two
different versions of a board, the one without thieving is much noisier
than the other.

Thanks,

David.

David Gelfand
Regulatory Approvals
Memotec Communications Inc.
Montreal Canada



====================== End of Original Message =====================

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