Gary,

Check out the SI-List reflector archive file at:

http://www.qsl.net/wb6tpu/si-list/subject.html#start

Do a word search within the page on "guard".  You'll find a couple of
discussions on the subject of guard banding.

Or check out Dr. Howard Johnsons web page at:
http://signal integriy.com

He has a Real Audio discussion of Guard Traces at:
http://signalintegrity.com/Hjguardtraces.htm


Hope this helps.

Susan

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