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From: macklin@garnet.berkeley.edu (Macklin Burnham)
Newsgroups: comp.dcom.lans
Subject: Re: Motorola wireless lan?
Message-ID: <1990Oct30.161009.19651@agate.berkeley.edu>
Date: 30 Oct 90 16:10:09 GMT
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Spread spectrum frequency was originally developed by the military
for secure, jam-proof battlefield communications, I believe.

I have an article in front of me (Network World, 10/29) on the Motorola
wireless lan offering, and it seems that they are not using spread spectrum
(man, that's hard to say!) technology, but rather miniaturized low-power
radio in the 18GHz range. They call it Wireless In-building Network, and
I quote:
"Motorola said WIN provides data security through the use of low-power
18-GHz signals, which lose strength if they pass through walls or doors.
This means that one WIN is essentially invisible to another system that
is more than 120 feet away."

Hmmmmm.
Mack Burnham