[7152] in cryptography@c2.net mail archive

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Re: GPS integrity

daemon@ATHENA.MIT.EDU (Phil Karn)
Mon May 22 01:51:38 2000

Date: Sun, 21 May 2000 13:07:11 -0700
Message-Id: <200005212007.NAA00911@laptop.ka9q.ampr.org>
From: Phil Karn <karn@ka9q.ampr.org>
To: gnu@toad.com
Cc: die@die.com, foner@media.mit.edu, cryptography@c2.net
In-reply-to: <200005191652.JAA03587@toad.com> (message from John Gilmore on
	Fri, 19 May 2000 09:52:59 -0700)
Reply-To: karn@qualcomm.com

>Sounds like some interested parties should take some GPS gear and some
>radio receiving and test gear to one of the spots where the millatree
>is warning airmen that "for the next two weeks, GPS doesn't work
>here", and see just what sort of jamming they are using...

A good idea, but I note that most of these sites are in the middle of
large western military reservations out in the middle of nowhere. You
might be able to see something from a small plane (keeping out of
restricted airspace, of course) but then you need some other way of
knowing where you are so you can compare results.

Phil


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