>-----Original Message-----
>From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]
>On Behalf Of Robert B.


>I'm skeptical still.  So I couldn't pilot an ICBM unless it was below 18kft
>and subsonic.  Hmm..  sounds pretty difficult.  Good thing it doesn't
>inhibit my creation of cruise-missiles at least ;).  Furthermore, I was
>under the impression that the GPS satellites were a passive broadcast
>system, which would make it very difficult to do any broad limiting like
>that.  Which is why they turned the accuracy down for so long...


In this case, the limitation's built into the receivers, not into the
signal, as Selective Availability used to be. As Russell and others have
stated, it's perfectly possible to build/buy a unit without these
limitations, even for pretty cheap (<$500). IMHO, this isn't a serious
limitation on terrorist activities.

>It would be way too easy to get around those limitations anyhow, even if
>such a limit does exist.  Launch an ICBM with inertial navigation to get it
>in the ball park, slow it down and bring it lower for precise... wait who's
>that at the door...
>
>'click'


LOL! Seriously... You seen this guy?
http://www.aardvark.co.nz/pjet/cruise.shtml

It's not really that hard to build a pretty capable cruise missile, given
commercially available technology.


TTYL!

- Robert

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