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Hi Peter:

It's my understanding that the LORAN-C system will be kept as a backup to GPS for WAAS.
The other satellite based nav systems are so similar to GPS that all of them 
would be rendered useless by a jammer.
The current issue of GPS World has an article on how various types of jamming 
effect various receivers.  Bottom line, ALL GPS
receivers are susceptible to jamming, it's just a question of how much power.

73,

Brooke

Smith_Peter@EMC.COM wrote:

> On Sunday, January 26, 2003 1:25 PM
> Brooke Clarke [mailto:brooke@PACIFIC.NET] said:
> > I'm a person who for all his life has had a deep interest in things
> > related to time and position.  Navigation is one of the areas that
> > this shows up.  I have a web page for Navigation Orientation &
> > Position at 
> >...
>
> Nice website, esp. the info and links on stadia and plane table mapping.
> It's clear that traditional surveying and navigation have much in
> common: trigonometry, interesting instruments, being steamrolled
> by GPS.

   

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