Re: GPS

> I am not sure about differential GPS being used to correct distorted
> signals. My guess is that it's possible.

Correct - sort of, the DGPS setup did give additional information (if
you
have the beacon adaptor) to civilian and precision units - US friendly
forces gain little if any benefit.

> The differential GPS schemes I am aware of all require a fixed
> reference point or terrestrial GPS sender of known location. This
> implies limited range (covering say, a city, port or airport). Thus it
> is not too relevant for military operations, though it could be useful
> in street fighting. Taking out differential GPS antennas might be as
> relevant an aim as other communication devices.

Spot on!

> > 3. If the US (or anyone) were to fuzz up a
> > signal coming from someplace and this caused
> > some manner of disaster (air crash, ship to run
> > aground and sink, etc), wouldn't that be a very
> > bad thing? (Yes, I know secondary navigation
> > methods are meant to verify positions, but
> > people ARE becoming GPS dependent).  I
> > realize when weighed against a large scale
> > offensive, these risks are minimal, however I can
> > see someone attempting some form of
> > litigation... (Land of the Free, Home of the
> > Lawyer)

> Interesting thought. Certainly the GPS distortion cannot be aimed to
be
> limited to, say, Iraq. Other countries in the area might be affected
> (including allies such as Israel or Turkey), as well as international
> air traffic in the region. Air traffic disruption (even without
> accidents) might be enough to have the airlines calling for help from
> the government.

Too true - World court at the least - US Supreme court more likely

Brendan