Newps wrote:


Suppose you are navigating solely by GPS. What are you going to do in
the event the military chooses to disable the GPS system while you're
airborne

Can't be done. There is no on/off switch.

I'm involved with supporting spacecraft operations of NASA's constellation
of EOS spacecraft. Somewhere, there's a satellite control center that
operates the constellation of GPS spacecraft. It may be true that the
military can't "throw a switch", but there's no doubt that they can
command each satellite to shut itself down and go into "safe hold",
effectively shutting down the GPS system.

--- Jay


--
__!__
Jay and Teresa Masino ___(_)___
http://www2.ari.net/jmasino ! ! !
http://www.oceancityairport.com
http://www.oc-adolfos.com