On Wed, 19 Oct 2005 03:14:16 GMT, "Hilton" wrote:

What other things can make GPS signals go bad?

I once had a GPS that did not work at my own home, which is a couple
of miles from the former Pease Air Force Base. If I flew over my house
(or Pease, for that matter) sure enough, it lost the signal. I always
reckoned that Pease had a death ray going. Then I got an aviation GPS
(both were Garmin) and the problem disappeared. (Of course Pease AFB
about the same time became Pease International Tradeport. Maybe the
USAF took the death ray with them?)

I am now two generations past that first GPS. I've never lost a signal
except due to heavy trees (automobile travel, not airplane). I have
however had user-defined waypoints shift position (and in rather
dramatic fashion, from New Hampshire to somewhere on the
Chile-Argentina border--that is, they went from north latitude to
south latitude).



-- all the best, Dan Ford

email: usenet AT danford DOT net

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