Innacurate location

Was driving in the southeast US (middle Georgia) around 1400 ET this
afternoon with 4-5 bar signal strength and a clear view of the sky My
nuvi 255W showed the driving direction and general location-- but put my
position about a mile south of where I actually was. This happened for
about 15 minutes despite turning the unit off and on several times.

Then it went back to being accurate-- and it's OK now.

Explanations?

On Wed, 13 Jan 2010 18:55:21 -0500, Trencherman wrote:

Black helicopters.

--
95. My dungeon will have its own qualified medical staff complete with
bodyguards. That way if a prisoner becomes sick and his cellmate
tells the guard it's an emergency, the guard will fetch a trauma
team instead of opening up the cell for a look. --Evil Overlord List

Go to the group sci.geo.satellite-nav and find Sam Wormley's posts a couple
of days ago concerning reconfiguring the satellite orbits and testing. Your
situation might possibly be caused by some of that.

On 13/01/10 23:55, Trencherman wrote:

There are often NOTAMs warning of military GPS jamming trials,
perhaps you wandered through one of those.
I'm not sure how jamming would affect reported signal strength.