Question about Garmin nuvi 255W GPS Receiver

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My GPS that is only about 4 days old works fine sometimes but then it will say "Poor satelite reception" and then "none" what do you recommend?

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Do you live in a an area with plenty of tall buildings/trees around you? Do you live in a valley? GPS units need to "see" plenty of clear sky to work reliably.

Does the problem occur the same whether you're using it in the car or on foot? Many modern cars have solar reflective glass which has a microscopic metal coating and it blocks satnav signals unless a supplementary external satnav antenna is fitted.

If you press and hold the nuvi's signal strength bar on the display for a few seconds you'll get a screen which shows how many satellites the unit is picking up along with a display which tells you how accurately the machine has fixed your position. It won't fix your problem but can help you find out what seems to be wrong.

If you're still having problems and these are not the causes then there's no point in doing anything further: just return it to the vendor for a refund or exchange as they are sometimes faulty straight out of the box.






Posted on Oct 01, 2009

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GPS receivers need a good 'view' of the sky so they can connect with more than a single satellite; the minimum is normally three and that does not give you the maximum accuracy.

Posted on Oct 01, 2009

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