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post #5 of (permalink) Old 14th February 2008
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it's normal situation that you can navigate with your navi even if GPS icone is red. Navi is designed to work withou it. that's the difference between mobile navi (which uses only GPS receiver) and navi mounted into your car. GPS signal is used only for initial position and every 3-5 minutes to correct your position.
but main source of parameters is car computer giving speed signal from abs and gyrosensor inside navi computer informing about turns etc. That's why the price of such navi is much higher.

and green sat icon does not mean that you have good GPS signal reception. It becomes green even when navi finds only 1 sat. But for position you need at least 3 of them (but you will have green icon with only 1 found).
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