The TTFF (time to first fix) can take anything up to 45 minutes on first installation.
The longer you leave it between use the longer it will take to get a fix. A HOT start, having switched it off for a few hours, you should get a fix within a minute or shortly after. If you haven't used it overnight it may take between two and five minutes.
If, for example, you last used it in Perth, left it switched off and switched on again in Melbourne, you would find it will take up to 45 minutes again as the data has to be recollected for your new position.
Another couple of things to remember. If your car has an athermic (heat resisting windscreen) it will take forever to get a lock when inside the car. To get around this just make sure you get a good fix on at least 6 sats before setting up inside the car. The other point is, never drive off before you get a fix. Put these two points together and you'd be lucky to get a fix this side of England winning the ashes again.
Last edited by Border_Collie : 03-05-2007 at 07:35 PM.
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