maemo.org - Talk - View Single Post - Nokia N900 A-GPS Not Working Anymore

acrux	2013-07-05 , 12:00
Posts: 286 \| Thanked: 615 times \| Joined on Jan 2011 @ Estonia	#11

Originally Posted by nieldk

A lock will happen really fast, but a precise lock will happen far later, perhaps half an hour, when the GPS have recieved a complete set of data.
http://en.wikipedia.org/wiki/Assisted_GPS

Well, everything is explained in your cited wiki page and here:
http://en.wikipedia.org/wiki/Time_to_first_fix

I myself do not use AGPS at all (usually there is no network connectin where I use GPS) and I get fix during some minutes. If it is "cold" or "factory fix" then the time could be up to 12.5 minutes, otherwise less. And it is "anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites"

How many satellites are visible are shown for example in a program "GPS Recorder"

Last edited by acrux; 2013-07-05 at 14:13.

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