Can someone FULLY explain the 3 GPS options


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  1. bgillyjcu

    bgillyjcu Well-Known Member This Topic's Starter

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    There are three main options for GPS.

    1. Use Wireless Networks
    2. Use GPS Satellites
    3. Enable Assisted GPS

    What should you have on and when should you have it on?
    What uses the MOST battery...the LEAST battery?

    I know Option 2 is required when using the navigation....really option 2 is the most commonly known form of GPS. The other two get a little fuzzy in what they do and when and if we should even turn them on.
     

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  2. Lars

    Lars Well-Known Member

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    1. Uses cellid lookups to give you a rapid position; generally within a mile. Also known as course location. If you want some positioning info but basically free of battery and cpu impact, this does it.
    2. uses gps satellite signals to position you exactly within feet. Uses the most power but is seldom used by most apps except mapping type apps. Also known as fine location. Not really "mandatory" for navigation. You can also turn on wifi and google maps will use that to navigate too. wifi gives a pretty good fix as well.
    3. aGPS uses satellite positioning info downloaded from the net that primes the gps chip so it knows where to start looking. This speeds up number two and saves battery. You need a data plan/connection for this to work.

    The GPS chip itself uses very little power and is seldom used. You can leave it on and enabled and you will not have any impact on battery. The apps that use the chip MAY use lots of battery but that's not the GPS's fault.
     
    SLR 722, bgillyjcu and ozzzy3z like this.
  3. bgillyjcu

    bgillyjcu Well-Known Member This Topic's Starter

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    Good summary. Thanks!
     

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