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GPS over WiFi, how does it work?

3151 Views 5 Replies Latest reply: Jan 20, 2013 11:57 AM by JelbertH RSS
JelbertH Level 1 Level 1 (0 points)
Currently Being Moderated
Jan 19, 2013 1:34 PM

I have a iPad wifi and I want to do accurate navigation on it.

Now there are several ways to do that.

I could buy a cable from RedPark and hook on a serial GPS. That one will hook on the location services and all gps. However this mere cable costs $249 ... a tad expensive for my taste.

Then I could get a bluetooth device that talks in a special protocol. A bluetooth GPS device that works on a non jailbroken iPad costs $99 while a bluetooth gps device for lets say android costs $10.

Then there are these MiFi devices like the sprint overdrive. They hook up with the iPad by WiFi and provide an internet connection. The also provide a GPS and hook on to the location services.

My question is: How do these MiFi devices provide the GPS location data to the iPad? Does anyone know if there is a special port or IP involved?

 

What I want to do is the following: Combine a GPS receiver with an serial to WiFi converter. This already works. However it does not hook up to the location services because I do not know how that works.

 

Can anyone help me out?

iPad 2 Wi-Fi, iOS 6.0.1
  • xnav Level 5 Level 5 (6,625 points)
    Currently Being Moderated
    Jan 19, 2013 2:33 PM (in response to JelbertH)

    Sell the WiFi iPad and by a new one with a GPS chip (any WiFi + Cellular model), seriously.

  • xnav Level 5 Level 5 (6,625 points)
    Currently Being Moderated
    Jan 20, 2013 6:31 AM (in response to JelbertH)

    Are you by any chance the one who wrote Xnav navigation program for the iPad?

     

    No, I'm not.  The iPad GPS is as accurate as the iPhone's. Relying on a 'cheap' nav solution at sea could be a mistake.

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