Very interesting... I just went in to my back yard, and I couldn't get a lock after a couple of minutes. I started 3 more apps, and it locked in the next 10-15 seconds (forgot to start the stopwatch app...)
Originally Posted by jhodnettejr
But, it is showing me in a location about a block from my house. After I shut down those apps, my phone rebooted itself. After it came back up, every app had a lock almost instantly (I wasn't expecting that) but still about a block away... but a little closer.
But, I noticed a couple of things. Several showed me travelling between 1mph and 6mph (I was sitting in a chair), and each app showed a different elevation - way different.
None were correct. I live at about 1,500 feet elevation. One showed me at 3,000+, one at 800, etc.
That takes me back to aGPS topics. Since the satellites drift some, that could explain the speed while sitting. Not sure about the altitude differences.
But a few feet of drift in geosynchronous orbit would translate into a larger distance on the ground, and without the aGPS data to correct... it could reduce accuracy. I'm going to go back out with my Blackberry and compare it in google maps...
Someone else mentioned that turning wifi on seemed to help wake up the gps. I don't know why but someone can try that... My wifi is always on at home, so I don't want to introduce a new variable yet...