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Excessive bug in Android locations in Android

I have an app that stores the location of a GPS tablet in a database every 2 minutes.

I get my location points from LocationManager

.

I have locations in my database, the accuracy of the programs is around 50, and the actual accuracy is sometimes around 200 meters.

Yesterday I saw for the first time that 5 consecutive locations in my database are about 1000 km from other points.

What is the reason for these errors? How can I avoid them?

Update:

If there is no solution to improve GPS points, is there any algorithm to refine distant places?

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Although 1000 km seems like a huge precision factor, check if your app is actually using GPS and not network location. Thanks to the cell based location (no GPS), it is not difficult to get some kilometers exactly.



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