[maemo-users] N900 GPS Recalibration

From: Antti Vähä-Sipilä avs at iki.fi
Date: Sun Mar 21 21:52:40 EET 2010
> ...or is GPS just inherently less accurate for height than it is for latitude/longitude?

Here is an article that could be helpful. It's about an upcoming GPS satellite reorg, but the pictures show how different lat/lon and vertical accuracies are. (Scroll down to Horizontal Accuracy and Vertical Accuracy.)


Some explanation of the issues affecting altitude accuracy: 


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