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The WGS84 altitude does not refer to the common altitude (usually MSL : Mean Sea Level) of a location but take in account others parameters like the Geoid separation: Altitude (WGS84) = Height (MSL) + Geoid Separation Altitude (MSL) can be found using GoogleEarth or other map tools and Geoid separation can be obtained here. If you only know your altitude without the Geoid separation values, just enter Altitude. This should not be an issue and sufficient for sensor calibration. |
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If you plan to use your vehicle the next day in another location, you should set the HomeLocation > Set parameter to False This means the next time the controller starts and gets a good GPS fix, this new location will be used. In System tab and UAVOBrowser, search for HomeLocation Uavo, change the Set parameter to FALSE, and Save settings. |