[size=15.008px]I need some help understanding all the different altitudes displayed when flying a mission in Terrain Awareness mode.

[size=15.008px]I’m mapping extremely hilly terrain and trying to make sure I keep a consistent altitude so the whole map has a consistent resolution.

[size=15.008px]During a mission, there are 4 different altitudes presented. I find it very confusing, and want to make sure I’m actually staying below the 400’ AGL limit.

[size=15.008px]Any help/insight is greatly appreciated.

[size=15.008px]When in flight the screen displays:

[size=15.008px]H: XX ft (I thought this was AGL altitude, but it doesn't seem to be operating that way.)

[size=15.008px]RTKH: XX ft  (I'm pretty sure this is supposed to be MSL altitude, but if the AGL altitude is off, then that makes this off too.)

[size=15.008px]Then on the RTK Settings screen there are two altitudes displayed.

[size=15.008px]An altitude for the drone (Is this AGL?  If so, why doesn't it match the 'H' altitude on the flight screen?)

[size=15.008px]An altitude for the D-RTK2 Base Station  (What is this altitude?  For example, the last location I was set up on had an elevation of around 670ft, but the base station showed an altitude of 175ft.)

[size=15.008px]Thank you.