Parrot ANAFI USA GOV, User Manual

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4. The type of mapping
The DTED2 is more accurate than the DTED1, which is more accurate than the FLAT
map
5. Terrain relief
-DTED maps give an average altitude of the area, so they are not accurate if the
terrain changes abruptly (at the foot of a cliff for example)
-The DTED 1 provide an altitude of 90m per square
-The DTED 2 provide an altitude of 30m per square
-If no DTED map is loaded, the drone assumes a flat ground, at the level of its takeoff
altitude.
6. Fixing the GPS before the drone takes off
We recommend waiting for the green GPS icons before taking off. Taking off without
GPS can decrease the performance of the entire CoT. The height estimation between
the pilot and the drone is based on the GPS.
CoT parameters
You can modify some parameters specific to the CoT function in the options menu:
-Coordinates system: LATLNG, MGRS, UTM and DMS
Go to parameters/Interface/Coordinate system
-Time zone (of screenshots): in Local or UTC
Go to Parameters / Interface /Time zone