I am planning a Drone Survey and the height of the drone will be 60m (196ft). So when I launch the drone it takes its datum height from the launch point as 0.0m (DJI M2P) it will then climb to said height and go off and do it’s thing.
However, one part of the survey is we are launching from the roof of a multi -story car park which is 12.31m (40ft) high. When I launch the drone it will have a datum height of 0.0m.
My question is, will the drone then ascend to 60m (above the building) and therefore 72.31m AGL or will it pick up its height from the GPS and go to 60m AGL.