If I take my drone up to its maximum altitude that I usually get at 1625 feet then fly towards a near by small mountain that is 1900 feet high, when i get closer and closer to the mountain side and the mountainside is rising up towards my drone will the radar on underside reset the drone to the current altitude i am at so I can continue up the mountain or am i stuck at present altitude and have to land it there to reset current altitude to zero and then continue on up the mountain side.