Clarification please. Does LOS mean you can see the drone or does it mean you have an unobstructed path to the drone? I ask because in a big field, I can go 400’ straight up but cannot see the drone.
Thanks all! I will review my RTH settings (and test it), also keep an eye on signal strength and GPS. The ground is very flat on both sides of the river. Are trees considered obstructions?
New flyer here. Looking at flying up a medium sized non-navigable river with no wires across and am concerned about going around corners. How do I know if the next bend will leave me with no control.