I am using V4.1.1 of arducopter, and want to log rangefinder data without using it for terrain following/surface_tracking in loiter mode. How can I do it?
Does disabling wpnav_rfnd_use to 0 mean that rangefinder wont be used by the controller?
Yes, that should probably do it. But to be really sure you must test it on ArduCopter 4.3.6.