What is the maximum height the rangefinder is used up to

[and-sh]

Usually cheap rangefinder gives wrong value above some height. How to limit height at which rangefinder is used?

[anti-vaxxer]

to limit it to 2 meters for example enter this in CLI
set nav_max_terrain_follow_alt = 200
set inav_max_surface_altitude = 200

[and-sh]

Will rangefinder be used below this altitude for althold when surface mode is off?

[sensei-hacker]

Will rangefinder be used below this altitude for althold when surface mode is off?

No. That would cause it to fall into a hole / ravine and you would lose radio signal.

[and-sh]

Thank you