How the altitude estimation in Arduplane works with analog connected rangefinder (SF02F) on board on the altitudes covered by the rangefinder. Does the Pixhawk gets the altitude data from the rangefinder or other sourse - baro, GPS? I need to do lowlevel flight at 10-30 meters @ 50-100 kh/h and it is necessary to control the altitude very fast and accurate so how the system will work? The SF02F covers up to 40 meters so if the aircraft flys lower, does it mean that the autopilot know what the altitude from the rangefinder in any mode, or the rangefinder uses only in autolanding mode. Is there any sence to put such expencive rangefinder to make fast and accurate altitude estimation?

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