What is the relationship between the RTH altitude setting and the effectiveness of the DJI Air 3S sensors?

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What is the relationship between the RTH altitude setting and the effectiveness of the DJI Air 3S sensors: The RTH (Return to Home) altitude setting is directly related to the effectiveness of the DJI Air 3S's sensor system, as it determines how well the sensors can detect and avoid obstacles during the return flight. When the drone loses signal or the pilot manually activates automatic return, it ascends to the predefined altitude before initiating the return flight. If this altitude is too low relative to the surrounding obstacles, the detection system is forced to operate in more demanding conditions, increasing the likelihood of encountering unexpected elements along the route.

If the RTH altitude is correctly set to overcome buildings, trees, or other structures, the sensors will play a less active role during the flight, as the airspace will be relatively clear. This reduces the processing load on the system and allows for a smoother and faster return flight. On the other hand, if the return is executed at too low an altitude, the sensors will have to constantly scan the environment to identify obstacles and modify the trajectory in real time, which can slow down the process and increase battery consumption.

Furthermore, an incorrectly configured return altitude can cause unnecessary interruptions in RTH if the sensors detect a threat that cannot be easily avoided. This forces the drone to stop, issue an alert, and remain in hover mode until the pilot intervenes, which can be problematic if the loss of signal persists. There is also a risk of the drone colliding with structures that were not planned for when the initial altitude was set, especially in urban or forested environments where obstacle heights vary considerably.

Therefore, when programming RTH, it is essential to consider the topography of the environment and set a safe altitude that allows the drone to return without constantly relying on active detection. Although the DJI Air 3S's sensors are highly efficient, their function should complement proper planning, not replace it. Strategically adjusting the RTH altitude ensures the sensors work more effectively, minimizing risks, improving return efficiency, and ensuring the aircraft returns safely to its point of origin.