dji PHANTOM 4 PRO, User Manual

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frequency sound that is only audible to some pets.
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5. Operate the aircraft cautiously when in any of the following situations:
a. Flying over monochrome surfaces (e.g., pure black, pure white, pure red, pure green).
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c. Flying at high speeds (over 10m/s (32.8 feet/s) at 2 meters (6.6 feet) or over 5m/s (16.4 feet) at 1 meter (3.3
feet);
d. Flying over water or transparent surfaces;
e. Flying over moving surfaces or objects;
f . Flying in an area where the lighting changes frequently or drastically;
g. Flying over extremely dark (< 10 lux) or bright (> 10,000 lux) surfaces;
h. Flying over surfaces that can absorb sound waves (e.g., thick carpet).
i . Flying over surfaces without clear patterns or texture;
j . Flying over surfaces with identical repeating patterns or textures (e.g. tiles with same design);
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6. Camera calibration is required if the aircraft suffers from crashing. Calibrate the front cameras if the DJI GO 4
App prompts you to do so.
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lux).
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10. Infrared Sensing System is enabled only in the Beginner mode and Tripod Mode.
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when the aircraft speed is less than 6m/s (13.4 mph).
12. The Vision System and Infrared Sensing System are not able to brake and stop the aircraft at a safe distance
from an obstacle if the aircraft speed exceeds 14m/s (31.3 mph).
13. Please be mindful of blind spots of the Vision System and Infrared Sensing System, as shown below.