4DRC F3, Руководство пользователя

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Flight preparation
Turn on the drone and put it on the horizontal place for automatic frequency
mathing. The front white and the rear red indicator lights will start flashing and the
battery indicator will be on. Connect to the drone to your device via WiFi connection
and open the app. Turn on the remote controller and the indicator light will light up.
Push the throttle joystick maximal up and the maximal down to match the frequency.
When it’s matched, the UAV light will stop flashing and stay on.
Push the left and right joysticks to the lower left corner and the white and red
indicator on the drone will start flashing. When those indicators stay on means that
the horizontal calibration is completer and the remote controller will also beep for
confirmation.
For the geometric calibration long press the Compass calibration button until
the white and red indicator lights starts flashing. Rotate the drone clockwise
horizontaly (middle position on the picture below) until the controller beeps indicating
that the horizontal geometric calibration is completed. Then rotate the drone again
clockwise with the tail going upward until the controller beeps indicating that the
geometric calibration is completed.