EX4 Operation Manual
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One Key RTH
When the GPS signal is good (the aircraft status indicator is solid green), the aircraft can return to
the return point via the “ ” button on the remote control, and the return process is the same as
lose control RTH. The difference is that when the aircraft returns and begins to land, the user can
control the aircraft through the joystick to avoid obstacles and change the landing position. After
pressing and holding the “ ” button for more than 2 seconds to exit the return, the user can
regain control of the aircraft.
Low Battery RTH
During the flight, when the red light of the aircraft status indicator flashes slowly, the aircraft
triggers low battery RTH. During the landing, the user can control the aircraft by joystick to avoid
obstacles and change the landing position.
Lose Control RTH
When the GPS signal is good (the aircraft status indicator is solid green), the compass is working
normally, and the aircraft successfully records the return point, if the remote control signal
continues to be lost for more than 2 seconds, the flight control system will take over the control of
the aircraft and control the aircraft to fly back to the last recorded return point. If the signal of the
remote controller is restored later during the flight, the return process will continue, but the user
can cancel the return and regain the control of the aircraft through the RTH button “ ”.
Attentions
：
● The aircraft cannot avoid obstacles when it is flying back during the RTH process.
● The aircraft cannot return to the Return Point if the GPS signal is weak or unavailable.
● During RTH process, when the aircraft is flying above 30 meters, the aircraft will
immediately perform the RTH function; when flying below 30 meters, the aircraft will rise to
30 meters automatically and then perform the RTH function.
● If the aircraft does not receive the satellite signal or the signal of the remote controller
continues to be lost for more than 2 seconds, the aircraft will not be able to return, and will
slowly descend until it lands.
Vision Position System
Consisted by ultrasonic sensor
①
and camera
②
,The vision system is composed by vision
sensor and ultrasonic sensor, The position information of aircraft can be obtained by vision sensor,
and the current height can be judged by the ultrasonic sensor, so that the precise positioning and
safe flight of aircraft can be ensured.
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