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Summary of Contents for RadioLink F121
- Page 1 Radiolink Electronic Ltd www.radiolink.com F121 Mini Racing Drone Altitude Hold by Inertial Navigation User Manual V 1.0 * Please be kindly noted that this manual will be updated regularly and please visit RadioLink official website to download the latest version：www.radiolink.com...
- Page 2 Radiolink Electronic Ltd www.radiolink.com Thank you for purchasing RadioLink mini racing drone F121. To fully enjoy the benefits of this product and ensure safety, please read the manual carefully and set up the device as instructed steps. If any problems found during the operation process, either way listed below can be used as online technical support.
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Page 3: Table Of Contents
4.2 At Altitude Mode: Hover ........................11 4.3 At Altitude Mode: Forward/Backward/Right/Left .................. 11 4.4 At Altitude Mode: Clockwise/Anticlockwise Rotation ................11 4.5 At Stabilize Mode ..........................11 4.6 Low Voltage Alarm ..........................11 Chapter 5 Image Transmission of F121 ......................11 Specification ..............................13... -
Page 4: Chapter 1 Features Of F121
Chapter 1 Features of F121 As the mini racing drone that can fly at high speed at Altitude Hold Mode, F121 is very easy to master for drone freshman. The inertial navigation system technology blending Kalman filtering, gyro, accelerometer and barometer makes F121 possible to flight through narrow space with accuracy and hold altitude even it’s less... -
Page 5: F121
Throttle: Upward/ Downward/Hover protector 65mm prop(CW) Screws Push the Throttle Stick (on the left) vertically upward and F121 will rise while if push the Throttle Stick (on the left) 8520 motor(CCW) Prop vertically downward, then the F121 will descend. Motor... -
Page 6: Joysticks & Flight Movements
BUT NOT STABILIZE MODE. Rise Hover Descend Yaw: Clockwise/Anticlockwise Toggle the rudder stick (on the left) to the left and F121 will turn anticlockwise and to the right, then clockwise. Rudder stick to the left , F121 rotates anticlockwise... - Page 7 Elevator stick upward, F121 moves forward Elevator stick downward, F121 moves backward Roll: Right/Left Toggle the sileron stick (on the right) to the left and F121 will turn left and to the right, then turn right. Aileron stick to left, F121 turns left...
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Page 8: Chapter 3 Get Ready To Flight
To make the aircraft fly, motors usually rotate clockwise(CW)/counterclockwise(CCW) with the propellers. The rotation direction of F121 motors can be identified by the cable colors. That is, red/blue means motor of clockwise(CW) while black/white means that of counterclockwise(CCW). It is very important to make sure about the rotation direction as below when installing motors. - Page 9 Note After the installation of the four propeller protectors, double confirm if they are leaning or slightly shake F121 to see if they drop. If they are crooked or drop, repeat the above steps to ensure the well installation. If the default propellers get worn and needs to be replaced after a period of flight, it is important to well identify the rotation direction of propellers.
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Page 10: Power On F121
F121.. (1) Put F121 on a level surface and do not move it when the green LED is flashing. NEVER power on F121 by putting on hand as it’s not leveled. - Page 11 Radiolink Electronic Limited www.radiolink.com.cn T9S Pro/AT9S/AT9/AT10/AT10II ① Enter BASIC MENU, select MODEL TYPE and choose MULTIROTOR ② Return to BASIC MENU, select REVERSE and set CH3 Throttle as REV . ③ Enter ADVANCE MENU, select ATTITUDE and set the CHANNEL as CH5, SW3 as SWC with up position as Alt-Hold Mode(Low Speed), middle position as Alt-Hold Mode(HIgh Speed) and low position as Stabilize Mode.
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Page 12: Binding
LED of R8SM starts flashing, meaning binding process has started. ④ The binding is complete when the LED is always on. ⑤ Make sure F121 is armed (Details in next section). Gently push the throttle of transmitter to see if motors move. If doesn’t, retry binding again. -
Page 13: Chapter 4 Flight At Different Flight Modes
(High-speed) then to Stabilize Mode. It’s better to keep the direction of F121 head same as pilot in order to easily judge the flight direction. Otherwise, F121 may flight towards pilot and get him/her hurt. If the aircraft head is changed unexpectedly and different... -
Page 14: At Altitude Mode: Hover
Clearly knowing the direction will quickly help master drone flight. Try imagine sitting on the drone could be a better way to practice. Toggle the rudder joystick to the left and F121 will flight anticlockwise while if to the right, then the F121 will flight clockwise. - Page 15 After powering on, wait for 10 seconds to initialize, red and blue(and yellow) always on means normal working status. Long press the channels/power switching button, the channel frequency, the channel team and the transmit power will recycle. Channels/Power Switching Button *The cover of F121 needs to be removed when pressing the button Table of Band/Frequency Band/Freq 5865M...
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Page 16: Specification
⑤ If there’s interference during the usage, try switching the camera channel first, then search for a new channel on FPV screen or goggle. Specification Name: F121(Altitude Hold Micro Racing Drone） Weight: 47.5g(Drone only) Drone Size: 121*55mm(with antenna; 41mm without antenna）...
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