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Summary of Contents for RadioLink F121 Pro
- Page 1 F121 Pro Mini Racing Drone with Manual Mode Altitude Hold by Inertial Navigation User Manual V 1.1 * 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 Limited www.radiolink.com Thank you for purchasing RadioLink mini racing drone F121 Pro. 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
4.5 Switch for 360 Angle Flips Mode......................... 12 4.6 Low Battery Alarm............................13 4.7 Calibration................................13 Chapter 5 Image Transmission of F121 Pro........................14 Chapter 6 FPV Goggles of F121 Pro..........................15 6.1 Buttons and Connector..........................15 6.2 FPV Goggles’ Battery............................ 16 6.3 DVR Mode............................... -
Page 4: Chapter 1 Features Of F121 Pro
Chapter 1 Features of F121 Pro As the mini racing drone that can fly at high speed at Altitude Hold Mode, F121 Pro is very easy to master for drone freshman. The inertial navigation system technology blending Kalman filtering, gyro, accelerometer, and barometer makes F121 Pro possible to flight through narrow space with accuracy and hold altitude even it’s less... -
Page 5: F121 Pro
MODE 2 Note If it’s the transmitter from other brands used with RadioLink F121 Pro, make sure that the receiver should be SBUS signal output supported. Once the receiver is installed on the mini drone, the phase of the throttle should be reversed while the other three channels normal and the CH5 should be set with a 3-way switch to change the flight mode and the CH7 set a switch (a 2-way switch or a 3-way switch is OK) for arm or disarm. - Page 6 F121 Pro descends. If at Alt-Hold Mode, toggle the throttle stick vertically upward till the F121 Pro rises to the preferred height, then toggle back to center position and release, the F121 Pro will remain at this height.
- Page 7 Pitch stick downward, F121 Pro moves backward D. Roll: Right/Left Toggle the roll stick (on the right) to the left and F121 Pro will fly to the left side and toggle the roll stick to the right, then F121 Pro will fly to the right side.
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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 Pro motors can be identified by the cable colors. That is, motor with red and blue wire means motor of clockwise (CW) while with black and white wire means that of counterclockwise (CCW). It is very important to make sure about the rotation direction as below when installing motors. -
Page 9: Propellers And Propeller Protectors Installation
Note After the installation of the four propeller protectors, double confirm if they are leaning or slightly shake F121 Pro to see if they drop. If they are crooked or drop, repeat the above steps to ensure the well installation. -
Page 10: Power On F121 Pro
Before powering on F121 Pro, make sure T8S is fully charged. Put the throttle stick at the lowest position and long press power key to power on T8S. Then power on F121 Pro. Fully charge the 1S LiPo battery first. Plug the PH2.0 end of the battery into the F121 Pro, then insert the battery into the battery frame under at the bottom of... -
Page 11: Binding
However, if you want to change the control transmitter, binding between the transmitter and receiver needs to done first. If fly F121 Pro with RadioLink transmitter and receiver, binding steps are same as following. ① Place the transmitter and receiver(installed on F121 Pro) close to each other within 50 centimeters. -
Page 12: Chapter 4 Flight At Different Flight Modes
CH7 switch (the 2-way switch on the left) to the top position to arm. If you use the other transmitter except the T8S or T8FB to control the F121 Pro, set a 2-way switch to control the CH7, and when the throttle is at the lowest position and the switch at the top position, the green LED of F121 Pro is on means arm successful. -
Page 13: How To Disarm
Always be sure about turning off F121 Pro before T8S. Press the CH7 switch (the 3-way switch on the left of T8S) towards the front of T8S, the green LED of F121 Pro is off means disarm successful. When the transmitter is T8FB, put the CH7 switch (the 2-way switch on the left) to the bottom position to disarm. -
Page 14: Forward/Backward/Right/Left
The flight controller will not help keep F121 Pro altitude hold, which is more challenging, that will ask the polit keep a long-time practice. The flight angle of F121 Pro still limited at Stabilize Mode, if you want to control the F121 Pro keep roll over or freestyle, the Manual Mode will be the best choice. -
Page 15: Low Battery Alarm
When the transmitter is T8S, press the CH6 switch twice continuous and then push the aileron or elevator stick. If push the aileron stick to the left, the F121 Pro will roll 360 degrees to left. If push the aileron stick to the right, the F121 Pro will roll 360 degrees to right. -
Page 16: Chapter 5 Image Transmission Of F121 Pro
Chapter 5 Image Transmission of F121 Pro The image transmission device of F121 Pro is 5.8G 25mW all-channel camera integrated image transmission. If it’s the image transmission version purchased, the binding between F121 and the FPV screen has been done by factory default. -
Page 17: Chapter 6 Fpv Goggles Of F121 Pro
④ The detailed instructions of setting FPV screen and goggle, please refer to its corresponding manual. 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. Chapter 6 FPV Goggles of F121 Pro 6.1 Buttons and Connector... -
Page 18: Fpv Goggles' Battery
Attention: the DVR mode need a TF card, the goggles of F121 Pro are default without the TF card, if you want to use the DVR function, please add a TF card first, it max support a 32GB TF card. -
Page 19: Remote Controller
Low Battery Alarm: Green LED on FC flashes 7.2 Remote Controller Frequency (Radio): 2.400-2.4835 GHz Transmitter: Radiolink 8 channels transmitter T8S Receiver: Radiolink 8 channels MINI receiver R8SM Control distance: 2000 meters (1.24Miles with R8SM) 7.3 Charger Input: 5V Output: 5V Current: 1A/2A 7.4 Camera &...
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