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How to check the current protocol
The radio transmitter could support 4 different protocols, including Frsky D16 FCC,
Frsky D16 LBT, Frsky D8 and Futaba S-FHSS.
The current protocol is indicated by the flashing times of the red LED when power on,
before the buzzer alarm.
How to change the current protocol
Below are the steps to change protocol (Frsky FCC D16, Frsky D16 LBT, Frsky D8, or
Futaba S-FHSS).
● Power off the radio transmitter;
● Press and hold the BIND button while power on the radio transmitter;
● Then the flash times of the red LED before buzzer alarms will change, according to
the tables above.
8.4 Switching Protocol
The joystick data may offset after it has used for a period of time (if joystick has been
hit against physically). User need to re-calibrate joysticks based on following steps:
● After powering on, press SETUP button on the back of remote control radio
transmitter, it hears two "Bee Bee" sounds, and red LED flash quickly (two flashes
each time), which means remote control radio transmitter entered calibration mode;
● Move throttle joystick and direction joystick to middle position, press SETUP button
again, wait until the buzzer beep three "Bee Bee Bee" sounds, red LED light flashes
quickly (two flashes each time), which indicates joystick data has been acquired and
enter into the boundary value calibration mode;
● Toggle the joystick to move to the top, bottom, left, and right joystick boundaries
respectively (do not to press too hard, the joystick just needs to touch the boundary)
and keep the position for 1-2S, then press the SETUP button one more time, user can
hear a long beeping sound (about 3 seconds) from the buzzer again, and the red LED
light stops flashing, indicating that the calibration of the joystick is completed.
8.3 Joystick Calibration
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