UBSAN Q4 Instruction Manual page 7

5.3 TRANSMITTER STICK CALIBRATION
Mode 2: Push both sticks to the upper left position and hold, then power on the
transmitter. Rotate both sticks twice. Hold down any trim until the LED on the transmitter
blinks red, indicating successful calibration.
Mode 1: Push the left stick to the upper left position and right stick to the upper right
position and hold, then power on the transmitter. Rotate both sticks twice. Hold down any
trim until the LED on the transmitter blinks red, indicating successful calibration.
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