Transmitter and Receiver Binding
Binding is the process of programming the receiver of the control unit to recognize the GUID (Globally Unique
Identifi er) code of a single specifi c transmitter. You need to bind your chosen Spektrum™ DSM
the fl ybarless unit before fl ying the helicopter.
General Binding Procedure
1. Disconnect the fl ight battery from the helicopter.
2. Power off the transmitter and make sure the fl ight mode switch is in the Normal position. Move the throttle to
the low/off position.
3. Connect the fl ight battery to the fl ybarless control unit. The LED on the fl ybarless unit fl ashes after 5 seconds.
4. Put the transmitter into bind mode while powering on the transmitter.
5. Release the bind button after 2–3 seconds. The helicopter is bound when the blue LED on the fl ybarless unit
is solid.
6. Disconnect the fl ight battery and power the transmitter off.
CAUTION: Futaba transmitters equipped with Spektrum modules require you to reverse the throttle
channel.
If you encounter problems, obey binding instructions and refer to the troubleshooting guide for other instructions.
If needed, contact the appropriate Horizon Product Support offi ce.
Calibration Procedure
To ensure your Red Bull BO-105 CB 130 X helicopter is properly confi gured to your transmitter, please go through the
following calibration procedure. Only use subtrim during the calibration procedure. It is normal for the servos to move
slightly back and forth at neutral.
1. Unplug the motor from the control board.
2. Plug the battery into the helicopter and ensure the model remains motionless while arming.
3. Move the throttle stick above the idlee position to activate the gyros. The servos will begin to respond to movements.
Do not move the helicopter.
4. Watch for any drifting of the swashplate or tail linkage. Counter the drift on each axis with subtrim. For example, if the
swashplate drifts to the right, add left aileron subtrim. If the swashplate begins to drift left, you've added too much
subtrim. The goal is to add enough subtrim to prevent any drifting.
When the calibration procedure is complete the swashplate and tail linkage will remain in a neutral position when
the gyro is active and the helicopter is motionless.
IMPORTANT: Moving the throttle stick back to zero will reset the gyros after 5 seconds.
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