7
5.System Functions
This section focuses on the functions and how to use them.
5.1 Channel Description
5.2 Channel Reverse
The transmitter outputs a total of 4 channels, which are allocated as follows:
• CH1：Steering Wheel
• CH2：Throttle Trigger
• CH3：Three-position Switch
• CH4：Key Switch
Note: By default the output of CH4 is 1000us, after which pressing the button will toggle
between 1000 and 2000us.
This function is used to adjust the action direction of the servo or motor
The ST.REV / TH.REV switches are the reverse buttons for CH1 and CH2. If the switch is up it
indicates reverse, and the down indicates normal.
5.3 Trims
The ST.TRIM is the trims for CH1 (steering),and can be multiplexed as Trims of CH3 ;
The TH.TRIM is the trims for CH2（throttle).and can be multiplexed as Trims of CH4 ;
For multiplexing switching mode, see [5.5 Mode Switching].
Adjustment range: -120us- + 120us;
ST.TRIM/TH.TRIM: counterclockwise adjustment to increase the trim value. The maximum value is
120 us.
ST.TRIM- / TH.TRIM-: clockwise adjustment to decrease the trim value. The minimum value is -120
us.
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