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：Reset Button
Note: By default the output of CH4 is 1000us, after which pressing the button will toggle between
1000 and 2000us.
5.3 Trims
This function is used to adjust the action direction of the servo or motor.
The ST.REV / TH.REV knobs are the reverse buttons for CH1 and CH2. If the knob is up it
indicates reverse, and the down indicates normal.
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.
5.4 D/R
The ST.D/R is the trims for CH1 (steering),and can be multiplexed as Trims of CH3 ;
The ST.D/R 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: 0-120%;
ST.D/R: counterclockwise adjustment to increase the servo amount. The maximum value is
120%.
ST.D/R: clockwise adjustment to decrease the servo amount. The minimum value is 0%.
TH.D/R: counterclockwise adjustment to increase the servo amount. The maximum value is
120%.
TH.D/R: clockwise adjustment to decrease the servo amount. The minimum value is 0%.
