User's Manual

Digital Proportional Radio Control System
8
5.System Functions
This section focuses on the functions and how to use them.
5.1 Channel Description
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.
5.2 Channel Reverse
This function is used to adjust each channels direction of movement in relation to it’s input.
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 and CH4. For
multiplexing switching mode, see [5.5 Mode Switching].
TH.TRIMis the trims for CH2(throttle).
Adjustment range: -120us- + 120us, each step is 4us;
ST.TRIM + / TH.TRIM +: increase adjustment step;
ST.TRIM- / TH.TRIM-: Decrease adjustment step.
LED Indicator:
• When using the trim keys the G.LED will flash slowly on short presses and quickly on long presses.
• When the fine adjustment value is at the midpoint, the G.LED will flash twice slowly.
• When the fine adjustment value is at both ends (+ 120us / -120us), the trim adjustment is at its
maximum and as such G.LED will not flash(if the fine adjustment value has been adjusted to + 120us,
then press ST.TRIM + / TH.TRIM + key is invalid and G.LED has Instructions)