Spektrum DX18 SPM18000 User Manual

SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

The Channel Input Confi guration screen enables you to assign a 
transmitter channel to a different control stick or switch. 

1. Select NEXT on the RX Port Assignments screen to access 

the Channel Input Confi guration screen.

2. Scroll to the transmitter channel you wish to re-assign and 

press the scroll wheel. The box around the current input 
selection fl ashes.

3. Scroll left or right to select the desired control stick or 

switch.

4. Press the scroll wheel to save the selection.

Use the Trim Setup screen to change the size of the trim step 
and the trim type.

Adjusting the trim step value determines how many “clicks” of 
trim you input each time you press the trim button.  Changing 
the trim step value to 0 disables the trim for the channel.

To change the trim step value:

1. Scroll to the trim step channel you wish to change. 
2. Select the trim step value and scroll left or right to change 

the value.

3. Press the scroll wheel to save the selection.

The two Trim Type options are Common and F Mode. 
Common trim type maintains the same trim values for all fl ight 
modes. 
F Mode trim type enables you to save trim values for individual 
fl ight modes if you fi nd, for example, the aircraft requires aileron 
trim in Flight Mode 1 but not in Flight Mode 2. 

In a few instances, you can reassign a trim to a different loca-
tion.

Aircraft Model Type
Throttle
- Throttle Digital trim button (default)

- Left Analog lever
- Right Analog lever

Helicopter Model Type
Throttle and Pitch Hover Trim-Used to trim the throttle and pitch 
setting for precision hovering. Note: This does not affect normal 
throttle trim operation.
-Right Knob
-Left Analog Lever
-Right Analog Lever
-L Trim
-R Trim
Active Gyro and Governor Trim-Used to trim the gyro and gover-
nor settings in fl ight.
-L Trim
-R Trim.

Normal and Cross trim types are available. Normal trims align 
with the control stick; for example, the throttle trim is next to the 
throttle stick.
Cross trims reverse the position of the trims; for example, the 
Throttle trim is next to the Elevator stick and vice versa.
To change the Trim Position from Normal to Crossed, select 
Normal at the bottom of the Trim Setup screen and press the 
scroll wheel.
IMPORTANT: Crossed trims will cross both sets of trims for both 
gimbals.

The X-Plus Input Confi guration screen enables you to assign any 
X-Plus channel to any transmitter input.

1. Select NEXT on the Channel Input Confi g screen to access 

the X-Plus Input Confi g screen.

2. Scroll to the X-Plus channel you wish to change.
3. Press the scroll wheel once and scroll left or right to change 

the X-Plus Input for that X-Plus channel.