Spektrum SPM18100 DX18 User Manual

Page 27

SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

D/R & Exponential

Dual Rates and Exponential are available on the aileron, elevator
and rudder channels.
To adjust the Dual Rate and Exponential:

1. Scroll to the channel and press the scroll wheel once. Scroll

left or right to select the channel you wish to change and press
the scroll wheel again to save the selection.

2. Scroll to dual rate and press the scroll wheel. Scroll left or right

to change the value and press the scroll wheel again to save
the selection.

Exponential affects control response sensitivity around center but
has no affect on overall travel. Positive exponential decreases the
sensitivity around the center of gimbal movement.

Differential (Air and Sail Types only)

The Differential screen enables you to increase or decrease the
amount of differential between aileron control surface throws.
Positive Differential values decrease the amount of “down” travel
without affecting the “up” travel on the opposite control surface.
Negative Differential values decrease the amount of “up” travel
without affecting the amount of “down” travel on the opposite
control surface.
The Differential menu option only appears when a multi-servo
aileron wing type is active in Aircraft Type.
To adjust the Differential:

1. Scroll to Switch and press the scroll wheel. Scroll right to

select On (Differential is always on) or assign the differential to
a switch position.

2. Press the scroll wheel a second time to save the selection.

3. Scroll to the percentage selection and press the scroll wheel

once to change the value.

4. Press the scroll wheel again to save the selection.

V-Tail Differential (Air and Sail Types only)

The V-Tail Differential screen enables you to increase or decrease
the amount of differential between control surface throws.
Positive Differential values decrease the amount of “down” travel
without affecting the “up” travel on the opposite control surface.
Negative Differential values decrease the amount of “up” travel
without affecting the amount of “down” travel on the opposite
control surface.
The V-Tail Differential menu option only appears when V-Tail A or
V-Tail B is active in Aircraft Type.
To adjust the V-Tail Differential:

1. Scroll to Switch and press the scroll wheel. Scroll right to

select On (Differential is always on) or assign the differential to
a switch position.

2. Press the scroll wheel a second time to save the selection.
3. Scroll to Diff: and press the scroll wheel once to change the value.
4. Press the scroll wheel again to save the selection.