User manual

36 SPEKTRUM DX20 • TRANSMITTER INSTRUCTION MANUAL
EN
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SwitchandselecttheswitchtoactivateD/RandExpo
for that channel.
3. 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.
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.
The Throttle Cut menu option enables you to assign a switch
position to stop an engine or motor. Throttle Cut activates
regardless of Flight Mode.
When you activate Throttle Cut, the throttle channel moves to the
pre-programmedposition(normallyOff).
You may need to use a negative value to move the Throttle channel
to the off position.
CAUTION: Always test the model after making
adjustments to make sure the model responds to
controls as desired.
Tip: This menu item is called Motor Cut when Multicopter type
is selected.
You can use the Throttle Curve menu to optimize the throttle
response.Amaximumof7points,ataminimumof10%apart,are
available on the throttle curve.
To add points to a Throttle Curve:
1. Move the throttle stick to the position where you wish to add
the new point.
2.ScrolltoAddPt.andpressthescrollwheeltoaddthepoint.
To remove points from a Throttle Curve:
1. Move the Throttle stick until the cursor is near the point you
wish to remove.
2.ScrolltoRemovePt.andpressthescrollwheeloncetoremove
the point.
If you program multiple throttle curves and you wish to edit one of
the curves, that curve must be active in the Throttle Curve screen
before you can make any changes.
Tip: This menu item is called Motor Curve when Multicopter
type is selected.
FUNCTION LIST
D/R & Exponential
Differential (ACRO and SAIL Types only)
Throttle Cut
Throttle Curve