Spektrum DX8 - Manual (Page 25)

25 SPEKTRUM DX8 • RADIO INSTRUCTION MANUAL
ThROTTLE CUT
The Throttle Cut function allows you to shut off an engine with the Trainer switch,
Gear switch or the Right or Left trimmer. When you activate the programmed
switch, the throttle channel is driven to it’s preprogrammed value normally off.
This effectively kills the engine. Release the programmed throttle cut switch/
trimmer, and normal throttle operation resumes.
To Activate Throttle Cut and Assign it to a Switch or Trimmer
With the transmitter on and the main or telemetry screen displayed, press the
roller. The Function list displays.
Rotate the roller to highlight Throttle Cut then press to access the Throttle Cut
screen.
Highlight Inhibit then press the roller to access the switch options.
Rotate the roller to the desired switch to cut the throttle (Trainer, Gear, Mix , L trim
or R trim) then press the roller to program that switch.
Program a Throttle Cut position. Note that 0%= low throttle, mid trim and
negative values are available. To test the Throttle Cut function, activate the
programmed switch. Note the throttle servo position or the position of the throttle
channel in the servo monitor. The system should drive the servo position to the
low throttle position when you activate Throttle Cut.
ThROTTLE CURvE
The Throttle Curve function allows throttle output vs. input positions to be
adjusted. This is typically used to alter the throttle response to give a linear rate
or to adjust the throttle response sensitivity when hovering or torque rolling. You
can program a single curve (switch to On) or up to three curves and select them
via a programmed switch. The screen displays a graphic 5-point throttle curve on
its left side to aid in selecting throttle curve values. An Expo function is available
that smoothes out the Throttle curve.
To Program the Throttle Curve Function
With the transmitter on and the main or telemetry screen displayed, press the
roller. The Function list displays.
Rotate the roller to highlight Throttle Curve then press the roller to access the
Throttle Curve screen.
Selecting a Switch
Rotate the roller to highlight Switch then press the roller to access the switch
options.
Choose the desired switch to change to different throttle curves or select On if you
only want one curve to always be active.
Adjusting the Curve
With the switch listed at the bottom of the screen in the position desired for this
curve, rotate the roller to highlight one of the five available throttle curve values
(Low, 25%, 50%,75, High). Press the roller to access.
Rotate the roller to adjust the selected point to desired output. Note the position
on the graph at the left of the screen.
Repeat this for all desired points.
Note: if you select a switch position in Throttle Curve, move the switch
to the remaining position(s) and adjust the throttle curve values for those
switch positions.
EN