Channel assignment, Channel input configuration, Trim setup – Spektrum SPMR9900 DX9 User Manual
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SPEKTRUM DX9 • TRANSMITTER INSTRUCTION MANUAL
EN
Channel Assignment
The Channel Assignment function allows you to reassign almost
any receiver channel to a different transmitter channel. For
example, the receiver gear channel could be re-assigned to the
transmitter throttle channel.
1. Scroll to the receiver channel you wish to change.
2. Press the scroll wheel once and scroll left or right to change
the receiver input selection.
3. Press the scroll wheel a second time to save the selection.
IMPORTANT: You cannot assign a mix to a channel that has been
moved. Create the mix first, then move the channel.
Channel Input Configuration
The Channel Input Configuration 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 Configuration screen.
2. Scroll to the transmitter channel you wish to re-assign and
press the scroll wheel. The box around the current input
selection flashes.
3. Scroll left or right to select the desired control stick or switch.
4. Press the scroll wheel to save the selection.
Trim Setup
Use the Trim Setup screen to change the size of the trim step and
the trim type.
Trim Step
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.
Trim Type
The two Trim Type options are Common and F Mode.
Common trim type maintains the same trim values for all flight
modes.
F Mode trim type enables you to save trim values for individual
flight modes if you find, for example, the aircraft requires aileron
trim in Flight Mode 1 but not in Flight Mode 2.
Trim Assignment
In a few instances, you can reassign a trim to a different location.
Aircraft Model Type
Throttle
• Throttle Digital trim button (default)
• Left Analog lever
• Right Analog lever
Throttle Trim Type
• Common
• Flight Mode
Helicopter Model Type
Throttle and Pitch Hover Trim —Used to trim the throttle and pitch
setting for precision hovering. 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
governor settings in flight.
• L Trim
• R Trim.
Trim Location
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.