
36 SPEKTRUM DX9 • TRANSMITTER INSTRUCTION MANUAL
EN
Swashplate
The Swashplate menu option enables you to adjust the following:
• SwashplateMix
• Exponential
• E-Ring
• ElevatorCompensation
UsepositiveornegativeSwashplatemixvaluesasneededfor
correct direction response of the helicopter.
BeforemakingadjustmentstotheSwashplatemix,makesurethe
throttle/collective pitch input moves the entire swashplate up or
down. If the servos are not moving in the same direction, reverse
them as necessary in the Servo Setup menu option.
When the entire swashplate moves up or down:
1.AdjustthemixvaluefortheAileronandElevatorchannels.If
the servos do not move in the correct direction, change the
directionofthemix—forexample,apositivevalueinsteadof
a negative value.
2.AdjustthemixvalueforthePitch.Iftheswashplatedoesnot
move in the correct direction, change the direction of the value
(negative instead of positive).
AlwaysenableExpowhenusingastandardrotating-armservo.
TheExpodeliverslinearmovementoftheswashplatefroma
standardrotaryservo.WhenExpoisinhibited,thearmona
rotary servo moves on a curved path with decreased swashplate
movementattheextremesoftheservoarmtravel.
NOTICE: DonotenableExpowhenusingalinearservo.
Electronic E-Ring
This feature prevents over driving servos by limiting servo travel if
thesumofyourcyclicandpitchinputsexceedsservolimits.
Gyro
The Gyro menu option enables you to assign a gyro gain value
to an independent switch or a Flight Mode. Assign the receiver
channel connected to the gyro, then assign the switch for gyro
options. You can also assign values to available switch positions
(from 1 to 5 rates are available, depending on the switch
assigned). Make sure the gyro operates correctly and
compensates in the correct direction.
Governor
The governor function is used to set the rotor head speed when
used with a governor installed in the helicopter. The governor
onboard will control the engine RPM to maintain the head speed
desired. You can program values for each switch position or flight
mode. RPM values can be programmed in 0.5% steps.
To Program the Governor Function:
1. Access the Governor menu option.
2. Program the RPM values by rotating the scroll wheel to the
desired value.
3. Press the scroll wheel and rotate it to the desired value. Press
the scroll wheel again to save the value.
IMPORTANT: The value in the display is the corrected value.
0%is1.5msorOFFformostgovernors.Repeatthisforall
governor settings.
4. Assign the output channel for the Governor. The Governor and
the Gyro must be on different channels. We recommend using
AUX2 for the Governor output channel.
5. Select a switch to control the Governor.
6. Press the BACK button to save the selections and return to the
Function List.
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