User guide

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Two frame rates are available: F and N.
F = Fast (11ms)
N = Normal (16.5ms)
While most servos are compatible with the fast frame rate, some older analog servos require
the use of the slower normal frame rate.
Accessing the Frame Rate Function
1. Press the SCROLL and CHANNEL keys at the same time and hold.
2. Turn on the transmitter power switch to enter the System Mode.
3. Press the SCROLL key until FRM appears on the screen.
4. Press the INCREASE or DECREASE key to select the desired frame rate (N or F).
5. Press the SCROLL key to access the Auxiliary Channel 3 function.
6. To exit the System Mode, either turn the transmitter power switch off or press the
SCROLL and CHANNEL keys at the same time.
The Auxiliary Channel 3 function of the DX3.0 allows you to select from two different types
of Channel 3 servo travel movements, or to inhibit the Auxiliary Channel 3 function. Use the
information below to select the correct Auxiliary Channel 3 function type for your particular
installation. It is suggested the O function (factory preset) be selected for most applications.
LN = The LN, or linear, servo travel function is designed to be used when an engine fuel
mixture servo is required. This function is most commonly used with gas-powered RC racing
boats and is accessible through the Grip Lever A. In this function, the maximum travel of the
servo is determined by the Endpoint Adjust function, page 24. The servo neutral position can
be altered proportionately via the Grip Lever A for fuel mixture adjustment. When activated,
fuel mixture trim values are visible for the Direct Trim function, page 28.
2P = The 2P, or 2 position, Servo Travel function is designed to be used as a transmission
gear shift channel. This feature is designed for use only with vehicles such as the Traxxas
T-Maxx. This function is accessible through the Grip Button C or Grip Lever A if Grip Button
C is occupied by another function. The left and right travel values are determined by the
Endpoint Adjustment function, page 24.
Frame Rate
Auxiliary
Channel 3
Function
Select
AUX
Auxiliary Channel 3
Function
Linear Movement
(fuel mixture servo)
2P
AUX
Auxiliary Channel 3
Function
Non-linear Two-Position Movement
(Traxxas shiftable transmission use)
System Mode
System Mode
The DX3.0 has memory for four models. This feature allows for four different models to
be operated with the same transmitter (additional receivers and servos must be purchased
separately) or one model with four different race setups.
Accessing the Model Select Function
1. Press the SCROLL and CHANNEL keys at the same time and hold.
2. Turn the transmitter power switch on to enter System Mode.
3. If “MDL” does not appear on the screen, press the SCROLL key until MDL appears.
4. Press the INCREASE or DECREASE key to select the desired model number
(1, 2, 3, or 4).
5. Press the SCROLL key to access the Model Name Entry function.
6. To exit System Mode, either turn the transmitter power switch off or press the SCROLL
and CHANNEL keys at the same time.
The DX3.0 allows a three-character name to be input for each of the four models available.
The current model, with name, will then be displayed in the Normal display screen. This
feature is useful to help identify different models, setups, etc. For information on selecting
models 1, 2, 3 or 4, please refer to the Model Select function above.
Accessing the Model Name Entry Function
1. Press the SCROLL and CHANNEL keys at the same time and hold.
2. Turn on the transmitter power switch to enter the System Mode.
3. Press the SCROLL key until MD1 appears on the screen.
4. Press the INCREASE or DECREASE key to select the correct letter/number for the first
character (flashing).
5. To change the remaining two characters, press the CHANNEL key until the desired
character to be changed is flashing.
6. Press the SCROLL key to access the Frame Rate function.
7. To exit the System Mode, either turn the transmitter power switch off or press the
SCROLL and CHANNEL keys at the same time.
Model Select
MDL
I
Model Select Function
-
-
Model Number
Model Name
Entry
MDI
I
-
-
Flashing character indicates
the character to be adjusted
Current Model Number
System Mode
System Mode