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TQ
ADVANCED TUNING GUIDE
i
Your Traxxas transmitter has a programmable Multi-Function knob
that can be set to control various advanced transmitter functions (set
to Cruise Control by default, see page 17). Accessing the programming
menu is done by using the menu and set buttons on the transmitter and
observing signals from the LED. An explanation of the menu structure
follows on page 34. Experiment with the settings and features to see if
they can improve your driving experience.
Traxxas Stability Management (TSM)
The Multi-Function knob on the TQi
transmitter can be programmed to
control Traxxas Stability Management
or TSM. TSM allows you to experience all the speed and acceleration
that was engineered into your Traxxas model by helping you to
maintain control of the vehicle in low-traction situations or over
rough terrain. TSM also dramatically improves braking control
and makes corrections for you, without intruding on your fun, or
creating unexpected side effects.
The recommended (default)
setting for TSM is to rotate the
knob to the 12:00 position (the
zero mark on the dial).
Turn the knob clockwise to
increase assistance; turn the
knob counterclockwise to
decrease assistance. Turn the
knob counterclockwise to its
stop to turn TSM completely off.
Note: TSM is deactivated
Decrease
assistance
automatically when driving or
braking in reverse.
TSM off
When driving on surfaces with
some traction, decrease the
TSM setting to allow the vehicle
to feel more "loose". On surfaces with very little traction (loose dirt,
smooth concrete, ice/snow), increase TSM to maximize acceleration
and control. TSM should be disabled when precise wheel placement
is needed, such as during rock crawling or scaling extreme terrain.
Note: TSM must be completely turned off while adjusting
steering trim.
Throttle Sensitivity (Throttle Exponential)
The Multi-Function knob can be set to control Throttle Sensitivity.
Throttle Sensitivity works the same way as Steering Sensitivity, but
applies the effect to the throttle channel. Only forward throttle is
affected; brake/reverse travel remains linear regardless of the Throttle
Sensitivity setting.
Steering Percentage (Dual-Rate)
The Multi-Function knob can be set to control the amount (percentage)
of servo travel applied to steering. Turning the Multi-Function knob
fully clockwise will deliver maximum steering throw; turning the
knob counterclockwise reduces steering throw (Note: turning the dial
counterclockwise to its stop will eliminate all servo travel). Be aware that
the steering End Point settings define the servo's maximum steering
throw. If you set Steering Percentage to 100% (by turning the Multi-
Function knob fully clockwise), the servo will travel all the way to its
selected end point, but not past it. Many racers set Dual-Rate so they
have only as much steering throw as they need for the track's tightest
turn, thus making the model easier to drive throughout the rest of the
course. Reducing steering throw can also be useful in making a model
easier to control on high-traction surfaces, and limiting steering output
for oval racing where large amounts of steering travel are not required.
Recommended setting
Braking Percentage
The Multi-Function knob may also be set to control the amount of brake
travel applied by the servo in a nitro-powered model. Electric models do
not have a servo-operated brake, but the Braking Percentage function
still operates the same way in electric models. Turning the Multi-Function
knob full clockwise will deliver maximum brake throw; turning the
knob counterclockwise reduces brake throw (Note: Turning the dial
counterclockwise to its stop will eliminate all brake action).
Increase
Throttle Trim
assistance
Setting the Multi-Function knob to serve as throttle trim will allow you
to adjust the throttle's neutral position to prevent unwanted brake drag
or throttle application when the transmitter trigger is at neutral. Note:
Your transmitter is equipped with a Throttle Trim Seek mode to prevent
accidental runaways. See the sidebar for more information.
Starting Over:
Restoring Factory Defaults
When programming your TQi
transmitter, you may feel the
need to start over with a clean
slate. Follow these simple steps
to restore the factory settings:
1. Turn the transmitter off.
2. Hold both MENU and SET.
3. Turn the transmitter on.
4. Release MENU and SET.
The transmitter LED will
blink red.
5. Press MENU 6 times. The
transmitter LED will blink
red 7 times repeatedly.
6. Press SET to clear settings.
The LED will turn solid
green and the transmitter is
restored to default.
Throttle Trim Seek Mode
When the Multi-Function knob is
set to throttle trim, the transmitter
remembers the throttle trim
setting. If the throttle trim knob
(Multi-Function knob) is moved
from the original setting while
the transmitter is off, or while the
transmitter was used to control
another model, the transmitter
ignores the actual position of
the trim knob. This prevents the
model from accidentally running
away. The LED on the face of the
transmitter will rapidly blink green
and the throttle trim knob (Multi-
Function knob) will not adjust the
trim until it is moved back to its
original position saved in memory.
To restore throttle trim control,
simply turn the Multi-Function
knob either direction until the LED
stops blinking.
TRX-4 • 31
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