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TQ
ADVANCED TUNING GUIDE
i
Decreased Steering Sensitivity (Negative Exponential):
By turning the Multi-Function knob clockwise, the steering sensitivity
of the model will be decreased. Note that a relatively large amount of
steering wheel travel results in a smaller amount of servo travel.
The farther you turn the knob, the more pronounced the effect
becomes. Decreased steering sensitivity may be helpful when driving
on low-traction surfaces, when driving at high speed, or on tracks that
favor sweeping turns where gentle steering inputs are required. The
ranges are exaggerated for illustrative purposes.
Turning Range
Effective Turning
at Transmitter
Range on Model
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
counter-clockwise reduces steering throw (note: turning
the dial counter-clockwise 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.
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 and Throttle End Points
The TQi transmitter allows you to choose the limit of the
servo's travel range (or its "end point") independently for
left and right travel (on the steering channel) and throttle/
brake travel (on the throttle channel). This allows you to
fine-tune the servo settings to prevent binding caused by
the servo moving steering or throttle linkages (in the case
of a nitro model) farther than their mechanical limits. The
end point adjustment settings you select will represent
what you wish to be the servo's maximum travel; the
Steering Percentage or Braking Percentage functions will
not override the End Point settings.
Steering and Throttle Sub-Trim
The Sub-Trim function is used to precisely set the
neutral point of the steering or throttle servo in the
event that simply setting the trim knob to "zero" does
not completely center the servo. When selected, Sub-
Trim allows finer adjustment to the servo output shaft's
position for precise setting of the neutral point. Always
set the Steering Trim knob to zero before making final
adjustment (if required) using Sub-Trim. If Throttle Trim
has been previously adjusted, the Throttle Trim will
need to be reprogrammed to "zero" before making final
adjustment using Sub-Trim.
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 counter-clockwise reduces
brake throw (Note: Turning the dial counter-clockwise to
its stop will eliminate all brake action).
Throttle Trim
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.
Setting Lock
Once you've adjusted all of these settings the way you like
them, you may want to disable the Multi-Function knob
so none of your settings can be changed. This is especially
handy if you operate multiple vehicles with a single
transmitter via Traxxas Link Model Memory.
Multiple Settings and the Multi-Function Knob
It is important to note that settings made with the
Multi-Function knob are "overlaid" on top of each other.
For example, if you assign the Multi-Function to adjust
Steering Percentage and set it for 50%, then reassign
the knob to control Steering Sensitivity, the transmitter
will "remember" the Steering Percentage setting.
Adjustments you make to Steering Sensitivity will be
applied to the 50% steering throw setting you selected
previously. Likewise, setting the Multi-Function knob to
"disabled" will prevent the knob from making further
adjustments, but the last setting of the Multi-Function
knob will still apply.
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