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The Traxxas TQ-3 Radio System
Radio System Terminology
Learn terms related
to the TRX 2.5
Please take a moment to familiarize yourself with these radio-
racing engine
system terms. They will be used throughout this manual.
beginning on page 23.
Channel - The 27 MHz frequency band is divided into 6
Clearing your frequency - A routine, verbal check to make sure
Crystal (X-tal) - The plug-in device that determines which
Frequency band - The radio frequency used by the transmitter
12
channels so that up to six models can be operated
simultaneously. Each channel is referred to by its flag color and
channel number, as shown below.
Channel Frequency Band Flag Color Traxxas Part No.
1
26.995
Brown
2
27.045
3
27.095
Orange
4
27.145
Yellow
5
27.195
Green
6
27.255
nobody else in your area is operating on the same channel.
Always clear your frequency by calling out your channel
number before operating your model. Wait or move to
another area if your channel is already being used.
channel the radio system will operate on. For each channel,
there are two crystals, one for the receiver and one for the
transmitter. Of those two crystals, the one marked with the
lower number (.455 MHz lower) must be inserted into the
receiver.
to send signals to your SportMaxx. All Traxxas RTR models
operate on a 27 MHz frequency band.
Neutral position - The standing position that the servos seek
when the transmitter controls are at the neutral setting.
NiCad - Refers to rechargeable, nickel-cadmium batteries. The
most economical choice, since they may be recharged up to
500 times.
Receiver - The radio unit inside your SportMaxx that receives
signals from the transmitter and relays them to the servos.
Servos - Small motor units in your SportMaxx that operate the
throttle and steering mechanisms.
Three-channel radio system - The TQ-3 radio system,
2031
consisting of the receiver, the transmitter, and the servos. The
Red
2032
system uses three channels: one to operate the throttle, one to
operate the steering, and a third channel which is reserved for
2033
shifting with optional reverse module (sold separately).
2034
Transmitter - The hand-held radio unit that sends throttle and
steering instructions to your SportMaxx.
2035
Trim - The fine-tuning adjustment of the neutral position of the
Blue
2036
servos, made by turning the throttle and steering trim knobs
on the face of the transmitter.
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