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Radio System Terminology
Please take a moment to familiarize yourself with these radio-
system terms.They will be used throughout this manual.
Channel - The 27 MHz frequency band is divided into 6
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.
Clearing your frequency - A routine, verbal check to make sure
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.
Crystal (X-tal) - The plug-in device that determines which
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.
Frequency band - The radio frequency used by the transmitter
to send signals to your T-Maxx.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 T-Maxx that receives
signals from the transmitter and relays them to the servos.
Servos - Small motor units in your T-Maxx that operate the
throttle,shifting, and steering mechanisms.
Three-channel radio system - The TQ-3 radio system,
consisting of the receiver, the transmitter,and the servos.The
system uses three channels: one to operate the throttle,one to
shift the transmission, and one to operate the steering.
Transmitter - The hand-held radio unit that sends throttle and
steering instructions to your T-Maxx.
Trim - The fine-tuning adjustment of the neutral position of the
servos, made by turning the throttle and steering trim knobs
on the face of the transmitter.
Channel Frequency Band Flag Color Traxxas Part No.
1 26.995 Brown 2031
2 27.045 Red 2032
3 27.095 Orange 2033
4 27.145 Yellow 2034
5 27.195 Green 2035
6 27.255 Blue 2036
Learn terms related
to the TRX 2.5
engine beginning
on page 23.
The Traxxas TQ-3 Radio System
12