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THE TRAXXAS TQ RADIO SYSTEM
RADIO SYSTEM TERMINOLOGY
Please take a moment to familiarize yourself with these radio and power system terms. They will be used throughout this manual.
BEC (Battery Eliminator Circuit) - The BEC can either be in the receiver or in the ESC. This circuit allows the receiver and servos to be powered by the main battery pack in an electric model. This eliminates the need to carry a separate pack of 4 AA batteries to power the radio equipment.
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 on the chart to the right.
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
Current - Current is a measure of power flow through the electronics, usually measured in amps. If you look at wire like a garden hose, current is a measure of how much water is flowing through the hose.
ESC (Electronic Speed Control) - An electronic speed control is the electronic motor control inside the model. Electronic speed controls use power more efficiently than mechanical speed controls so that the battery runs longer. An electronic speed control also has circuitry that prevents loss of steering and throttle control as the battery loses its charge.
Frequency band - The radio frequency used by the transmitter to send signals to your model. All Traxxas RTR models operate on a 27 MHz frequency band.
kV Rating - Brushless motors are often rated by their kV number. The kV rating equals
The kV increases as the number of wire turns in the motor decreases. As the kV increases, the current draw through the electronics also increases.
mAh – Abbreviation for milliamp hour. A measure of the capacity of the battery pack. The higher the number, the longer the battery will last between recharges.
Neutral position - The standing position that the servos seek when the transmitter controls are at the neutral setting.
NiCad - Abbreviation for
NiMH - Abbreviation for
Receiver - The radio unit inside your model that receives signals from the transmitter and relays them to the servos.
Resistance - In an electrical sense, resistance is a measure of how an object resists or obstructs the flow of current through it. When flow is constricted, energy is converted to heat and is lost. Traxxas power systems are optimized to reduce electrical resistance and the resulting
Servo - Small motor unit in your model that operates the steering mechanism.
Transmitter - The
Trim - The
Thermal Shutdown Protection - Temperature sensing electronics used in the electronic speed control detect overloading and overheating of the transistor circuitry. If excessive temperature is detected, the unit automatically shuts down to prevent damage to the electronics.
2-channel radio system - The TQ radio system, consisting of
the receiver, the transmitter, and the servos. The system uses two channels: one to operate the throttle and one to operate
the steering.
Voltage - Voltage is a measure of the electrical potential
difference between two points, such as between the positive battery terminal and ground. Using the analogy of the garden hose, while current is the quantity of water flow in the hose, voltage corresponds to the pressure that is forcing the water through the hose.
TRAXXAS • 9