10
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.
ESC (Electronic Speed Control) -
An electronic speed control is
the electronic motor control inside the model. The Villain uses
MOSFET power transistors to provide precise, digital
proportional throttle control. Electronic speed controls use
power more efficiently than mechanical speed controls so that
the batteries run longer. An electronic speed control also has
circuitry that prevents loss of steering and throttle control as
the batteries lose their charge.
Frequency band -
The radio frequency used by the transmitter
to send signals to your Villain. 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 -
Abbreviation for nickel-cadmium. The original
rechargeable hobby pack, NiCad batteries have very high
current handling, high capacity, and can last up to 1000
charging cycles. Good charging procedures are required to
reduce the possibility of developing a “memory” effect and
shortened run times.
NiMH -
Abbreviation for nickel-metal hydride. Rechargeable
NiMH batteries offer high current handling, and much greater
resistance to the “memory” effect. NiMH batteries generally
allow higher capacity than NiCad batteries. They can last up to
500 charge cycles. A peak charger designed for NiMH batteries
is required for optimal performance.
Receiver -
The radio unit inside your Villain that receives signals
from the transmitter and relays them to the servos.
Servo -
Small motor unit in your Villain that operates the
steering mechanism.
Transmitter -
The hand-held radio unit that sends throttle and
steering instructions to your Villain.
Trim -
The fine-tuning adjustment of the neutral position of the
servos, made by adjusting the throttle and steering trim
sliders on the face of the transmitter.
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.
Thermal Shutdown Protection -
Temperature sensing
electronics are used in the ESC to detect overloading and
overheating of the transistor circuitry. If excessive temperature
is detected, the unit automatically shuts down to prevent
damage to the electronics.
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
The Traxxas TQ Radio System
Содержание Villain 1506
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