Thank you for purchasing the Traxxas Top Qualifier radio sys-
tem. This manual contains the instructions you will need to setup,
and operate, your new radio system. Look over this entire manual
and examine the radio system carefully before using it. If for
some reason you think this system is not what you wanted, then
do not continue any further. Your hobby dealer
absolutely
cannot
accept a radio system for return or exchange after it has been
used. If you have any questions about your new radio system,
then call Traxxas’ toll-free technical support line at 1-888-TRAXXAS
(U.S.A. residents only. Outside the U.S. call 972-
265-8000
).
Technical support is available Monday through Friday, from 8:30
am
to 5:30
pm
c
entral
t
ime. We hope that you will enjoy the
performance and features of your new radio system.
If this is your first experience with hobby-class, component
radio equipment, please read the following terms and definitions.
These terms will be used throughout the rest of these instructions.
TWO-CHANNEL RADIO SYSTEM
- The radio system consists
of the RECEIVER, the TRANSMITTER, the SERVOS, and the
CRYSTALS. It has two channels, one to operate the throttle, and
one to operate the steering.
TRANSMITTER
- The TRANSMITTER is the hand-held radio unit
which sends throttle and steering instructions to the receiver.
RECEIVER
- The RECEIVER is the radio unit inside the model
which receives signals from the TRANSMITTER, and relays them
to the SERVOS.
SERVO
- The SERVOS are the small motor units in the model
which operate the steering and throttle mechanisms.
FREQUENCY BAND
- The FREQUENCY band is the radio
frequency that the transmitter uses to send signals to the model.
The FREQUENCY BAND for radio control vehicles is 27 MHZ
(mega-hertz).
CHANNEL
- The 27 MHZ FREQUENCY BAND is divided into 6
CHANNELS so that up to six models can be operated simultane-
ously. These CHANNELS are referred to by their number and flag
color. The chart below lists the channels and their flag colors.
CRYSTAL (X-TAL)
- The CRYSTAL is the plug-in device that
determines which channel (1-6) that 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 in the RECEIVER.
CLEARING YOUR FREQUENCY
- CLEARING your frequency
means checking to be sure no one else in the area is operating
on the same CHANNEL as you. You should always do this before
operating your model.
B.E.C.
- This abbreviation stands for battery eliminator circuit. Its
purpose is to allow the RECEIVER to operate on the model’s main
battery pack, rather than carry the extra weight of 4 “AA” batteries.
NICAD (Ni-Cd)
- These terms stand for rechargeable, nickel cad-
mium batteries. These batteries are most economical and can be
recharged up to 500 times.
NEUTRAL POSITION
- The NEUTRAL POSITION is the standing
position that the SERVOS seek when the TRANSMITTER con-
trols are at neutral.
TRIM
- TRIM is the fine-tuning adjustment of the NEUTRAL
POSITION of the SERVOS. This adjustment is made by turning the
throttle and steering trim knobs on the face of the TRANSMITTER.
27MHZ
FLAG COLOR
CHANNEL #
TRAXXAS PART#
26.995
BROWN
1
2031
27.045
RED
2
2032
27.095
ORANGE
3
2033
27.145
YELLOW
4
2034
27.195
GREEN
5
2035
27.255
BLUE
6
2036
1
OPERATING INSTRUCTIONS
TWO-CHANNEL
DIGITAL PROPORTIONAL
RADIO SYSTEM
MODEL 2203
Includes:
TQ Transmitter
2 Servos
Four-cell battery holder*
Receiver crystal
Transmitter crystal
MODEL 2204
Includes:
TQ Transmitter
1 Servo
Electronic speed control
Receiver crystal
Transmitter crystal
*Radio systems sold as part of a ready-to-run package
may not include the battery holder.
