;e “band” refers to the type of radio signal used to control your vehicle. ;e most common band on the market
is 2.4GHz, meaning that your vehicle operates within the
2.4GHz frequency spectrum. ;ese systems are great
because the transmitter and receiver automatically sync
together without interfering with other drivers’ signals.
Virtually all radio systems are now
2.4GHz, but older models may
have an AM or FM radio system.
;ese require the transmitter
and receiver to be on the same
frequency, or “channel.” ;is can
be a problem if you and another
driver are on the same channel as
your radio systems will interfere
with each other, causing a loss of
control. Systems that are 2.4GHz
automatically locate and lock onto
an open channel to prevent this
type of interference.
;is can seem confusing, but there’s a second meaning for “channels” in RC. Any radio
system for RC cars has at least two channels: one for steering and one for throttle. Some
radios have more channels; for example, Traxxas includes a 3-channel radio with the
Revo 3. 3, and uses the third channel to operate the transmission’s reverse-gear mechanism. Each channel is represented by a numbered port on the receiver. Channel one is
steering, channel two is throttle, and additional channels can be used for di;erent functions, depending on the model. Just remember “one to turn, two to burn,” and you’ll
always remember which channel is for steering and which is for the throttle.
DIGI TAL TRIMS
;is transmitter uses digital trim switches instead of
knobs for its three channels. Just click the lever in the
direction you need.
Modern 2.4GHz radio systems
(above) automatically locate an
open channel and lock onto it.
Old-style AM and FM radio systems (right) use plug-in crystals
to set the channel they are on.
;is receiver’s channels are labeled by number; some use abbreviations for the words steering and throttle
instead — for example, “STR” and “THR.” ;e “B” port is for a battery, as a nitro model would require.