3
Aileron Control (CH1): When the aileron stick is moved to the right, the right aileron is raised and the left
one lowered, and the aircraft rolls to the right. When the aileron stick is moved to the left, the ailerons
move in the opposite directions and the aircraft rolls to the left.
Elevator Control (CH2): When the elevator stick is pulled back, the tail elevator is raised and the aircraft
pitches up. When the elevator stick is pushed forwards the elevator is lowered and the aircraft pitches
down.
Throttle Control (CH3): When the throttle stick is pushed forward, the engine power increases. When the
stick is pulled back, the engine power decreases.
Rudder Control (CH4): When the rudder stick is moved to the right, the rudder moves to the right and the
aircraft yaws to the right. When the rudder stick is moved to the left, the rudder moves to the left and the
aircraft yaws to the left.
Switch Control (CH5): When the switch is moved, the fifth channel changes from 100% to -100%, or
vice versa. This can be used to operate landing gear, lights etc.
Reverse Switches (all): These reverse the operating directions of the four joystick channels.
Trimmers (all): these adjust the neutral positions of the four joystick channels.
Power Switch: Push forwards to turn the transmitter ON.
Power LED: Indicates that the transmitter is ON. When the LED flashes, you should stop using the
transmitter and replace the batteries.
Elevon Mixing switch: Used to turn ON/OFF the elevon mixing function. This mixes CH1 (Aileron) and
CH2 (Elevator), operating them in unison (Elevator stick) or opposition (Aileron stick). Intended for delta-
wing aeroplanes, this function also allows quadcopters to be switched between “x” and “+” configurations.
The transmitter is powered by 8 x AA batteries. These should be installed according to the polarity
indications embossed inside the battery compartment. Alkaline batteries are recommended.
2) Receiver
The receiver has seven channels, the first five of which will operate with the T4EU transmitter. The
receiver may be powered via any of the channel output sockets. The antenna is short, as is typical in
2.4GHz systems. Please note that the silver tip section is the active part. This should be positioned
vertically in an exposed location within the model, away from carbon fibre components.
The receiver can operate on a supply of 4.5 – 6.5V. For reliable, safe operation it is important to ensure that
the voltage does not drop below 4.5V, even when the servos are loaded. For large models we recommend
using a voltmeter to check that the voltage remains above 4.5V even when all servos are heavily loaded by
manually applying back pressure against the control surfaces.
3) Binding the Receiver to the Transmitter
To establish a link when using the system for the first time, the transmitter and receiver need to be bound
together. After this, the receiver will not respond to another transmitter unless re-bound. Binding is carried
out as follows:
1) Switch on the transmitter, and lower the throttle.
2) Connect power to the receiver and wait for the green light to glow solidly.
3) Press and hold the bind button (in a recess at the end of the receiver) for about 2 seconds, until the
green light starts to flash, then release. After about 5 seconds the light will glow solidly again, and the
model’s servos will twitch or its control circuitry will indicate a signal received. The system is now
ready to use.
