EX4GT Transmitter Specifications

• Channels: 2 proportional channels + 1 three-stage switch channel + 1 two-stage-switch channel
• Voltage range: 4.2V-8.4V
• Transmitter frequency: 2.4G (FHSS)
• Modulation: GFSK
• Transmit power: <20dBm
• Range control distance: >120m
• Power supply: 4 cell AA batteries
• Adjust mode: Knob

EX4GT Receiver Specifications

• Channel number: 4 channels (standard PWM output)
• Voltage range: 4-6.5V
• Waterproof level: IP67
• Interface: Futaba, JR
• Size: 33 X 22 X 13mm
• Weight: 5g

EX4GT Transmitter Function

The EX4GT is a 4 channel transmitter which features channels for proportional steering, proportional throttle, AUX1 button channel and AUX2 3-stage switch channel.

The following functions can all be set:

• Throttle Trim (TH-TRIM)
• Steering Trim (ST-TRIM)
• Throttle Dual/Rate (TH-DR)
• Steering Dual/Rate (ST-DR)
• Throttle Reverse (TH-REV)
• Steering Reverse (ST-REV)
• Throttle Endpoint Adjustment (TH-EPA)
• Steering Endpoint Adjustment (ST-EPA)

The transmitter has an LED power display and alarm function, and TRIM, DR, EPA adjustment status display function.

EX4GT Receiver Function

EX4GT receiver function has 4 channels Steering (ST), Throttle (TH), AUX1 and AUX2 along with a FAILSAFE function.

Installing the Transmitter Batteries

The transmitter requires 4 AA batteries. Open the battery compartment and insert the batteries according to the polarity markings.

Diagram shows a hand inserting four AA batteries into the battery compartment of the transmitter, with polarity indicators (+/-) visible.

Power Display and LED Indicators

The transmitter features an LED power display indicating battery level. The receiver also has an LED indicator.

Transmitter LED Power Display:

• LED1/2/3/4/5: 100% Power
• LED1/2/3/4: 80% Power
• LED1/2/3: 60% Power
• LED1/2: 40% Power
• LED1: 20% Power
• Low voltage alarm: LED1/2/3/4/5
• LED sequence for low voltage alarm: LED1/2/3/4 -> LED1/2/3 -> LED1/2 -> LED1 -> LED1-5 FLASH, cycle loop

EX4GT Receiver Ports:

The receiver features several ports:

• Antenna: For signal reception.
• AUX2 Port: For accessory channel 2.
• AUX1 Port: For accessory channel 1.
• Throttle Port: Connects to the Electronic Speed Controller (ESC) for throttle control.
• Steering Port: Connects to the steering servo.
• Bind/Battery Port: Used for binding and connecting a battery.
• LED: Status indicator for the receiver.

Binding Procedure

Binding is the process of linking the transmitter and receiver.

Steps:

1. Step 1: Plug in the binding wire. Power on the receiver. The receiver LED will flash rapidly, indicating it has entered binding mode.
2. Step 2: Press the BIND key on the transmitter, then power on the transmitter. The transmitter will enter binding mode, and its LED will cycle.
3. Step 3: After successful binding, the receiver LED will remain solid. The transmitter exits binding mode after 5 seconds, and its LEDs will display the battery level.

Receiver LED Status

• Solid LED: Receiver is receiving a correct signal from the transmitter.
• LED Off (after 1 second): Receiver has not received a signal. Check if the transmitter is on and bound.
• Rapid Flashing LED: Receiver has entered binding mode.
• Slow Flashing LED: Receiver is in a disconnected state.

FAILSAFE Function

The ST (Steering) and TH (Throttle) channels have a FAILSAFE function. This sets the neutral position for steering and throttle when the signal is lost.

Setting FAILSAFE:

1. Turn on the transmitter and receiver and establish a normal connection.
2. Adjust the transmitter's TH and ST controls to the desired neutral positions for when the connection is lost.
3. Plug the binding wire into the receiver's bind port. After the receiver LED flashes twice, unplug the binding wire to complete the FAILSAFE setting.

RUNNING YOUR CAR

1. Turn On The Radio Controller

Switch on the power switch on the radio controller. Your radio is bound with your car automatically.

2. Turning On The Receiver Of Your Car

The ESC/Receiver switch is located under the bodyshell of the model. Switch on the ESC/Receiver switch.

Illustration shows the location of the ESC/Receiver switch, typically found beneath the car's bodyshell.

3. Check Steering Performance

Ensure the steering operates correctly.

• Centre: To keep the car running straight, keep the steering wheel centered.
• Turn Right: Turn the steering wheel to the right to steer the car to the right.
• Turn Left: Turn the steering wheel to the left to steer the car to the left.

4. Check Trigger Response

Verify the throttle trigger functions correctly for acceleration, braking, and reverse.

• A. Accelerate: Pull the trigger back to accelerate. Release it to decelerate.
• B. Brake/Neutral: To stop running your car, release the trigger to the neutral position.
• C. Reverse: Pushing the trigger forward activates reverse.

Important Note: The model switches between forward and reverse instantly for slow speed maneuverability. Excessive use of this feature can cause transmission and ESC damage.

TUNING CONTROLS

5. Tuning The Steering Trim

STEERING TRIM KNOB:

The ST-TRIM knob adjusts the steering trim to center the wheels and ensure the vehicle tracks straight. When adjusted, the LED will display the ST-TRIM value. After 5 seconds, the LED returns to indicate the battery level.

Diagram shows the ST-TRIM knob on the transmitter. An LED bar graph displays the trim value (e.g., 40% to 40% with 0% in the center) and then switches to show battery level.

6. Tuning The Throttle Trim

THROTTLE TRIM KNOB:

The TH-TRIM knob adjusts the throttle trim when the throttle stick is at neutral position, typically used for adjusting brakes. When adjusted, the LED will display the TH-TRIM value. After 5 seconds, the LED returns to indicate the battery level.

Diagram shows the TH-TRIM knob on the transmitter. An LED bar graph displays the trim value (e.g., 40% to 40% with 0% in the center) and then switches to show battery level.

7. To Tune The Steering Dual Rate Control Dial

STEERING D/R KNOB:

The ST-DR dial adjusts servo travel for steering. Adjust for maximum steering without straining the servo. Rotating fully anticlockwise sets zero rate. Turning anti-clockwise applies the dual-rate percentage. The LED light bar displays the DR value during adjustment, then returns to battery level display after 5 seconds.

Diagram shows the STEERING D/R dial on the transmitter. An LED bar graph displays the dual rate value (0% to 100%) and then switches to show battery level.

8. Steering/Throttle Reverse

This function adjusts the direction of movement for each channel relative to its input. The ST.REV/TH.REV switches act as reverse buttons for CH1 (Steering) and CH2 (Throttle). A switch position UP indicates reverse; DOWN indicates normal operation.

Diagram shows the ST.REV and TH.REV switches on the transmitter. 'R' indicates reverse, 'N' indicates normal. The switches are shown in different positions.