GoolRC GA-4H-TX 4CH 2.4GHz Remote Controller and Receiver User Manual

Introduction

This manual provides detailed instructions for the GoolRC GA-4H-TX 4-channel 2.4GHz remote controller and receiver system. This system is designed for use with various remote-controlled vehicles, including 1/8, 1/10, 1/16, and 1/32 scale RC cars, boats, and tanks. Please read this manual thoroughly before operating your device to ensure proper setup and safe use.

Product Overview and Features

The GoolRC GA-4H-TX system utilizes advanced 2.4G technology with FHSS (Frequency-Hopping Spread Spectrum) across 67 channels, providing high resistance to interference and stable control. Key features include:

• 2.4G Technology: FHSS 67 channels for anti-jamming performance.
• Fast Response: Response time of 2 milliseconds, ensuring quick and precise control.
• Extended Range: Stable operation at distances from 200-300 meters.
• Wide Compatibility: Suitable for RC cars, RC boats, and RC tanks.
• Safety Features: Includes brake and fail-safe functions for out-of-control protection.

Image: The GoolRC GA-4H-TX transmitter highlighting features such as SVC Gyroscope, F/S anti-runaway function, throttle steering, detachable handle, liquid crystal display, and low pressure alarm.

Image: A detailed diagram of the GoolRC GA-4H-TX remote controller with numbered labels indicating various buttons, switches, and controls for operation.

Setup Instructions

1. Unboxing

Upon opening the package, ensure all components are present:

• GoolRC GA-4H-TX 2.4GHz Remote Controller
• GA-4H-RX Receiver
• User Manual (this document)

2. Receiver Connection

Connect the receiver to your RC vehicle's electronic components as illustrated below. Ensure correct polarity and channel assignment.

Image: Diagram showing the connection points on the GA-4H-RX receiver.

Connector Assignments:

1. Steering Servo (Channel 1): Connect your steering servo here.
2. Throttle Servo (Channel 2): Connect your throttle servo or Electronic Speed Controller (ESC) here.
3. Channel 3 Servo (Channel 3): For auxiliary functions.
4. AUX (Channel 4): Connect to an external battery or other auxiliary devices.

WARNING: Do not connect a battery with a voltage higher than 6.0V to the receiver, otherwise it will damage the electronic equipment.

3. Battery Installation (Transmitter)

Open the battery compartment on the underside of the transmitter. Insert the required batteries (typically AA batteries, refer to the battery compartment label for exact type and quantity) ensuring correct polarity. Close the battery compartment securely.

4. Binding Procedure (Transmitter and Receiver)

To establish communication between the transmitter and receiver, a binding process is required:

1. Ensure both the transmitter and receiver are powered off.
2. Connect a bind plug (usually included with the receiver or vehicle) to the 'BIND' port on the receiver.
3. Power on the receiver. The LED on the receiver should flash rapidly, indicating it is in binding mode.
4. While holding down the 'BIND' button on the transmitter (if available, otherwise refer to specific transmitter instructions), power on the transmitter.
5. The LED on the receiver should turn solid, indicating a successful bind. Release the bind button on the transmitter.
6. Power off both the receiver and transmitter. Remove the bind plug from the receiver.
7. Power on the transmitter first, then the receiver. The receiver LED should illuminate solid, confirming the connection.

If the binding process fails, repeat the steps. Ensure no other 2.4GHz devices are operating nearby that could cause interference.

Operating Instructions

Once the system is set up and bound, you can begin operating your RC vehicle. Always ensure a clear line of sight to your vehicle and operate within the specified range.

Basic Controls:

• Steering Wheel: Rotate left or right to control the vehicle's direction.
• Throttle Trigger: Pull back to accelerate forward, push forward to brake or reverse.

Image: The GoolRC GA-4H-TX transmitter and receiver installed in an RC car, illustrating the 2 millisecond fast response time for precise control.

Advanced Features:

• Fail-Safe Function: In case of signal loss, the fail-safe function will automatically return the throttle to a neutral or pre-set braking position to prevent runaway.
• Trim Adjustments: Use the trim buttons on the transmitter to fine-tune steering and throttle neutral positions if the vehicle drifts or moves without input.
• Dual Rate (D/R): Adjust the maximum steering angle for different driving conditions.
• End Point Adjustment (EPA): Set the maximum travel for steering and throttle channels.

Refer to the specific controls labeled on your transmitter (as shown in the Product Overview section) for detailed adjustment procedures.

Maintenance

Proper maintenance ensures the longevity and reliable performance of your GoolRC GA-4H-TX system.

• Cleaning: Use a soft, dry cloth to clean the transmitter and receiver. Avoid using solvents or harsh chemicals.
• Storage: Store the system in a cool, dry place away from direct sunlight and extreme temperatures. Remove batteries from the transmitter if storing for extended periods to prevent leakage.
• Antenna Care: Ensure the receiver antenna is not cut, bent sharply, or damaged. A damaged antenna can significantly reduce range and signal quality.
• Battery Check: Regularly check the transmitter batteries and replace them when the low voltage indicator appears.

Troubleshooting

If you encounter issues with your GoolRC GA-4H-TX system, refer to the following common problems and solutions:

Specifications

Detailed technical specifications for the GoolRC GA-4H-TX system:

• Brand: GoolRC
• Model: GA-4H-TX (Transmitter), GA-4H-RX (Receiver)
• Channels: 4CH
• Frequency: 2.4GHz FHSS
• Response Time: 2ms
• Control Distance: 200-300m
• Transmitter Power: (Typically 4x AA batteries, not explicitly stated in provided data)
• Receiver Voltage Range: 3.3V-6.0V (as per warning)
• Package Dimensions: 7.64 x 6.5 x 0.51 inches
• Item Weight: 0.458 ounces
• Manufacturer Recommended Age: 16 years and up

Image: The GoolRC GA-4H-RX receiver with approximate dimensions of 18mm height, 16mm width, and 12mm depth.

Warranty and Support

For warranty information, please refer to the documentation provided with your purchase or contact the seller directly. GoolRC products typically come with a manufacturer's warranty covering defects in materials and workmanship.

If you require technical support or have questions not covered in this manual, please contact GoolRC customer service or the retailer from whom you purchased the product. Keep your proof of purchase handy for any warranty claims or support inquiries.

No official product videos were found in the provided data.