FlySky FS-A3 2.4GHz 3CH RC CAR Receiver

The FlySky FS-A3 2.4GHz 3CH RC Car Receiver is a wireless receiver designed to connect compatible FlySky radio transmitters with RC vehicles and other surface models. It uses the AFHDS 2A communication protocol, which employs frequency hopping to provide reliable radio communication between the transmitter and receiver.

With three PWM output channels, the FS-A3 supports basic RC control functions such as steering, throttle, and auxiliary operations. It can be connected to compatible servos and electronic speed controllers through its channel ports.

The receiver operates on a 4.0–6.5V DC power supply and features a compact housing measuring 35 × 22 × 12mm. Its lightweight construction makes it suitable for installations where space and weight are important considerations.

The FS-A3 is designed for use with compatible FlySky AFHDS 2A transmitters. Before purchasing, users should verify the transmitter's wireless protocol because receivers using AFHDS, AFHDS 2, and AFHDS 2A are not automatically interchangeable.

Features

• Genuine FlySky FS-A3 2.4GHz receiver.

• Three PWM output channels.

• AFHDS 2A frequency-hopping communication protocol.

• Single antenna design for wireless signal reception.

• Manufacturer-stated operating range of 500–1500m in the air.

• Compatible with selected FlySky AFHDS 2A transmitters.

• Suitable for RC cars, trucks, boats, and other compatible surface models.

• Compact dimensions of 35 × 22 × 12mm.

• Lightweight design weighing approximately 6g.

• Operates from a 4.0–6.5V DC power supply.

Applications

• RC car and truck control systems.

• RC boat control systems.

• Steering servo control.

• Electronic speed controller signal reception.

• Auxiliary channel control.

• RC vehicle replacement receiver.

• DIY remote-controlled vehicle projects.

• RC hobby and model-building applications.

How to Use

1. Check that your FlySky transmitter supports the AFHDS 2A protocol and is compatible with the FS-A3 receiver.

2. Connect the receiver's channel outputs to the appropriate servo and ESC connections.

3. Supply the receiver with a regulated 4.0–6.5V DC power source through the appropriate receiver connection.

4. Follow the transmitter and receiver binding procedure to establish a wireless connection.

5. After binding, verify that the steering servo and throttle respond correctly to transmitter inputs.

6. Check the channel direction and control settings before operating the RC vehicle.

7. Perform a range check in a safe and open area before regular use.

Important Notes

• The FS-A3 uses the AFHDS 2A protocol. It is not compatible with every FlySky transmitter; verify protocol compatibility before purchasing.

• The stated 500–1500m range is a manufacturer-listed in-air figure and may vary depending on installation, antenna position, interference, and operating conditions.

• Do not exceed the specified 4.0–6.5V DC input voltage.

• Connect servos and ESCs according to the receiver's channel labels and polarity markings.

• Keep the antenna away from carbon fiber, metal shielding, and strong sources of electromagnetic interference.

• RSSI output is not supported.

• The standard FS-A3 specification does not list waterproof protection. Keep the receiver protected from water and excessive moisture.

• Turn on the transmitter before powering the receiver, and power off the receiver before switching off the transmitter.

Package Includes

- 1 × FlySky FS-A3 2.4GHz 3CH Receiver