1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your GLOBACT Flysky FS-GR3E AFHDS 3-Channel 2.4GHz Receiver. Please read this manual thoroughly before use to ensure optimal performance and safety.
The FS-GR3E is a 3-channel receiver designed for use with RC cars and boats, compatible with specific Flysky AFHDS protocol transmitters. It operates on the 2.4GHz frequency band, offering reliable and interference-free communication.
2. Safety Information
- Ensure the receiver is powered within the specified voltage range (4.5-6.5V DC). Incorrect voltage can damage the unit.
- Keep the receiver away from moisture, dust, and extreme temperatures.
- Always connect components (servos, ESC) with correct polarity to avoid damage.
- Perform a range check before operating your RC model to ensure stable signal reception.
- This product is recommended for users aged 12 years and up.
3. Package Contents
Upon opening the package, verify that all items listed below are present:
- 1 x Flysky FS-GR3E Receiver
- 1 x Antenna Tube
- 1 x Bind Plug
Image 3.1: Contents of the FS-GR3E receiver package, including the receiver unit, an antenna tube, and a bind plug.
4. Product Overview
The FS-GR3E receiver features three channels, a bind port, and a power port. Understanding its layout is crucial for correct setup.
Image 4.1: Top view of the FS-GR3E receiver, highlighting the signal LED, Failsafe key, VCC, BIND/CH3, CH2, and CH1 ports.
Image 4.2: Detailed view of the receiver's ports and approximate dimensions (35mm length, 22mm width, 12mm height).
Key Components:
- Signal LED: Indicates receiver status (e.g., solid for bound, flashing for binding mode).
- Failsafe Key: Used for setting failsafe positions.
- VCC Port: Power input for the receiver.
- BIND/CH3 Port: Used for the binding process and as Channel 3 output.
- CH1, CH2 Ports: Output channels for connecting servos, ESCs, etc.
- Antenna: The white wire extending from the receiver, crucial for signal reception. Ensure it is positioned correctly and not obstructed.
5. Setup
5.1. Binding the Receiver to a Transmitter
The FS-GR3E receiver uses the AFHDS communication protocol. It is essential that your transmitter also operates on the AFHDS protocol for successful binding. If your transmitter uses AFHDS 2A, you must switch it to AFHDS mode according to your transmitter's manual before proceeding.
- Ensure your transmitter is turned OFF.
- Insert the bind plug into the BIND/CH3 port on the FS-GR3E receiver.
- Connect power to the VCC port of the receiver. The Signal LED on the receiver should begin to flash rapidly, indicating it is in binding mode.
- While holding the BIND button (or equivalent) on your transmitter, turn the transmitter ON.
- Observe the Signal LED on the receiver. Once it stops flashing and remains solid, the binding process is complete.
- Release the BIND button on the transmitter, then turn OFF both the transmitter and the receiver.
- Remove the bind plug from the receiver.
- Turn ON the transmitter first, then power ON the receiver. The Signal LED should be solid, confirming a successful connection.
Note: Always turn on the transmitter before the receiver and turn off the receiver before the transmitter to prevent unintended operation.
5.2. Connecting Components
Connect your Electronic Speed Controller (ESC) and servos to the appropriate channels on the receiver.
- CH1: Typically used for steering servo.
- CH2: Typically used for the ESC (throttle). This channel also supports the failsafe function.
- CH3/BIND: Can be used for an auxiliary function if available on your transmitter, or for binding.
- Ensure the antenna is routed away from metal parts and positioned vertically for optimal signal reception. The included antenna tube can help protect and position the antenna.
Image 5.1: The FS-GR3E receiver with its antenna extended, demonstrating proper antenna placement for improved signal range.
6. Operating
6.1. Basic Operation
After successful binding and connection of components:
- Turn on your transmitter.
- Power on your RC model (which powers the receiver).
- Verify that the Signal LED on the receiver is solid, indicating a stable connection.
- Test all control surfaces (steering, throttle) to ensure they respond correctly to transmitter inputs.
6.2. Failsafe Function
The FS-GR3E receiver includes a failsafe function on Channel 2 (throttle). This feature is designed to prevent your model from running out of control if signal is lost. When signal is lost, the receiver will automatically set Channel 2 to a pre-set position (typically neutral throttle or brake).
Refer to your transmitter's manual for instructions on how to set the failsafe position. Generally, this involves setting the desired throttle position on the transmitter, then activating the failsafe setting function while the receiver is powered and bound.
7. Maintenance
- Keep the receiver clean and free from dirt, dust, and moisture.
- Regularly inspect all connections for signs of wear or damage.
- Ensure the antenna wire is not cut, kinked, or damaged, as this can severely affect range.
- Store the receiver in a dry, cool environment when not in use.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Receiver LED not lighting up. | No power or incorrect polarity. | Check power source and ensure correct connection to the VCC port. |
| Receiver LED flashing rapidly, but not binding. | Transmitter not in binding mode, incorrect protocol, or too far. |
|
| Receiver LED solid, but no control. | Incorrect channel connections or damaged components. |
|
| Reduced range or intermittent signal. | Antenna obstruction or damage, environmental interference. |
|
9. Specifications
| Feature | Detail |
|---|---|
| Channels | 3 Channels |
| Model Type | Car / Boat |
| RF Receiver Sensitivity | -105 dbm |
| Modulation | GFSK |
| System Type | AFHDS |
| Sensitivity | 1024 |
| Failsafe | Yes (Channel 2) |
| Bind Port | Yes (Channel 3) |
| Power Port | Yes (VCC) |
| Power Input | 4.5-6.5V DC |
| Weight | 6.5 g (0.23 oz) |
| Antenna Length | 26 mm |
| Dimensions (L*W*H) | 37.6 x 22.3 x 13 mm (1.48 x 0.88 x 0.51 inches) |
10. Compatibility
The GLOBACT Flysky FS-GR3E receiver is compatible with various Flysky transmitters that utilize the AFHDS (Automatic Frequency Hopping Digital System) protocol. It is not compatible with AFHDS 2A protocol transmitters unless the transmitter can be switched to AFHDS mode.
Compatible transmitters include, but are not limited to:
- FS-GT2
- FS-GT2B
- FS-GT3B
- FS-GT3C
- FS-IT4S (when set to AFHDS mode)
- Other Flysky transmitters supporting AFHDS protocol.
Image 10.1: A compatibility chart showing various Flysky receivers and their compatible transmitters. The FS-GR3E column indicates compatibility with models like FS-GT2, FS-GT2B, FS-GT3B, FS-GT3C, and FS-IT4S.
11. Warranty and Support
For warranty information and technical support, please refer to the GLOBACT official website or contact your retailer. Keep your purchase receipt as proof of purchase.