Introduction
The Radiomaster R8 Nano is a compact and high-performance 8-channel receiver designed for remote control aircraft and drones. It offers stable long-range control, SBUS output, and D8 compatibility, making it suitable for a wide range of transmitters including Radiomaster TX16S/TX12, FrSky X7, and Jumper T16/T18. Its small size and lightweight design are ideal for micro drones and applications where space and weight are critical.
Specifications
| Feature | Detail |
|---|---|
| Channels | 8 CH |
| Frequency Range | 2400-2483.5 MHz |
| Power Input Range | 4.5-6V |
| Signal Format | FrSky D8 Compatible |
| Output Format | SBUS |
| Telemetry | Supports RSSI return |
| Control Distance | More than 1km (up to 1.2km) |
| Antenna Length | Approximately 6cm (dual diversity) |
| Size | 17 x 11 mm |
| Weight | 2 grams |
| Material | Composite Material |
| Compatible Transmitters | Radiomaster TX16S/TX12, FrSky X7, Jumper T16/T18, RadioKing TX18 |
Setup and Binding
Follow these steps to connect and bind your R8 Nano receiver to your compatible transmitter.
Wiring Diagram
- GND: Connect to the ground (negative) terminal of your flight controller or power source.
- 5V: Connect to a 5V power supply from your flight controller or BEC. Ensure the voltage is within the specified 4.5-6V range.
- SBUS: Connect to the SBUS input on your flight controller.
- LED: The LED indicates the receiver's status.
- BIND: This button is used to initiate the binding process.
Binding Procedure
- Power on your transmitter and select the D8 protocol in the model settings. Ensure the transmitter is in binding mode.
- While holding down the BIND button on the R8 Nano receiver, connect power to the receiver (4.5-6V). The LED on the receiver should start flashing rapidly, indicating it's in binding mode.
- Once the binding is successful, the LED on the receiver will turn solid green.
- Power cycle both the receiver and the transmitter. After restarting, the receiver's LED should be solid green, indicating a successful connection.
Note: If the LED flashes slowly, it indicates that the receiver is not bound or has lost connection. Repeat the binding process if necessary.
Operation
Once successfully bound, the R8 Nano receiver will provide 8 channels of SBUS output to your flight controller. The receiver supports RSSI telemetry, which can be configured on your flight controller and transmitter to monitor signal strength.
- Signal Stability: The dual diversity antennas and advanced signal processing ensure stable control up to 1.2km.
- Low Latency: Experience ultra-low latency response, typically less than 3ms, for precise control.
- Failsafe: In case of signal loss, the receiver features failsafe protection to ensure the safety of your aircraft. Configure failsafe settings on your flight controller according to your aircraft type and safety requirements.
- RSSI Monitoring: Utilize the RSSI return functionality to monitor your signal strength in real-time via your transmitter's telemetry display. This helps in identifying potential range issues before they become critical.
Maintenance
To ensure the longevity and reliable performance of your R8 Nano receiver, consider the following maintenance tips:
- Antenna Placement: Ensure antennas are mounted correctly, ideally at 90-degree angles to each other, and away from carbon fiber, metal, or other signal-blocking materials. Avoid bending the antenna tips sharply.
- Environmental Protection: Protect the receiver from moisture, dust, and extreme temperatures. While robust, direct exposure to harsh elements can degrade performance.
- Cable Management: Secure all wiring to prevent accidental disconnections or damage from vibrations during flight.
- Firmware Updates: Periodically check the Radiomaster website for any available firmware updates for the receiver or your transmitter, as these can improve performance and add features.
Troubleshooting
- Receiver not binding:
- Ensure your transmitter is set to D8 mode.
- Verify the receiver is receiving power (LED should flash rapidly when binding button is held).
- Check for proper wiring of GND and 5V.
- Move the transmitter closer to the receiver during the binding process.
- Try power cycling both devices and repeating the binding steps.
- No signal or intermittent signal:
- Check antenna placement; ensure they are not obstructed or damaged.
- Verify the receiver is securely connected to the flight controller's SBUS port.
- Ensure the transmitter's power output is sufficient and its antenna is correctly installed.
- Check for sources of interference (e.g., FPV video transmitters, high-current wires) near the receiver.
- Monitor RSSI values if available to diagnose signal strength issues.
- Receiver LED is off or solid red:
- Off: No power. Check power connections (GND, 5V).
- Solid Red (if applicable, not explicitly stated for this model but common): Indicates a fault or no signal. Re-bind the receiver.
User Tips
- For optimal range and signal quality, ensure the receiver antennas are positioned away from other electronics and carbon fiber frames.
- Always perform a range check before flying, especially after making changes to your setup.
- Consider using heat shrink tubing or a small protective case for the receiver to shield it from physical damage and environmental factors.
Warranty and Support
For technical support, troubleshooting assistance, or warranty inquiries, please contact your retailer or the manufacturer directly. Keep your proof of purchase for any warranty claims.
