1. Introduction
This manual provides essential information for the proper setup, operation, and maintenance of your LDARC X-BOSS FM900 2.4GHz FASST Receiver. Please read this manual thoroughly before using the product to ensure safe and efficient operation.
2. Product Overview
Image: The LDARC X-BOSS FM900 receiver, a compact circuit board featuring surface-mount components, an integrated antenna, and clearly labeled 'FM900' branding. This image illustrates the physical design and component layout of the receiver.
3. Features
- Offers great reliability, stable signal link, precision antenna, and high sensitivity.
- Compact and lightweight design for various applications.
- Integrated LNA (Low Noise Amplifier) for enhanced signal reception.
- RSSI (Received Signal Strength Indicator) output for real-time signal monitoring.
4. Specifications
| Specification | Detail |
|---|---|
| Item | FM900 Receiver |
| Weight | 1.2g |
| Dimensions | 11.5mm x 21mm |
| Voltage | 4-6V |
| Working Range | >900m (air distance without electromagnetic interference) |
| Protocol | FASST |
| Output 1 | LNA |
| Output 2 | RSSI |
| Supported Transmitters | T8FG, T14SG, T16SZ, T18SZ, T18MZ, T32MZ TX |
| Real-Time RSSI Compatibility | F3, F4, F7, etc. flight controllers |
5. Package Contents
- 1x LDARC X-BOSS FM900 Receiver
6. Setup
6.1. Installation
Carefully connect the receiver to your flight controller or power source, ensuring correct polarity and signal connections. Mount the receiver securely in your model, away from sources of electrical interference. Position the antenna for optimal signal reception, avoiding obstructions.
6.2. Binding Procedure
To establish communication between your transmitter and the FM900 receiver, follow these general binding steps:
- Power on your transmitter and select the FASST protocol.
- Place your transmitter in binding mode (refer to your transmitter's manual for specific instructions).
- Apply power to the FM900 receiver. The receiver's LED indicator should begin to flash, indicating it is ready for binding.
- Once the binding process is complete, the receiver's LED will typically turn solid green, indicating a successful connection.
- Power cycle both the transmitter and receiver to confirm the binding is retained.
7. Operating Instructions
After successful binding and installation, ensure your transmitter and receiver are powered on before operating your model. Always perform a range check and verify all control surfaces respond correctly before flight. Monitor the RSSI output on your flight controller or OSD (On-Screen Display) to ensure a strong signal link during operation.
8. Maintenance
- Keep the receiver clean and free from dust, dirt, and moisture.
- Regularly inspect antenna connections for damage or loose contacts.
- Avoid exposing the receiver to extreme temperatures or direct sunlight for prolonged periods.
- Ensure proper ventilation around the receiver during operation.
9. Troubleshooting
- No Signal/Loss of Link: Re-check binding procedure. Ensure transmitter and receiver are powered on. Verify antenna connection and placement. Check for potential interference sources.
- Intermittent Signal: Inspect antenna for damage. Ensure receiver is not too close to high-current wires or other electronic components that may cause interference.
- Receiver Not Powering On: Verify power connections and voltage supply (4-6V). Check for shorts or incorrect wiring.
- Incorrect Control Response: Confirm correct channel mapping in your flight controller or model setup. Re-bind the receiver if necessary.
10. Warranty and Support Information
LDARC products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the documentation provided at the time of purchase or contact your retailer. For technical support, please reach out to your authorized LDARC dealer or visit the official LDARC website for assistance.
