Beitian BS-708 GPS Receiver User Manual

1. Introduction

The Beitian BS-708 GPS Receiver is a high-performance, compact positioning module designed for a wide range of applications, including drones, flight control systems, and general tracking. Featuring a 7th generation chipset and a built-in active antenna, it offers reliable and accurate positioning data. This manual provides essential information for setting up, operating, and maintaining your BS-708 GPS receiver.

Figure 1: Beitian BS-708 GPS Receiver (Top View)

2. Product Features

• Advanced Chipset: Utilizes a 7th generation chipset for enhanced performance.
• Multi-System Support: Supports GPS L1, SBAS L1, and QZSS L1 frequencies for broad compatibility and accuracy.
• High Sensitivity: Features 56 search channels and high sensitivity tracking (-162dBm) for quick and reliable satellite acquisition.
• Integrated Memory: Equipped with 4M FLASH memory for permanent storage of configuration settings.
• Built-in Active Antenna: Ensures stable and strong signal reception without the need for an external antenna.
• USB 2.0 Interface: Provides a standard USB connection, supporting auto-adapted baud rates from 4800bps to 921600bps for flexible integration.
• Compact Design: Small form factor (56.7mm x 56.7mm x 18mm) and lightweight (70 grams) for easy integration into various projects.

3. Technical Specifications

4. Setup Instructions

1. Driver Installation:

   Before connecting the BS-708 to your computer or flight controller, ensure that the necessary USB drivers are installed. For most operating systems, the device will be recognized as a standard serial port. If drivers are not automatically installed, please refer to the manufacturer's website for specific driver downloads for your operating system.

2. Physical Connection:

   Connect the USB cable of the BS-708 GPS Receiver to an available USB port on your computer or to the designated USB port on your flight controller. Ensure the connection is secure.

   

   Figure 2: BS-708 GPS Receiver with USB Cable

3. Software Configuration:

   Once connected, open your preferred GPS monitoring software (e.g., u-center for u-blox based modules, or your flight control software). Select the correct COM port assigned to the GPS receiver and configure the baud rate. The BS-708 supports auto-adapted baud rates, but a common starting point is 9600 or 115200 bps.

   

   Figure 3: Example of GPS Data Output in Software

   

   Figure 4: Example of GPS Sky View in Software

4. Initial Satellite Acquisition:

   Place the GPS receiver in an open area with a clear view of the sky. The first satellite acquisition (cold start) may take up to 29 seconds. Subsequent warm starts will be faster. Ensure the device is stationary during initial acquisition for best results.

5. Operating Instructions

Once the BS-708 GPS Receiver is successfully set up and acquiring satellite signals, it will continuously output NMEA data (or other configured protocols) through its USB interface. This data includes latitude, longitude, altitude, speed, heading, and satellite information.

• Data Monitoring: Use your connected software to monitor the real-time GPS data. Verify the number of satellites in view and the reported position accuracy.
• Application Integration: Integrate the GPS data stream into your target application (e.g., flight controller, navigation software, data logger). Refer to your application's documentation for specific integration steps.
• Optimal Placement: For best performance, ensure the GPS receiver has an unobstructed view of the sky. Avoid placing it near metallic objects or strong electromagnetic interference sources that could degrade signal quality.

6. Maintenance

• Cleaning: Keep the exterior of the GPS receiver clean and free from dust and debris. Use a soft, dry cloth for cleaning. Do not use harsh chemicals or abrasive materials.
• Storage: When not in use, store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
• Cable Care: Avoid bending or crimping the USB cable excessively to prevent internal damage.
• Firmware Updates: Periodically check the manufacturer's website for any available firmware updates. Follow the provided instructions carefully for any update procedures.

7. Troubleshooting

8. User Tips

• Global Compatibility: The BS-708 GPS receiver is designed to work globally, including regions like Saudi Arabia, as it supports standard GPS, SBAS, and QZSS signals. Performance may vary based on local satellite visibility and environmental conditions.
• Cold Start Patience: For the very first use or after a long period of inactivity, allow sufficient time (up to 29 seconds) for the receiver to perform a cold start and acquire satellites.
• Firmware Updates: Regularly check the manufacturer's website for firmware updates to ensure optimal performance and access to new features.

9. Warranty and Support

This product is covered by a standard manufacturer's warranty. For detailed warranty terms, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.