Introduction
This manual provides detailed instructions for the Beitian BP-270N GPS Receiver. This device is designed for marine applications, featuring a 12V RS232 interface with a 4800bps baud rate and NMEA protocol support. It includes a module antenna and is housed in a durable mushroom-shaped casing.
Setup Instructions
Follow these steps to properly set up your BP-270N GPS Receiver:
- Mounting: Securely mount the GPS receiver using its mushroom housing and the provided threaded base. Ensure it is placed in a location with a clear view of the sky for optimal satellite reception.
- Cable Connection: The receiver comes with a multi-wire cable for RS-232 connection. Identify the wires based on their colors:
- Red: VCC (Power Supply)
- Green: RX (Receive Data)
- White: TX (Transmit Data)
- Black: GND (Ground)
- Power Supply: Connect the Red (VCC) and Black (GND) wires to a stable 12V DC power source.
- Antenna: The receiver includes an integrated module antenna. No external antenna connection is typically required unless specified for a particular setup.

Image: The Beitian BP-270N GPS receiver with its mushroom-shaped housing, integrated cable with exposed wires (red, green, white, black), and a separate threaded mounting base.
Operating Instructions
Once the receiver is properly connected and powered, it will begin acquiring satellite signals. The BP-270N supports both GLONASS and GPS satellite navigation systems.
- Data Output: The receiver outputs navigation data via the RS-232 interface using the NMEA protocol. The default baud rate is 4800bps. Ensure your receiving device (e.g., chartplotter, computer) is configured to match these settings.
- Signal Acquisition: Upon power-up, the receiver will automatically search for available GPS and GLONASS satellites. Initial acquisition may take a few minutes, especially in cold start conditions or after being moved a significant distance.
- Data Interpretation: The NMEA sentences provide various navigation parameters such as latitude, longitude, altitude, speed, course, and satellite status. Refer to your host device's software manual for interpreting these data streams.
Maintenance
To ensure the longevity and optimal performance of your GPS receiver, consider the following maintenance guidelines:
- Cleaning: Periodically wipe the exterior of the mushroom housing with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials that could damage the casing.
- Connection Integrity: Regularly inspect the RS-232 cable and its connections for any signs of wear, corrosion, or damage. Ensure connections remain secure.
- Environmental Protection: While designed for marine environments, avoid prolonged submersion or exposure to extreme temperatures outside of its operating range.
Troubleshooting
If you encounter issues with your BP-270N GPS Receiver, try the following troubleshooting steps:
- No Power:
- Check the 12V power supply connection.
- Verify the Red (VCC) and Black (GND) wires are correctly connected and receiving power.
- No GPS Signal/Data:
- Ensure the receiver has a clear, unobstructed view of the sky. Obstructions like buildings, dense foliage, or metal structures can block satellite signals.
- Verify the RS-232 data connections (Green RX, White TX) are correct.
- Check the baud rate and NMEA protocol settings on your host device. They must match the receiver's output (4800bps, NMEA).
- Allow sufficient time for satellite acquisition, especially after initial setup or long periods of inactivity.
- Incorrect Position Data:
- Ensure the receiver is stationary during initial acquisition for best accuracy.
- Check for any strong electromagnetic interference near the receiver.
If problems persist after attempting these steps, please contact Beitian customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Model Number | BP-270N |
| Brand | Beitian |
| Connectivity Technology | Wired |
| Supported Satellite Navigation System | GLONASS, GPS |
| Resolution (Baud Rate) | 4800bps |
| Control Method | Remote |
| Special Feature | High sensitivity |
| Item Weight | 12.6 ounces |
| Package Dimensions | 6.89 x 4.53 x 3.74 inches |
| Included Components | GPS receiver |
| Map Type | Satellite |
| Are Batteries Included | No |
Warranty and Support
The Beitian BP-270N GPS Receiver comes with a 2-year manufacturer warranty. For any technical support, warranty claims, or further inquiries, please contact Beitian directly.
You can learn more about the manufacturer and their operations by watching the official company overview video below:
Video: An official video from Beitian showcasing their company facilities, including the front desk, office, manager's office, showroom, cultural wall, meeting room, R&D team, production workshop, warehouse, microwave dark room, and various equipment and instruments used in their operations. This provides an overview of the manufacturer's capabilities and environment.