Beitian BT-920C High Precision GNSS Receiver RTK User Manual

1. Introducció

The Beitian BT-920C is an all-in-one high-precision GNSS receiver designed for centimeter-level positioning. It integrates a multi-frequency antenna and receiver module, supporting a wide range of satellite systems including GPS, GLONASS, BDS, GALILEO, QZSS, and SBAS. This manual provides essential information for the proper setup, operation, and maintenance of your BT-920C receiver.

2. Producte acabatview

2.1. Característiques clau

• All-in-one design with integrated antenna.
• Multi-system support: GPS, GLONASS, BDS, GALILEO, QZSS, SBAS.
• RTK high accuracy for centimeter-level positioning.
• Stable signal reception and good outdoor performance.
• Vol operatiu amplitagrang e (5V-36V).
• Robust IP67 waterproof rating.

2.2. Components

The standard package for the BT-920C typically includes:

• BT-920C Receiver Body
• Data Cable (5m standard length)
• Accessoris de muntatge

3. Especificacions

4. Configuració

4.1. Muntatge del receptor

1. Select a clear, unobstructed location for mounting the receiver, ensuring a clear view del cel per a una recepció òptima dels satèl·lits.
2. The BT-920C features a standard 5/8 inch mounting thread on its base. Securely attach the receiver to a compatible pole or mounting bracket.
3. Ensure the receiver is mounted vertically and level for best performance.

4.2. Connecting Power and Data

The receiver uses a 4-pin aviation plug for power and data communication. Refer to the pinout diagram below for correct wiring:

• Pin 1: VCC (5V-36V DC Input)
• Pin 2: GND (terra)
• Pin 3: TXD (Data Transmit)
• Pin 4: RXD (Data Receive)

1. Connect the provided data cable to the 4-pin aviation plug on the receiver's base.
2. Connect the other end of the data cable to your RTK base station, rover, or data logging device.
3. Ensure the power supply connected to VCC and GND is within the specified 5V-36V range.

5. Instruccions de funcionament

5.1. Encès

Once the power and data cables are correctly connected, apply power to the receiver. The red indicator light on the receiver's base should illuminate, indicating power is supplied.

5.2. GNSS Signal Acquisition

After powering on, the receiver will begin searching for satellite signals. The blue indicator light will flash or change state to indicate GNSS status:

• Blau sòlid: Indicates a stable GNSS fix.
• Blau intermitent: Indicates searching for satellites or an unstable fix.

Assegureu-vos que el receptor tingui una visió clara view of the sky for optimal signal acquisition. Initial cold start acquisition may take up to 30 seconds.

5.3. RTK Operation

For centimeter-level accuracy, the BT-920C must operate in RTK mode, requiring correction data from a base station. The RTK working principle involves a base station transmitting correction data to the rover (your BT-920C receiver) to eliminate errors and achieve high precision.

1. Configure your base station to transmit RTCM 3.x correction data.
2. Ensure your BT-920C receiver is configured to receive RTCM 3.x data at the appropriate baud rate (e.g., 115200bps). This configuration is typically done via software connected to the data port.
3. Once correction data is received and processed, the receiver will achieve RTK fixed solution, providing centimeter-level positioning.

5.4. Data Output

The receiver outputs GNSS data in NMEA 0183 or RTCM 3.x formats. The baud rate can be configured between 4800bps and 115200bps to match your connected device's requirements.

6. Manteniment

• Neteja: Regularly clean the exterior of the receiver with a soft, damp tela. No utilitzeu productes químics o materials abrasius.
• Cura del connector: Keep the 4-pin aviation plug and TNC-K antenna connector clean and free from dirt or moisture. Ensure connections are secure to maintain signal integrity and power supply.
• Emmagatzematge: When not in use, store the receiver in a dry, cool place within the specified storage temperature range (-40°C to +85°C).
• Actualitzacions de firmware: Comproveu el del fabricant weblloc web periòdicament per obtenir actualitzacions de firmware per garantir un rendiment òptim i l'accés a noves funcions.

7. Solució De Problemes

7.1. No Power Indicator (Red Light Off)

• Check the power cable connection to the 4-pin aviation plug.
• Comproveu la font d'alimentació voltage is within the 5V-36V range and is providing sufficient current.
• Inspeccioneu el cable d'alimentació per detectar qualsevol dany.

7.2. No GNSS Fix (Blue Light Flashing Continuously)

• Ensure the receiver has a clear, unobstructed view of the sky. Obstacles like buildings, trees, or dense foliage can block satellite signals.
• Move to an open area if operating indoors or near tall structures.
• Allow sufficient time for cold start acquisition (up to 30 seconds).
• Verify the antenna connector (TNC-K) is securely attached.

7.3. RTK Not Achieving Fixed Solution

• Confirm that the base station is transmitting correction data in RTCM 3.x format.
• Check the data connection and baud rate settings between the receiver and the device providing correction data.
• Ensure the communication link for correction data is stable and free from interference.
• Verify the distance to the base station is within the effective range for RTK corrections.

7.4. Data Output Issues

• Check the data cable connection to your receiving device.
• Verify that the baud rate and data format settings on the receiver match those configured on your receiving device.
• Ensure the receiving device's software is correctly configured to interpret NMEA 0183 or RTCM 3.x data.

8. Consells d'usuari

No hi havia consells específics per a l'usuari disponibles de reviews or Q&A at this time. However, general best practices for GNSS receivers include:

• Always ensure a clear line of sight to the sky for optimal satellite reception.
• Protect connectors from moisture and dust, especially in harsh environments.
• Regularly check for firmware updates to enhance performance and stability.

9. Garantia i assistència

For warranty information, technical support, or service inquiries, please contact your authorized Beitian dealer or visit the official Beitian weblloc web. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.