• Beitian BG-518 ZED-F9P GNSS RTK board close-up with RF antenna connector and pin headers
  • Beitian BG-518 ZED-F9P GNSS RTK positioning module PCB and back plate, top and rear views
  • Beitian BG-518 CAN RTK module graphic highlighting ZED-F9P, BMP388 barometer, and BMM150 compass
  • BG-518 product features card with module photo and listed specs like size, voltage, and baud rate
  • Application scenario graphic for RTK GNSS module: surveying, precision agriculture, driverless, machinery
  • Package contents list: BG-518 receiver board, USB Type‑C cable, and serial cables with/without lock
  • Product parameter table showing size 58×38×6.5 mm, weight 15.5 g, connectors, BMM150, BMP388
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Beitian BG-518 ZED-F9P GNSS RTK Positioning Module w/ BMM150 Compass & BMP388 Barometer

Beitian BG-518 ZED-F9P GNSS RTK Positioning Module w/ BMM150 Compass & BMP388 Barometer

Beitian

$351.66 USD
$351.66 USD
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Overview

The Beitian BG-518 is a multi-GNSS RTK positioning module built around a “B9 RTK GNSS Module” chipset and integrates a BMM150 geomagnetic compass and BMP388 barometer for robotics navigation, robot surveying, and smart vehicle positioning applications. It supports GPS/GLONASS/BDS/GALILEO/QZSS reception, RTK output (RTCM supported), CAN communication, and configurable 1PPS timing output.

Key Features

  • Multi-constellation, dual-band reception: GPS L1/L2, GLONASS G1/G2, BDS B1/B2, GALILEO E1/E5b, QZSS L1/L2
  • 184 searching channels
  • RTK accuracy (CEP): 0.01 m + 1 ppm (horizontal and vertical)
  • Protocols: NMEA-0183, UBX, RTCM; NMEA messages: RMC, VTG, GGA, GSA, GSV, GLL
  • Update rate: 0.25 Hz to 20 Hz (default 1 Hz)
  • Interfaces listed: CAN2.0 A/B (max 1 Mbit/s) and USB2.0 full-speed
  • Integrated peripherals listed: BMM150 compass, BMP388 barometer; switch and buzzer supported
  • 4M FLASH for permanent configuration storage

Specifications

Category Item Specification
Electrical Characteristics Chipset B9 RTK GNSS Module
Electrical Characteristics Frequency GPS L1/L2, GLONASS G1/G2, BDS B1/B2, GALILEO E1/E5b, QZSS L1/L2
Electrical Characteristics Receiving Format GPS, GLONASS, BDS, GALILEO, QZSS (Default GPS, GLONASS, BDS, GALILEO, QZSS)
Electrical Characteristics Channels 184 Searching Channel
Sensitivity Tracking -167 dBm
Sensitivity Reacquisition -160 dBm
Sensitivity Cold Start -148 dBm
Sensitivity Hot Start -157 dBm
Accuracy RTK horizontal accuracy RTK 0.01 m + 1 ppm CEP
Accuracy RTK vertical accuracy RTK 0.01 m + 1 ppm CEP
Accuracy Horizontal accuracy 1.5 m CEP
Accuracy Vertical accuracy 1.5 m CEP
Accuracy Velocity 0.05 m/s
Accuracy Heading accuracy 0.4 deg (When the antenna baseline length is 1 meter)
Accuracy Dynamic heading accuracy 0.3 deg
Accuracy 1PPS Timing RMS 30 ns; 99% 60 ns
Acquisition Time Cold Start 24 s
Acquisition Time Warm Start 2 s
Acquisition Time Hot Start 2 s
Convergence time Convergence time ≤10 s
Data Output Support Rate 4800 bps to 921600 bps (Default 38400 bps)
Data Output Data Level TTL Level or RS-232 Level (Default TTL Level)
Data Output Data Protocol NMEA-0183, UBX, RTCM
Data Output NMEA Message RMC, VTG, GGA, GSA, GSV, GLL
Data Output Update Rate 0.25 Hz to 20 Hz (Default 1 Hz)
Data Output FLASH 4M FLASH, store the configuration permanently
Data Output 1PPS 0.25 Hz to 10 MHz configurable, default cycle is 1 s, high level lasts 100 ns
Data Output RAWX Support Multi-GNSS Raw Measurement data output
Operational Limits Altitude ≤50,000 m
Operational Limits Velocity ≤500 m/s
Operational Limits Acceleration ≤4 g
MCU MCU ARM Cortex-M4, STM32F412RET6, FLASH 512KB, SRAM 256KB, 100MHz, LQFP-64 (10x10)
Connectors Connector 1.25 pitch 4PIN socket*2; 1.25 pitch 6PIN socket*2
Peripherals Compass BMM150
Peripherals Barometer BMP388
Peripherals 6-axis attitude sensor NO
Peripherals Switch support
Peripherals Buzzer support
Peripherals SD Card NO
Peripherals USB NO
Interface Interface CAN2.0 A/B, Max 1 Mbit/s; USB2.0, full-speed
LED RTK The blue light is always on when the power is on; the blue light flashes after positioning; the green light flashes when entering the RTK
LED SAFE User LED x 1 MCU software decision
LED RGB User LED x 1 MCU software decision
LED CAN The CAN communication light is solid green
Power Consumption VCC DC Voltage 3.6V-6.0V, Typical: 5.0V
Power Consumption Current Capture 80mA/5.0V
Mechanical Specifications Dimension 58*38*6.5mm
Mechanical Specifications Weight 15.5g
Environment Operating Temp -40 °C ~ +85 °C
Environment Storage Temp -40 °C ~ +105 °C

Pin Description

COM1

PIN Name I/O Description Characteristic
1 5V I MCU programming power supply Default 5.0V
2 RX I UART communication interface, TTL level GPS data entry pin
3 TX O UART communication interface, TTL level GPS data output pins
4 SCL I Serial Clock - I2C bus master/slave clock QMC5883L compass clock pins
5 SDA O Serial Data - I2C bus master/slave data QMC5883L compass data pins
6 GND G Ground Ground

MCU CAN

PIN Name I/O Description Characteristic
1 5V I MCU programming power supply Default 5.0V
2 CANH I CANH communication interface MCU CAN communication interface
3 CANL I CANL communication interface MCU CAN communication interface
4 GND G Ground Ground

COM2

PIN Name I/O Description Characteristic
1 5V I MCU programming power supply Default 5.0V
2 RX I UART communication interface, TTL level GPS data entry pin
3 TX O UART communication interface, TTL level GPS data output pins
4 1PPS O 1PPS, low level before positioning, second pulse output with a period of 1 s and a high level of 100 ms after positioning Pulses can be used for synchronization or timing, without hovering
5 EVENT I Event triggering
6 GND G Ground Ground

MCU USB

PIN Name I/O Description Characteristic
1 GND G Ground Ground
2 DP USB_DP
3 DM USB_DM
4 5V I MCU programming power supply Default 5.0V

MCU (Debug/Power)

PIN Name I/O Description Characteristic
1 C SWCLK MCU debug interface
2 D SWDIO
3 GND G Ground Ground
4 VCC I Mains power, DC input Default 5.0V: If you need 12V input, you need to customize the hardware,

Mechanical Drawing Notes (Extracted)

  • Overall size reference: 58*38*6.5 mm (also listed in specifications)
  • Drawing callouts include: 38 ± 0.2, 32.6 ± 0.1, 58 ± 0.2, 52.6 ± 0.2
  • Mounting holes callout: 4-Ø2.3

Applications

  • Robot surveying and mapping (RTK positioning with RTCM support)
  • Smart vehicles and mobile robotics navigation (CAN communication support)
  • Timing and synchronization setups using 1PPS output

For installation or integration questions (UART/CAN wiring, protocols, or configuration), contact support@rcdrone.top or visit https://rcdrone.top/.

Model Option

  • Model: BG-518

Details

Beitian BG-518 ZED-F9P RTK GNSS module specifications table (multi-GNSS, RTK accuracy, 1PPS, interfaces)

Key electrical, accuracy, output, and interface specifications for the BG-518 RTK GNSS positioning module in one quick reference table.

BG-518 ZED-F9P GNSS RTK module board with labeled connectors and pin description table (UART, I2C, CAN, USB)

Pinout details for integrating UART, I2C, CAN2.0, USB, and 1PPS timing into robotics and navigation controllers.

Beitian BG-518 rear view with mechanical dimension drawing and mounting hole layout

Mechanical dimensions and mounting-hole layout for enclosure design and installation planning.

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