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DFRobot GNSS-RTK High Precision Positioning Kits

DFRobot GNSS-RTK High Precision Positioning Kits achieve centimeter-level accuracy at the EU 868MHz and US 915MHz operating frequencies. These kits operate on the principle of Real-Time Kinematics (RTK), which involves a stationary base station to transmit real-time correction data to a mobile rover. The GNSS-RTK positioning kits support GPS, GLONASS, Galileo, BDS, and QZSS constellations. These kits incorporate Quectel's LC29HDA rover module and LC29HBS base station module, combined with LoRa wireless transmission for high-precision centimeter-level positioning. Typical applications include academic and research projects, autonomous systems prototyping, geospatial and surveying tasks, and high-value asset tracking.

Features

  • LoRa data transmission - utilizes LoRa wireless technology for stable, long-range, and low-power communication of RTCM correction data between the base station and rover(s)
  • Centimeter-level accuracy in open areas - achieves high-precision centimeter-level positioning under optimal open-sky conditions
  • User-friendly - designed for ease of use with a pre-configured data link, enabling rapid setup and operation right out of the box
  • Low cost of use - provides an accessible entry point into high-precision positioning technology, minimizing initial investment and complexity
  • Single base station supports multiple mobile - one base station can broadcast correction data to several Mobile units simultaneously, improving efficiency and scalability
     
     

Applications

  • Academic and research projects - providing an affordable platform for learning and experimenting with high-precision positioning
  • Autonomous systems prototyping - enabling precise navigation and path-tracking for UAVs, rovers, and agricultural robots
  • Geospatial and surveying tasks - facilitating accurate mapping, boundary marking, and data collection for small-scale surveying
  • High-value asset tracking - monitoring the exact location of equipment or personnel in open environments like construction sites or farms

Specifications

  • Base station:
    • Power supply:
      • Type-C
      • 5V to 10V (terminal)
    • SMA GNSS antenna interface
    • Base station function
    • Sensitivity:
      • -147dBm acquisition
      • -165dBm tracking
      • -159dBm reacquisition
  • Mobile:
    • 3.3V to 5V operating voltage range
    • I2C/UART output signal
    • SMA antenna interface
    •  WAAS, EGNOS, MSAS, and GAGAN SBAS
    • RTK function
    • Horizontal positioning accuracy:
      • 1m autonomous
      • 5cm + 1ppm RTK
    • 0.03m/s velocity accuracy
    • 20ns 1PPS accuracy
    • <10s RTK convergence time
    • Sensitivity:
      • -147dBm acquisition
      • -165dBm tracking
      • -157dBm reacquisition
    • 1Hz RTK navigation update rate
  • LoRa parameters:
    • LLCC68 RF chip Semtech
    • 433MHz operating frequency
    • LoRa spread spectrum modulation
    • 22dBm maximum TX power
    • -129dBm RX sensitivity
  • Reception bands:
    • L1 C/A and L5 GPS/QZSS
    • L1 GLONASS
    • E1 and E5a Galileo
    • B1I and B2a BDS
  • GPS + GLONASS + Galileo + BDS + QZSS default constellations
  • 4+ QGNSS concurrent constellations
  • Dynamic performance:
    • 10000m maximum altitude
    • 500m/s maximum velocity
    • 4g maximum acceleration
  • Hz raw data update rate
  • NMEA 0183/RTCM 3.x protocol
  • 92mm x 58mm x 31mm dimensions

Data Transmission Diagram

DFRobot GNSS-RTK High Precision Positioning Kits

Kit Overview

DFRobot GNSS-RTK High Precision Positioning Kits
Veröffentlichungsdatum: 2026-01-28 | Aktualisiert: 2026-02-03