Precis-BX305 GNSS RTK Board (mini) (GPS L1L2/GLONASS G1/Beidou B1B3)

Precis-BX305 (mini version) is a GNSS RTK board that supports three constellations, five frequencies. It is a compact GNSS positioning solution offering real-time, cost-efficient centimeter-level positioning as well as flexible interfaces for a number of applications, such as navigation, precision agriculture, surveying, and UAV (unmanned aerial vehicle), as well as deformation monitoring.


  • Supports GPS L1/L2, GLONASS G1, Beidou B1/B3
  • Supports 192 GNSS channels
  • Centimeter level positioning accuracy
  • Rapid RTK integer ambiguity resolution
  • Up to 20Hz position/velocity/time solutions
  • Serial ports with LVTTL
  • Easy to integrate with Pixhawk and other autopilots
  • External antenna input through SMA connector
  • Data output: NMEA-0183
  • Correction: RTCM 2.x/3.x and CMR
  • Onboard 9-axis inertial/magnetic sensors
  • High performance miniaturized microstrip GNSS antenna
  • Supports logging of raw observation data

Key Spec Comparison

Details of Precis RTK Systems key specification comparison, click here.

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