GNSS Module by Septentrio (8 more products)

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AsteRx-U3 Image

The AsteRx-U3 from Septentrio is a Multi-constellation, Dual-Antenna GNSS Receiver. It can track signals from GPS, GLONASS, Galileo, BeiDou, NavIC, and QZSS GNSS constellations on both antennas with centimeter-level accuracy. The receiver uses LOCK+ technology that maintains tracking during heavy vibrations and IONO+ to ensure position accuracy even during periods of elevated ionospheric activity. This GNSS receiver offers the latest in advanced interference mitigation technology AIM+, which filters out ambient intentional and unintentional RF interference. It combines Septentrio’s latest triple-band precise positioning GNSS core with extended wireless communication features including Wi-Fi, UHF, and 4G LTE. The receiver requires a DC supply from 9 to 48 V and consumes 8 W of power.

The AsteRx-U3 has a cold start time of less than 45 s, a warm start time of under 20 s, and a re-acquisition time of 1 s. It provides an RTK horizontal accuracy of 0.6 cm, a vertical accuracy of 1 cm, and a velocity accuracy of 0.03 m/s. This GNSS receiver includes an intuitive web user interface for easy operation and monitoring to control the receiver from any mobile device or computer. The web interface also uses easy-to-read quality indicators ideal to monitor the receiver operation during operation. It is available in a rugged, IP68-rated housing that measures 157 x 245 x 45 mm.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
  • Description
    Rugged Multi-Constellation, Dual-Antenna GNSS Receiver

General Parameters

  • Type
  • Constellation
    BeiDou, Galileo, GLONASS, GPS, QZSS, SBAS, IRNSS
  • Frequency
    1164 to 1575.42 MHz
  • Band
    B1, B2, E1, E5, E5, E5, L1, L3, L5, L2, B1, B2, B3
  • Configuration
  • SBAS
  • Integrated Antenna
  • Accuracy
    0.03 m/s (Velocity)
  • Cold Start
    45 s
  • TTFF Warm Start
    20 s
  • Update Rate
    50 Hz, 100 Hz
  • Voltage
    3.3 to 5 V
  • Supply Voltage
    9 to 48 V
  • Power Consumption
    8 W
  • Interface
    RS232, Ethernet, USB
  • Connectors
    TNC - Female
  • Industry Application
    Commercial, Military
  • Application
    Automation, Autonomous Vehicles, Construction, Mining, Rail, Logistics


  • Package Type
    Module with Connectors
  • Dimension
    157 x 245 x 45mm
  • Weight
    1.5 kg
  • RoHS


  • Operating Temperature
    -30° C to +65° C
  • Storage Temperature
    -40° C to +75° C

Technical Documents