AsteRx SB3 ProBase

Reliable and robust base station GNSS receiver

  • Robust top-quality measurements for RTK and differential corrections
  • Multi-constellation for best availability
  • Multi-frequency for reliability
  • AIM+  advanced anti-jamming technology as part of the GNSS+ Algorithm Suite  
  • Open interface for full compatibility with all standard data formats
  • Tough and compact IP68 weatherproof housing, ready for deployment

The AsteRx SB3 ProBase is a multi-frequency and multi-constellation housed GNSS receiver designed to operate as a reference station for local RTK or network densification. On top of providing top-quality measurements this receiver offers full configuration flexibility as well as easy monitoring capabilities. It incorporates the latest anti-jamming technology for unbeatable robustness and reliability.

AIM+ anti-jamming and RF spectrum monitoring system

The AsteRx SB3 ProBasefeaturesAIM+ Advanced Interference Mitigation and monitoring technology, offers built-in protection against intentional and unintentional jamming and spoofing using a sophisticated system of sampling and mitigation mechanisms. In robotic devices neighboring electronics can produce RF radiation which interferes with GNSS signals. AIM+ offers protection against such interference resulting in faster set-up time and robust continuous operation. 

Top performance in challenging environments with GNSS+ algorithms 

  • Activity in the ionosphere is a problem for GNSS signals, from loss of RTK fix to total loss of signal lock. Having honed our skills, supporting applications in the most iono-active areas on Earth, the result is IONO+ the most advanced protection against ionospheric disturbances to GNSS signals on any receiver.
  • Metal and large nearby structures can reflect GNSS signals and produce multipath. The APME+ system effectively disentangles direct and reflected signals enhancing both position and measurement quality.

    Easy-to-Integrate with an intuitive web app 

    AsteRx SB3 ProBase offers full control to enable or to disable data processing functionality such as smoothing or multipath mitigation. Its quality indicators can be viewed remotely for efficient station health monitoring. It comes with fully documented interfaces, commands and data messages. The included GNSS receiver control and analysis software RxTools allows receiver configuration, monitoring as well as data logging and analysis.

    Illustrative image for Septentrio AsteRx SB3 Pro+ GNSS Receiver Web User Interface (WebUI)

    This receiver includes an intuitive web user interface for easy operation and monitoring allowing you 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 the job at hand.

    GNSS technology

    GPS: L1 C/A, L1C, L2C, L2 P(Y), L5
    More info


    GLONASS: L1 C/A, L2C/A, L2P, L3
    More info


    Beidou: B1I, B1C, B2a, B2I, B2b, B3I
    Galileo: E1, E5a, E5b, E5 AltBoc, E6
    QZSS: L1 C/A, L1C/B, L2C, L5
    NavIC: L5
    5 constellation RTK (base and rover)

    Septentrio patented GNSS+ technologies

    AIM+ anti-jamming, anti-spoofing Advanced Interference Monitoring and Mitigation
    More info


    Unique anti-interference system monitors, flags and mitigates narrow and wideband interference, jamming and spoofing.

    More info


    Ethernet port (TCP/IP, UDP, LAN 10/100 Mbps)
    More info
    xPPS output (max 100 Hz)
    Outputs to drive external LEDs
    Event markers
    General purpose output
    NTRIP (client)
    Initialisation time
    7 s

    Other positioning modes accuracy

    Horizontal DGNSS
    0.4 m
    Vertical DGNSS
    0.7 m

    Time precision

    xPPS out
    More info

    Incl. software compensation of sawtooth effect


    Product datasheet

    Support documentation

    AsteRx SB3 User Manual v1.3
    5.94 MB

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