AsteRx-m3 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 and anti-spoofing system 

  • Open interface for full compatibility with all standard data formats 

The AsteRx-m3 ProBase is a multi-frequency and multi-constellation 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 

AsteRx-m3 ProBase features  AIM+ 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+

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-m3 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-m3 ProBase GNSS Receiver Web User Interface (WebUI)


Septentrio patented GNSS+ technologies

AIM+ Advanced Interference Monitoring and Mitigation
More info


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

More info


UART (LVTTL, up to 4 Mbps)
Ethernet (TCP/IP, UDP, LAN 10/100 Mbps)
USB device port (micro USB with access to
internal disk, TCP/IP communication and with 2 extra serial ports)
SDIO interface for logging (covers SD, SD, eMMC)
Outputs to drive external LEDs
Event markers
More info

Depending on configuration.

FTP server, FTP push, SFTP


L1C/A, L2C

Product datasheets

Support documentation

AsteRx-m3 ProBase Firmware v4.12.1 Release Notes
79.22 KB
AsteRx-m3 ProBase Firmware Package v4.12.1
44.88 MB
AsteRx-m3 ProBase Firmware v4.12.1 Reference Guide
2.08 MB
AsteRx-m3 upgrade from AsteRx-m2(a)
1.05 MB
AsteRx-m3 transition from AsteRx4
267.73 KB
AsteRx-m3 Product Group Hardware Manual v2.3.0
2.14 MB

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