Multi-frequency, multi-constellation GNSS reference receiver

  • Tracks all visible GNSS signals (GPS, GLONASS, Galileo, BeiDou, NavIC)
  • High precision, low noise measurements
  • Unique Advanced Interference monitoring and mitigation (AIM+) + advanced GNSS+ toolkit
  • Powerful web interface and logging tools
  • Rugged housing and multiple interfaces
  • Up to 8 independent logging sessions
  • Logging both internally and to an external device
  • Internal battery for autonomous >24-hour operation (only available on PolaRx5e)
  • IP68 compliant (only available on PolaRx5e)


PolaRx5 is a versatile and robust multi-frequency GNSS reference receiver. The unique design of its tracking provides measurements with the lowest noise on the market while constantly monitoring and protecting against interference, multipath and other environmental effects. 

The PolaRx5 is developed specifically to support the most demanding applications for the earth science community offering a select range of advanced features which enable maximum accuracy and functionality. Powered by Septentrio’s next generation multi-frequency engine, the PolaRx5 offers 544 hardware channels for robust and high quality GNSS tracking. 

Independent tests have shown the PolaRx5 to consistently rank highest among GNSS receivers in many areas of measurement quality, including fewest number of cycle slips and lowest power consumption well below 2W.

The IP68 compliant variant, the PolaRx5e is also available which comes complete with battery. The GNSS specifications of the PolaRx5 and PolaRx5e are identical. The physical specifications differ slightly and are documented in the PolaRx5 datasheet.

The GNSS+ toolkit - Good positioning even in the most challenging environments

Septentrio’s field-proven Advanced Interference Mitigation (AIM+) technology enables the PolaRx5 to filter out both intentional and unintentional sources of radio interference, from narrowband signals over high powered pulsed signals to chirp jammers and Iridium interferers.

Septentrio’s patented Multipath Mitigation (APME+) technology – unique in eliminating short delay multipath without introduction of bias – guarantees superior measurement quality. If needed, the user has the ability to activate or deactivate APME+ to obtain completely unmodified measurements.

Mechanical vibrations or shocks caused by rough terrain can wreak havoc with satellite tracking. LOCK+ automatically adjusts the parameters of your receiver so you never lose position.

AIM+ anti-jamming and RF spectrum monitoring system

AIM+ offers built-in protection against intentional and unintentional jamming using a sophisticated system of sampling and mitigation mechanisms. Your high-precision GNSS / GPS receiver can automatically suppress the widest variety of interferers from simple continuous narrow-band signals to the more complex wide band and pulsed transmitters as well as lnmarsat and Iridium satellite transmissions. 

Intuitive Web user interface

With your high-precision GPS reference receiver comes 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.

Illustrative image for Septentrio PolaRx5 GNSS Reference Receiver Web User Interface (WebUI)

Septentrio’s patented GNSS+ technologies

AIM+ Advanced Interference Monitoring and Mitigation
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Unique anti-interference system monitors, flags and mitigates narrow and wideband interference, jamming and spoofing.

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Onboard storage
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16GB internal disk, used for data logging

Number of logging sessions
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Up to 40 logging jobs (8 independent sessions x 5 data formats)



10 MHz reference input
10 MHz reference output
x PPS output
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Maximum 100 Hz

COM ports
Ethernet port
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100 Mbps

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Integrated Wi-Fi 802.11b/g/n

Power over Ethernet
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Power over Ethernet (PoE) 802.3af standard, mode A, 37-57VDC

USB client
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Full-speed USB

USB host
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USB host for external storage, up to 128GB.


File transfer features

FTP server

Physical & environmental

IP rating

Product datasheet

Support documentation

PolaRx5 Quick Start Guide
256.64 KB
PolaRx5 User Manual v2.7 (English)
7.61 MB
3D drawing
2.78 MB

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