AsteRx-U3
Multi-constellation, dual-antenna GNSS receiver
- Full-constellation, triple-frequency satellite tracking on both antennas
- Sub-degree GNSS heading & pitch or heading & roll
- Best-in-class centimeter-level RTK performance
- AIM+ unique interference mitigation system as part of the advanced GNSS+ algorithm suite
- Integrated UHF radio, cellular modem, Bluetooth and Wi-Fi (depending on configuration)

Illustrative image for Septentrio AsteRx-U3 GNSS Receiver Web User Interface (WebUI)
GNSS technology
Galileo: E1, E5a, E5b, E5 AltBoc
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NavIC: L5
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Septentrio’s patented GNSS+ technologies
Interfaces
Hi-speed serial ports (RS232)
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3 |
Ethernet port (TCP/IP, UDP, LAN 10/100 Mbps)
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1 |
xPPS output (max. 100 Hz)
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1 |
Integrated bluetooth (2.1 + EDR/4.0)
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1 |
EU 4G LTE model
4G compatibility in Europe and other regions: 4G LTE CAT4 (B1, B3, B5, B7, B8, B20), 3G UMTS/HSDPA/HSUPA (850/900/1900/2100), 2G GSM/GPRS/EDGE (850/900/1800/1900) |
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Integrated WiFi (802.11 b/g/n)
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Integrated position accuracy
Maximum update rate
Position
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50 Hz |
Measurements only
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100 Hz |
Latency
<20 |
Certification
Certificates
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IP 67, RohS, WEEE, ISO 9001-2015 |
Related knowledge base articles
Applications
Insights

Integrity: Can you really trust your GPS position?
So you’re getting a consistent position from your receiver, but how do you know that this position is correct? Find out what is meant by integrity of GNSS receiver positioning and why it is important.

Cost-effective machine guidance with robust GPS positioning
Machine control guidance systems depend on accurate positioning, but only those built-in GNSS receivers that have advanced technology can operate in challenging environments such as near high rock faces, under foliage or close to large structures.

What is spoofing and how to ensure GPS security?
This insight article on GPS / GNSS spoofing explains what spoofing is and how to make your GPS / GNSS receiver secure against spoofing.
High Precision GPS to Help Automated Bulk Volume Estimation ? Here’s why...
High precision GPS (GNSS) and lidar helps automated bulk volume estimation in Australian feedlot. Find out how.

Solar wind blows GNSS off course
Insight article on the impact of the ionosphere, ionospheric scintillation on GPS / GNSS satellite signals and what is does to GPS / GNSS positioning. This article also explains when and where this happens most commonly.

6 Musts for a machine control GPS receiver
Looking for a GPS receiver for moving earth, mining or construction? A few things to bear in mind.