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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SBAS: EGNOS, WAAS, GAGAN, MSAS, SDCM
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NavIC: L5
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QZSS: L1, L2, L5
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Septentrio’s patented GNSS+ technologies
Interfaces
Hi-speed serial ports (RS232)
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3 |
1 | |
Event markers
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2 |
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
1.2 m | |
Standalone - vertical
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1.9 m |
SBAS - horizontal
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0.6 m |
SBAS - vertical
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0.8 m |
DGNSS - horizontal
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0.4 m |
DGNSS - vertical
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0.7 m |
Product datasheet
AsteRx-U3 datasheet
Download
Support documentation
Important note – Firmware upgrade:
An issue with FW version 4.14.1 was found that can (although unlikely) affect Ethernet connectivity in specific cases. The distribution of this FW version was therefore stopped. We advise customers to upgrade their receivers to v4.14.2