AsteRx-U
Ruggedized dual antenna GNSS receiver
- 544 channels for tracking all known and future signals from GPS, GLONASS, GALILEO, BEIDOU, NavIC, QZSS & SBAS on both antennas
- Precise and solid heading calculation
- centimetre-level (RTK) and dm-level (PPP) position accuracy
- Compatible with RTK and SBAS corrections
- Septentrio GNSS+ algorithms for solid performance even in regions of evaluated ionospheric activity
- Integrated cellular modem, Bluetooth and WiFi; optional UHF radio
Note: product with limited availability.
Orders accepted until, and not later than February 29, 2024 (last time buy date, subject to availability) for configurations including North America 4G cell modem.
Orders accepted until, and not later than July 31, 2023 (last time buy date, subject to availability) for all other configurations.

Illustrative image for Septentrio AsteRx-U3 GNSS Receiver Web User Interface (WebUI)
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)
|
1 |
High-speed/full-speed USB device port
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1 |
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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NA 4G LTE model
4G compatibility in North America and other regions: 4G LTE CAT4 (B2, B4, B5, B7, B17), 3G UMTS/HSDPA/HSUPA (850/900/AWS1700/1900/2100), 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
|
1.9 m |
SBAS - horizontal
|
0.6 m |
SBAS - vertical
|
0.8 m |
DGNSS - horizontal
|
0.4 m |
DGNSS - vertical
|
0.7 m |
Velocity
3 cm/s |
Product datasheet
AsteRx-U datasheet
Download
Support documentation
Important notes - Firmware upgrade:
- Only AsteRx-U products with an internal random-access memory (RAM) larger than 64 MB are eligible for an upgrade to version 4.10.4. This means that AsteRx-U UHF with a serial number lower than 360231 and AsteRx-U, AsteRx-U MARINE with a serial number lower than 3402295 cannot run this version and needs to remain at firmware version 4.5.0.1
- This firmware version does not support Septentrio SECORX positioning based on TerraStar service. Receivers actively using the SECORX service need to remain at firmware version 4.5.3