1. Home
  2. Products
  3. GPS / GNSS Receivers
  4. GNSS Ruggedized Boxes
  5. AsteRx-U3 Marine

AsteRx-U3 Marine

Multi-constellation, dual-antenna GNSS receiver for marine applications

  • Full-constellation, triple-frequency satellite tracking on both antennas
  • Sub-degree GNSS heading & pitch or heading & roll
  • Centimeter-level (RTK) performance and sub decimeter-level (PPP) position accuracy  
  • L-band reception, robust against Iridium and Inmarsat uplink interference 
  • Support for FUGRO Marinestar corrections 
  • AIM+ unique interference mitigation system as part of the advanced GNSS+ algorithm suite
  • Integrated UHF radio, cellular modem, Bluetooth and Wi-Fi

The AsteRx-U3 MARINE is designed for marine survey and construction users. It is a multi-frequency GNSS receiver offering precise GNSS positioning and heading with enhanced Iridium and Inmarsat uplink interference mitigation. 

Consistently accurate now and into the future

The AsteRx-U3 is the most advanced integrated multi-constellation dual-antenna receiver from Septentrio. Its multi-frequency engine can track signals from all Global Navigation Satellite System (GNSS) constellations: GPS, GLONASS, Galileo, BeiDou, NavIC and QZSS – on both antennas. This guarantees you reliable and accurate GNSS positioning now and into the future.

Reliable centimeter accuracy

Septentrio’s 20 years of experience in the GNSS industry ensures that the AsteRx-U3 offers the highest possible accuracy, down to the centimeter level. LOCK+ technology maintains tracking during heavy vibrations and IONO+ ensures position accuracy even during periods of elevated ionospheric activity. The AsteRx-U3 offers the very latest in advanced interference mitigation technology  AIM+, which filters out ambient intentional and unintentional RF interference.

Any device, any platform

Use any device with a web browser to operate the AsteRx-U3 without any special configuration software via the Web interface, accessible over Ethernet, Wi-Fi or USB connections.

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 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.

Septentrio-AsteRx-U-GNSS-Receiver-WebUI-LR

 

 

     

Septentrio’s patented GNSS+ technologies

AIM+ Advanced Interference Monitoring and Mitigation
More info

AIM+

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

More info
RTK (base and rover)
More info

Optional feature

Interfaces

Hi-speed serial ports (RS232)
 3
Ethernet port (TCP/IP, UDP, LAN 10/100 Mbps)
More info
1
High-speed/full-speed USB device port
 1
Event markers
 2
xPPS output (max. 100 Hz)
 1
Integrated bluetooth (2.1 + EDR/4.0)
 1
EU 4G LTE model
More info

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)
Integrated WiFi (802.11 b/g/n)
Integrated UHF (406-470 MHz)
More info

Optional feature

Integrated position accuracy

Standalone - horizontal
More info

Open-sky conditions. RMS levels.

 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
Show more specifications

Product datasheet

AsteRx-U3 Marine datasheet Download
Fugro Marinestar Correction Service Leaflet Download

Support documentation

AsteRx-U3 MARINE User Manual v1.1
11.08 MB
Download
Customer notification2023-01-09 Marinestar L-band stream changes
468.58 KB
Download
Download RxTools extensive support tool suite for receivers Download
Product certificates Download

Log in below and download our product resources

By filling in this form, you agree to the processing of your personal data by Septentrio in accordance with our privacy policy for the purpose of providing you with the requested information and keeping you informed via e-mail of relevant webinars, invitations to events and exhibitions, the latest product technology and insight articles about the GPS/GNSS industry and technology. If you change your mind, you can unsubscribe at any time.
Go to Support Central Subscribe to Firmware Updates

Related knowledge base articles

getting started

Getting started

Read more
spectrum

Visualizing interference using the spectrum plot

Read more
apc

ARP/APC offsets

Read more

Applications

Insights

world map

GNSS Corrections Demystified
GNSS Corrections play a vital role in high-accuracy positioning. This insight explores the concept of GNSS corrections and the three top correction methods: RTK, RTK-PPP and PPP. It highlights their strengths and weaknesses and offers insight to help decide which correction method might work best for your technology.
Read more
Product datasheet Ask a quote Contact us