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2 AsteRx-U overview
The AsteRx-U provides multi-frequency, multi-constellation GNSS positioning capability together with GNSS Heading, L-Band positioning and wireless communications within a rugged IP67 housing for the broadest range of applications. Use any smartphone, tablet or computer to operate the AsteRx-U without any special configuration software via the built-in webserver accessible via WiFi, Ethernet or USB connection.
2.1 AsteRx-U key features
• 544 channels for tracking all known and future signals from GPS, GLONASS, GALILEO,
BEIDOU, IRNSS, QZSS and SBAS on both antennas
• Precise and robust heading calculation
• cm-level (RTK) and sub dm-level (PPP) position accuracy
• Dual L-Band channel robust against INMARSAT uplink interference
• Septentrio GNSS + algorithms for robust industrial performance
• Integrated cellular modem, Bluetooth, WiFi and optional UHF radio
2.1.1 GNSS
• 544 hardware channels for simultaneous tracking of all visible satellite signals
• Supported signals: GPS (L1, L2, L5), GLONASS (L1, L2, L3), GALILEO (E5ab, AltBoc,
E6), BEIDOU (B1, B2, B3), IRNSS (L5), QZSS (L1, L2, L5) (Galileo, Beidou and IRNSS are optional features)
• All-in-view SBAS (EGNOS, WAAS, GAGAN, MSAS, SDCM) (incl. L5 tracking)
• 100 Hz Raw data output (code, carrier, navigation data) (optional feature)
• 50 Hz SBAS, DGNSS, PPP and RTK positioning
• A Posteriori Multipath Estimator Technique (APME + ), including code and phase multipath mitigation
• AIM+ interference unit mitigates against wide and narrow-band interference
• IONO+ Advanced scintillation mitigation
• RAIM
• Differential GNSS (base station and rover)
• Real Time Kinematic (base and rover) (base is an optional feature)
• TerraStar and VERIPOS services (optional feature, activation required)
• Moving base positioning (optional feature)
• 8 GB Internal Memory
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2.1. ASTERX-U KEY FEATURES
GNSS positioning accuracy
Standalone
SBAS
DGPS
TerraStar-D
TerraStar-C
APEX
ULTRA
Horizontal
1.2 m
0.6 m
0.3 m
6 cm
4 cm
6 cm
6 cm
RTK performance
Horizontal accuracy
Vertical accuracy
Average time to fix
0.6 cm +
1 cm
0.5 ppm
+ 1 ppm
7 s
Vertical
1.9 m
0.8 m
0.7 m
9 cm
6 cm
9 cm
9 cm
Velocity accuracy
0.03 m / s
Attitude accuracy
antenna separation
1 m
10 m
Heading
0.15
◦
0.03
◦
Pitch \ Roll
0.25
◦
0.05
◦
Connectivity
• 3 hi-speed serial ports (RS232)
• Ethernet port (TCP/IP and UDP)
• Full speed USB (host and device)
• 2 Event markers
• xPPS output (max. 100 Hz)
• Integrated Bluetooth (2.1 + EDR/4.0)
• Integrated Quadband Cellular Modem (EDGE, 2G, 3G, 3.5G)
• Integrated WiFi (802.11 b/g/n)
• Integrated UHF (406-470 MHz) (AsteRx-U UHF and MARINE variants only)
• Connector for separate L-Band antenna (AsteRx-U MARINE variant only)
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