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Marine Survey & Construction GNSS Receiver
The AsteRx-U3 Marine delivers precise GNSS positioning and heading with advanced Iridium/Inmarsat interference mitigation.
Key Strengths
Centimeter-Level Accuracy: GNSS+ technologies LOCK+, IONO+, AIM+ maintain performance under high vibration and ionospheric disturbances.
Dual-Antenna Heading: Provides reliable heading for static and dynamic marine operations.
Flexible Operation: Web-based interface accessible via Ethernet, Wi-Fi, or USB without special software.
Applications
- Marine
- Offshore Operations
KEY FEATURES
- Full-constellation, triple-frequency satellite tracking on both antennas
- Sub-degree GNSS heading & pitch or heading & roll
- Centimetre-level (RTK) and sub decimetre-level (PPP) position accuracy
- L-band reception, robust against Iridium and Inmarsat uplink interference
- Support for FUGRO Marinestar corrections
- Septentrio GNSS+ algorithms for reliable performance
- Integrated UHF radio, cellular modem, Bluetooth and Wi-Fi
- RTK (base and rover)
- Integrated L-band receiver with dedicated antenna input
- Moving base
- GNSS heading & pitch or heading & roll
- 16 GB internal memory
- Support for FUGRO Marinestar PPP service
544 Hardware channels for simultaneous tracking of most visible signals
- GPS: L1 C/A, L1C1, L2C, L2 P(Y), L5
- GLONASS: L1 C/A, L2 C/A, L3, L2P
- BeiDou: B1I, B1C, B2a, B2I, B3I
- Galileo: E1, E5a, E5b, E5 AltBOC, E6
- QZSS: L1 C/A, L1C1, L2C, L5
- NavIC: L5
- SBAS: EGNOS, WAAS, GAGAN, MSAS, SDCM
Septentrio’s patented GNSS+ technologies
- AIM+ unique mitigation and monitoring system against narrow and wideband interference with spectrum analyser
- APME+ a posteriori multipath estimator for code and phase multipath mitigation
- LOCK+ superior tracking robustness under heavy mechanical shocks or vibrations
- IONO+ advanced scintillation mitigation
- RAIM+ (Receiver Autonomous Integrity Monitoring)
| RTK Performance | ||||
|---|---|---|---|---|
| Hor Accuracy | Ver Accuracy | Initialisation | ||
| 0.6 cm + 0.5 ppm | 1 cm + 1 ppm | 7 s | ||
| GNSS Attitude Accuracy | ||||
| Antenna Separation | Heading | Pitch/Rol | ||
| 1m | 0.15° | 0.25° | ||
| 5m | 0.03° | 0.05° | ||
| Position Accuracy | ||||
| Horizontal | Vertical | |||
| Standalone | 1.2 m | 1.9 m | ||
| SBAS | 0.6 m | 0.8 m | ||
| DGNSS | 0.4 m | 0.7 m | ||
| Maximum Update Rate | ||||
| Position | Position and attitude | Measurements | ||
| 100 Hz | 50 Hz | 100 Hz | ||
| Time Precision | ||||
| xPPS Out | Event Accuracy | |||
| 5 ns | < 20 ns | |||
| Time-to-first-fix (TTFF) | ||||
| Cold Start | Warm Start | Re-acquisition | ||
| < 45 s | < 20 s | avg. 1 s | ||
| Tracking Performance (C/N0 Threshold) | ||||
| Tracking | Acquisition | |||
| 20 dB-Hz | 33 dB-Hz | |||
| Other Metrics | ||||
| Velocity Accuracy | Latency | |||
| 0.03 m/s | < 20 ms | |||
Formats
- Septentrio Binary Format (SBF), fully documented with sample parsing tools
- RTCM v2.x, v3.x (MSM messages included)
- CMR 2.0 and CMR+ (CMR+ input only)
- NMEA 0183, v3.01, v4.0
- UHF: Satel, Trimtalk (450S) Pacific Crest (GMSK, 4FSK, FST)
Connectivity
- 3 Hi-speed serial ports (RS232)
- Ethernet port (TCP/IP and UDP)
- High-speed USB
- CAN port
- 1 Event marker
- xPPS output (max. 100 Hz)
- Bluetooth (2.1 + EDR/4.0)
- WiFi (802.11 b/g/n)
- UHF (410-475 MHz)
- Cellular modem: LTE CAT4
- 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)
SUPPORTING COMPONENTS
- Embedded Web UI with full control and monitoring functionality.
- RxTools, a complete and intuitive GUI tool set for receiver control, monitoring, data analysis and conversion.
- GNSS receiver communication SDK. Available for both Windows and Linux
| SWaP | ||||
|---|---|---|---|---|
| Size | Weight | Input voltage | Power consumption | |
| 157 x 245 x 45 mm | 1.5 kg | 9-36 VDC | 8 W typical | |
| Connectors | ||||
| Antennas | TNC female | |||
| Power | LEMO 4 pins female | |||
| USB/ETH | LEMO 16 pins female | |||
| PPS OUT | LEMO 5 pins female | |||
| Serial 2 | LEMO 9 pins female | |||
| Serial 1 & 3 | LEMO 14 pins | |||
| Events/GPIO | LEMO 7 pins female | |||
| Antenna LNA power output on TNC | ||||
| Output voltage | Maximum current | |||
| User selectable 3.3V/5V | 150 mA | |||
| Environmental | ||||
| Operating temperature | Storage temperature | Humidity | ||
| -30°C to +65°C | -40°C to +75°C | IEC60721-3-5, Class 5K2 | ||
| Dust | Shock | Vibration | Corrosion | |
| MIL-STD-810H, Method 510.7, Procedure I | MIL-STD-810H, Method 516.8, Procedure I/II | MIL-STD-810H, Method 514.8, Procedure I | IEC60068-2-52, Method 2 | |
Marine Survey & Construction GNSS Receiver
The AsteRx-U3 Marine delivers precise GNSS positioning and heading with advanced Iridium/Inmarsat interference mitigation.
Key Strengths
Centimeter-Level Accuracy: GNSS+ technologies LOCK+, IONO+, AIM+ maintain performance under high vibration and ionospheric disturbances.
Dual-Antenna Heading: Provides reliable heading for static and dynamic marine operations.
Flexible Operation: Web-based interface accessible via Ethernet, Wi-Fi, or USB without special software.
Applications
- Marine
- Offshore Operations
KEY FEATURES
- Full-constellation, triple-frequency satellite tracking on both antennas
- Sub-degree GNSS heading & pitch or heading & roll
- Centimetre-level (RTK) and sub decimetre-level (PPP) position accuracy
- L-band reception, robust against Iridium and Inmarsat uplink interference
- Support for FUGRO Marinestar corrections
- Septentrio GNSS+ algorithms for reliable performance
- Integrated UHF radio, cellular modem, Bluetooth and Wi-Fi
- RTK (base and rover)
- Integrated L-band receiver with dedicated antenna input
- Moving base
- GNSS heading & pitch or heading & roll
- 16 GB internal memory
- Support for FUGRO Marinestar PPP service
544 Hardware channels for simultaneous tracking of most visible signals
- GPS: L1 C/A, L1C1, L2C, L2 P(Y), L5
- GLONASS: L1 C/A, L2 C/A, L3, L2P
- BeiDou: B1I, B1C, B2a, B2I, B3I
- Galileo: E1, E5a, E5b, E5 AltBOC, E6
- QZSS: L1 C/A, L1C1, L2C, L5
- NavIC: L5
- SBAS: EGNOS, WAAS, GAGAN, MSAS, SDCM
Septentrio’s patented GNSS+ technologies
- AIM+ unique mitigation and monitoring system against narrow and wideband interference with spectrum analyser
- APME+ a posteriori multipath estimator for code and phase multipath mitigation
- LOCK+ superior tracking robustness under heavy mechanical shocks or vibrations
- IONO+ advanced scintillation mitigation
- RAIM+ (Receiver Autonomous Integrity Monitoring)
| RTK Performance | ||||
|---|---|---|---|---|
| Hor Accuracy | Ver Accuracy | Initialisation | ||
| 0.6 cm + 0.5 ppm | 1 cm + 1 ppm | 7 s | ||
| GNSS Attitude Accuracy | ||||
| Antenna Separation | Heading | Pitch/Rol | ||
| 1m | 0.15° | 0.25° | ||
| 5m | 0.03° | 0.05° | ||
| Position Accuracy | ||||
| Horizontal | Vertical | |||
| Standalone | 1.2 m | 1.9 m | ||
| SBAS | 0.6 m | 0.8 m | ||
| DGNSS | 0.4 m | 0.7 m | ||
| Maximum Update Rate | ||||
| Position | Position and attitude | Measurements | ||
| 100 Hz | 50 Hz | 100 Hz | ||
| Time Precision | ||||
| xPPS Out | Event Accuracy | |||
| 5 ns | < 20 ns | |||
| Time-to-first-fix (TTFF) | ||||
| Cold Start | Warm Start | Re-acquisition | ||
| < 45 s | < 20 s | avg. 1 s | ||
| Tracking Performance (C/N0 Threshold) | ||||
| Tracking | Acquisition | |||
| 20 dB-Hz | 33 dB-Hz | |||
| Other Metrics | ||||
| Velocity Accuracy | Latency | |||
| 0.03 m/s | < 20 ms | |||
Formats
- Septentrio Binary Format (SBF), fully documented with sample parsing tools
- RTCM v2.x, v3.x (MSM messages included)
- CMR 2.0 and CMR+ (CMR+ input only)
- NMEA 0183, v3.01, v4.0
- UHF: Satel, Trimtalk (450S) Pacific Crest (GMSK, 4FSK, FST)
Connectivity
- 3 Hi-speed serial ports (RS232)
- Ethernet port (TCP/IP and UDP)
- High-speed USB
- CAN port
- 1 Event marker
- xPPS output (max. 100 Hz)
- Bluetooth (2.1 + EDR/4.0)
- WiFi (802.11 b/g/n)
- UHF (410-475 MHz)
- Cellular modem: LTE CAT4
- 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)
SUPPORTING COMPONENTS
- Embedded Web UI with full control and monitoring functionality.
- RxTools, a complete and intuitive GUI tool set for receiver control, monitoring, data analysis and conversion.
- GNSS receiver communication SDK. Available for both Windows and Linux
| SWaP | ||||
|---|---|---|---|---|
| Size | Weight | Input voltage | Power consumption | |
| 157 x 245 x 45 mm | 1.5 kg | 9-36 VDC | 8 W typical | |
| Connectors | ||||
| Antennas | TNC female | |||
| Power | LEMO 4 pins female | |||
| USB/ETH | LEMO 16 pins female | |||
| PPS OUT | LEMO 5 pins female | |||
| Serial 2 | LEMO 9 pins female | |||
| Serial 1 & 3 | LEMO 14 pins | |||
| Events/GPIO | LEMO 7 pins female | |||
| Antenna LNA power output on TNC | ||||
| Output voltage | Maximum current | |||
| User selectable 3.3V/5V | 150 mA | |||
| Environmental | ||||
| Operating temperature | Storage temperature | Humidity | ||
| -30°C to +65°C | -40°C to +75°C | IEC60721-3-5, Class 5K2 | ||
| Dust | Shock | Vibration | Corrosion | |
| MIL-STD-810H, Method 510.7, Procedure I | MIL-STD-810H, Method 516.8, Procedure I/II | MIL-STD-810H, Method 514.8, Procedure I | IEC60068-2-52, Method 2 | |