Septentrio AsteRx-m3 Fg Multi-Frequency Dual-Antenna GNSS Receiver for Marine Applications

Product Details

The AsteRx-m3 Fg is a best-in-class OEM GNSS receiver board from Septentrio, distributed by Xtragen Technologies Pvt. Ltd. It is specifically engineered for marine survey, offshore construction, and high-precision positioning applications. With its multi-frequency, multi-constellation tracking and dual-antenna capability, it delivers unmatched accuracy, reliability, and robustness in the most challenging environments at sea. This compact, lightweight, and ultra-low power receiver can be configured as either a base station or a rover, making it highly versatile for diverse applications. In dual-antenna mode, it provides precise GNSS-based heading with sub-degree accuracy, along with pitch or roll information, eliminating the need for magnetic sensors or reliance on vehicle dynamics. Key Features & Advantages Multi-constellation, triple-frequency tracking: GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS, and integrated L-band receiver. 544 hardware channels for simultaneous tracking of all visible signals. High-accuracy positioning with RTK (0.6 cm + 0.5 ppm horizontal) and Fugro Marinestar PPP corrections. Dual-antenna mode for sub-degree heading, pitch, and roll accuracy (0.03° heading with 5 m antenna separation). Ultra-low power consumption (as low as 750 mW), enabling longer operation on smaller batteries. High update rates & low latency: up to 100 Hz measurements, <10 ms latency. Rugged reliability with Septentrio's patented GNSS+ technologies: AIM+: advanced anti-jamming & anti-spoofing interference mitigation. LOCK+: robust tracking under shocks and vibrations. IONO+: protection against ionospheric disturbances. APME+: multipath error reduction. RAIM+: receiver autonomous integrity monitoring. Easy integration with fully documented interfaces, RxTools software suite, SDK for Windows/Linux, and Web UI for monitoring and configuration. Connectivity options: Ethernet, USB, 4 high-speed serial ports, NTRIP (server/client/caster), FTP/SFTP, event markers, and PPS output. Performance Highlights RTK accuracy: Horizontal 0.6 cm + 0.5 ppm, Vertical 1 cm + 1 ppm. Time to first fix: Cold start <45 s, Warm start <20 s, Re-acquisition ~1 s. Velocity accuracy: 0.03 m/s. Time precision: 5 ns (xPPS out). Event accuracy: <20 ns. Physical & Environmental Size: 47.5 × 70 × 9.32 mm Weight: 27 g. Input voltage: 3.3 VDC ±5%. Power consumption: 750 mW (GPS L1/L2), 1000 mW (all signals). Antenna connectors: 2 × MMCX, supply 3–5.5 VDC, max 150 mA. Operating temperature: -40°C to +85°C. Certifications: RoHS, WEEE, CE, FCC. Durability: MIL-STD-810G vibration tested. Applications Marine survey & dredging Offshore construction & operations Hydrographic mapping Precision navigation for vessels Heading, pitch, and roll determination The AsteRx-m3 Fg combines state-of-the-art GNSS technology, ultra-low power design, and rugged reliability, making it the ideal solution for professionals who demand accuracy, efficiency, and seamless integration in marine environments