7Semi L89 USB Dongle Multi-GNSS Engine for GPS, IRNSS, GLONASS, BeiDou, Galileo and QZSS

The 7Semi L89 USB Dongle is a high-performance multi-GNSS receiver designed to provide accurate and reliable location positioning. It integrates the Quectel L89 GNSS engine and supports multiple satellite systems simultaneously, including GPS, IRNSS (NavIC), GLONASS, BeiDou, Galileo, and QZSS. With a compact USB dongle form factor, built-in antennas, strong sensitivity, and fast time-to-first-fix, it is ideal for embedded systems, industrial deployments, vehicle tracking, robotics, and outdoor positioning applications.

Technical Specifications:

• Supported GNSS: GPS (L1), Galileo (E1), GLONASS (L1), BeiDou (B1), QZSS, IRNSS/NavIC (L5)
• Position Accuracy: < 1.8 m CEP (autonomous mode)
• Update Rate: 1 Hz default, up to 10 Hz
• TTFF (Time to First Fix): Cold < 32 s, Warm < 25 s, Hot < 2 s
• Sensitivity: Acquisition ~ –147 dBm, Tracking ~ –163 dBm
• Velocity Accuracy: < 0.1 m/s
• Acceleration Accuracy: < 0.1 m/s²
• 1PPS Timing Accuracy: ~3.9 ns RMS
• Communication Interfaces: USB-UART bridge, UART, I²C
• Power Supply: USB 5 V
• Current Consumption: ~99 mA acquisition / ~95 mA tracking
• Operating Temperature: –40 °C to +85 °C

Features:

• Multi-constellation GNSS including NavIC/IRNSS for enhanced positioning performance
• Dual-frequency support improves accuracy in dense or obstructed environments
• Compact plug-and-play USB dongle format
• High-sensitivity receiver with fast lock times
• High update frequency suitable for dynamic systems
• Industrial-grade temperature range
• Anti-jamming capability and stable 1PPS output for timing synchronization
• Suitable for both stationary and high-mobility applications

Applications:

• Vehicle, fleet, and asset tracking
• Navigation systems for robotics and drones
• IoT and industrial GNSS positioning
• Portable GNSS receivers and outdoor location tools
• Smart city infrastructure and traffic systems
• Surveying, mapping, and telemetry
• Accurate timing and synchronization solutions