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

The 7SEMI L89 USB GNSS Receiver integrates the high-performance Quectel L89 GNSS module into a plug-and-play USB dongle form factor. Supporting IRNSS (NavIC) L5, GPS, Galileo, GLONASS, BeiDou, and QZSS, this compact receiver provides high accuracy, fast TTFF, and excellent anti-jamming performance.

With dual embedded antennas (patch + chip) and integrated LNAs, the module operates on L1 and L5 bands simultaneously, improving satellite visibility and positioning accuracy even in challenging urban conditions

This USB GNSS dongle is ideal for navigation, asset tracking, automotive, consumer, and industrial applications requiring multi-band GNSS with India’s NavIC support.

Technical Specifications

GNSS Performance

• Constellations: GPS L1, Galileo E1, IRNSS L5, GLONASS L1, BeiDou B1

• Position Accuracy: < 1.8 m CEP (Autonomous)

• Velocity Accuracy: < 0.1 m/s; Acceleration < 0.1 m/s²

• Timing Accuracy: 1PPS 3.9 ns

• TTFF (with AGPS): Cold < 13 s, Warm < 5 s, Hot < 2 s

• TTFF (without AGPS): Cold < 32 s, Warm < 25 s, Hot < 2 s

Interfaces & Protocols

• USB-UART bridge onboard (plug & play)

• UART: 4800 bps to 921600 bps (default 9600)

• I²C: Up to 400 kbps

• Protocol: NMEA 0183

• Update rate: 1 Hz (default), up to 10 Hz

Board 

• Power supply: 5V.

• Power consumption: 99 mA acquisition, 95 mA tracking @ 3.3 V

• Operating temperature: –40 °C to +85 °C

• Size: 62.82mm x 19.06mm.

• Weight: ~13g 

Applications

•  Automotive navigation with IRNSS/NavIC

•  Asset and fleet tracking systems

•  Industrial and consumer-grade GNSS receivers

•  Urban navigation (dual-band for better multipath rejection)

•  Timing and synchronization (1PPS output)

What’s Included

• 1 × 7SEMI L89 USB GNSS Receiver Board (Quectel L89-based)

Resources

• L89_GNSS Datasheet