GNSS LG77L series
- GNSS module
- 7.0 mm × 7.0 mm × 2.0 mm
- 0.2g
- Multi-Constellation GNSS engine for GPS, GLONASS (or BDS), Galileo and QZSS
- Operating temperature range of -40°C to +85°C
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Key features
- Extremely compact size: 7.0 mm × 7.0 mm × 2.0 mm
- Multi-Constellation GNSS engine for GPS, GLONASS (or BDS), Galileo and QZSSS
- Supports anti-jamming technology and a multi-tone active interference canceller
- Multiple low-power modes ensure ultra-low power consumption
- UART and I2C interfaces
- Maximum update rate: 10 Hz
- SDK commands developed by QuectelAGNSS technology
Overview
Quectel LG77L (C) GNSS module is a single-band multi-constellation module, which can acquire and track any mix of GPS, GLONASS, Galileo, BDS and QZSS. It also supports multiple SBAS signals.
Compared with single constellation receivers, by enabling multiple GNSS constellations, the LG77L (C) moduleincreases the number of visible satellites, reduces the time to first fix, and improves positioning accuracy, especiallyin dense urban canyons.
By integrating EASY (Embedded Assist System), an advanced AGNSS feature, and GLP (GNSS Low Power), theLG77L (C) module achieves a combination of high performance and low power consumption, meeting industrialstandards. The EASY technology enables automatic orbit calculation and prediction using ephemeris data stored inthe internal RAM for up to 3 days. In addition, the module supports downloading orbit prediction data for up to 30days through EPO technology. As a result, the LG77L (C) can fix a position quickly, even under low signal levels, whilemaintaining low power consumption. Furthermore, the GLP technology enables adaptive adjustment of the on/offtime based on the environmental and motion conditions, striking a balance between positioning accuracy and powerconsumption.
The low power consumption significantly extends the battery life of wearable products and tracking devices, such as smart watches, pet trackers, small portable goods trackers, anti-theft devices, student ID cards and elderly frail care devices. With its enhanced performance, the LG77L (C) module is ideal for industrial PDA, consumer and industry applications, such as, electronic dog collars, shared bicycles, electric motorcycle tracking devices, asset tracking devices, and fleet management systems.
