Quectel LC79D GNSS Dual-Band Multi Constellation Module - SATRON electronics
  • Quectel LC79D
  • Quectel LC79D
Quectel LC79D
Dual-band GNSS Module
  • Support AGNSS
  • Multi-GNSS engine
  • 10.1×9.7×2.4mm

Featuring a concurrent multi-constellation GNSS receiver on dual GNSS bands, LC79D can work on L1 and L5 bands for GPS, Galileo and QZSS satellites, L1 band for GLONASS and BeiDou satellites as well as L5 band for IRNSS satellite.

Compared with the GNSS modules working on L1 band only, LC79D greatly increases the number of satellites involved in tracking and positioning, thereby significantly reducing the multipath effect caused by tall buildings in urban environments, reducing signal acquisition time and improving positioning accuracy.

LC79D is AIS-140 compliant, and its on-board LNAs and SAW filters serve to ensure better positioning in weak signal areas and other harsh environments. The GNSS chipset using 28nm process technology, coupled with the advanced low-power management solution, enables low-power GNSS sensing and positioning determination and makes the module an ideal solution for power-sensitive and battery-powered systems.

Due to its excellent performance in improving position drift and enhancing positioning accuracy in rough urban canyons, LC79D has become a popular selection for real-time tracking systems, sharing economy applications and so on.

Key benefits

  • Ultra-compact size: 10.1×9.7×2.4mm
  • Multi-GNSS engine for GPS, GLONASS, IRNSS, BeiDou, Galileo and QZSS
  • Support dual GNSS bands (L1, L5)
  • Support AGNSS
  • Built-in LNA for better sensitivity
  • Support SPI, UART and I2C interfaces
  • Support SDK command developed by Quectel
  • Support UDR (Untethered Dead Reckoning) in host mode
Dual-Band GNSS Module LC79D
Region Global
Dimensions 10.1 mm × 9.7 mm × 2.4 mm
Weight Approx. 0.42 g
Working Mode Standard Mode/ Two-wheel DR Mode* (Optional)/ Four-wheel DR Mode* (Optional)
Embedded Flash Supported
Temperature Range
Operating Temperature -40 °C to +85 °C
Extended Temperature -40 °C to +90 °C
GNSS Features
Supported Bands GPS L1 C/A, Galileo E1, QZSS L1: 1575.42 MHz
GPS L5, Galileo E5a, QZSS L5: 1176.45 MHz
IRNSS L5: 1176.45 MHz
GLONASS L1: 1602.5625 MHz
BeiDou B1: 1561.098 MHz
Default GNSS Constellation GPS + BeiDou + Galileo + GLONASS + QZSS
Channels 32 Channels
Horizontal Position Accuracy Autonomous: < 1.2 m CEP
Velocity Accuracy Without Aid: < 0.1 m/s
Acceleration Accuracy Without Aid: < 0.1 m/s²
TTFF (with AGNSS) Cold Start: < 5 s
TTFF (without AGNSS) Cold Start: < 34 s
Warm Start: < 30 s
Hot Start: < 2 s
Sensitivity Acquisition: -147 dBm
Tracking: -163 dBm
Reacquisition: -158 dBm
Dynamic Performance Maximum Altitude: Max 18000 m
Maximum Velocity: Max 515 m/s
Maximum Acceleration: 4g
Certifications
Regulatory CE
Others RoHS
Interfaces
SPI Interface* Multiplexed from UART
I2C Interface Works on master mode
UART Interface Adjustable: 115200–921600 bps
Default: 115200 bps
Update Rate: 1 Hz
I/O Voltage Typical 1.8 V
Protocols NMEA 0183
External Antenna Interface
Antenna Type Passive or Active
Antenna Power Supply External or Internal (through VCC_RF)
Electrical Features
Supply Voltage Range 1.7–1.9 V, Typ. 1.8 V
Current Consumption (@ 1.8 V, Standard Mode) Normal Operation: 47 mA @ Acquisition
43 mA @ Tracking
Power Saving Modes: 200 μA @ Sleep Mode
88 μA @ Standby Mode

Note:
*: under development/ planning.

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