Quectel LC79D GNSS Module

Quectel LC79D is a high performance GNSS module supporting multi-constellation GNSS and dual GNSS bands. It can acquire and track GPS, GLONASS, IRNSS, BeiDou, Galileo and QZSS signals. The module can work at L1 and L5 Bands for GPS and GALILEO satellites.

Compared with the GNSS module working at L1 band only, LC79D can generally increase the number of visible satellites, reduce TTFF and enhance positioning accuracy, especially when driving in rough urban environments.

Quectel GNSS LC79D achieves exceptional performance both in acquisition and tracking, and fully meets the industrial standard. With embedded LNA, dual antennas and antenna switch function, it is an ideal product for automotive, consumer and industry tracking applications.

Key Benefits

* Ultra-compact size: 10.1mm × 9.7mm ×2.4mm

* Multi-GNSS engine for GPS, GLONASS, IRNSS, BeiDou, Galileo and QZSS

* Support dual GNSS bands (L1, L5)

* Built-in LNA for better sensitivity

* Reliable anti-jamming performance due to multi-tone active interference canceller

* Support SPI and UART interface

* Support SDK command developed by Quectel

Quectel LC79D module Specifications:

GNSS Features

* Receiving Bands:
- GPS L1 C/A Galileo E1 OS QZSS L1 C/A:
- 1575.42MHz
- GPS L5 Galileo E5a QZSS L5: 1176.45MHz
- IRNSS L5 C/A: 1176.45MHz
- GLONASS L1 OF: 1602.5625MHz
- BDs B1 C/A: 1561.098MHz

* Horizontal Position Accuracy: Autonomous: <1.2m* CEP

* Velocity Accuracy: Without Aid: <0.1m/s

* Acceleration Accuracy: Without Aid: <0.1m/s

* Timing Accuracy: 1PPS: 37ns*

* Reacquisition Time: <2.5s

* TTFF @-130dBm with AGPS:
- Cold Start: <13s*
- Warm Start: <2.5s*
- Hot Start: <2.5s*

* TTFF @-130dBm without AGPS:
- Cold Start: <30.6s
- Warm Start: <28.6s
- Hot Start: <2.5s

* Sensitivity:
- Acquisition: -148dBm
- Tracking: -164dBm
- Reacquisition: -159dBm

* Dynamic Performance:
- Maximum Altitude: 18000m
- Maximum Velocity: 515m/s
- Maximum Acceleration: 4G

Interfaces

* SPI Interface: Up to 50MHz

* UART Interface:
- Adjustable: 115200bps~921600bps
- Default: 115200bps
- Update Rate: 1Hz (Default), up to 10Hz
- I/O Voltage: 1.7V~1.9V, typical 1.8V

* External Antenna Interface:
- Antenna Type: Passive or Active
- Antenna Power Supply: External

Power Management

* Power Supply: 1.7V~1.9V, typical 1.8V

* Power Acquisition: 43mA*@1.8V

* Power Tracking: 40mA*@1.8V

* Power Saving: TBD @Standby Mode

General Features

* Temperature Range: -40°C ~ +85°C

* Dimension: 10.1mm × 9.7mm ×2.4mm

* Weight: 0.6g

* Protocols: NMEA 0183

Approvals

* Regulatory: CE* (Europe)

* Others: RoHS Compliant