Quectel LC29H Dual-Band Multi-Constellation GNSS Module with RTK and DR Functions - SATRON electronics
Quectel LC29H
Dual-band GNSS Module

  • High-precision, dual-band GNSS module
  • 12.2 mm × 16.0 mm × 2.5 mm
  • Approx. 0.9g
  • GPS/QZSS, GLONASS, BDS, NavIC and Galileo
  • Operating temperature of -40°C to +85°C
LC29H is a series of dual-band, multi-constellation GNSS modules that support the concurrent reception of all four global GNSS constellations: GPS, BDS, Galileo, NavIC and GLONASS.
Compared to GNSS modules that track only L1 signals, the LC29H series can receive and track a higher number of visible satellites in multi bands, thereby significantly mitigating the multipath effect in deep urban canyons and improving positioning accuracy. By having an internal LNA and SAW filter, the module achieves better sensitivity and anti-interference capability. Featuring dual frequency support, the module delivers CEP accuracy values of 1m in autonomous mode and centimeter levels in the RTK capable variants. The optional dead reckoning function ensures the module’s superior positioning performance even in weak signal areas or when GNSS signals are not available.
Based on the receiver chip using 12nm technology, the LC29H series provides advanced power management enabling low-power GNSS sensing and position fixing, which makes the module an ideal solution for power-sensitive and battery-powered systems. Featuring high-precision positioning and low power consumption, the LC29H series is perfectly suited for applications such as real time tracking and sharing economy related services.
To learn more about Quectel’s RTK Correction Solution, which can be used with some LC29H variants to achieve centimeter-level accuracy in challenging conditions, please click here.

An overview of key distinctions between LC29H variants can be found below:

LC29H (AA) Dual band (L1+L5), standard precision
LC29H (BA) Dual band (L1+L5) high precision GNSS with RTK and DR functions
LC29H (CA) Dual band (L1+L5) standard precision GNSS with DR function
LC29H (DA) Dual band (L1+L5) high precision GNSS with 1Hz RTK function
LC29H (EA) Dual band (L1+L5) high precision GNSS with 10Hz RTK and dual antenna heading functions
LC29H (AI) Dual band (L1+L5), standard precision

Key Features

  • Multi-GNSS engine supporting GPS, GLONASS, BDS, Galileo, NavIC and QZSS
  • Concurrent reception of L1 and L5 GNSS band signals
  • Optional RTK functionality offering centimeter-level accuracy within seconds
  • Optional integrated dead reckoning (DR) function for enhanced position availability in GNSS-denied areas, supporting both 4-wheel and 2-wheel applications
  • Support for GNSS and IMU raw data
  • LC29H (AA) includes Galileo OSNMA anti-spoofing technology

GNSS Features

Supported Bands:

  • GPS L1 C/A, QZSS L1: 1575.42 MHz
  • BeiDou B1: 1561.098 MHz
  • GLONASS L1: 1602.5625 MHz 

Default GNSS Constellation:

  • GPS + GLONASS + Galileo + BDS + QZSS

Horizontal Position Accuracy:

  • Autonomous: 1 m

Velocity Accuracy: Without Aid: TBD

Acceleration Accuracy: Without Aid: TBD

TTFF (with AGNSS):

  • Full Cold Start: 16 s
  • Warm Start: 2 s
  • Hot Start: 1 s

TTFF (without AGNSS):

  • Full Cold Start: 31 s
  • Warm Start: < 24 s
  • Hot Start: < 1 s

Sensitivity:

  • Acquisition: -147 dBm
  • Tracking: -165 dBm
  • Reacquisition: -159 dBm

Dynamic Performance:

  • Maximum Altitude: Max 10000m
  • Maximum Velocity: Max 500 m/s
  • Maximum Acceleration: 4 g

Certifications

Regulatory: Europe: CE*
Others: RoHS

Interfaces

I2C: Up to 400 kbps

UART Interface:
    Adjustable: 9600 to 921600 bps

    Default: 115200 bps
    Update Rate: 10 Hz (Max)

Protocols: NMEA 0183

External Antenna Interface

Antenna Type: Active
Antenna Power Supply: External or Internal (through VDD_RF)

Electrical Features

Supply Voltage Range: 3.1–3.6 V, Typ. 3.3 

I/O Voltage: Typ. 2.8 V 

Current Consumption (@ 3.3V):

Normal Operation:
    24 mA @ Acquisition (default GNSS)
    
24 mA @ Tracking (default GNSS)
Power Saving Modes:
    0.7 mA @ Standby Mode
    25 uA @ Backup Mode

Temperature Range

Operation Temperature: -40 °C to +85 °C
Storage Temperature: -40 °C to +90 °C

Dimensions (mm): 12.2 × 16.0 × 2.5

Weight (g): Approx. 0.9g

Please download the Specification for further information

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