Exvist Quectel LC29HBAMD LC29HBAMD Multi-Band GNSS RTK Module | L1/L5 High-Precision Positioning for Industrial & Automotive Applications

EXVIST Quectel LC29HBAMD Dual-Band GNSS Module Data Sheet Centimeter-Level Positioning Infrastructure for SKYRS Pakistan

The EXVIST Quectel LC29HBAMD is a surface-mount, high-precision GNSS module designed specifically for cutting-edge positioning applications requiring absolute location intelligence. Combining concurrent multi-constellation reception with L1 and L5 dual-frequency bands, this module drastically mitigates multipath errors in dense urban corridors and challenging topographic conditions.

The “BA” configuration includes built-in Real-Time Kinematic (RTK) positioning and Dead Reckoning (DR) fusion through an integrated Inertial Measurement Unit (IMU), ensuring sub-meter to centimeter accuracy for unmanned systems, precision farming, and fleet telematics across Pakistan.

Core Technical Specifications

• Form Factor: Standard LCC Stamp-Hole Package (16.0mm × 12.2mm × 2.5mm)

• Mass: Approximately 0.9 grams (Ultra-lightweight footprint)

• Architecture Chipset: Advanced 12nm multi-frequency processing engine

• Supported Bands:

  • GPS / QZSS: L1 C/A, L5

  • Galileo: E1, E5a

  • BeiDou (BDS): B1I, B2a

  • GLONASS: G1

• Horizontal Position Accuracy:

  • Autonomous Mode: 1.0 meter CEP

  • RTK Mode Enabled: < 0.1 meter (Centimeter precision)

• Vertical Position Accuracy (RTK): 2.5 cm + 1 ppm

• Sensitivity Matrix:

  • Tracking: -165 dBm

  • Acquisition: -145 dBm

  • Reacquisition: -157 dBm

• TTFF (Time to First Fix with AGNSS): Cold Start ~ 5 seconds | Hot Start ~ 1 second

• Maximum Update Rate: Up to 10 Hz (PVT) | 100 Hz (Internal IMU data)

• Communication Interfaces: 2 × UART (Default: 115200 bps), 1 × I2C (Up to 400 kbps), 1 × SPI

• Voltage Profile: 3.1V to 3.6V (3.3V Nominal)

Module Positioning Features via SKYRS Pakistan

The LC29HBAMD variant is custom-engineered to overcome satellite shading and interference patterns unique to regional environments. Through SKYRS, this engine is optimized to coordinate seamlessly with local terrestrial correction reference networks.

Key Features Built into the SKYRS Provisioned Variant:

• Dual-Band Filtering: Tracks both L1 and L5 signals simultaneously to filter out ionospheric interference, a common issue in South Asian atmospheric zones.

• Integrated LNA & Diplexer: Enhances signal reception under heavy tree cover or deep inside urban areas (such as Karachi, Lahore, and Islamabad).

• Active Jamming Cancellation (AIC): On-board multi-frequency interference filtering suppresses cellular baseband crosstalk from local 4G/5G towers.

• RTK + DR Hybrid Engine: Even when driving through underground tunnels or under deep bypass structures where satellite lines of sight are lost completely, the internal IMU seamlessly dead-reckons position metrics to prevent system drops.

Deployment and Field Installation Guide

The ultra-compact footprint of the LC29HBAMD requires precision peripheral implementation to fully unleash centimeter-level tracking.

SMT Integration and PCB Placement

1. Soldering Parameters: The LCC layout is designed for standardized SMT reflow lines. Place the module away from high-frequency switching regulators, microprocessors, and high-speed USB data traces to prevent electromagnetic interference (EMI).

2. Antenna Pathing: Maintain a strict 50-ohm trace impedance between the module’s RF input pad and the antenna connector.

3. Antenna Selection: For RTK capabilities, use an active dual-band (L1+L5) high-gain external GNSS patch antenna. Ensure the active antenna power supply line is adequately filtered with decoupling capacitors.

4. Backup Power: Connect a 1.8V to 3.3V rechargeable coin-cell battery or supercapacitor to the VBACKUP pin. This retains ephemeris data, enabling 1-second hot starts when main system power cycles.

Configuration and RTK Protocol Setup

The module handles bidirectional data exchanges via standard NMEA 0183 output sentences and proprietary binary input configurations.

System Calibration Sequences Establish communication using a 3.3V TTL UART connection at 115200 bps:

• Test Module Responsiveness: $PAIR002*38 -> Verification handshake command.

• RTK Base Correction Input: The module automatically ingests standard RTCM 3.x correction data injected via the secondary UART interface from an external internet-connected NTRIP client.

• Audit Fixed/Float Status: Monitor the $GNGGA sentence structure. Check the Position Fix Indicator field:

  • Value 1 or 2: Standard GNSS/DGNSS fix (Meter accuracy).

  • Value 4: RTK Fixed Status achieved (Centimeter accuracy).

  • Value 5: RTK Float Status (Decimeter accuracy).

• Update Rate Optimization (For Drones/Robotics): Configure the system output rate to 5 Hz or 10 Hz via command parameters to enable real-time navigational control loops.

Availability and Custom Engineering Support Exclusively at SKYRS

The specialized EXVIST Quectel LC29HBAMD high-precision dual-band GNSS modules, alongside carrier-grade RTK evaluation boards, active multi-frequency GNSS antennas, and interface conversion accessories, are available only at SKYRS within Pakistan.

The SKYRS Enterprise Advantage

• Direct Audited Sourcing: Guaranteed supply of genuine LC29HBAMD LCC modules directly verified against national geodetic network baseline data.

• RTK Infrastructure Integration: Comprehensive technical consulting to connect your hardware nodes to local NTRIP reference stations and private RTK base stations across Pakistan.

• Pre-Configured Telemetry Staging: Ready-to-deploy hardware configuration kits, combining the LC29HBAMD with matching dual-band antennas, interface adapters, and pre-flashed configuration scripts optimized for immediate field deployment.

• Localized Engineering Desk: On-site hardware debugging, RF shield optimization, and localized warranty management to minimize deployment lead times.