Introduction to the LG69T (AM) GNSS Module
This document serves as a comprehensive protocol specification for the Quectel LG69T (AM) GNSS module. It provides detailed information on how to interface with and control this advanced Global Navigation Satellite System (GNSS) module.
The LG69T (AM) module is designed for robust positioning and navigation applications, supporting concurrent tracking of multiple satellite constellations including GPS, Galileo, and BeiDou. This capability ensures fast and accurate acquisition across various frequency bands.
The specification outlines the NMEA proprietary commands (PQTM commands) developed by Quectel for module configuration and management, as well as the standard NMEA 0183 output messages that the module generates to report GNSS data.
Key Features Covered:
- NMEA Protocol Structure and Messages (RMC, GGA, GNS, GSV, GSA, VTG, GLL)
- Attitude Messages (VEL, STD)
- Proprietary PQTM Commands for Module Control (Cold/Warm/Hot Start, System Reset, Port Configuration, Parameter Saving/Restoring)
- Appendices with References, GNSS Numbering, and Default Configurations
This technical specification is an essential resource for developers and engineers integrating the Quectel LG69T (AM) GNSS module into their systems.
