Overview

QLM29HxAA-GM (QLM29HBAA-GM and QLM29HCAA-GM) is a dual-band multi-constellation smart antenna device with a built-in Quectel dual-band high-precision LC29H module and L1 + L5 high-performance ceramic dual-band antennas. Concurrent reception of L1 and L5 GNSS band signals enhances satellite visibility, reduces multipath interference, and improves positioning accuracy of QLM29HxAA-GM, even in challenging environments like urban canyons, while its plug-and-play design eliminates the need for onboard integration.

QLM29HxAA-GM supports concurrent reception of global and regional GNSS constellations such as GPS, GLONASS, Galileo, BDS, NavIC*, as well as QZSS and SBAS. Integrated LNA, diplexer and SAW, improve sensitivity and enable anti-interference capability. Dual frequency support provides enhanced positioning accuracy of 1 m in autonomous mode and centimeter-level precision in the RTK capable model. The DR function delivers superior positioning performance in areas with weak or absent GNSS signals.

With its storage temperature of up to 105 °C and IP67 waterproof protection, QLM29HxAA-GM offers exceptional reliability in harsh working environments. It is especially suitable for micromobility, agricultural navigation, mining, driving recorders, vehicle insurance data collection, rugged tablets, and golf carts. It can easily upgrade traditional L1 systems via spare RS-232 or USB interface without the need for product redesign. This capability enables quick and efficient terminal upgrades, delivering faster, more stable, and higher-precision positioning results.