GNSS-RTK High Precision Positioning Kit with LoRa (US 915 MHz, GPS / GLONASS / Galileo / BDS / QZSS)

The GNSS-RTK High Precision Positioning Kit is a dual-module system engineered to deliver centimetre-level location accuracy using Real-Time Kinematics. Featuring pre-configured base and rover modules linked over 915 MHz LoRa, it provides a standalone positioning solution without requiring internet connectivity. It is well suited for autonomous rovers, UAV navigation, geospatial surveying, and research prototyping.

Ready-to-use RTK architecture

The kit eliminates complex multi-module configuration by pairing a dedicated base station and mobile rover out of the box. Users can establish a centimetre-level positioning link within minutes without external NTRIP services or separate radio modems.

Dual-band multi-constellation engine

Built around Quectel LC29H series modules, the receiver tracks L1 and L5 bands across GPS, GLONASS, Galileo, BDS, and QZSS constellations concurrently. This dual-band reception effectively mitigates ionospheric errors, enabling fast convergence to a fixed RTK solution in under 10 seconds.

Integrated 915 MHz LoRa telemetry

Correction data is transmitted wirelessly via Semtech LLCC68 LoRa transceivers operating at 915 MHz with up to 22 dBm transmit power and -129 dBm sensitivity. The wireless link achieves reliable open-air communication ranges of up to 1.5 kilometres for fieldwork in remote locations.

Flexible hardware interfaces

The mobile rover module connects via a 3.3V to 5V Gravity interface supporting standard I2C and UART signal outputs. The base station accepts 5V to 10V power via a screw terminal block or USB Type-C connection, communicating via standard NMEA 0183 and RTCM 3.x protocols.

High-precision dynamic performance

The rover delivers horizontal RTK accuracy of 5 cm plus 1 ppm alongside 0.03 m/s velocity accuracy and a 20 ns 1PPS timing signal. Dynamic tracking handles operational limits up to 10000 metres altitude, 500 m/s velocity, and 4 g acceleration.

Complete out-of-the-box package

The kit includes the RTK base station, RTK mobile rover, two GNSS antennas, and two TX915-JKD-20 LoRa antennas. It also comes supplied with a 30 cm PH2.0-4P connection cable, plug-in terminal block, and a flathead screwdriver.

Downloads & documentation

• Product wiki (DFRobot)