The KX56MRTK is a low‑power, multi‑system RTK positioning module with centimeter‑level accuracy and integrated TCXO, LNA, SAW and RTC.
The KX56MRTK module integrates the high‑performance MXT906B chip and a built‑in high‑gain antenna to provide reliable centimeter‑level positioning in challenging environments such as urban canyons and vehicle interiors. It supports multiple GNSS constellations (GPS/QZSS, GLONASS, BDS, Galileo) and offers flexible update rates from 1 Hz to 10 Hz.
The module operates from a single 3.3 V‑5 V supply, consumes about 55 mA in normal operation, and includes a QMC5883L electronic compass. It provides TTL/UART and RS232 interfaces, a 6‑pin GH connector, and supports NMEA0183 and RTCM3.X protocols for both standard and differential RTK data. This manual is written in Chinese.
| Frequency Bands | BDS B1I, B2I; GPS/QZSS L1C/A, L2C; GLONASS L1, L2 |
|---|---|
| Tracking Sensitivity | -160 dBm |
| Capture Sensitivity | -146 dBm |
| Power Supply Voltage | 3.3 V‑5 V (typical 5 V) |
| Current Consumption | ≈55 mA (normal operation) |
| Dimensions | 56 mm × 56 mm × 18 mm ±0.3 mm |
| RTK Positioning Accuracy | 0.02 m +1 ppm |
| Update Rate | 1 Hz‑10 Hz selectable |
| Maximum Operating Altitude | 50 000 m |
| Maximum Speed | 500 m/s |
It operates from a DC supply of 3.3 V to 5 V, with 5 V as the typical value.
The module provides RTK accuracy of 0.02 m plus 1 ppm error.
Data can be output via TTL (UART) or RS232 levels through the 6‑pin GH connector.
It supports BDS, GPS/QZSS, GLONASS, and Galileo signals.