Design sketch
Single-band, Multi-constellation GNSS Module
The ME31GR02 is a single-band multi-constellation GNSS module that supports GPS, Beidou, Glonass, Galileo, as well as QZSS and SBAS. Its advanced RF front-end architecture enables simultaneous reception of all major satellite systems, ensuring high sensitivity, fast acquisition, and strong interference resistance. This enhances positioning accuracy, even in challenging environments like urban canyons, by increasing the number of visible satellites and reducing time-to-first-fix.
With its reliable and precise positioning capabilities, the ME31GR02 is ideal for vehicle tracking, two-wheeler navigation, shared e-bikes, T-Box applications, in-car navigation, fleet management, industrial vehicles, and inspection operations.
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ME31GR02 Parameters | |
Operating Frequency | GPS/QZSS L1 C/A: 1575.42±1.023 MHz BDS B1I: 1561.098±2.046 MHz B1c: 1575.42±16.368 MHz GLONASS G1: 1598.063 -1605.375 MHz GALILEO E1: 1575.42±2.046 MHz QZSS L1 C/A: 1575.42±1.023 MHz SBAS L1 C/A: 1575.42±1.023 MHz |
Sensitivity1 | Cold start: -148dBm; Recapture: -159dBm； Track: -165dBm； |
First Positioning Time1 | Cold start: ≤28s; Hot start: 1s； |
Positional Accuracy2 | Open Sky: <1.5 m CEP |
Velocity Accuracy2 | <0.05 m/s |
Time Accuracy2 | 20ns |
Operating Temperature | Operating temperature: -40°C to +85°C |
Refresh Rate | Default GNSS: 1Hz, maximum 5Hz supported |
Baud | Main Serial Port 115200bps (factory default) |
RTCM Differential Output | RTCM3.x exports |
Supported Protocols | NMEA 0183 protocols Ver. 4.0/4.1， RTCM 3.x |
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