Design sketch
Single-band, Full-constellation GNSS Module with an Integrated Antenna
The ME3GGR31 is a single-band, full-constellation GNSS module with an integrated antenna. Leveraging a multi-constellation RF front-end architecture, it simultaneously receives signals from all four major GNSS constellations (GPS, Beidou, Glonass, and Galileo) while also supporting QZSS and SBAS satellites. This ensures the receiver delivers outstanding sensitivity and acquisition capabilities. Its superior interference suppression enables reliable positioning even under challenging signal conditions. The multi-constellation design significantly increases the number of visible satellites in dense urban canyons, reduces the time to first fix, and enhances positioning accuracy, providing precise location services even in harsh environments.
ME3GGR31 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； |
Long-term Ephemeris Saved | Support 7-day ephemeris data preservation and prediction |
Positional Accuracy2 | open sky：<1.5 m (CEP) |
Velocity Accuracy2 | <0.05 m/s |
Time Accuracy2 | 20ns |
Operating Temperature | -40°C to +85°C |
Refresh Rate | Default GNSS: 1Hz, maximum 10Hz supported |
Baud | Main Serial Port 115200bps (factory default) |
Supported Protocols | NMEA 0183 protocols Ver. 4.10， RTCM 3.x |
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