Design sketch
Single-frequency, Full-constellation GNSS Module
The ME31GR01 is a single-frequency, full-constellation GNSS module. Its multi-constellation RF front-end architecture enables simultaneous reception from all four major GNSS constellations (GPS, Beidou, Glonass, and Galileo), with support for QZSS and SBAS satellites. This provides the receiver with excellent sensitivity and acquisition capabilities. The module's superior interference suppression characteristics ensure reliable positioning even in challenging signal conditions. The multi-constellation combination significantly increases the number of visible satellites when navigating in dense urban canyons, reduces the time to first fix (TTFF), and improves positioning accuracy, enabling precise location tracking even in harsh environments.
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ME31GR01 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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