Design sketch
Dual-Frequency RTK GNSS Module for Centimeter-Level Positioning
The ME3RGR01 is a high-performance dual-frequency GNSS module designed for applications requiring reliable and precise positioning. Supporting L1 + L5 concurrent reception and an integrated RTK engine, it enables centimeter-level positioning accuracy, making it ideal for both industrial and consumer-grade location-based solutions.
Built on a multi-constellation architecture, the module simultaneously tracks GPS, BeiDou, GLONASS, and Galileo, while also supporting QZSS, NavIC, and SBAS. This ensures improved satellite visibility, faster time to first fix (TTFF), and stable performance even in challenging environments such as urban canyons.
With high sensitivity and strong interference suppression, the ME3RGR01 maintains reliable positioning under weak signal conditions. Its low-power design, compact 16 × 12 mm package, and industrial-grade operating range make it easy to integrate into space-constrained and battery-powered devices.
The ME3RGR01 is well suited for a wide range of applications, including vehicle tracking, shared mobility, fleet management, navigation systems, surveying, and handheld terminals.
ME3RGR01 Parameter | |
Horoscope | GPS: L1 C/A, L5 BDS: B1I, B1C, B2a, GLONASS: L1 GALILEO: E1, E5a QZSS：L1 C/A, L5 SBAS: WAAS,EGNOS,MSAS,GAGAN,SDCM IRNSS/NAVIC：L5 |
Operating Frequency | GPS/QZSS L1：1575.42±1.023 MHz L5: 1176.45MHz±10.23 MHz BDS B1I：1561.098MHz±2.046 MHz B1C: 1575.42±16.368 MHz B2a: 1176.45MHz±10.23 MHz GLONASS G1：1598.063 -1605.375 MHz GALILEO E1: 1575.42±2.046 MHz E5a: 1176.45MHz±10.23 MHz IRNSS/NAVIC: L5 L5: 1176.45MHz±10.23 MHz SBAS L1 C/A：1575.42±1.023 MHz |
Sensitivity1 | Cold Start: -148dBm; Recapture: -159dBm; Tracking: -165dBm; |
First positioning time1 | Cold start: ≤24 seconds; Hot start: 1 sec; |
Positional Accuracy2 | Single-point localization: Open sky: <1.0 meters CEP RTK: Horizontal positioning accuracy: 1cm+1PPM CEP Elevation accuracy: 2cm+1PPM CEP |
Speed Accuracy2 | <0.05 m/s |
Time Accuracy2 | 20 nanoseconds |
Operating Temperature | Operating temperature: -40°C to +85°C |
Refresh rate | Default GNSS: 1Hz, maximum support up to 10Hz |
Baud | Main Serial Port 115200bps (factory default) |
RTCM differential output | RTCM 3.x Output |
Supported Protocols | NMEA 0183 Protocol Ver. 4.0/4.1 RTCM 3.x |
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