Full-frequency GNSS M643 industrial specification/M643A automotive specification
Product Performance Indicators
Number of tracking channels: 1040
Frequency band: Antenna 1 supports BDS/GPS/Galileo/GLONASS/QZSS/NavIC/SBAS
Frequency band: Antenna 2 supports BDS/GPS/Galileo/GLONASS/QZSS/NavIC. Update rate: 20Hz
Position accuracy: 1.5 m (1σ) / Vertical accuracy: 2.5 m (1σ)
RTK horizontal accuracy: 0.7cm+1ppm (H) 1σ / RTK vertical accuracy: 1.5cm+1ppm (V) 1σ
Hot start: 2s / Cold start: 30s
Interfaces: 3×UART/1×SPI/1×I2C/1×CAN
Main voltage: 3.0‑3.6V
Protocol: NMEA-0183 versions 2.1 and 4.11, RTCM3.3
Power consumption: 450mW (typical value)
Operating temperature: M643/M643A (-40°C ~ +85°C / -40°C ~ +105°C)
Product Features
- • 1040 tracking channel
- • Operating temperature: -40~85°C/-40~105°C
- • Full-frequency, high-precision RF and baseband integrated GNSS SoC design solution
- • The M643 series supports industrial/automotive specifications (AEC-Q104 product certification)
- • Supports module dual-antenna direction-finding function, outputting high-update-rate direction-finding data
- • Developed based on a 22nm RF-SoC chip platform, equipped with a high-performance application processor
- • Equipped with a professional-grade narrowband anti-interference unit for NIC, it exhibits significant suppression effects on single-tone interference and narrowband interference
Application Scenarios






