Integrated design of RTK positioning module and helical antenna, compact size, easy installation, suitable for integrated applications. Built-in geomagnetic sensor, suitable for compass and electronic compass applications ^^ Multi-constellation and multi-frequency, supports multi-constellation systems including GPS, BeiDou (BDS), GLONASS, Galileo, and QZSS ^^ Supports simultaneous output of RTCM 3.3 and NMEA-0183 protocols, up to 10Hz data update rate, compatible with mainstream differential and positioning systems ^^ Supports A-GNSS positioning enhancement system, significantly reducing time to first fix (TTFF) ^^ Wide-voltage input, 3.3V ~ 16V operating voltage range, suitable for various power supply environments