Working process: Menu-> Receiver->Port or SensorAPI to get data from GPS Receiver after instialled GNSS software (Software can be downloaded from CD-ROM and Official website),Compatible: Win 11/10/ Win 8/ Win 7/Vista/XP/98/CE. Free GNSS Evaluation Software. 56-Channel All-IN-VIEW Tracking,USB Port, Magnetic base, High sensitivity and Strong Singal,Protocol: NMEA 0183,Cable Length 6.5 Ft / 2 Meters , IPX4 Water Resistance / Dust-tight.,Support OpenCPN, Kali Linux, Realtime Google-Earth Pro and maps. 1 Year Warranty.