High-performance GPS, GLONASS, and Galileo GNSS antenna for exceptional reliability and accuracy. 72-channel sensor, <1m accuracy, 10m cable, low power consumption <20mA, "Man Overboard" (MOB) function: When activated, the antenna transmits an AIS MOB message via the NMEA interface to activate the MOB position on the chartplotter. Self-powered version compatible with PC/Mac/Linux