Advanced multi-station VHF with intuitive touchscreen operation. Full Class B SOTDMA with smartAIS send and receive and integrated no-loss splitter. Monitor and control onboard systems and keep alerted on board or ashore from your smartphone. Includes M1 hub, tethered H1 handset and accessories; Built-in Class B SOTDMA with no-loss antenna splitter; Built-in WiFi and Cellular connectivity on monitoring on board and ashore; Low power consumption hub; 10Hz GPS antenna; 4-inch multi-touch display with gorilla glass for maximum durability; Single hand operation with click wheel and dedicated buttons; Wet and glove capable touchscreen; Optically bonded display for wide-angle and sunlight viewability, even in the harshest midday sun; 85 dBA of crystal-clear audio; Combined AIS and VHF display with voiced alerts; Touch a vessel onscreen for direct calling (DSC). Operating Temperature: -25°C to +55°C (-13°F to 131°F); Supported Protocols: AIS Class B SO-TDMA, VHF Voice, Class D DSC, ATIS (user configurable, EU region), NOAA Weather (US region); Transmitter Frequency Error: Less than 300Hz; Antenna Connector: SO239; Splitter: Max input power 25W, Insertion Loss RX 0dB, TX < 1dB; Splitter Connector: BNC (2W).