The Explorer GX 1600 VHF Radio is designed for easy and convenient mounting. The ultra thin 3.5" deep rear-design case takes up less space when bracket mounting the radio to the dash and offers flexibility if flush mounting the radio. Dedicated channel 70 receiver meets Class D DSC regulations by continuously watching for DSC calls. "Poll" another vessel for its GPS location, and it will show up on the radio's display. Connect at GPS chartplotter to send back your position, SOG, COG, and time. Microphone uses ClearVoice noise reduction technology and has dedicated 16/9 channel, high/low transmit, and channel selection keys. Also features programmable scan, dual watch, priority scan, customizable channel names, all NOAA weather channels with alert, one preset channel, three programmable soft keys, and a backlit do matrix screen. 4 different NMEA inputs/2 different outputs. Submersible to JIS8 standards. 3-year waterproof warranty.