Standard Horizon Explorer GX1600 Fixed Mount VHF RadioMounting a VHF radio has never been easier. The Explorer GX1600 has an ultra thin, compact rear case, only 3.5" in depth or half the depth of comparable VHF radios on the market.Features: Ultra thin and compact rear case design (3.5" depth); Meets ITU-R M493-12 Class D DSC (Digital Selective Calling) with Individual, All ship, Position Report, Request and Distress; Navigation to a DSC Distress Call with compass page; Automatically poll the GPS position of up to 4 ships using DSC; Enter, Save, and Navigation to waypoint with Compass page; GPS Compass display; Navigation (LAT/LON, SOG, and COG) information shown on display; Submersible JIS-8 1.5M (4.92Ft) for 30 minutes; Noise canceling microphone with channel UP/DOWN, 16/9 and H/L keys; NOAA weather channel selection with alert; Programmable Scan, Priority Scan, and Dual Watch; GPS repeating of position, SOG, COG and time; Customizable channel names; Oversized dot matrix display; NMEA Input and Output; Programmable soft keys; Capable of connecting to a Second Station CMP30 Remote Access Microphone; Overall Dimension: 5.91"(w) x 3.35"(H) x 3.54"(D); Flush mount cutout: 5.35"(W) x 2.80"(H) x 2.56"(D); 3 Year Waterproof Warranty;