Explorer Series GX1800G 25W Fixed Mount VHF / GPS / Second Station Capable • Built-in 66 Channel WAAS GPS receiver • Separate Receiver for CH70 (Receiving DSC Calls) • Ultra-slim and compact Rear case design (Depth 3.3", 82mm) • NMEA 0183 Connectivity • E2O (Easy to Operate) Icon & Menu System • Preset key stores up to 10 favorite channels • Second Station Remote Microphone (Optional RAM4 SSM-70H) • Intercom Feature between the Radio and an Optional Second Station • Programmable Scan, Priority Scan, and Multi Watch • Automatic DSC polling of up to 6 ships GPS positions • GPS Compass, Waypoint and GPS status pages • Enter, Save, and Navigate to a waypoint using the Compass page • Navigation (LAT/LON, SOG, and COG) information shown on display • GM (Group Monitor) Using DSC Group position Calling • MOB (Man over Board) Operation • Selectable Night Mode Display • Noise canceling microphone with channel change selection, 16/S and H/L keys • NOAA Weather channels with weather Alert