Standard Horizon Fixed Mount VHF w/GPS - White. The GX1800G makes DSC easy. With an internal 66 Channel GPS built into the front panel there is no need to hassle with wiring the radio to a GPS for DSC. Out of the box and ready to go DSC calling position sharing waypoint navigation navigation to DSC distress calls can all be performed with just a few simple steps.Second Station RAM4 compatibilityNow compatible with Standard Horizon's latest second station microphone RAM4 model SSM-70. All functions on the main radio can now be controlled on the Second Station RAM4 this includes all radio functions DSC functions and intercom Specifications for Standard Horizon GX1800G Fixed Mount VHF w/GPS: Manufacturer: Standard Horizon Color: White Features of Standard Horizon GX1800G Fixed Mount VHF w/GPS AIS: No Built-In GPS: Yes Channels - Available: All US Canadian International DSC Class: D Hailer/Intercom: N/A NMEA 2000: No Power - Output (Watts): 25w Remote Mic Capable: Yes Scrambler Capable: No Weather Alert: Yes Package Contents: Standard Horizon GX1800G Fixed Mount VHF w/GPS Standard Horizon GX1800GW: GX1800G Fixed Mount VHF w/GPS - White