Stay in Contact on the WaterDisplays Automatic Identification System (AIS) on the chartplotterStandard Class D Digital Selective Calling (DSC) functionality (distress calling and direct calling with user-programmed MMSI)In case of trouble, DSC may improve your chances of a rapid ...Stay in Contact on the WaterDisplays Automatic Identification System (AIS) on the chartplotterStandard Class D Digital Selective Calling (DSC) functionality (distress calling and direct calling with user-programmed MMSI)In case of trouble, DSC may improve your chances of a rapid rescue25-watt transmit power with built-in GPSFrequency bands include all U.S., Canadian and international marine channels plus 10 NOAA weather channelsCommunication and situational awareness are critical on the water. This fixed-mount VHF 215 AIS radio displays AIS on the chartplotter to enhance communication, situational awareness and collision avoidance between you and other mariners worldwide.