Class D DSC (Digital Selective Calling) transceiverDSC Distress key transmits GPS position and a digital maydayNOAA Weather AlertNMEA 0183 input with GPS Position, COG and SOG displayChartplotter position polling using NMEA 0183 outputEasy-to-use rotary controls for channel, volume, squelch and menu operationExtra large dot matrix LCDSpeaker microphone with controls and remote mount optionDual Channel Display (2UP Mode) displays active channel and stand by channel simultaneouslyProgrammable favorite channel soft keys (1UP Mode)Quick Access 16//9 Key4 Scan Modes: All Scan, Saved (Memory) Scan, Priority All Scan and Priority Saved ScanSubmersible (IPX7 Standard)Superior receiver with excellent intermodulation rejectionRugged housing with a low profile bezel using the optional flush mount kit (order # A46053)Optional Raymic remote station handset serves as full function second stationRaymic enables intercom capabilities between Ray55 and Raymic at a remote station