Icom M424G Black Vhf Radio Built In Class D Dsc And Gpsmodel: M424G Blacksimple Remote Control Speaker-Microphone, Hm-205B/Swnmea 0183 Connectivitymarinecommander™ Compatibleaquaquake™ Draining Functionipx7 Submersible Protection (1M Depth For 30 Minutes)Weather Channels With Alert Functiondual/Tri-Watch Functionpriority And Normal Scanintuitive User Interface And White Backlit Lcd And Keypad Incorporating Icom’S Common Marine Family User Interface Designed For Simple, Intuitive Operation. A Rotary Selector And Directional Keypad Provide Quick And Easy Access To The Intended Functions. The High Contrast White Backlit Lcd And Laser-Cut Keypad Match Well With Modern Boat Designs.Active Noise Cancelling The Built-In Active Noise Cancelling Provides Superb Performance. It Reduces Background Noise Up To 90% In The Received Signal And 30% In The Transmits Signal.10W Loud Audio, Public Address And Foghorn The Ic-M424G Has A Built-In 10W Amplifier That Increases The Audio Output To An External Pa Speaker. The Public Address Function Allows You To Make An Announcement From The Microphone Like A Loud Speaker, The Foghorn Can Also Be Emitted From The External Pa Speaker.Built-In Class D Dsc The Built-In Dsc Watch Function Monitors Ch. 70 (Dsc Channel) Activity, Even While You Are Receiving Another Channel. Dsc Functions Include: Distress, Individual, Group, All Ships, Urgency, Safety, Position Request/Report, Polling Request And Dsc Test Calls.Built-In Gps Receiver The Built-In Gps Receiver Shows Your Current Position, Date/Time And Can Be Used For Dsc Calls. The Gps Data Source Is Selectable From Internal And External Gps.Optional White Backlit Commandmic™ Hm-195Gb/Gw The Optional White Backlit Commandmic Makes It Convenient For Using The Ic-M424G From A Separate Cabin Or Tower. All Functions Of The Ic-M424G Can Be Controlled From The Commandmic And Can Be Used As An Intercom With The Ic-M424G.Ais Target Call With Ma-510Tr When Connected To The Optional Ma-510Tr Class B Ais Transponder, The Ais Target Call Function Allows You To Make An Individual Dsc Call Without Having To Manually Input An Mmsi Number.Specificationsgeneralfrequency Rangetx - 156.025—157.425 Mhz Rx - 156.050—163.275 Mhz Ch70 - 156.525 Mhzusable Channelsusa, Can, Int, Wx Channelsoperating Temperature Range-20°C To +60°C; -4°F To +140°Fantenna Impedance50Ω (So-239)Nmea In/Out Formatsrmc, Gga, Gns, Gll, Dsc, Dsetransmitteroutput Power @ 13.Vdc25W, 1Wmax Frequency Deviation± 5 Khzfrequency Tolerance±10Ppm (-20°C To +60°C)Spurious Emissionsless Than —70Dbc (High) Less Than —56Dbc (Low)Receiversensitivitymain-13Dbµ Typ. (12Db Sinad)Ch70—5Dbµ Emf Typ. (1% Ber)Squelch Sensitivityless Than —10DbµAudio Output Power (At 10% Distortion, 4Ω Load)4.5W Typicalinput Voltage 13.8V Dc Nominal (11.7—15.9V Dc)Input Drawup To 5.5Ampsdimensions7.09 3.23 4.72 Inwhat'S In The Box:M424G Blackbracket And Knobspowercordhand Microphone Hm205