Superior receiver sensitivity and speaker audio The IC-M411 has excellent receiver performance. The efficient speaker also reproduces a low frequency audio composition for clear and crisp audio. Class D DSC built-in The IC-M411 has a built-in Ch 70 (DSC channel) receiver, which monitors activity, even while you are receiving another channel. When in an emergency situation, an automated distress call can be sent with a touch of a button. Digital selective calling features DSC uses a unique ID (MMSI code), so you can make contact with the intended ID station or group directly, or with all ships in the area. A total of 100 address IDs can be programmed with 10-character address name and up to 20 received DSC messages are stored. Position request and polling request When connected to an external GPS receiver, the position request function allows you to exchange the ships position information. The polling (request/reply) function checks whether a specific ship is in the communication range. IPX7 waterproof protection The IC-M411 and microphone, withstands submersion in up to 1m depth of water for 30 minutes (equivalent to IPX7 waterproofing.*) AquaQuake draining function AquaQuake draining function emits a vibrating sound and clears water away from the speaker grill. NMEA input When connected to an external GPS receiver, the IC-M411 displays the ship’s position. The IC-M411 supports NMEA 0183 Version 2.0 and 3.01. Supported sentence formats are RMC, GGA, GNS and GLL. Large LCD The large LCD shows a full sized channel number and 10 character scrolling channel comment. The 4 levels of LCD backlight make the screen easy to see in all conditions. Simple operation 9 clearly labelled buttons below the display are well spaced for optimum user friendly operation. The “Distress” button is covered with a spring loaded plastic cover to prevent accidental distress call activation. The supplied remote function microphone allows you to select channels and change output power directly. Favourite channel function This function allows for quicker channel selection. Set the “Tag” channel to the channels used most often. When pushing the up/down buttons on the hand microphone, only the tagged channels are selected, while untagged channels are skipped. OTHER FEATURES •Keypad backlighting •Dual watch and Tri-watch functions •External speaker connection •70 programmable channels •Low voltage indicator for low battery alert •UK marina channels included