The Raymarine A50D GPS Chartplotter-Fishfinder is a powerful yet compact navigation system combined with our award winning HD Digital fishfinder technology. The Raymarine A50D features a vibrant direct sunlight viewable high resolution 5" VGA color display. The rugged waterproof construction make the Raymarine A50D a perfect fit for center consoles and open cockpits. While this Raymarine A50D does not include any preloaded charts, enjoy the flexibility of adding optional Navionics Gold or HotMaps charts using the onboard CompactFlash card reader. Or step up to Navionics Platinum for the ultimate chartplotting experience. Navionics Platinum charts feature 3D and satellite cartography, panoramic port photos, dynamic tides & currents, enhanced coastal points of interest, and more! Each Raymarine A50D features a high sensitivity internal WAAS GPS receiver providing pinpoint chartplotter accuracy. For added flexibility add a RayStar 125 GPS antenna for situations where an external GPS antenna is needed. Combine GPS and VHF technology for added situational awareness and safety. The Raymarine A50D utilizes DSC position polling (with DSC equipped VHF) and AIS target tracking (with optional AIS250) right on your chart Harnessing the power of Raymarine's HD Digital fishfinder technology, the Raymarine A50D's built-in digital sounder module offer unmatched fishfinder clarity and precision. Our patented HD Digital technology enables the A50D to instantly adapt to changing water and seabed conditions, delivering a dramatically clearer picture than ordinary analog fishfinders. Plus HD Digital technology enables true "hands-free" automatic operation, for an optimal fishfinder display at all times. Also enjoy full chartplotter integration, the Raymarine A50D lets you mark fish targets or wrecks as waypoints. Easily switch screens back to the chartplotter and navigate right to your target!Simply plug in to the included transom mount transducer and you have the ultimate digital fishfinder. Using the same patented HD Digital technology as its big-brother DSM300, the Raymarine A50D's built-in sounder packs 500 watts RMS of power with a dual frequency (50-200 Khz) transceiver for excellent inshore and offshore performance. Directly compatible with the full array of A-Series transducers, and adaptable to the DSM300 family of transducers*, a wide selection of styles are available to fit almost any boat including transom mounts, thru-hull mounts and in-hull solutions. The Raymarine A50D comes with our innovative tilt and swivel bracket featuring a quick release lever. Once the Raymarine A50D is off the boat keep your cables tidy and protected with the built-in cable management system and protective cable caps. A flush mount kit is also available for other helm applications. Add the optional SR50 weather receiver and the Raymarine A50D becomes a powerful weather receiver utilizing SIRIUS Satellite weather technology. Graphical Nowrad radar, sea surface temperatures, storm tracks, city & buoy forecasts are now all at your fingertips. The Raymarine A50D is also SIRIUS Satellite radio capable, simply connect the SR50 to your boat's existing stereo's auxiliary input. You have complete control of channels, volume, and can even set reminders for favorite songs and artists on over 100 SIRIUS radio channels. The Raymarine A50D GPS-Chartplotter-Fishfinder comes packaged with a tilt & swivel bracket, suncover, power-NMEA cable, transom mount transducer, and instruction manual. The A50D is also SeaTalkng capable allowing for engine monitoring with compatible engines. With SeaTalkng you can even activate and control your Raymarine X-Series SmartPilot directly from the A50D?s chartplotter.