Garmin echoMAP 74dv Fishfinder/Chartplotter Combo with Sonar Capability and BlueChart g2 Coastal Charts. 7-inch combo with great features for the money. The easy-to-install, easy-to-use echoMAP 74dv includes a 7" diagonal high-contrast color display with automatic backlight adjustment. It supports Minn Kota and MotorGuide trolling motors with integrated transducers. Internal 5Hz GPS/GLONASS updates position and heading five times per second. The combo's cords plug directly into the mount, allowing you to quickly install and remove your device from power and the mount.Transducer is sold separately. Key Features Clearest scanning sonar on the water:DownVü scanning sonar gives you a nearly photographic image of what passes below your boat. You clearly see structure, submerged objects and fish. Traditional Garmin HD-ID sonar and DownVü scanning sonar are combined into one transducer (Garmin GT21-TM Transducer,sold separately). Also provides HD-ID support for Minn Kota and MotorGuide trolling motors with integrated transducers.Sonar recording: EchoMAP 74dv also includes sonar-recording capability that coordinates the timing of the sonar return with your boat's position and saves digital information for playback on a computer using free HomePort planning software. Use the user data sharing cable to share waypoints and routes between multiple devices.Preloaded BlueChart g2 Maps:EchoMAP 74dv comes preloaded with BlueChart g2 maps covering the coastal U.S. and Bahamas (east coast, west coast, Gulf of Mexico, U.S. side of the Great Lakes). It also includes all charts for the U.S. coastline and the Bahamas as well as everything available on NOAA charts. In addition to the basic charts, tidal stations, currents, depth contours, IALA symbols and included fishing charts, BlueChart g2 offers smooth transitioning between zoom levels and more seamless continuity across chart boundaries. You can customize your screens with Safety Shading which allows you to contour shade for all depth contours shallower than what you determine is your safe depth. Fishing charts emphasize bathymetric contours with less visual clutter on the display. And there's also a choice of standard 2-D direct overhead or 3-D "over-the-bow" map views for easier chart reading and orientation.Heading and position refreshed five times per second:Fast, responsive 5Hz GPS/GLONASS refreshes your position and heading five
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