echo MAP dv series come with built-in 500 W (RMS) traditional HD-ID sonar and DownVü scanning sonar capabilities. 5 Hz Internal GPS updates position and heading 5 times per second to make marking and returning accurately to waypoints easier 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. quick-release mount – Cables plug directly into the mount allowing for […]