SETUP MARK ROUTE TRACK The menu bar, displayed at the top of the screen, allows selectingfrom the following options: Menu MENU : To delete, store and recall markers. : To activate/deactivate the plotter’s setup. : To activate/deactivate the track function and to save,recall and delete the track saved. : To delete, reverse, store, recall a route and displayroute information. 38 until the depth sounder window appears.The window will display the fol-lowing data: ?Water depth ?Depth scale ?Water temperature (if available)When navigating in waters deeper than sounder access range or ifthe boat’s speed is too high for depth sounding, data acquisitionwill be interrupted and the number replaced by “—”.To deactivate the depth sounder window, press A depth sensor can be interfaced with the GEONAV via NMEA.In this case, the GEONAV auto-matically enables the depth sounder function, displaying a graph of sea depth.The depth scale, whose unit canbe selected from the menu in meters, feet or fathoms, will change automatically to show deeper or shallower water.In Navigation mode, press Depth Sounder Window DEPTH SOUNDER WINDOW PAGE PAGE . EnglishEnglish 39