Basic shows land areas, ports, obstructions and restricted areas. Navigation shows navaids, landmarks, ferryways and navigation routes in addition to the Basic information. Underwater shows depth contours, fishing areas, underwater wrecks, tides and currents in addition to the Basic and Navigation information. All shows roads, buildings, railways, and other notations in addition to the Basic, Navigation and Underwater information. To change the Chart Detail Level setting: 1. Highlight Chart De

Then press the MARK key to save the marked position as a waypoint. NOTE: When you save a waypoint by any of these methods, a numerical waypoint name is automatically assigned. You can edit the waypoint information later to give it a different name and select an icon to represent it (see Waypoint submenu on the Navigation Main Menu Tab) Display the Waypoints Submenu: From any view, press the MENU key twice to display the Main Menu System, then use the RIGHT Cursor key to select the Navigation t

Press the POWER/LIGHT key to turn the unit on. The Title screen is then displayed until the Chartplotter begins operation. See Powering Up the Unit for a more detailed explanation of the different modes you can select on power up. To adjust the backlight, or to adjust the display background color, press the POWER/LIGHT key to access the Light and Background menu. Use the 4-WAY Cursor key to select Light or Background and then use the LEFT or RIGHT Cursor key to change the settings. Press EXIT t

Three different fish size icons represent the intensity of the sonar return, and provide an indicator of relative fish size. DualBeam PLUSTM Sonar models represent targets detected in the 200 kHz narrow beam as Shaded Fish Symbols, and represent targets detected in the 83 kHz wide beam as Hollow Fish Symbols. 200 kHz, Narrow Beam 83 kHz, Wide Beam Shaded Fish Symbols Hollow Fish Symbols When Fish ID+TM is turned off, the 700 Series™ Fishing System shows only the raw sonar returns on the display.