Using the Pointer on the Sonar PageYou can show the pointer (arrow) to reference sonar items andmark underwater waypoints. This makes it easier to find and usean object such as a stump for a future fishing location. When usingthis feature, the Sonar Page pauses. The depth continues to updatewhile the display is paused, but the unit does not show any newsonar data until the Sonar Page resumes scrolling. You might see adiscontinuity from where the sonar information stops and where itstarts again.To mark an underwater waypoint:1. From the Sonar Page, press MENU, highlight Show Pointer,and press ENTER.2. Use the ROCKER to move the pointer to the location youwant to mark, and press ENTER. The New Map Waypointpage appears.3. To change the name, symbol or depth, highlight theappropriate field and press ENTER. Make your changes, andpress ENTER.4. When you are done making changes, highlight OK, andpress ENTER.5. To return to the standard Sonar Page, press QUIT; or pressMENU, highlight Hide Pointer, and press ENTER.Setting Up SonarUse the Sonar tab on the Main Menu to set up the Sonar Page.To access the Sonar Tab:1. Press MENU twice to open the Main Menu.2. Use the ROCKER to highlight the Sonar tab.Main Menu—Sonar TabFish Symbols—select how the Sonar Page shows underwatertargets and background information. Select Off to display all of theavailable information about the underwater environment. Select afish symbol to show only the information related to that symbol.Water Type—select the proper water type you are boating in.Because sound waves travel through fresh and salt water at differentrates, it is necessary to select the Water Type to ensure accuratereadings on the unit.GPSMAP 276C Owner’s Manual 93SETTING UP AND USING SONAR > SETTING UP SONAR
