GPSMAP 192C Owner’s Manual 85U SING SONAR > SONAR PAGETo mark an underwater waypoint:1. From the Sonar page, press MENU, highlight ShowPointer, and press ENTER to pause the screen movement.2. Use the ROCKER to move the cursor onto the target, suchas underwater drop offs and stumps, you want to mark. Thedata window at the top of the screen displays the cursor’sdepth, coordinates, bearing and distance from your currentposition.3. Press ENTER/MARK. The New Waypoint page appearswith the waypoint’s coordinates, default three-digit name,and pointer depth automatically filled in.4. To change the name, symbol or depth, highlight theappropriate field, and press ENTER. Make your changesand press ENTER when finished.5. When finished, highlight OK, and press ENTER.6. To return to the standard Sonar page, press QUIT, or pressMENU, highlight Hide Pointer, and press ENTER.Show/Hide Numbers—toggles showing/hiding the data fields onthe sonar display.Show Numbers OptionChange Numbers—allows you to specify the type of datadisplayed in each data field. For detailed instructions on changingthe data fields, see pages 31.Size Split—enables width adjustment of the Sonar page splitscreen. This option is available only when a split screen zoom scaleis selected. Adjust the size of the split window anywhere from 1/4to 3/4 width of the right half of the Sonar page.