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78 GPSMAP 2106/2110 Owner’s Manual
USING SONAR > SONAR TAB
Using the Pointer on the Sonar Page
You can display the pointer (arrow) to reference sonar items and mark underwater
waypoints. This makes it easier to find and use an object such as a stump as a
future fishing location.
When using this feature, the Sonar Page pauses. The depth continues to update
while the display is paused, but the unit does not show any new sonar data until
the Sonar Page resumes scrolling. Discontinuity is possible from where the sonar
information stops and where it starts again.
Marking an Underwater Waypoint
You can mark waypoints that are under the surface of the water.
To mark an underwater waypoint:
1. On the Sonar Page, use the ROCKER to move the pointer to the location
you want.
2. Press and release ENTER/MARK. The Review Waypoint Page appears
with the waypoint’s coordinates, default name, and pointer depth
automatically filled in.
3. To change the name, symbol, or depth, highlight the appropriate field, and
press ENTER. Make any changes, and press ENTER when finished.
4. Highlight OK, and press ENTER to return to the Sonar Page.
5. Press
QUIT to resume scrolling.
Sonar Tab
When a GSD 20, GSD 21, or GSD 22 is connected to the GPSMAP 2106/2110,
the Sonar tab appears on the Main Menu.
Use the Sonar tab to set up the Sonar Page. The Sonar tab has three sub tabs:
General, Graph, and Water Temp.
To access and change a setting on the Sonar tab:
1. Press the Sonar Setup soft key to open the Main Menu. The Sonar tab is
automatically selected.
2. Highlight the setting you want to change, and press ENTER.
3. Press QUIT to return to the Sonar Page.