Garmin 550C Using the echo, Sonar Screen Settings, MENU, Auto, Done, Range, Depth, ENTER, Zoom Adjustments, Adjusting the Range of the Depth Scale

Using the echo

Sonar Screen Settings

The Full Screen page, the Split Zoom page, the Split Frequency page, and the Flasher page are a visual representation of the area beneath your boat. These sonar views can be customized as indicated in the following paragraphs.

Adjusting the Range of the Depth Scale

Before you can adjust the range of the depth scale, you must open the Full Screen page (page 4), the Split Zoom page (page 5), the Split Frequency page (page 5), or the Flasher page (page 8).

You can adjust the range of the depth scale that appears on the right side of the Full Screen page, the Split Zoom page, and the Split Frequency page, and the inside of the flasher. This setting determines how deep the sonar will search for targets.

1.Select MENU > Range.

2.Select an option:

•To allow the device to adjust the range automatically based on the depth, select Auto.

•To increase or decrease the range of the depth scale manually, select Manual, select or, then select ENTER.

When you set the range on one page, that setting is applied to the other pages.

Using the echo

Zoom Adjustments

You can adjust the zoom of the Full Screen page, the Split Zoom page, and the Split Frequency page manually, or you can allow the device to adjust the zoom automatically.

Adjust the zoom manually by selecting the span (amount of sonar data that will be displayed in the zoomed window) and selecting a fixed starting depth. For example, if you select a span of 15 meters and a starting depth of 5 meters, the device will display an area from 5 meters deep to 20 meters deep.

When you adjust the zoom automatically, the span is the area that will be displayed on the screen from the contour of the bottom of the water. For example, if you select a span of 10 meters, the device will display an area from the bottom of the water to 10 meters above the bottom.

Adjusting the Zoom Manually

Before you can adjust the zoom manually, you must open the Full Screen page (page 4), the Split Zoom page (page 5), or the Split Frequency page (page 5).

When you set the span of the zoom on one page, the other pages are not affected.

1.Select Menu > Zoom > Manual Zoom > Span.

2.Select the span you would like to show.

3.Select Depth.

4.Select or, to adjust the viewing window.

5.Select ENTER > Done.

echo 200, echo 300c, echo 500c, and echo 550c Owner’s Manual