Specifications

Simrad PI32

857-164636 / Rev.A

How to zoom in on bottom echoes

The Bottom Expansion functions allows you to zoom in on the

echoes closest to the bottom.

When this function is active, the echo sounder presentation is

split in two. The upper part is the ordinary presentation, while

the lower part shows the echoes just above the bottom. The

bottom appears to be flat, but this may not be the case, as the

zoomed area is related to the bottom.

Activate Bottom Expansion

1 Make sure that your echo sounder presentation is active.

2 Press the MENU button to open the main menu.

3 Open the Echo menu.

4 Select Bottom expansion.

If your current window was not an echo sounder, you have now

closed it, and replaced it with an echo sounder with bottom

expansion. If you also have a second page with an echo sounder

enabled, you need to enable the expansion mode for the second

page separately.

Change the range in the expansion window

1 Press the ENT button to open the Presentation setup.

2 Locate the Expansion window setting, and change to a

new value.

3 Press the ENT button save the setting and return to the

echo sounder view.

De-activate BottomExpansion

1 Press the MENU button to open the main menu.

2 Open the Echo menu.

3 Select Echo display.