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Using the sonar page – Garmin GPSMAP 296 User Manual

Page 129

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Using the Sonar Page

When combined with a GSD 20 Sounder Module, your GPSMAP

296 becomes a powerful fishfinder/flasher with the Sonar Page. If

a GSD 20 is attached, but the unit does not detect a transducer, a

“Sonar Turned Off” message appears across the Sonar Page. If a

GSD 20 is not attached, the Sonar Page only appears when the unit

is in Simulator Mode.
The middle of the page contains a right-to-left moving sonar image

of the water beneath your boat. Items appear as they pass under your

transducer. Those items on the right side of the screen are closer

to you than those on the left. Along the right side of the screen is

an adjustable scale that reflects the depth of the area being shown.

The top left corner shows the Adjustment Option, the depth, and the

water temperature.

Sonar Page

The sonar returns show as red (strongest), then orange (strong),

yellow (medium), green (weaker), and blue (weakest). The Fish

Symbols option allows you to view the actual sonar data, a fish

symbol or a combination of both. When the unit is set to

Dual, the

appearance of the fish symbols changes. Fish symbols from the

center of the beam (200 kHz) are solid (or narrow arches), but the

returns from the edges of the beam (50 kHz) are hollow (or wide

arches).
The Sonar Page can also be set to show a split screen view of a

zoomed portion of the sonar, bottom lock (screen scaled from the

bottom up), or a combination of these options. For example, you

can choose to show dual frequency at a 2X zoom (Dual 2X) on one

half and normal range dual frequency (Dual) on the other half. The

current display mode is shown at the bottom of each sonar screen.

GPSMAP 296 Pilot’s Guide

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