![](/images/new-backgrounds/1135507/13550751x1.webp)
the magnified area up or down, press the CURSOR PAD to move the depth marker.
Leaving zoom mode You can return to the normal unzoomed display just by pressing and holding ZOOM for more than one second, or by
pressing ZOOM repeatedly until you have cycled through all the zoom modes.
Setup functions
Several setup functions are available to configure the echo sounder to your preferences.
CAUTION:
Be careful not to change any of the functions that are not described here unless you first read about them and understand their functions in the Northstar 491 Installation Manual.
Accessing the setup screen
To access the ECHO SOUNDER SETUP screen, press STAR several times until “Echo Sounder” is highlighted at the top of the screen.
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