Garmin GPSMAP 4000 - Manual (Page 51)

GPSMAP 4000 Series Owner’s Manual 4
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magnified area.
4x Zoom—four times the magnification. Select
Up , Down , or Auto to set the depth range of the
magnified area.
Bottom Lock—locks the zoom window to the bottom. Select
Up , Down , or Auto to set the
depth range of the magnified area.
Depth Line—quickly reference a specific depth ( On or Off ). When On is selected, press up or
down on the ROCKER to set the depth of the reference line.
A-Scope—creates a vertical flasher along the right side of the screen ( On or Off ).
Sonar Setup—opens the Sonar Setup screen. See page 46 .
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