4
GPSMAP 400/500 Series Owner’s Manual
Using Sonar
Zoom
—zoom in to a section of the full screen. The zoom is off, or
set to
No Zoom
by default. Four options are available:
No Zoom
—turns zooming off.
2x Zoom
—twice the magnification.
4x Zoom
—four times the magnification.
bottom Lock
—locks the zoom window to the bottom.
Split Zoom
—displays the Split Zoom screen (
depth Line
—quickly reference a specific depth (
Show
or
Hide
). To
set the depth of the reference line, select
Show
, and then press up or
down on the
Rocker
.
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