Sonar Zoom View - Humminbird 363 Operation Manual

531448-1_A - 363_Man_Eng.qxd 11/9/2005
Inverse is a method where weak returns are shown
with dark pixels and strong returns with lighter pixels.
This has the benefit of ensuring that weak signals will
be clearly visible on the display.
Structure ID® represents weak returns as light pixels
and strong returns as dark pixels. This has the benefit
of ensuring that strong returns will be clearly visible
on the display.
WhiteLine® highlights the strongest sonar returns in
white, resulting in a distinctive outline. This has the
benefit of clearly defining the bottom on the display.
Bottom Black displays all pixels below the bottom
contour as black, regardless of signal strength. This
has the benefit of providing a high contrast between
the bottom and other sonar returns on the display.
Any targets such as fish, structure and thermoclines
will be shown using the Structure ID® method.
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Sonar Zoom View

Sonar Zoom View increases the displayed resolution to separate sonar returns that
are very close together, such as those caused by fish suspended close to the bottom
or within structure. In Zoom View, the display is split to show a narrow slice of the
full range view on the right and the zoomed view on the left. The full range view on
the right also contains the Zoom Preview Box that shows what part of the full range
view is shown in zoom view on the left; the Zoom Preview Box tracks the bottom in
the full range view.
As the depth changes, the zoomed view updates automatically to display a magnified
image of the bottom. The Zoom Preview Box shows where the zoomed view is in
relation to the full range view. The Zoom Level, or magnification, is displayed in the
lower left corner and can be changed to suit conditions (see Sonar X-Press
Level). Upper and Lower Zoom Depth Range numbers indicate the depth of the water
which is being viewed.
Digital depth is displayed in the upper left hand corner. The digital readouts in the Sonar
Zoom View cannot be customized; therefore, information such as water temperature
and voltage are unavailable in the Sonar Zoom View.
Sonar Zoom View
Depth
Zoomed
View
Zoom Level
Lower Depth Range,
Zoom View
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TM Menu: Zoom
Upper Depth
Range, Full
Range View
Upper Depth
Range, Zoom View
Full Range
View
Zoom
Preview Box
Lower Depth
Range, Full
Range View