Range - Simrad ES70 - REFERENCE MANUAL REV A Reference Manual

Range

The function is available by clicking the
Range
Purpose
The function allows you to specify the vertical range of the water column covered
Range
by the echogram. The range is defined from a selected start range, and down to a value
beneath the current bottom depth. The value shown and selected is by default applied
only to the currently selected echogram.
Parameters
• : This selection allows the ES70 to automatically adjust the range according
Auto
to the detect depth.
• : This parameter controls the displayed depth range in the echogram view.
Range
The start depth for the vertical range shown on the display will always be the value
defined by the
Start Range
dialog. For more information, see Start Range on page 114 and Echogram
Echogram
on page 158.
Example: In a surface echogram, set the
make the echogram start from the sea surface (provided that the transducer offset has
been defined). Set
show the area from the sea surface and down to 20 meters "below" the bottom. The
bottom contour is easily detected when the depth changes.
Example: In a bottom echogram, set the
make the echogram start from 5 meters above the bottom. Set
plus 10 = 15 meters. The echogram will now show the area from 5 meters above the
depth, and down to 10 meters "below" the bottom. The bottom contour will appear
as a flat line.
• : Check this box to apply the new range setting to all current echograms
Apply to all
of the same type.
Example: If you have selected a bottom echogram when you changed the range
setting, the setting will also be applied to all the other bottom echograms. A similar
functionality applies to the other echogram types.
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Description
This setting applies to the currently selected echogram
(identified with a thick border). Several echogram types
are available, these are selected in the
depth parameter. The echogram type is selected in the
to the current depth plus 20 meters. The echogram will now
Range
button on the
Range
value to 0 meters. This will
Start Range
value to –5 meters. This will
Start Range
Range
Functions and dialogs
menu.
Main
dialog.
Echogram
to the 5 meters
113