User`s manual

MAIN MENU (con't)
Options Menu
Target Calculations:
Target Length to measure the distance between two targets. Position the
target cursor anywhere on the sonar image display and
press the right mouse button. A second target cursor is
displayed with a rubber-banded line drawn between the two
cursors. The distance between the two cursors is displayed
in meters (or feet). Press the right mouse button again to
remove the second cursor.
Target Height to measure the approximate height off the bottom of a
target (assuming a flat bottom). When selected, the cursor
will display ‘Target Height - Click on Target’. At this
point, position the target cursor on the target of interest and
press the left mouse button. A vertical rubber-banded line
is drawn from the cursor position to the beginning of the
transmit pulse with the message ‘Click on Bottom
Return’. Position the cursor so that the end of the rubber-
banded line is at the beginning of the bottom return (the
end of the water column) and press the left mouse button
again. The message ‘Click on Shadow Start’ is now
displayed. Position the cursor at the beginning of the
shadow that the target has cast and press the left mouse
button. The message ‘Shadow End – Height = ???M’ is
displayed. Move the cursor to the end of the shadow to
display the height measurement. Press the left mouse
button again to begin a new measurement.
to select the operating frequency (High or Low) for the
connected Dual Frequency SportScan. The high frequency
selection will produce a higher resolution picture, but
overall range will be limited to about 60 meters (200 feet)
per side. If a Single Frequency SportScan is connected, the
high frequency selection is not available.
Frequency
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