Operating Adjustments; Range - Interphase Sonar Engine SE-200 Operation Manual

Operating Adjustments

Range/Depth Adjustment
To change the Depth or Forward Range, press the
button labeled RANGE to bring up the Range
Adjustment menu. You can use the up/down NAV
buttons to increase or decrease the range.
The Range adjustment menu in the Vertical and
Horizontal mode is different. In the Horizontal mode,
the forward range and depth can be adjusted
independently, however when in the Vertical mode, the
forward range and depth are related by a fixed ratio of
2:1 (the aspect ration of the display) or, if Depth
Expansion has been selected, a ratio of 4:1.
Therefore, in the vertical mode, changing the forward
range will also change the depth range.
If you are in the hozizontal split screen modes with the
DOWN looking depth showing on the left, you can
adjust the downlooking depth range (Down) and/or
the forward looking scanning range. To adjust the
downlooking depth range, press the left side of the
NAV button to select the DOWN depth adjustment (a
red box will indicate it is selected). To adjust the range
up or down, press the up or down arrow on the NAV
Button.
If the AUTO softkey is pressed, a red box will indicate
the feature is selected and the depth range will
automatically change to track the bottom. Note: when
the unit is in the vertical scan mode, the vertical range
will also change each time the depth range changes,
however when in the horizontal scan mode only the
depth range will change.
The Range menu in the vertical scanning modes also
includes an icon in the middle that resembles a
magnifying glass. Pressing the softkey for this icon
will change the aspect ratio of the screen from 1:2 to
1:4. Use this feature to expand the vertical scale (by a
factor of two) allowing longer forward ranges in
shallow water without the bottom depth being
compressed at the top of the display. A red box around
the icon indicates this feature is selected, pressing the
softkey for this icon again will return the display to the
normal 1:2 aspect ratio.
18
13.2 Ft
12.5
100
25
100
100
Selecting Auto Depth Ranging
18
13.2 Ft
12.5
25
Selecting Depth
Range Expansion
9
37
400
400
Use NAV
buttons
to change from Depth to
Forward Range
400
37
400