Displays; Vertical; Horizontal - Interphase Color Twinscope Operation Manual

Displays

The Color Twinscope has four basic display modes which can
be accessed directly by pressing one of the four buttons with the
display's name. The following paragraphs give a brief
description of each of these display modes. More detailed
information on how to interpret and make adjustments in these
displays can be found in pages 29 to 33 Interpreting your
Color Twinscope's Display.
Vertical Scan
Press the button labeled "VERT" to view a full screen forward
looking vertical scan display. In this mode, the Color
Twinscope scans a 90 degree sector from the surface ahead to
the bottom directly below. The resulting display shows the
bottom and objects directly in front of the vessel.
The display should look similar to the unit shown at right. The
boat icon at the top left of the display represents the position of
the vessel. The horizontal line with the scale across the top of
the display represents the surface of the water and the vertical
scale represents the depth below the vessel. The current depth
directly below the boat is shown at the top left of the display -
just in front of the boat icon.
The current forward range is shown by the digital number at the
far top right of the display. This number will change as
different ranges are selected. Adjust RANGE/GAIN (see page
26) to optimize the picture.
Horizontal Scan
Press the button labeled "HORIZ" to view a full screen forward
looking horizontal scan display.
The display should look similar to the unit shown at right. The
boat icon at the bottom center of the display represents the
position of the vessel. The range rings indicate the forward
distance from the vessel. The current depth directly below the
boat is shown at the top left of the display .
The current forward ranges is shown by the digital number at
the far top right of the display. This number will change as
different ranges are selected. Adjust RANGE/GAIN (see page
26) to optimize the picture.
The Depth Bar on the left side provides a visual indication of
the depth directly beneath the boat. Adjust in DOWN Mode.
Current Depth
Below Boat
Depth 13.2 Ft
Depth Scale
12.5
25
FORWARD LOOKING SONAR
Depth Bar
Current Depth
Below Boat
Depth 14.7 Ft
100
12.5
50
25.0
FORWARD LOOKING SONAR
23
Forward Range
CURSR
25 50
VERT
HORIZ
DOWN DATA
GAIN
RANGE
Forward Range
CURSR
Fwd. Range: 100 Ft.
VERT
HORIZ
DOWN DATA
RANGE GAIN
Targets (Echos)
PWR
PWR