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ways reset when you exit the program. Soft defaults
are recommended settings for general operation.
If you are running PC/180 for the first time, it will
start with the default settings as shown at left.
Change the settings by selecting the appropriate com-
mand from the specified menu.
Demo Mode
PC/180 includes a built-in Demo mode which will
display the stored data that was installed with the
software. Demo mode will automatically be started
if the Acoustic Interface Module is not on or it is
disconnected from the computer during start-up.
Running in DEMO mode will allow you to practice
and to get a feeling for the PC/180's many features
before actually using the system in real situations on
the water.
Beam Width
The PC/180's Beam Width is approximately 12 de-
grees in both the vertical and horizontal scan modes.
The diagrams at right and below show the approxi-
mate width of the vertical and horizontal scanning
beams at different distances from the boat. The PC/
180 will generally image features within the shaded
areas.
The PC/180 horizontal scan is oriented approxi-
mately ten degrees down from horizontal (see the
diagram below). Thus, the depth to the center of the
beam is approximately 18 percent of the distance
from the boat.
Distance Forward
4.5
9
Depth
Width of Acoustic Beam
Horizontal Scan
12º Beam
Width
Distance
Forward
or Below
Boat
The width of the 12-degree main beam is
approximately 1/5 of the distance from the
boat
25
50
12º Beam
Width
18
19
210
1000
158
750
105
500
53
250
PC/View can
see targets
within this
area.
Width of Acoustic Beam
Vertical Scan
TIP
100
PC/View can
see targets
within this
area.
10 Degrees
7
29
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