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Setting System
Parameters
There are several system parameters that you will usu-
ally need to set only once. Set these parameters using
the Parallel Port and Mount commands on the Setup
menu.
Parallel Port Address
PC/View must know the address of the parallel port on
your computer to which you will connect the Acoustic
Interface Module. The default parallel port address is
0x378. If you do not know what the parallel port ad-
dress is, do not change it. Your parallel port address
is most likely 0x378.
If you know that you are using a parallel port with an
address other than 0x378, select Parallel Port... from
the Setup menu and choose the correct address from
the pull-down menu. The common parallel port ad-
dresses are 0x278 and 0x3BC.
Transducer Mount Corrections
The PC/View software can compensate for minor
transducer misalignments. These are important correc-
tions, particularly if PC/View is being used as a colli-
sion avoidance aid. For example, if the vertical scan-
ning transducer is tilted forward, a level bottom will
appear to be getting shallower at greater distances. If
it is tilted back, a level bottom will appear to be get-
ting deeper.
Before Level Adjust
Level Adjustment
In case the vertical scanning transducer has been
mounted with a fore or aft tilt, PC/View can compen-
sate for up to 14 degrees of tilt in either direction.
To set the Transducer Level parameter, Run PC/View
when the boat is over a known level bottom. The verti-
cal display should also appear level. If, however, the
bottom display is slanted upward (as shown in the
"Before Level Adjust" picture at left), it means that the
After Level Adjust
transducer was mounted with its nose pointing down
slightly. If the bottom slopes upwards by 10 degrees,
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