Table of Contents
Advertisement
Setting System
Parameters
There are several system parameters that you will
usually need to set only once. Set these parameters
using the Parallel Port and Mount commands on the
Setup menu.
Parallel Port Address
PC/180 must know the address of the parallel port on
your computer to which you will connect the Acous-
tic Interface Module. The default parallel port ad-
dress is 0x378. If you do not know what the parallel
port address 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 other two most common
parallel port addresses are 0x278 and 0x3BC.
Transducer Mount Corrections
The PC/180 software can compensate for minor
transducer misalignments. These are important cor-
rections, particularly if PC/180 is being used as a
collision avoidance aid.
Level Adjustment
PC/180 can compensate for up to 14 degrees of fore
or aft tilt in the mounting of the vertical (starboard)
Before Level Adjust
scanning transducer.
To set the Transducer Level parameter, run PC/180
when the boat is over a known level bottom. The
vertical display should also appear level. If, how-
ever, the bottom is slanted upward (as shown in the
"Before Level Adjust" picture at left), it means that
the transducer was mounted with its nose pointing
down slightly. If the bottom slopes upwards by 10
degrees, the Transducer Level correction should be
10 degrees DOWN. If the bottom slopes downward,
After Level Adjust
adjust the Transducer Level in the UP direction to
compensate.
22
Advertisement
Table of Contents
