Humminbird 180 Fish Finder User Manual


 
Trial Installation
Youwill not be able to adjust the mounting afteran inside the hull transducer
is installed. It isbest, therefore, to perform atrial installationfirstthat includes
running the boat at various speeds, in order to determine the best mounting
area before permanently mounting the transducer.
1. Plug the transducer into the control head, then power up the control
head. When the control head detects a functioning transducer, it will
automatically enter Normal operating mode.
2. View the sonar signal at its best by holding the transducer over the
side, immersed in the water, so that it is pointing straight down over a
known flat bottom. Use the display to benchmark against the sonar
signal that will be detected once the transducer is placed in the hull.
3. Placethe transducer body facedown at the identified mountinglocation
inside the hull, with the pointed end towards the bow (Figure 28).
4. Fill the hull with enough water to submerge the transducer body. Use
a sand-filled bag or other heavy object to hold the transducer in
position. The transducer cannot transmit through air, and the water
purges any air from between the transducer and the hull, and fills any
voids in the coarse fiberglass surface.
5. View the sonar signal on the display and compare against what was
observed in Step 2, making sure that the boat is in the same location
as it was during your observations in Step 2. If the results are
comparable, move on to Step 6. Otherwise, locate a new position in
the hull and repeat Steps 3 through 5.
6. Run the boat at various speeds and water depths while observing the
screen on the control head. If depth performance is required, test the
transducer in water at the desired depth. If the performance is
acceptable, move on to Step 7. If the performance is not acceptable,
repeat Steps 3 through 6.
7. Once you have determined the best mounting location using the above
steps, mark the position of the transducer.
22
Inside the Hull Transducer Installation