I bought a 24 ft Bayliner Buccaneer in the fall. As I was rumaging through the lockers I found a brand new Humminbird Wide Paramount Fish finder
with the speed and temp sensor. This came complete with the orignal reciept and the instruction manual (a little musty). The manual says:
1. Find good location (Observe the outside of the boat hull to find the areas that are
mostly free from turbulent water. Avoid ribs, strakes, and other
protrusions as these create turbulence)
2.At the identified mounting location, lay the transducer body face down with the
pointed end towards the bow.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. The water purges any air from between the transducer and the hull and fills any voids in the coarse fiberglass surface. Power up unit and try it out
3. Permanently Mount the Transducer
a) Once the mounting location is determined, mark the position of the transducer.
b) Remove the water from inside the hull and thoroughly dry the mounting surface. If the surface is excessively rough, it may be
necessary to sand the area to provide a smooth mounting surface.
Ensure the mounting area is clear and dry.
c) Mix an ample quantity of two-part slow-cure epoxy
slowly and thoroughly. Avoid trapping air bubbles.
d) Coat the face of the transducer and the inside of the hull
e) Press the transducer into place with a slight twisting motion to
purge any trapped air from underneath, keeping the pointed end
of the transducer body pointed forward Note: Proper operation requires the pointed end of the transducer body to face towards the bow.
The above is for the wide parmount, but the manual for your model should be on www.humminbird.com . Goodluck