24
INSIDE THE HULL MOUNTING,
PUCK TRANSDUCERS ONLY
Perform these particular inside the hull instructionsonly if you have a puck transducer.
Inside the hull mounting of the transducer generally produces good results in single
thickness fiberglass hulled boats. Humminbird® cannot guarantee depth performance
when transmitting and receiving through the hull of the boat, since some signal loss will
occur. The amount of loss depends on hull construction and thickness, and the
installation.
This type of installation requires the use of a
slow-cure two-part epoxy (included with your
transducer). Do not use silicone or any other soft
adhesive material to install the transducer, as this
material will reduce the sensitivity of the unit. Do
not use five-minute epoxy, as it has a tendency to
cure before all the air bubbles can be purged,
thus reducing signal strength.
1. Locating the Transducer Mounting Position
Decide where to install the transducer on the inside of the hull. Consider the following
to find the best 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.
• As a general rule, the faster the boat can travel, the further aft and closer to the
centerline of the hull the transducer has to be located in order to remain in contact
with the water at high speeds.
2. Trial Installation
You will not be able to adjust the mounting after an inside the hull transducer is
installed. It is best, therefore, to perform a trial installation first that 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 depthsounder, then power up the depthsounder.
When the depthsounder detects a functioning transducer, it will automatically
enter Normal operating mode.
Inside the Hull Installation
