User`s guide

11
Shoot-thru-hull installation
Transom installation is the most widely used method. However in
some situation you also could use Shoot-thru-hull transducer installation,
which
is more convenient and fast. However, considering of the
material of
boat and any possible trapped air bubbles in the material,
sonar signals will be slightly reduced when passing through the boat hull.
1. Preparation
The boat hull should be single layer construction, since the sonar
signal could not pass through air.
Note:
The areas being chosen to mount the transducer should be free
from turbulent water. Any ribsǃstrakes and other protrusions that
may create turbulence should be avoided.
With double-hulled boat, you could make the shoot-thru-hull installation
only when some flotation materials (such as plywood, balsa, wood or
foam) are removed from the chosen area. Please see figure-9.
Warning:
contact your boat dealers to get the full specifications of
your boat. And never try to remove any materials from the inner hull
before you completely know about the composition of your hull.
inner hull Resin
flotation material expoxy outer hull