3
INSTALLATION PREPARATION
INSTALLATION OVERVIEW
The transducer converts electrical energy from the transmitter into mechanical
pulses or sound waves. The transducer also receives the reflected sound waves
and converts them back into electrical signals for display on the control head. It
should be installed in contact with the surface of the water in an area that has
smooth water flow - usually on the transom of the boat. There are several
mounting options for the transducer. Review
the following section to determine the
method that works for you and your boat.
Determining How to Mount the
Transducer
The
425SX
includes a model XT-6-24
transducer. This transducer can be mounted
on the transom of the boat, or bonded to
the inside of a fiberglass hull boat.
The transom installation, which is the most
widely used, places the transducer on the
outside of the boat hull. This technique
produces the least signal loss, and provides a
way to adjust the transducer after
installation. The mounting hardware
included is designed to protect both
the boat and the transducer should the
boat strike debris in the water or when
trailering.
As an alternative to transom mounting,
it is possible on many fiberglass-hulled
boats to glue the transducer on the
inside of the boat hull. Since fiberglass
has similar sonar characteristics as
water, the sonar signal can pass
through the boat hull with minimal
loss. The hull of the boat must be single
layer construction (not double-hulled).
Also, any air trapped in the lamination
of the fiberglass would prevent the sonar
Transom Mounted Transducer
Inside the Hull Mounted Transducer
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