Raymarine 465 - Manual (Page 16)

5 Installation
Transom-mount
transducer
Thru-hull
transducer
In-hull
transducer
Sidelooker
transducer
Fairing for
thru-hull transducer
Fig. 2-1
Transducer
Types
Selecting the Correct Type of Transducer
Before you begin the installation, double-check to be sure you have the
correct type of transducer. Each kind of transducer is designed for a
particular type of use. In this manual we will include detailed mounting
instructions for the transom-mount transducer. We will also include some
general information on the other types. For detailed information on these
other transducers, see the instructions which are packaged with the unit.
Use a transom-mount transducer if –
your boat has an outboard or inboard-outboard engine(s) only. This type
of transducer must be mounted ahead of or beside the propeller(s). Don’t
use this type of transducer on a boat with a straight-shaft inboard engine.
Use a thru-hull transducer if –
your boat has a straight-shaft inboard engine. This type of transducer is
installed in a hole drilled through the hull.
Use an in-hull transducer if –
you have a high-speed boat or if, for some reason, you cannot use a
transom-mount or thru-hull transducer. The hull may be no more than 1"
thick.