L750 Fishfinder: Installation and Operation Handbook
4
Chapter 2: Installation
The installation process has four parts:
• Mounting the transducer
• Mounting the display unit
• Connecting the cables for the transducer and power supply
• Calibrating the display unit
About the Transducer
Several different kinds of transducers can be used with this unit. The
“thru-hull” and “transom-mount” types are used most often. Other types
are shown in Fig. 2-1.
Fig. 2-1 Transducer Types
Most transducer types can measure the water depth. Some of the
transducers also have two other sensors: a paddle wheel which detects
the speed of the boat, and a sensor for the water temperature. The
display unit uses the speed information to calculate the distance the boat
has traveled.
The transducer is very important to the operation of the Fishfinder. It is
also important that you mount the transducer correctly. The transducer
Thru-hull
transducer
Fairing for
thru-hull transducer
Transom-mount
transducer
In-hull
transducer
Sidelooker
transducer
Low profile
transducer
