Garmin FishFinder 340C Owner's Manual page 19

I F 340C > M T
NSTALLING THE ISHFINDER OUNTING THE RANSDUCER
Shoot-Thru-Hull Installation
Drill pilot holes here.
To avoid drilling a hole to mount a thru-hull transducer, a
Level
transducer can be secured with epoxy inside a boat (shoot-thru-
hull installation). This type of installation can provide better
Align with the transom
noise reduction and allow you to use a higher Gain setting. For
bottom. The transducer
a transducer to be mounted inside the hull (shoot-thru, not thru-
should extend 1/8"
below fiberglass hulls
hull), the boat must be fiberglass, with no core. Contact your boat
or 3/8" below aluminum
manufacturer if you are unsure. Professional installation might be
hulls.
necessary. Be sure to always wear a dust mask and safety goggles.
Some transducers are specifically designed to be mounted inside a
Keep it parallel with the water line.
fiberglass hull. The standard plastic transom mount transducer can
also be mounted using this method. If using a temperature sensing
OK
transducer, the temperature displayed reflects the hull temperature.
Fishfinder 340C Owner's Manual 13