Raymarine instruction manual Introduction, About the FishFinder L470

1 – Introduction

About the FishFinder L470

The FishFinder L470 is a system that uses sound waves (“sonar”) to detect fish and show the bottom of a lake or sea. The system includes a transducer and a display unit, connected by a cable. The transducer sends high-frequency sound waves down into the water. These sounds strike fish, the bottom, or other objects in the water, and return as echoes. The FishFinder then interprets these echoes and presents a display.

The FishFinder L470 can handle many different jobs:

•detect the presence of fish below the boat

•trigger an alarm when fish are found

•measure the depth of the water

•set alarms for minimum and maximum depth

•show the shape of the bottom

•determine whether the seabed is hard or soft

•measure the speed of the boat and the distance traveled

•show the water temperature

We are sure you will find the FishFinder L470 to be one of the most useful devices on your boat.

	Raymarine
FishFinder L470
Display Unit
	L470
Optional Thru Hull
Transducer
Transducer mounted	Fig. 1-1
in quick release
transom bracket	Typical Installation
Introduction	1