Furuno 582L Color Fishfinder (DVD)

Fishfinder Operation Step-by-step Lessons Include:

-How sonar works

-Interpreting the signals

-Locating fish and structure

-Adjusting the sensitivity

-Using the zoom modes & setting the zoom range

-Frequencies and area of coverage

-Manually adjusting the depth range

-Setting fish and depth alarms

-Clearing unwanted signals and interference 

-Customizing the unit