Eagle Electronics SeaFinder 480DF - Manual (Page 37)

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Section 3: Basic Sonar Operation
This section addresses the unit's most basic sonar operations. The
instructions presented here in Sec. 3 follow a chronological order. Sec.
4, Sonar Options & Other Features, will discuss options and other more
advanced functions and utilities. The material in Sec. 4 is arranged in
alphabetical order.
Before you turn on the unit, it's a good idea to learn about the different
keys, the Main Menu, the Sonar Menu, the four Page options and how
they all work together. BUT, if you just can't wait to get on the water,
turn to the one-page
Quick Reference on page 39.
Keyboard
Sonar unit, front view, with keyboard. SeaFinder 480DF shown.
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