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491 Echo Sounder Operations Manual Page 11
2Quick Start: Using the Echo Sounder
Displaying the echo sounder’s picture . . . . 2-12
Using demo mode . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Introducing the displayed information . . . . 2-15
Using automatic mode . . . . . . . . . . . . . . . . . . . . 2-16
Changing the frequency of echoes . . . . . . . . 2-17
Zooming in and out . . . . . . . . . . . . . . . . . . . . . . . 2-19
Setup functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
This chapter shows you how to start using the echo sounder,
and explains several of the echo sounder’s important features.