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Section 3: Basic Sonar Operation
This section addresses the unit's most basic sonar operations. The in-
structions presented in Sec. 3 follow a chronological order. Sec. 4, Sonar
Options & Other Features, will discuss other more advanced functions
and utilities. Material in Sec. 4 is arranged in alphabetical order.
Before you turn on the sonar unit, it's a good idea to learn about the
different keys, the Main Menu, the four Page screens 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 37.
Keyboard
X105C DF sonar unit, front view, showing
full sonar chart screen display and keyboard.
1. PWR/LIGHT (Power & Light) – The PWR key turns the unit on and
off and activates the backlight.
2. PAGES – Pressing this and the ↑ and ↓ arrow keys switches the unit
between the five different page display options. (Full Sonar Chart, Split
Zoom Sonar Chart, Digital Data, FlashGraf and Flasher.)
5
4
2
8
7
9
6
3
1