Raymarine L750 Operations Instructions download pdf (Page 41)

Chapter 3: Operating Instructions

16 -

Soft keys

Downlook Page

When you first turn on the display unit, the unit automatically switches to

the Downlook page. Figure 3-3 shows a typical display. (The Downlook

page is also called the “standard” or “chart” or “bottom graph” display.)

As time passes, this display scrolls from right to left. The scrolling image

becomes a record of the echoes and the bottom seen by the Fishfinder

as your boat moves.

The images at the right side of the display show the most recent echoes.

Some of these echoes indicate fish, and others show the bottom. As

new echoes are received, the Fishfinder “draws” a graph of the bottom.

The bottom graph helps you to tell whether the bottom is rising or falling.

It also allows you to identify the shape or “structure” of the bottom. This

can indicate a reef or shipwreck.

15 -

Range

Fig. 3-3 Downlook Page

Auto

features on

10 - Speed

11 -

Log/

distance

12 -

Water

temperature

4 - Auto zoom on

3 - Auto range on

2 - Auto gain on

17 -

Bottom

depth

5 -

Alarm indicators

6 -

Transducer

frequency

7 -

Boat

symbol

8 -

Water

surface

9 -

Depth

markers

13 -

Fish

arch

14 -

Bottom

indication

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Raymarine L750 Operations Instructions Page 41

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