10 sonar fishfinding: windows, 1 sonar history window - no split – NorthStar Navigation Multi-Function Unit M84 User Manual

Page 43

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Northstar M121/M84 Installation and Operation Manual

42

To show the Sonar window, press

DISPLAY

, then

select Sonar.

There are five kinds of sonar window. To use a
window, press

MENU

, select Sonar splits,

then select the type of window to use:

No split: Sonar history window at a single or
mixed frequency (see section 10-1).

Split zoom: Sonar history plus a zoomed
section (see section 10-2)

Full screen zoom: (see section 10-2)

Split bottom: Sonar history plus a bottom
trace in a zoomed section (see section 10-3)

Split 50/200: Sonar histories at 50 and 200 kHz
(see section 10-4)

10 Sonar fishfinding: Windows

10-1 Sonar history window - no split

A Optional data header (see section 2-7-3)

B Optional compass (see section 2-7-4)

C Depth

D Color bar

E Bottom

F Range

G Fish symbols with depth

H Depth line

The window scrolls from right (most recent
echoes) to left (oldest echoes).

Split A-Scope: Sonar history plus echo
strength (see section 10-5)

If the window is split, adjust the split ratio if
required:

1 Press

MENU

and select Sonar window split.

2 Press or to adjust the ratio.

3 Press

ENTER

.

A

D

F

C

B

E

H

G

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