Furuno LS-6100 manual Measuring Depth, Scope Display

FastSlow

Picture and picture advancement speed

1.Press the [MENU/ESC] key to open the menu.

2.Choose PIC. ADVANCE from page 1 of the menu.

3.Press ► to show the options window.

	Stop	(
1/16
		Slow
1/8
1/4
1/2
	1/1
2/1
		Fast
4/1
		)

Picture advance options window

4.Use ▲ or ▼ to choose picture advance speed desired. The fractions in the options window denote the number of scan lines produced per transmission. For example, 1/8 means one scan line is produced every 8 transmissions. “Stop” freezes the display and it is convenient for observing an echo.

5.Press the [MENU/ESC] key to close the menu.

1.9 Measuring Depth

The VRM (Variable Range Marker) functions to measure the depth to fish schools, etc.

1.Press ▲ or▼ to place the VRM on the object which you wish to measure range.

2.Read the VRM depth just above the VRM.

50k 1/1

0

VRM

VRM depth 20

39.8

40

60

49.680

How to measure depth with the VRM

1.10 A-scope Display

This display shows echoes at each transmission with amplitudes and tone proportional to their intensities, on the right 1/4 of the screen. It is useful for estimating the kind of fish school and bottom composition.

Note: In the dual frequency display, the A-scope display is only available with the high frequency display.

Single frequency display

50k 1/1

0

	10	Weak
		reflection
		(fish or noise)
	20	Strong
		reflection
	30	(fish)
32.3	40	Strong
		reflection
	A-scope display	(bottom)

A-scope display

8