Furuno LS-6100 manual Choosing Picture Advance Speed, Adjusting the gain, Unit Basic Range

Table 1-1 Default ranges

Unit				Basic Range
	1	2	3	4	5	6	7	8
meters	5	10	20	40	80	150	200	300
feet	15	30	60	120	200	400	600	1000
fathoms	3	5	10	20	40	80	120	200
P/B	3	5	10	30	50	100	150	200

1.Press the [+] or [-] key of the [RANGE] key and the display should now look something like the one below.

2.Press the [+] or [-] key of the [RANGE] key again to choose a basic range.

1000ft

600ft

400ft

200ft

120ft

60ft

30ft

15ft

Basic ranges (default)

Shifting the range

The basic range may be shifted up or down in the manual mode as follows:

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

2.Choose SHIFT from page 1 of the menu.

3.Press ► to open the shift options window.

Adjusting the gain

The [GAIN] key adjusts the sensitivity of the receiver. Generally, use a higher gain setting for greater depths and a lower setting for shallower waters.

Gain too high Gain proper Gain too low

Examples of proper and improper gain

1.Press the [GAIN] key and the display shown below appears.

GAIN

Min Max

200k	2
50k
		3

Gain adjustment window

2.When using the dual frequency display, press ▲ or ▼ to choose frequency.

3.Press the [GAIN] key to set. (You may also use ◄ or ►.) Adjust so that a slight amount of noise remains on the screen.

4.Press the [MENU/ESC] key to close the gain adjustment window.

0ft

Shift window

4.Use ▲ or ▼ to choose amount of shift desired.

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

Note: The picture may not be displayed if the amount of shift is greater than actual depth.

1.8Choosing Picture Advance Speed

The picture advance speed determines how quickly the vertical scan lines run across the screen. When choosing a picture advance speed, keep in mind that a fast advance speed will expand the size of the fish school horizontally on the screen and a slow advance speed will contract it. Note that the picture is not refreshed when picture advancement is stopped. Therefore, use caution when steering the vessel under this condition.

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