Furuno GP-1650WF, GP-1650WDF manual Selecting display range, Adjusting the gain, Range shifting

2. VIDEO SOUNDER OPERATION

Selecting display range

Press the RANGE soft key to show the range window, and select range by the cursor. Press the RETURN soft key to finish.

RANGE

▲

15 ft

30 ft

60 ft

120 ft

200 ft

400 ft

1000 ft

2500 ft

▼

Range window

Adjusting the gain

Press the GAIN soft key to show the gain window, and press ▲ or ▼ to set the gain. Current level is shown above the bar. Press the RETURN soft key to finish.

GAIN

▲57

HIGH

LOW

▼

Gain window

Note: On the dual-frequency display, the gain can be independently set for 50 kHz and 200 kHz. This can be done with the GAIN 50 kHz and GAIN 200 kHz soft keys.

Normally, set the gain to the point where excessive noise does not appear on screen. Use a higher gain setting for greater depths and a lower setting for shallow waters.

Gain too high Gain proper Gain too low

Examples of proper and improper gain

Range shifting

The basic range may be shifted up or down as desired.

Press the SHIFT soft key, and press ▲ or ▼ to shift the basic range. Press the RETURN soft key to finish.

Shift

Display

Shift concept

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