Furuno 1733C, 1753C, 1742, 1752, 1723C, 1762C, 1732, 1722 Range shifting, Gain window, Shift concept

4. VIDEO SOUNDER OPERATION

Press the [GAIN] key to show the gain window, and rotate the [ENTER] knob to set the gain. Current level is shown on the bar. Press the RETURN key to finish. The setting range is 0-100.

GAIN HF

▲ 27

HIGH

LOW

▼

Gain window

Note 1: On the dual-frequency display, the gain can be independently set for LF and HF. Use the FREQ LF/HF soft key to select the frequency for which to adjust gain.

Note 2: Gain cannot be adjusted in the automatic sounder mode. The message “SOUNDER GAIN CANNOT BE CHANGED IN AUTO MODE” is displayed when you attempt to do so.

4.4.4Range shifting

The basic range can be thought of as providing a “window” into the water column and range shifting as moving the “window” to the desired depth. The basic range may be shifted up or down as desired by pressing the SHIFT soft key followed by adjusting the [+ RANGE -] key. Press the RETURN soft key to finish.

Shift

Shift concept

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