Furuno COLOR VIDEO PLOTTER 1933C - Manual (Page 155)

4. VIDEO SOUNDER OPERATION
4-11
Press the [GAIN] key to show the gain window, and adjust the [ENTER] knob or
trackball. Current level is shown on the bar, and the setting range is 0-100(%).
Press the RETURN soft key to finish.
GAIN 200kHz
57 ▲
HIGH
LOW
▼
Gain window
Note 1:
On the dual-frequency display, the gain can be independently set for 50
kHz and 200 kHz. Use the FREQ 50/200 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.
4.4.4 Shifting the range
The basic range may be shifted up or down as desired by pressing the SHIFT
soft key followed by adjusting the [ENTER] knob. Press the RETURN soft key to
finish.
Shift
Shift concept