Furuno 1724C - Manual (Page 130)

4-1
4. VIDEO SOUNDER OPERATION
With connection of the optional Network Sounder ETR-6/10N/30N you can show video
sounder images on the display.
4.1 Sounder Displays
4.1.1 Selecting a sounder display
There are seven display modes from which to choose: dual frequency, single frequency,
marker zoom, bottom zoom, bottom lock, bottom discrimination, and A-scope.
To select a display;
1. Press the DISP key and then select sounder display desired.
2. If not already displayed, press the HIDE/SHOW key to show the sounder soft keys.
3. Press the DISPLY MODE soft key to show the display mode window.
DISPLAY MODE
¤ DUAL FREQ
¡ SINGLE FREQ
¡ MARKER ZOOM
¡ BOTTOM ZOOM
¡ BOTTOM LOCK
¡ BOTTOM DSCRM
HF: 200.0 kHz
LF: 50.0 kHz
Display mode window
4. Use the Cursor pad or the ENTER knob to select a display.
5. Press the RETURN soft key to close the window.
Note:
On menus which show the RETURN soft key you may use it or the ENTER knob to
register setting and close the window.