Furuno 1835 Operator's Manual page 24

1. DESCRIPTION OF OPERATION
1. Ho to A
The gain functions to adjust the sensitivity of the receiver for the best reception. The
gain can be adjusted automatically or manually.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Echo] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Gain Mode] and press the ENTER key.
4. Use the Cursorpad (S or T) to select [Auto] or [Manual] then press the ENTER
key. The window for Gain/Sea/Rain indicator shown below appears. This window
closes automatically in the [River] or [Sea] mode when there is no menu operation
for three seconds. [Auto] is for adjusting the gain automatically. For [Manual], go
to Man al mo e below.
5. Press the CANCEL HL OFF key to close the window.
6. Press the MENU key to close the menu.
Note When you want to adjust the gain finely in [Auto] mode, rotate the GAIN knob.
The confirmation message appears. If you select [Yes], the mode changes to [Manual]
mode. Rotate the GAIN knob to adjust the gain.
Man al mo e
1. Rotate the GAIN knob to adjust the gain so that weak noise appears on all of the
screen. If the gain is too low, weak echoes are erased. If the gain is too high, the
background noise hides weak targets.
2. Press the CANCEL HL OFF key to close the window.
1-1
t t e Gain
ain Mode o ion
AUTO: Auto, MAN: Manual
ain/ ea/ ain indi a or
Are you sure to change to manual mode?
on ir a ion e age
en itivity
Gain setting bar