Reverberation; Echo Average; How To Adjust Beam Width - Furuno FSV-25 Operator's Manual

3. VERTICAL MODE
4. Click [Noise Limiter].
5. Click
higher the setting, the greater the degree of the suppression.
6. Click [Quit] on the setting box to close the box.
7. Long-push the MENU/ESC key to close all menus.
3.9.5

Reverberation

You can reduce the strength of reverberation from sea-surface, sea-bottom and plank-
ton layer, with [Reverberation] on the [TX/RX Setting] ([V] tab). The setting range is 0
to 3. The reverberation setting is automatically set to "0" when the range is 100 m or
less. The larger the setting, the greater the reduction in reverberation. Select a value
that reduces reverberation while showing echo signals clearly.
3.9.6

Echo average

[Echo Average] on the [Picture Setting] menu in the [V] tab adjusts echo afterglow -
the amount of time an echo signal remains on the screen. This feature can be useful
for watching echo movement. The setting range is 0 to 11.
Setting between 1 and 7: Echoes are gradually displayed and afterglow remains on
the screen longer as the setting is increased.
Setting between 8 and 11: Echoes are quickly displayed and afterglow remains on
the screen longer as the setting is increased.
3.10

How to Adjust Beam Width

The width of the horizontal and vertical beam can be adjusted from the [TX/RX Setting]
menu.
1. Press the MENU/ESC key to show the main menu.
2. Click [TX/RX Setting].
3. Press the H/V/S key to select the [V] tab, then click [Beam Width].
4. Click [Hor. Beam Wid] or [Ver. Beam Wid] as appropriate.
5. Click
width.
6. Click [Quit] on the setting box to close the box.
7. Long-push the MENU/ESC key to close all menus.
3-12
or to change the setting (setting range: 0 to 10).The
TX/RX Setting
H1 P1
TX Interval
TX Pulse Length
TX Power
Reverberation
Freq Shift
Hor. Beam Wid
Ver. Beam Wid
or to set the beamwidth. The higher the setting the sharper the beam-
Quit
H2 P1 V P1
: 9
: 9
: 9
: 0
: 0
: 4
: 4
Quit
Cancel
0
(0~10)