Reverberation; Echo Average; How To Suppress The Bottom Echo - Furuno FSV-35 Operator's Manual

3. VERTICAL MODE
3.9.5

Reverberation

You may select the length of reverberation for the echo signal, with [Reverberation] in
the [TX/RX Setting] menu on the [V] tab. The larger the setting, the lower the rever-
beration effect, which makes it easier to see the echo signal. The setting range is 0 to
5.
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 af-
terglow remains on the screen longer as the setting is increased.
3.9.7

How to suppress the bottom echo

[Bottom Suppress] on the [TX/RX Setting] menu in the [V] tab suppress the stable ech-
oes such as bottom echo, plankton echo. Moving echoes such as fish school are not
effected by this setting. The setting range is 0 to 10. The higher the setting, the lower
the stable echo.
Note: Do not over suppress the bottom echo; a slow moving school of fish may also
be suppressed.
3-14