Noise Limiter; Adjusting Beamwidth - Furuno FSV-24 Operator's Manual

2.9.5

Noise limiter

Weak, unwanted reflections, colored light-blue or green, appear when the water
is dirty, plankton layers exists, or due to ship's noise. The noise limiter can
reduce the effects of these unwanted reflections. Raising the setting causes
unwanted reflections to become colors of blue to background color. Normally a
setting of 3 or 4 is sufficient.
1. Press the [MENU] key to open the menu.
2. Select the H-SCAN SETTING menu and press the [MENU] key
3. Select NOISE LIMITER and press the [MENU] key.
4. Adjust setting from the dialog box as appropriate and press the [MENU] key.
The setting range is 0-10 and the default setting is 2. The higher the setting
the greater the degree of suppression.
5. Select QUIT and press the [MENU] key to conclude.
6. Select QUIT at the top of the menu screen and press the [MENU] key to
close all menus.
2.10

Adjusting Beamwidth

The horizontal beamwidth of the Rx beam can be adjusted at the OTHERS
menu as below.
1. Press the [MENU] key to open the menu.
2. Select H-SCAN SETTING and press the [MENU] key.
3. Select OTHERS and press the [MENU] key.
MENU
H-SCAN SETTING
OTHERS
COLOR : COLOR 1
COLOR SETTING...
COLOR RESPONSE : COLOR CURVE 3
COLOR RESPONSE...
GAIN OFFSET : 0
SIGNAL LEVEL : 0
FAR TVG CURVE : TVG2
TVG DISTANCE...
SMOOTH ECHO RNG : 0
SMOOTH ECHO CIR : 0
BEAMWIDTH : 0
Figure 2-15 OTHERS menu
2. HORIZONTAL MODE
QUIT
QUIT
QUIT
2-15