3. VERTICAL MODE
3-12
3.9.2
Interference rejector
This control is similar to the interference rejector on echo sounders and radars. It is
effective for rejecting random noise and sea surface reflections in rough sea condi-
tions. Set it so that noise is just eliminated. Do not use an unnecessarily high setting
since it may also reject small wanted echoes.
1. Press the
MENU/ESC
key to show the main menu.
2. Select [Picture Setting] then push the left-
click button.
3. Press the
H/V/S
key to select the [V] tab.
4. Select [Int Reject] then push the left-click
button.
5. Select
S
or
T
then push the left-click but-
ton to change the setting The setting
range is 0 to 3. The higher the setting, the
greater the degree of interference rejection.
6. Select [Quit] on the setting box to close the box.
7. Long-press the
MENU/ESC
key to close all menus.
3.9.3
Shift TX frequency
If the interference can not be suppressed by the interference rejector or change in TX
interval, shift the Tx frequency with the [Frequency] menu.
1. Press the
MENU/ESC
key to show the main menu.
2. Select [TX/RX Setting] then push the left-click button.
3. Press the
H/V/S
key to select the [V] tab.
4. Select [Freq Shift1] then push the left-click button.
5. Select
S
or
T
then push the left-click button to change the setting. The setting
range is -30 to 30.
6. Select [Quit] on the setting box then push the left-click button.
7. Long-press the
MENU/ESC
key to close all menus.
Note:
In some cases the frequency can not be changed because of operating band-
width. In this case the frequency setting is grayed.
3.9.4
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 be displayed in colors of blue to background color.
1. Press the
MENU/ESC
key to show the main menu.
2. Select [Display Setting] then push the left-click button.
Summary of Contents for FSV-35S
Page 1: ...COLOR SCANNING SONAR FSV 35S OPERATOR S MANUAL www furuno com Model ...
Page 12: ...SYSTEM CONFIGURATION x This page is intentionally left blank ...
Page 88: ...4 NUMERIC GRAPHIC DATA DISPLAY 4 4 This page is intentionally left blank ...
Page 118: ...7 RECORD RECALL OPERATION 7 8 This page is intentionally left blank ...
Page 138: ...APPENDIX 1 MENU TREE AP 6 This page is intentionally left blank ...