Furuno FAR-2338-NXT - [ECHO ADJUSTMENT] menu

3. ADJUSTMENTS
3-5
3.5 Other Settings
This section describes the menu items not previously described.
3.5.1 [ECHO ADJUSTMENT] menu
Open the main menu then select [RADAR INSTALLA-
TION]o [ECHO ADJUSTMENT] to open the [ECHO
ADJUSTMENT] menu.
[VIDEO ADJUST VALUE]
Adjust the video level manually to remove noise.
Set the value so that noise just disappears from the screen. The setting range is -32
to +32 (default: +32).
When using the number keys, the indication is first selected as a whole. At this time,
you can toggle between plus "+" or minus "-". Press the 8 key for "-", press the 2 key
for "+". If single digits are highlighted, toggle is not possible. In this case, press the
CANCEL/TRAILS key to re-highlight the whole indication.
[RING SUPPRESSION]
Remove “ring” noise which appears with the waveguide type radars. Adjust so the
rings disappear at the range of 0.125 m. The setting range is 0 to 255 (default: 1).
[VIDEO CONTRAST]
Select [ADVANCE] to clarify the echo image difference (default: [ADVANCE]).
Preset the radar as follows:
• Interference Rejector (IR): 2
• Gain: 80
• Echo Stretch (ES): OFF
• Echo Averaging (EAV): OFF
• Range: 24 NM
• Pulse Length: Long
7 VIDEO CONTRAST
LEGACY
/
ADVANCE
CONTRAST
LEVEL
CONTRAST
LEVEL
CONTRAST
LEVEL
CONTRAST
LEVEL
A
B C
[
VIDEO CONTRAST
]
set to
[
ADVANCE
]
at installation:
[
VIDEO CONTRAST
]
set to
[
LEGACY
]
at installation:
CONTRAST
C
B
A
CONTRAST
33
22
444
11
33
22
11
44