Furuno FAR-2107(-BB) - Manual (Page 68)

1. RADAR OPERATION
1-46
1.29 Wiper
The wiper feature automatically reduces the brilliance of weak signals (noise,
sea clutter, rain clutter, etc.) and unwanted signals such as radar interference to
clear the picture of unwanted echoes. Its effect depends on the wiper setting
used and whether each averaging is turned on or off, as described below.
Echo averaging and wiper states and wiper effect
Wiper setting 1 Wiper setting 2
Echo averaging OFF Condition A Condition A
Echo averaging ON (1/2/3) Condition A Condition B
Condition A: The brilliance of unwanted weak echoes, such as noise, sea
clutter and rain clutter, is reduced to clear up the picture. The difference between
wiper setting "1" and "2" is that brilliance is lowered more slowly in "2".
Condition B: Echo averaging is automatically activated when the wiper feature
is turned on, allowing you to instantly see how the picture is affected with echo
averaging turned off and turned on.
To activate the wiper feature, do the following:
1. Left-click the MENU box to open the menu.
2. Select 1 [ECHO] to open the ECHO menu.
[ECHO]
1 BACK
2 2
ND
ECHO REJ
OFF/ON
3 TUNE INITIALIZE
4 PM
OFF/ON
5 SART
OFF/ON
6 WIPER
OFF/1/2
7 ECHO AREA*
1
CIRCLE/WIDE/ALL
* 1 Not available on IMO or A type
8 [PICTURE SELECT]
9 STC RANGE
+00
ECHO menu
3. Select 6 WIPER.
4. Select OFF, 1 or 2 as appropriate.
5. Push the right button twice to close the menu.