1. RADAR OPERATION
1-90
[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
1.47 Wiper
The wiper feature automatically changes the brilliance of weak signals to
facilitate picture observation, and its affect depends on the wiper setting used
and whether each averaging is turned on or off.
Condition 1: Wiper setting “1” or “2”, Echo averaging OFF
The brilliance of weak signals such as noise, sea clutter and rain clutter is
reduced to clear the picture of those unwanted echoes. The wiper setting “2”
provides greater suppression of brilliance of weak echoes than does setting “1”.
Condition 2: Wiper setting “2”, Echo averaging ON (EAV1/2/3)
With the wiper setting “2” and echo averaging on, you can observe the picture
before and after echo averaging. For example, after observing the movement of
a high-speed craft on the display, you can view the picture in which only the
brilliance of sea clutter is suppressed, after echo averaging.
To activate the wiper feature, do the following:
1. Roll the trackball to choose the MENU box and then push the left button.
2. Roll the wheel to choose 1 ECHO and then push the wheel or the left button.
ECHO menu
3. Roll the wheel to choose 6 WIPER and then push the wheel or the left button.
4. Roll the wheel to choose OFF, 1 or 2 as appropriate and then push the wheel
or the left button.
5. Push the right button twice to close the menu.