Operation Manual

6. RADAR
6-16
To properly use the echo average function, first suppress the sea clutter.
1. Select [Radar Filters] from the
RotoKey menu.
2. Select [Average].
To deactivate the echo average, deselect
[Average] at step 2.
6.17 Sweep Fade
The sweep fade feature automatically reduces the brilliance of weak signals (noise,
sea clutter, rain clutter, etc.) and unnecessary echoes like radar interference to clear
the picture. Use the sweep fade when unnecessary echoes cannot be reduced by oth-
er methods.
1. Select [Menu] on the menu icon bar to open the main menu.
2. Select [Radar].
3. Select the [ON] icon to activate the sweep fade, the [OFF] icon to deactivate the
sweep fade in [Sweep Fade].
4. Select [Close] to exit the menu.
6.18 How to Show, Hide or Cancel an Active Route
You can show or hide the active route from the radar display. To show the active route,
select [Active Rte] from the RotoKey menu. To hide the active route, deselect [Active
Rte].
To cancel route navigation, select the go to point, boat icon or any of the lines (no. 1
to 4 in the figure below) which appear when [Active Rte] turns on, then select [Stop
Nav.] from the pop-up menu.
a) Echo average OFF
b) Echo average ON
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
1
1
2
3
4
Go to point
Go to point
Your ship
Your ship’
s position
s position