14

Figure 3-5 Radar interference

Four levels of interference are available, in-

cluding off; IR1, IR2, IR3 and OFF. IR3 pro-

vides the highest level of rejection.

1. Press the [MENU] key.

2. Select “OTHER MENU” and press the

[ACQ/ENTER] key.

[ OTHERS ]
Select item by omnipad
and press ENTER key.
¡. Panel Dimmer
2 . Mark Brill
3 . HD Mark
4 . Characters
5 . Trail Tone
6 . Int Reject
7 . Pulselength
8 . Noise Reject
9 . Trail Time
10. Tune
11. Disp Data
12. WPT Mark
13. EBL Ref
14. VRM Unit
15. Watchman
16. STBY Disp
17. Guard Mode
18. Own Position
19. Cursor Posi
20. Alm sense LV
21. Dead Sector
22. Range
23. Self Test
24. Installation Setup
3
3
3
3
2
1M
ARP
sm
10M
Nav
Hig
¢
¢
¢
¢
3
All
20M
‹6
1
1
1
1
Single
Off
Short
Off
15S
Auto
Off
Off
Rel
nm
Off
Norm
In
L/L
R/B
Low
Off
1/8
1/4
4 §
2
2
2
2
Multi
1
Long
On
30S
Manu
Nav
On
True
km
5M
Econo
Out
TD
L/L
Mid
On
1
1.5
16 ¤4
1/2
3/4
8 ⁄2
3M 6M 15M 30M Cont
2 £

Figure 3-6 OTHER MENU

Continuous trail

The maximum continuous trail time is 99 min-

utes and 59 seconds. When the elapsed time

clock counts up to that time the elapsed time

display is reset to zero and trail begins again.

Cancelling echo trail

Select “OFF (deactivate)” at “ECHO TRAIL”

on the menu.

Changing trail attributes

Trail gradation and trail time can be selected

on the OTHERS menu.

Table 3-1 Trailing attributes

Item in
OTHERS
menu Description
Trail
Tone
Trails can be shown in
single or multiple
gradations. Multiple paints
trails getting thinner with
time just like the afterglow
on an analog PPI radar.
Trail Time
Trail time can be set for 15
sec., 30 sec., 1 min., 3 min.,
6 min., 15 min., 30 min., or
continuous.
3.5 Suppressing RadarInterference

Radar interference may occur when near an-

other shipborne radar operating in the same

frequency band as your radar. Its on-screen

appearance is many bright dots either scat-

tered at random or in the form of dotted lines

extending from the center to the edge of the

display. Figure 3-5 illustrates interference in

the from of curved spokes. Interference ef-

fects are distinguishable form normal echoes

because they do not appear in the same place

on successive rotations of the antenna.

Single Multiple