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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 Radar
Interference
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