1. OPERATION
1-29
1.22
Interference Rejecter
The radar interference can occur when your ship is
near the radar of another ship that operates on the
same frequency band with your radar. The interfer-
ence shows on the screen as many bright dots. The
dots can be random or in the shape of dotted lines
that run from the center to the edge of the display.
You can identify the interference from the normal
echoes, because the interference does not appear
in the same location on the next antenna rotation.
When this feature is turned on, "IR 1", "IR 2" or "IR
3" appears at the bottom right corner on the screen.
Click the IR (Interference Rejection) icon to switch the setting among [IR OFF], [IR 1],
[IR 2], [IR 3]. [IR 3] provides the highest degree of interference rejection.
Note:
When there is no interference, turn off the interference rejecter so that you do
not miss small targets.
1.23
Echo Stretch
The echo stretch feature enlarges the targets in the range and bearing directions to
make the targets easier to see. This feature is available on any range. There are three
levels of echo stretch, [1], [2] and [3]. [3] enlarges the targets the most.
Note:
The echo stretch magnifies the targets, sea and rain clutters, and radar interfer-
ence. Correctly adjust the sea clutter, rain clutter and radar interference before you ac-
tivate the echo stretch.
Click the [ES] (echo stretch) icon to switch the setting among [ES OFF], [ES 1], [ES 2]
and [ES 3].
“IR” (Interference rejection) icon
(at the bottom right corner on the screen)
INSTALL 1
FTC 1
IR 1
ES 2
EAV 3
TRAIL
2.50sec
00m03s
REL
ON
CUSTOM3-4
“ES” (Echo stretch) icon
(at the bottom right corner on the screen)
INSTALL 1
FTC 1
IR 1
ES 2
EAV 3
TRAIL
2.50sec
00m03s
REL
ON
CUSTOM3-4
