JRC JMA-2343, Instruction Manual

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3.3.8 Eradicating radar interference
Weak echo images from hazardous objects such as other vessels may also be
rejected when using the interference rejection function.
When observing radar beacons or SART signals, make sure that the interference
rejection function is disabled.
Radar interference refers to the phenomenon by which microwaves transmitted by a
third party radar is picked up directly by the ship's scanner unit and is displayed on the
PPI screen.
(a) Push the soft key
ＰＲＯＣＥＳＳ
ＰＲＯＣＥＳＳ ＰＲＯＣＥＳＳ
ＰＲＯＣＥＳＳ
.
(b) Push soft key 2 to select
ＩＲ ＩＲ ＩＲ ＩＲ １ １ １ １
.
(c) If radar interference cannot be rejected using
ＩＲ ＩＲ ＩＲ ＩＲ １ １ １ １
, push soft key 2 and
select
ＩＲ
ＩＲ ＩＲ
ＩＲ ２
２ ２
２
.
When not undertaking interference rejection, push soft key 2 and select
ＩＲ ＩＲ ＩＲ ＩＲ ＯＦＦ ＯＦＦ ＯＦＦ ＯＦＦ
.
(d) Push the
ＭＥＮＵ ＭＥＮＵ ＭＥＮＵ ＭＥＮＵ
key.
The soft key menu will return to the initial function display.
Interference rejection is enabled.
Prior to rejection of interference
After rejection of interference
Example of radar interference
Attention