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1. OPERATION
1-21
1.19 Target Alarm
The target alarm looks for targets (ship, landmass, etc.) in the area you set. When a
target enters or exits the alarm area, audiovisual alarms are released.
1.19.1 How to set a target alarm zone
The following procedure shows you how to set a target alarm zone.
1. Press the TARGET ALARM key to activate ALARM 1 or ALARM 2. Press the
TARGET ALARM key to change the active ALARM between No. 1 and No. 2. The
indication of the currently active ALARM is in a rectangle at the upper-right corner
of the screen.
2. Use the CursorPad to move the cursor to the position A and press the ENTER
key.
3. Move the cursor to the position B and press the ENTER key. The rectangle that
shows alarm status indication at the upper-right corner of the screen disappears.
(See figure below)
Note 1: To set a 360-degree guard zone, set the position B in the same bearing as the
position A.
Note 2: When the target alarm zone is not within the range in use, the indica-
tion"ALM1(or 2)_RNG" replaces "ALM1(or 2)_IN(or OUT)" in the alarm status area.
(When the target alarm zone is within the range of full off-centering, the indication
does not change.) Select a range which displays the target alarm zone.
CAUTION
CAUTION
·
Do not depend on the alarm as the only
means to detect possible collision
situations.
·
Adjust the A/C SEA, A/C RAIN and GAIN
controls correctly so that the alarm
system does not miss the target echoes.
Cursor
+
Target alarm zone 1
(Length of dash
and interval for
alarm zone 2 are
longer than alarm
zone 1.)
A
B
Alarm status
ALM1_IN
ALM2_OUT