1. OPERATIONAL OVERVIEW
1-71
1.39
Target Alarm
The target alarm serves to alert the navigator to targets (ships, landmasses, etc.) en-
tering a specific area, with audiovisual alerts.
The operator can set the alarm zones at
any location, with any size, however, the
zones must be inside the operational
display area.
Note:
The target alarm boxes are not
displayed when the setting for [AZ/ALR
SELECT] in the [TT•AIS] menu is set to
the default setting [AQUISITION
ZONE]. To enable this function, set [AZ/
ALR SELECT] in the [TT•AIS] menu to [TARGET ALARM ZONE].
1.39.1
How to set a target alarm
The procedure below shows how to set a target alarm using the figure below as an
example. The alarm boxes are labeled [1:] and [2:], and are located at the bottom-right
of the screen, near the VRM boxes.
1. Select the appropriate alarm box, then left-click. The cursor jumps into the opera-
tional display area and the indication "SET" appears inside the target alarm box
selected.
2. Using the trackball, move the cursor to Point A, then left-click.
3. Using the trackball, move the cursor to Point B, then left-click.
The indication “SET” is replaced with “WORK” in the box. The target alarm zone’s
lines are shown as dashed lines.
Note 1:
To create a 360° alarm zone, set Point B at the same location as Point A.
Note 2:
Two alarm zones can be set simultaneously. The second alarm zone is only
available when the first alarm zone is active, however.
Note 3:
When the target alarm zone is not within the range in use the indication "UP
RNG" appears to the right of the target alarm box. In this case select a range that will
display the target alarm zone.
CAUTION
CAUTION
The alarm should not be relied upon as the
sole means for detecting possible collision
situations.
A/C SEA, A/C RAIN and GAIN controls
should be properly adjusted to be sure the
alarm system does not overlook target
echoes.
Click the Alarm Zone
you want to set.
The indication
changes to “SET”.
TGT ALR
TT / AIS
1:
2:
TGT ALR
TT / AIS
1:SET
2:
X
X
X
X
000
010
020
030
040
050
060
070
080
090
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
A
B
Target
alarm
zone
Other alarm zone examples
Point A
Point A
Point B
Point B
Summary of Contents for FAR-2218
Page 132: ...1 OPERATIONAL OVERVIEW 1 110 This page is intentionally left blank ...
Page 176: ...3 TARGET TRACKING TT 3 36 This page is intentionally left blank ...
Page 202: ...4 AIS OPERATION 4 26 This page is intentionally left blank ...
Page 232: ...5 VIDEO PLOTTER OPERATION 5 30 This page is intentionally left blank ...
Page 294: ......