Users Manual Part 5

3. TARGET TRACKING (TT)
3-30
3.16 TT System Messages
There are four main reasons the TT may trigger the audio and visual alerts:
You can acknowledge visual alerts and silence the audio alerts with one of the follow-
ing methods:
• Press the ALARM ACK (RCU-014) or ALERT ACK (RCU-031) key
• Click the [ALERT] box, at the bottom-right of the screen.
• Click the alert in the [ALERT LIST].
• Collision alarm
• Acquisition zone alert
• Lost target alert
•
Target capacity
Alert message Priority Meaning Action required
TT DANGER OF
COLLISION
Alarm A tracked target is on collision
course with your vessel.
Take evasive action or termi-
nate tracking of TT.
TT NEW
TARGET
Warning Tracked target has entered an ac-
quisition zone. The tracked tar-
get's symbol is red and flashing.
Confirm the tracked target, then
press the ALARM ACK
(RCU-
014) or
ALERT ACK (RCU-
031)
key.
TT TARGET
LOST
Warning When the system detects a loss of
a tracked target, the lost tracked
target symbol appears in red and
flashes. At the same time, an au-
dio alert is produced for one sec-
ond. The lost target mark
disappears from the screen after
the lost target alert is acknowl-
edged.
Confirm the lost target, reac-
quire if necessary.
REF TARGET
LOST
Warning When the system detects a loss of
a reference target, the target sym-
bol turns red and flashes. At the
same time, an audio alert is pro-
duced for one second. The refer-
ence target mark disappears from
the screen after the reference tar-
get alarm is acknowledged.
To continue using a referenced
target for speed input, select an-
other tracked target.
TT TARGET
FULL (AUTO) or
(MAN)
Warning Appears when capacity for auto-
matically (manually) acquired tar-
gets is full.
To continue acquiring targets,
cancel tracking for unnecessary
targets.
TT TARGET 95%
(AUTO) or (MAN)
Caution Appears when capacity for auto-
matically (manually) tracked tar-
gets is 95% full.