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3. TARGET TRACKING (TT)
3-21
3.16 TT Alerts
There are nine situations that cause the TT to trigger visual and audio alerts. To ac-
knowledge the audio alerts, push the ALARM ACK key, or click the [Alert] box.
Alert
No.
Message Category Description
520 TT System Error Warning TT system is inoperative. Check-
ing heading sensor, antenna.
521 TT New Target Warning Tracked target entered the ac-
quisition zone.
522 TT Auto ACQ 95% Caution The capacity for auto acquisition
has reached 95%.
523 TT Auto ACQ 100% Warning The capacity for auto acquisition
has reached 100% and no more
target acquisition is possible.
Cancel tracking on unnecessary
targets.
524 TT Man ACQ 95% Caution The capacity for manual acquisi-
tion has reached 95%.
525 TT Man ACQ 100% Warning The capacity for manual acquisi-
tion has reached 100% and no
more target acquisition is possi-
ble. Cancel tracking on unneces-
sary targets.
526 TT CPA/TCPA Alarm Tracked target on collision
course. Take evasive action.
527 TT Lost Warning Tracked target lost. Check tar-
get.
528 REF Target Lost Warning Tracked target used for speed in-
put is lost. To continue using ref-
erence target for speed input,
select another tracked target.