Raytheon NSC 18 User Manual page 80

DOWNLINK
(DOWN LINK ERROR ALARM)
UPLINK ERROR
(UP LINK ERROR)
LOST TGT
(LOST TARGET ALARM)
CPA TCPA
(CLOSEST POINT OF APPROACH or
TIME OF CLOSEST POINT OF
APPROACH)
GUARD ZONE
(GUARD ZONE INTRUSION)
NO TRIGGER
NO POSITION
(POS OUT ALARM
3748DOC020102
Operator Manual
ALARM MESSAGE
)
a.) Problem Description
b.) Corrective Action
a. An error has occurred on the
transceiver to the display link
b. Refer to the maintenance section for
troubleshooting and repair
a. An error has occurred on the display
to the transceiver link
b. Refer to the maintenance section for
troubleshooting and repair
a.
b.
a. Track will pass inside CPA limit
b. Only Tracks sooner than TCPA limit
can be alarm
a. Tracks already acquired have moved
into a area under watch
b.
a. Radar probably not transmitted
b.
a.
b.
2−62
Edition: 14.JAN.2005