Cdma Time Accuracy Transient Event; Cdma Clock Bias Transient Event; Cdma Tracking Success Alarm - Symmetricom TimeSource 2700 Manual

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CDMA Time Accuracy Transient Event

The Frequency Receiver Autonomous Integrity Monitor (FRAIM)

determined that all available pilots are unacceptable

Maintenance action required - None.

The clock bias transient event indicates the quality of the current

timing solution data. The transient event is reported if there are no

valid pilots to obtain a good timing solution, or if the current

timing accuracy estimate exceeds the maximum threshold.

Maintenance action required - None.

This alarm indicates that the CDMA receiver is not achieving an

acceptable level of successful tracking. The system calculates a

24 hour average success rate every hour. This alarm is reported if

the average daily success rate is less than 40 percent.

Maintenance action required - Check the antenna and antenna

cable connections. If OK, move the antenna to a new location, and

monitor for 24 hours to see if the success rate improves. If the

alarm persists, replace the antenna.

Note:

does not reacquire any pilots for 4 hours or more, reset the CDMA

receiver (using the Reset screen, click Reset CDMA, then OK). If the

condition persists, replace the shelf.

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TimeSource 2700

If the TimeSource 2700 suddenly stops tracking pilots, and

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