4-43
Screens
Cell Control 2
25. RACHs This field indicates the number of RACHs received during the current call or since
the last Reset.
26. Relative MS
Timing Err
This field displays the length of time between when the Agilent 8922M/S expected
the uplink burst to arrive and the time it actually arrived.
Timing error measurements on the uplink burst are made from the center of bit 0,
and are relative to the default trigger delay value of 473.4 T (see Measurement Sync,
Trigger Delay).
The Agilent 8922M/S normally expects the uplink burst 468.75 bit periods after the
beginning of the downlink burst. The trigger delay’s default value of 473.4 T reflects
an additional Agilent 8922M/S delay of 4.65 T (468.75 + 4.65 = 473.4 T).
The accuracy of this measurement is ±0.25 T. For more accurate measurements,
refer to DSP Analyzer, Data Bits, First Bit.
See Also Screens: Phase/Freq: Data Bits (First Bit)
27. Reset (Call
Counts)
This field clears out the counts of pages, RACHs, synchronization, and decode
errors detected.
28. Reset (SACCH
Meas)
This field clears-out all of the SACCH measurements.
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