Fber Troubleshooting; Possible Setup Issues; Interpreting Integrity Indicator Values - Agilent Technologies 8960 10 Series Reference Manual

FBER Troubleshooting

FBER Troubleshooting
July 8, 1999

Possible Setup Issues

During remote operation of the Fast BER measurement the user should configure the trigger arm to single,
see "SETup:FBERror" on page 391.
Failure to set trigger arm to single may result in the measurement never giving a result. When trigger arm is
continuous the measurement rearms itself and starts another measurement cycle, during remote operation
the fetch query may not be synchronized to the measurement cycle, see "Measurement States" on page 150.
Set signalling loopback control to on; if signalling loopback control is off, set loopback to Type C, see
"CALL:TCHannel:LOOPback" on page 291.
The test set may never correlate the uplink and downlink, see "SETup:FBERror:LDControl:AUTO" on page
394 so that the measurement appears to hang. The MS may not have closed its loop after the loopback type
was set, the user needs to allow sufficient time for the MS to close its loop and set time out mechanisms see
"SETup:FBERror:TIMeout[:STIMe]" on page 396.

Interpreting Integrity Indicator values

See "Integrity Indicator" on page 125.
Questionable Result for PGSM (15) Fast BER measurement appears to work but it is only possible on a Phase
2 GSM system.
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