Possible Setup Issues
This measurement is
not
applicable to GPRS. To run this measurement ensure the test set is configured for GSM measurements.
During remote operation of the Fast BER measurement you should configure the trigger arm to single, see
SETup:FBERror
.
If the trigger arm is not set to single, the measurement may not return 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
.
Set signalling loopback control to on; if signalling loopback control is off, set loopback to Type C, see
CALL:TCHannel:LOOPback
.
The test set may never correlate the uplink and downlink, see
SETup:FBERror:LDControl:AUTO
so that the measurement appears to hang. The mobile station may not have closed its loop after the loopback type was set. You must allow sufficient time for the mobile station to close its loop and set time out mechanisms see
SETup:FBERror:TIMeout[:STIMe]
.
