2201R Mobile Tester User Guide
Chapter 3 Performing manual tests and measurements in GSM mode
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14. When you are finished, push the Stop Test soft key.
The measurements stop, and the status indication returns to GPRS Attached.
Interpreting the results
GPRS Tests menu produces a statistical evaluation of the results of the BLER-USF for each time slot and in addition
over all the time slots measured. The BLER-USF is measured as a percentage.
The BLER-USF measurement is typically performed at an RF output power level of –104 dBm. The result must not
exceed 2% according to the GPRS specifications.
The results representation on the right-hand side includes a graphical Pass/Fail statement. This verdict depends on
the limits defined in the GSM/GPRS Limits menu. (The limit value for BLER-USF refers to the upper limit because the
lower limit is 0% by nature.)
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