R&S
®
CMW 500 GSM Applications
GSM GUI Reference
Operating Manual 1202.3986.32 – 03 226
User Margin
Margin that the R&S CMW 500 adds to the "Expected Nominal Power" in order to
determine its reference power; see above. The "User Margin" is typically used to
account for the known variations of the RF input signal power, e.g. the variations due
to a specific channel configuration.
The appropriate values depend on the configuration of the UL GSM signal, e.g. on the
modulation scheme. It is small for GMSK-modulated bursts because GMSK is a
constant-envelope modulation scheme. For EDGE bursts, a user margin of approx. 5
dB is sufficient.
GPIB command: CONFigure:GSM:MEASurement<i>:RFSettings:UMARgin
8.2.1.3 GSM Multi Evaluation Configuration: Measurement Control
The "Measurement Control" parameters configure the scope of the measurement.
Multi evaluation configuration: scope
Assign Views
Selects the view types to be displayed in the overview dialog. The R&S CMW 500
does not evaluate the results for disabled views. Therefore, limiting the number of
assigned views (in particular by disabling the "ACP ... Time" views) can speed up the
measurement.
GPIB command:
CONFigure:GSM:MEASurement<i>:MEValuation:RESult:PVTime etc.
Repetition
Defines how often the measurement is repeated if it is not stopped explicitly; see
Statistical Settings.
A "Continuous" measurement is continued until it is explicitly terminated; the
results are periodically updated.
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