R&S
®
CMW 500 GSM Applications
GSM TX Measurements
Operating Manual 1202.3986.32 – 03 202
8 GSM Applications
The GSM firmware applications provide TX tests on GSM uplink signals. Most of the
tests and conformance requirements are specified in the following standard:
3GPP TS 51.010-1, Digital cellular telecommunications system (Phase 2+); Mobile
Station (MS) conformance specification.
The R&S CMW 500 provides the following GSM firmware applications:
GSM Multi-Evaluation Measurement
8.1 GSM TX Measurements
GSM TX measurements determine the power, modulation accuracy, and spectrum of
an uplink (UL) GSM signal. All TX measurements are combined in a single
measurement:
Multi-evaluation
8.1.1 GSM Multi Evaluation Measurement
The GSM "Multi Evaluation" measurement captures an uplink (UL) GSM signal and
provides the TX measurement results over a series of consecutive slots.
The following sections describe how to perform and configure the measurement.
8.1.1.1 Test Setup
The external RF signal source (mobile phone transmitter, signal generator etc.) is
connected to one of the RF input connectors RF 1 COM or RF 2 COM at the front
panel of the R&S CMW 500. The input level ranges of the connectors are identical; see
RF Connectors. No additional cabling and no external trigger is needed.
8.1.1.2 How to Measure a UL GSM Signal
After connecting your GSM mobile phone to the R&S CMW 500 as shown above, you
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