Rohde & Schwarz CMU-K20, Operating Manual

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CMU-K20/-K21/-K22/-K23/-K24 Preparing a GSM Mobile Phone Test
1115.6088.12 2.1 E-10
2 Getting Started
The following chapter presents a sample GSM mobile test with the universal radio communication
tester CMU. It is intended to provide a quick overview of the function groups
GSM400/850/900/1800/1900-MS Non Signalling and GSM400/850/900/1800/1900-MS Signalling and
their functionality and to lead through some basic tests that are commonly performed on GSM mobile
phones.
Before starting any measurement with the CMU, please note the instructions given in chapter 1 of the
operating manual for the CMU basic unit for putting the instrument into operation. In chapters 2 to 4 of
that manual you will also find information on customizing the instrument and the display according to
your personal preferences. For installation instructions for the
GSM400/850/900/1800/1900 software
(CMU-K21/-K22/-K23) refer to chapter 1 of the present manual.
The tests reported below include
•
Connection of the phone and selection of the GSM function group,
•
Power and modulation measurements in Non Signalling mode,
•
Selection and measurement of signalling parameters,
•
BER tests.
The steps to perform are explained on the left side of each double-page together with the results ob-
tained on the CMU screen. On the right side, additional information is given. We also point out alterna-
tive settings and related measurements which could not be reported in detail.
The principles of manual operation are discussed in chapter 3. For a systematic explanation of all
menus, functions and parameters including GSM background information refer to the reference part in
chapter 4.
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