Rohde & Schwarz CMU-K20, Руководство по эксплуатации

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CMU-K20/-K21/-K22/-K23/-K24 Menu Structure
1115.6088.12 3.3 E-10
Connection
Control The Connect. Control softkey is located on the right side of the title bar of each
main and graphical measurement menu. It opens a popup menu with several
tabs controlling
•
The signal generators and analyzers of the instrument (Analyzer and Gen-
erator in Non Signalling, MS Signal and BS Signal in Signalling mode)
•
The CMU receiver settings and input path configuration (included in Analyzer,
MS Signal)
•
The trigger settings (included in Analyzer, MS Signal)
•
The RF connectors to be used and the external attenuation (RF Input/Output)
•
The reference signal and the system clock (Sync.)
•
In Signalling mode, all actions changing the CMU's signalling state (Connec-
tion)
•
In Signalling mode, a handover (Handover) to another network
•
In Signalling mode, parameters of the network and the mobile station under
test (Network)
All settings made in the Connect. Control menu apply to the whole function
group. Many of them can be overwritten, however, by means of the softkeys and
hotkeys offered in the graphical measurement menus.
Configurations
of measurements
A popup menu offering specific settings is assigned to each measurement group
(Power, Modulation, Spectrum, and Receiver Quality). The following parameters
can be defined:
•
The repetition mode, the stop condition, the statistic count and the display
mode for the measurement (Control)
•
Tolerances for the measured quantities (Limits, Limit Lines)
These settings are explained in more detail below (see section General Settings
on page 3.5 ).
Configuration via
hotkeys The softkeys and associated hotkeys in the graphical measurement menus pro-
vide the most important configurations for the current measurement; see chap-
ter 4 and chapter 3 of the CMU200 operating manual. Settings may via hotkeys
supersede the corresponding
Connection Control settings.
Measurement Groups
Measurement results are indicated in two different ways:
•
Discrete values and parameters are displayed in output fields, lists and tables. In remote control,
these results are referred to as scalars.
•
Measurement curves (traces) are displayed in a Cartesian coordinate system, the time forming the
x-axis scale. Relatively small sets of test points are generally viewed in a bar graph. In remote con-
trol, results of this type are referred to as arrays.
While the measurement is running in repetition mode continuous (see page 3.5 ), the indicated results
are constantly updated. As shown in the table below, some of the measurement groups are different for
the two test modes.
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