Rohde & Schwarz CMU-K20, Operating Manual

Page: 88 / 646

Non Signalling: Power Measurements CMU-K20/K21/K22/K23/K24
1115.6088.12 4.10 E-11
a) Measurement Control
Each Power application is controlled by means of the measurement control softkey below the Connect.
Control softkey and the associated hotkeys.
P/t Norm.
GMSK
The P/t Norm. GMSK measurement control softkey (which changes to P/t Norm.
8PSK etc., depending on the application selected) controls the power
measurement application and indicates its status (RUN | HLT | OFF) . This status
can be changed after softkey selection (pressing once) by means of the ON/OFF
key or the CONT/HALT key. The status can be set independently for all Power
applications.
The active Power application generally suspends the other applications. On
switchover between different applications, the selected measurement status of
each application is stored and will be put into effect as soon as the application is
activated. In particular, an application in the status
RUN is restarted each time it is
activated.
Remote control
INITiate:<Application>
ABORt:<Application>
STOP:<Application>
CONTinue:<Application>
FETCh:<Application>:STATus?
<Application> = POWer:NORMal[:GMSK]
etc.
Measurement
configuration
Pressing the P/t Norm. GMSK softkey twice opens the popup menu Power
Configuration (see page 4.28 ). Besides, the measurement control softkey provides
hotkeys to define the scope of the measurement. All these settings are described in
more detail in section
Measurement Control (Power Configuration – Control) on
page 4.28 ff.
b) Selecting the Measurement Application
Appli-
cation
The Application softkey selects the power measurement application.
The applications P/t Normal <Mod_Type> depend on the modulation scheme of the
analyzed signal. In the P/t Multislot application, the modulation in each measured
slot can be defined separately. The P/Frame, P/Slot Graph, and P/Slot Table
menus and settings do not depend on the modulation scheme.
The Power measurement menu and the measurement control softkey change with
the application selected; the results are explained in section Measurement Results
on page 4.20 ff.
P/t Normal
GMSK
The P/t Normal GMSK hotkey selects the power versus time measurement for
GMSK modulated normal burst signals (see explanation of GSM burst structure at
the beginning of section
Limit lines (Power Configuration – Limit Lines) on page
4.32 ).
Remote control:
The P/t Normal GMSK application is selected by the keywords [:NORMal] [:GMSK]
in the 3
rd
and 4
th
level of the POWer commands, e.g. CONFigure:POWer
[:NORMal][:GMSK]...
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