Rohde & Schwarz CMU-K20, Operating Manual

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CMU-K20/-K21/-K22/-K23/-K24 Structure of the GSM Function Groups
1115.6088.12 5.1 E-10
5 Remote Control – Basics
This chapter gives a survey of the basic features and concepts of GSM remote control commands. Re-
mote control can be described in terms analogous to the ones used in chapter 3 for the classification of
menus and settings for the graphical user interface. In the following, we will particularly point out the
similarities and differences between manual and remote control.
Structure of the GSM Function Groups
Chapter 6 of this manual gives a description of all GSM remote control commands, including their pa-
rameters, as well as the default values and ranges of all numerical parameters.
Function group
and mode
The commands for the function groups GSM400-MS, GSM850-MS, GSM900-
MS, GSM1800-MS and GSM1900-MS are largely identical, however, the ranges
of numerical values and some default settings may not coincide. In such cases,
the numerical values are explicitly quoted for all function groups.
Commands for the two modes Signalling and Non Signalling are listed sepa-
rately although many of them have the same syntax. The commands for the
measurement groups
WPOWer, NPOWer, POWer:SLOT, POWer:XSLot,
POWer:FRAMe, POWer:MSLot, MODulation
, and
SPECtrum
are identical in
both test modes, so they are reported only once.
Addressing The CMU uses extended addressing: The instrument is assigned a primary ad-
dress while each function group and test mode is identified via a secondary
address. This allows the same remote commands to be used in several function
groups and modes:
ibwrt(h_GSM900MS_SIG, "INITiate:POWer")
ibwrt(h_GSM1800MS_SIG, "INITiate:POWer")
ibwrt(h_GSM900MS_NSIG, "INITiate:POWer")
provided that the variables
h_GSM900MS_SIG
etc. have been appropriately
defined, see program examples in chapter 7.
The remote control commands for first
(SYST:COMM:GPIB:ADDR)
and secon-
dary
(SYST:REM:ADDR:SEC)
addressing are described in the CMU operating
manual. The
SYST:REM:ADDR:SEC
command uses the following names to
address the GSM network tests described in this manual:
GSM400MS_NSig, GSM400MS_Sig,
GSM850MS_NSig, GSM850MS_Sig,
GSM900MS_NSig, GSM900MS_Sig,
GSM1800MS_NSig, GSM1800MS_Sig,
GSM1900MS_NSig, GSM1900MS_Sig.
Order of commands The commands are arranged to form groups belonging to the same measure-
ment or the same type of configurations. These groups are identified by the
second-level keyword (as in
POWer
). Applications belonging to a measurement
group (see chapter 5 of the CMU operating manual) are identified by the third-
level keyword of each command (as in
SPECtrum:MODulation
). Chapter 6 is
organized as follows:
•
General configurations in the Non Signalling mode:
LEVel, RFANalyzer,
RFGenerator, INPut, OUTPut, CORRection:LOSS, DM:CLOCk,
TRIGger, MMEMory
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