Rohde & Schwarz CMU-K20, Operating Manual

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CMU-K20/-K21/-K22/-K23/-K24 GSM-MS Non Signalling Measurements
1115.6088.12 7.1 E-3
7 Remote Control – Program Examples
The following program examples illustrate how to solve typical measurement tasks in the Non
Signalling and in the Signalling mode. To keep the syntax as short and simple as possible, the
programs were written with the aid of Winbatch , a batch job tool organizing and simplifying the transfer
of commands and data between the controller and the instrument.
Winbatch uses device names such as CMUBASE, CMUGSMNS, CMUGSMSIG which are previously
defined and assigned to the primary address, secondary address, and some general device settings.
With these device names, a complete command line reads:
CMUBASE: <CMU_Command>
where
<CMU_Command>
may be any of the commands (setting commands or queries) specified within
the function group and mode identified by the device name CMUBASE. Program sequences consisting
of commands that are defined in several function groups and modes can be re-used with an exchanged
device name.
In addition to these data transfer commands, Winbatch provides WHILE, GOTO , and IF statements to
express conditions and define loops. With the statement
WHILE CMUGSM: SENS:SIGN:STAT? <> SYNC
the instrument waits until it has reached the signalling state Synchronized before it executes the
following commands.
For a C program assigning secondary addresses refer to chapter 7 of the CMU200 manual.
GSM-MS Non Signalling Measurements
The CMU generates a GSM signal which is configured, output via RF 3, fed in via RF 4, and measured
with the appropriate analyzer settings. To see which analyzer settings are necessary, it is
recommended to carry out the measurement manually first. Before doing so and running the program,
connect RF 1 to RF 2 using a coax cable, in analogy to the test setup suggested in chapter 2. Also,
configure your
Winbatch settings such that CMUBASE is the device name for the CMU BASE system
and CMUGSMNS denotes function group GSM900-MS Non Signalling .
ECHO ON
FPRINT ............................................................................
FPRINT INITIALISATION ROUTINE:
FPRINT ASK FOR THE IDENTIFIER OF THE CMU, RESET THE INSTRUMENT,
FPRINT DEFINE THE SECONDARY ADDRESSES FOR ALL AVAILABLE FUNCTION GROUPS
FPRINT ............................................................................
CMUBASE: *IDN?
Identification query
CMUBASE: *RST;*OPC?
Reset the instrument; prevent the following
command to be executed before *RST is
complete
CMUBASE: *CLS
Clear output buffer, set status byte
CMUBASE: SYST:REM:ADDR:SEC 1,"RF_NSig"
Define all function groups
CMUBASE: SYST:REM:ADDR:SEC 2,"GSM900MS_Sig"
CMUBASE: SYST:REM:ADDR:SEC 3,"GSM900MS_NSig"
CMUBASE: SYST:REM:ADDR:SEC 4,"GSM1800MS_Sig"
CMUBASE: SYST:REM:ADDR:SEC 5,"GSM1800MS_NSig"
CMUBASE: SYST:REM:ADDR:SEC 6,"GSM1900MS_Sig"
CMUBASE: SYST:REM:ADDR:SEC 7,"GSM1900MS_NSig"
FPRINT .............................................................................
FPRINT CONN ATTENUATION
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