Rohde & Schwarz CMU-K20, Operating Manual

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Special Terms and Notation CMU-K20/-K21/-K22/-K23/-K24
1115.6088.12 5.8 E-10
Bit-No. Meaning Symbol in
STATus:OPERation:SYMBolic...
12
RF Input Underdriven
This bit is set while the RF input level at connector RF1, RF2 or RF 4
IN falls below the measurement range controlled by the specified
RF
Max. Level.
RFIU
Special Terms and Notation
Below we list some particular features in the syntax of the GSM commands. The general description of
the SCPI command syntax can be found in chapter 5 of the CMU operating manual, section
Structure
and Syntax of Device Messages.
Description of
commands
The commands are arranged in tables. From top to bottom, the table rows con-
tain the following entries:
1. Complete command syntax including the complete parameter list or a list of
identifiers to be quoted in the parameter description below. The keyword on
the right side gives a short description of the command. If possible, it is iden-
tical to the corresponding function (softkey, hotkey etc.) in manual control.
2. List of all parameters with short description, range of values and default
units (for numerical parameters)
3. Detailed description of the command, signalling state and firmware version
required. If no signalling state is indicated, the commands can be executed
in any signalling states. Please note the remarks at the beginning of the sec-
tions for each measurement group.
Detailed lists of default values are annexed to the command description. When-
ever possible, groups of analogous commands are described in common
tables.
Order
of commands
The commands are arranged according to their function specified by the key-
word in the second level or in the second/third level combined. Lower-level key-
words define the command in more detail. This means that commands with the
same second-level, third-level etc. keywords are generally grouped together in
the same sections.
Example:
CONFigure:POWer:CONTrol:GRID <Enable>
Commands with the keyword POWer in the second level belong to the power
measurement. The keywords in the third and fourth level indicate that the
command controls whether a grid is displayed in the power versus time dia-
gram.
Scalar results
and arrays
To limit the number of remote control commands in an application program, all
scalar results of a measurement group are usually measured together and re-
turned in a common list. Arrays (e.g. the traces for
POWer
and
MODulation
measurements) are returned as comma-separated lists of values; it is possible
to retrieve either the whole list (see commands
READ:ARRay...
etc.) or the
values located in a number of subranges that are part of the total measurement
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