Rohde & Schwarz FSW13, Руководство пользователя

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Measurements
R&S
®
FSW
232 User Manual 1173.9411.02 ─ 19
Emission Mask" dialog box and save the XML file afterwards. This way, no modifica-
tions have to be done in the XML file itself.
In addition to saving the current settings to a file, settings files can also be created
independently of the R&S
FSW, in an external application. When creating your own
XML files, be sure to comply with the following conventions because the R&S FSW can
only interpret XML files of a known structure. For sample files look in the
C:\r_s\instr\sem_std
directory of the R&S FSW.
To load a settings file, use the "Load" function in the "Standard Files" tab of the "Spec-
trum Emission Mask" dialog box (see
"How to load an SEM settings file" on page 229).
All XML files are stored under
C:\r_s\instr\sem_std
.
The files for importing range settings obey the rules of the XML standard. The child
nodes, attributes, and structure defined for the data import are described here.
Be sure to follow the structure exactly as shown below or else the R&S FSW is not
able to interpret the XML file and error messages are shown on the screen. It is recom-
mended that you make a copy of an existing file and edit the copy of the file.
Basically, the file consists of three elements that can be defined:
●
The "BaseFormat" element
●
The "PowerClass" element
●
The "Range" element
The "BaseFormat" element
It carries information about basic settings. In this element only the "ReferencePower"
child node has any effects on the measurement itself. The other attributes and child
nodes are used to display information about the Spectrum Emission Mask Standard on
the measurement screen. The child nodes and attributes of this element are shown in
table 5-13 .
Example:
In the sample file
PowerClass_39_43.xml
under
C:\r_s\instr\sem_std\WCDMA\3GPP
, these attributes are defined as follows:
●
Standard="W-CDMA 3GPP"
●
LinkDirection="DL"
●
PowerClass="(39,43)dBm"
The "PowerClass" element
It is embedded in the "BaseFormat" element and contains settings information about
the power classes. Up to four different power classes can be defined. For details refer
to
chapter 5.6.5.4, "Power Classes" , on page 218. The child nodes and attributes of
this element are shown in table 5-14 .
Spectrum Emission Mask (SEM) Measurement