R&S ZVL
GUI Reference
Trace Menu
Operating Manual 1303.6580.32-06
153
option is not available for Matlab (*.dat) file export. Touchstone files *.s<n>p contain either a single trace
(*.s1p) or the complete set of S-parameters of an n-port and use the point as
Dec. Separator;
see
Trace
File Formats
. Some of the following output options also depend on the trace format.
•
Output Format selects the format for the exported trace data. In the Real-Imag format, each
complex measurement value is represented by its real and imaginary part. It is also possible to
store the linear magnitude and phase (Lin Mag-Phase) or dB magnitude and phase (dB Mag-
Phase) of each value.
•
Content selects only the Active Trace or All Traces of (the) Active Channel (including all data and
memory traces) for data export to an ASCII (*csv) file.
•
Dec. Separator selects either the Point or the Comma (if needed to process the exported data with
an external application) as a separator for decimal numbers exported to an ASCII (*.csv) file.
•
Ask to Overwrite activates a message box to be displayed before an older trace file with the same
file name and directory is overwritten.
•
Customize Header... opens the Customize Header dialog to define a custom header for the
generated trace file.
Selecting an appropriate file format
Use a
Touchstone
file format to export a fixed number of S-parameter data traces to a file that can be
evaluated with applications such as Agilent's Microwave Design System (MDS) and Advanced Design
System (ADS). The data must be acquired in a frequency sweep.
•
*.s1p files are intended for a 1-port S-parameter (the reflection coefficient S11) but can be used as
well to store any single S-parameter. Note that any S-parameter will be labeled S
11
in the file and
in the
Select Parameter
box.
•
*.s2p files are intended for a complete set of 2-port S-parameters. Data export fails if the active
channel does not contain the full set of 4 traces.
Use the
ASCII (*.csv)
format if you want to do one of the following:
•
Import the created file into a spreadsheet application such as Microsoft Excel.
•
Export an arbitrary number of traces, multiple traces with the same parameter or memory traces.
•
Use export options.
Use a the
Matlab (*.dat)
format if you want to import and process the trace data in Matlab.
For more information see Trace File Formats.
Remote
control:
MMEMory:STORe:TRACe
"<trc_name>","<file_name>"[,UNFormatted,...]
Export Formatted Data...
Calls up a dialog to store data or memory traces with their current trace format and stimulus values to a
trace file using a *.csv or *.dat file format. Only the displayed values of the trace (e.g. the logarithmic
magnitude, if trace format
dB Mag
is selected) are exported. Therefore the trace file doesn't necessarily
contain the full (complex) information about the trace.
The exported formatted values correspond to the results in the marker info field. For trace formats
involving Cartesian diagrams (dB Mag, Real, Imag...), the stimulus value and a single real
response value is exported. For circular diagrams, both the real and imaginary part of the response
value is exported. See also Complex vs. Formatted Data.
An exported formatted trace can be processed and evaluated in an external application. Re-import into the
