Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 242 / 813

Trace Menu R&S
®
ZVA/ZVB/ZVT
1145.1084.12 4.80 E-6
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 .
•
Output Format selects the format for the exported trace data. In the Re/Im 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.
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 S11 in the
file and in the
Select Parameter box.
•
*.s<n>p files (<n> = 2, 3,, 4) are intended for a complete set of <n>-port S-parameters. Data
export fails if the active channel does not contain the full set of <n>
2
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.
•
Export traces acquired in a power sweep or CW sweep.
•
Use export options.
Use a the Mathlab (*.dat) format if you want to import and process the trace data in Mathlab.
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 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.
An exported formatted trace can be processed and evaluated in an external application. Re-import into
the analyzer is only possible if the complex trace values are available.