Rohde & Schwarz ESW Series - Page 256

Common Analysis and Display Functions
R&S
®
ESW
256User Manual 1177.6298.02 ─ 08
11.5.2.4 Reference: Limit Line File Format
Limit line data can be exported to a file in ASCII (CSV) format for further evaluation in
other applications. Limit lines stored in the specified ASCII (CSV) format can also be
imported to the R&S ESW for other measurements (see "How to import a limit line"
on page 255). This reference describes in detail the format of the export/import files for
limit lines. Note that the bold data is mandatory, all other data is optional.
Different language versions of evaluation programs may require a different handling of
the decimal point. Thus, you can define the decimal separator to be used (see "Deci-
mal Separator" on page 212).
Table 11-4: ASCII file format for limit line files
File contents Description
Header data
sep=; Separator for individual values (required by Microsoft Excel, for
example)
Type;RS_LimitLineDefinition; Type of data
FileFormatVersion;1.00; File format version
Date;01.Oct 2006; Date of data set storage
OptionID;SpectrumAnalyzer Application the limit line was created for
Name;RELFREQ1 Limit line name
Comment;Defines the upper limit line Description of limit line
Mode;UPPER Type of limit line (upper, lower)
ThresholdUnit;LEVEL_DBM Unit of threshold value
ThresholdValue;-200 Threshold value
MarginValue;0 Margin value
XAxisScaling;LINEAR Scaling of x-axis linear (LIN) or logarithmic (LOG)
XAxisUnit;FREQ_HZ Unit of x values
XAxisScaleMode;ABSOLUTE Scaling of x-axis (absolute or relative)
YAxisUnit;LEVEL_DB Unit of y values
YAxisScaleMode;ABSOLUTE Scaling of y-axis (absolute or relative)
NoOfPoints;5 Number of points the line is defined by
Data section for individual data points
-4500000000;-50 x- and y-values of each data point defining the line
-2000000000;-30
-1000000000;0
0;-30
2500000000;-50
Display and Limit Lines