Data Management
R&S
®
FSW
557
User Manual 1173.9411.02 ─ 19
8.4.4 Reference: ASCII File Export Format
Trace data can be exported to a file in ASCII format for further evaluation in other
applications. This reference describes in detail the format of the export files for result
data.
(For details see
chapter 8.4.2, "How to Export Trace Data and Numerical Results"
For a description of the file formats for spectrum emission mask (SEM) measurement
settings and results, see
chapter 5.6.8, "Reference: SEM File Descriptions"
on page 231.
The file format for Spurious Emissions measurement results is described in
ter 5.7.6, "Reference: ASCII Export File Format (Spurious)"
The file consists of the header containing important scaling parameters and a data sec-
tion containing the trace data. Optionally, the header can be excluded from the file (see
"Include Instrument Measurement Settings"
The data of the file header consist of three columns, each separated by a semicolon:
parameter name; numeric value; basic unit. The data section starts with the keyword
"Trace <n>" (<n> = number of stored trace), followed by the measured data in one or
several columns (depending on the measurement) which are also separated by a sem-
icolon.
The results are output in the same order as they are displayed on the screen: window
by window, trace by trace, and table row by table row.
Generally, the format of this ASCII file can be processed by spreadsheet calculation
programs, e.g. MS-Excel. Different language versions of evaluation programs may
require a different handling of the decimal point. Thus you can define the decimal sep-
arator to be used (decimal point or comma, see
If the spectrogram display is selected when you select the "ASCII Trace Export" soft-
key, the entire histogram buffer with all frames is exported to a file. The data corre-
sponding to a particular frame begins with information about the frame number and the
time that frame was recorded.
Table 8-3: ASCII file format for trace export
File contents
Description
Header data
Type;R&S
FSW;
Instrument model
Version;5.00;
Firmware version
Date;01.Oct 2006;
Date of data set storage
Mode;ANALYZER;
Operating mode
Preamplifier;OFF
Preamplifier status
Transducer; OFF
Transducer status
Center Freq;55000;Hz
Center frequency
Importing and Exporting Measurement Results for Evaluation
