R&S FSW Series, Руководство пользователя

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Common Analysis and Display Functions
R&S
®
FSW
616 User Manual 1173.9411.02 ─ 43
For a description of the file formats for spectrum emission mask (SEM) measurement
settings and results, see
Chapter 7.6.8, "Reference: SEM File Descriptions" ,
on page 273.
The file format for Spurious Emissions measurement results is described in
Chap-
ter 7.7.6, "Reference: ASCII Export File Format (Spurious)" , on page 292.
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" on page 611).
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
"Decimal Separator" on page 612).
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 9-7: ASCII file format for trace export in the Spectrum application
File contents Description
Header data
Type;R&S FSW; Instrument model
Version;1.00; 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
Freq Offset;0;Hz Frequency offset
Start;10000;Hz
Stop;100000;Hz
Start/stop of the display range.
Unit: Hz for span > 0, s for span = 0, dBm/dB for statistics mea-
surements
Span;90000;Hz Frequency range (0 Hz in zero span and statistics measure-
ments)
Ref Level;-30;dBm Reference level
Importing and Exporting Measurement Results for Evaluation