Traces - Analyzer R&S ESCI
1166.6004.12 4.108 E-1
2.5 dB
Amplitude
Probability distribution
Amplitude distribution
(after averaging)
Amplitude distribution
(without averaging)
This low average value is usually corrected in noise power measurements by
a 2.5 dB factor. Therefore the R&S ESCI offers the selection of linear
averaging. The trace data are delogarithmized prior to averaging, then
averaged and logarithmized again for display on the screen. The average
value is always correctly displayed irrespective of the signal characteristic.
ASCII FILE
EXPORT
The ASCII FILE EXPORT softkey stores the active trace in ASCII format on a
floppy disk.
IEC/IEEE command
FORM ASC;
MMEM:STOR:TRAC 1,'TRACE.DAT'
The file consists of the header containing important scaling parameters and a
data section containing the trace data.
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 measurement) which are also separated by a semicolon.
This format can be read in from spreadsheet calculation programs, eg MS-
Excel. It is necessary to define ';' as a separator.
Note: Different language versions of evaluation programs may require a
different handling of the decimal point. It is therefore possible to
select between separators '.' (decimal point) and ',' (comma) using
softkey DECIM SEP.
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