Data and file management
R&S
®
RTE
490User Manual 1326.1032.02 ─ 20
Remote command:
EXPort:WAVeform:RAW on page 1406
Byte order
Sets the endianess for INT16 data:
●
LSB first: little endian, least significant byte first
●
MSB first: big endian, most significant byte first
Remote command:
FORMat:BORDer on page 1083
12.2.3 Waveform histogram
Access: [FILE] > "Histogram"
The waveform histogram export saves data in two files. The *.Wfm.* file contains 256
or 512 absolute or relative histogram values. The other file is the header file.
Contents of the header file:
●
Source waveform of the histogram
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Histogram mode: vertical or horizontal
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Incidence of exported values: absolute or relative
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Histogram range: XStart, XStop, YStart, YStop
●
Name of the exported histogram
Data conversion:
Using the header data, you can calculate the waveform value to which a histogram
value belongs:
YValue = (YStop - YStart) / HistogramValuesCount * HistogramValueNumber + YStart
YStart -0.25 V
YStop 0.25 V
HistogramValuesCount 256 (total number of written rows in a CSV file)
HistogramValueNumber 68 (number of the row in a CSV file)
Y-Value (0.25 - (-0.25)) / 256 * 68 - 0.25 = -0.11719 V
Waveform data and results
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