Data and file management
R&S
®
RTO6
459User Manual 1801.6687.02 ─ 05
<timestamp as double float of second acquisition>
<value 1>
<value 2>
<value ...>
In BIN files, the instrument writes some leading and trailing settling samples before and
after the waveform data. They ensure that the analysis of the reloaded reference wave-
form returns the same results as analysis of the original waveform. The number of
leading settling samples is provided in the header file.
12.2.1.3 Number of samples in the waveform data file
In this section, a sample is defined as one or more values acquired at a given sampling
time. The number of samples for one channel and acquisition is given in the header file
by the property SignalHardwareRecordLength.
If the waveform has more than one Y
-value per sample (e.g. envelope), the property
InterleavedTraceCount is > 1, and the number of values in the file for this wave-
form is:
No of values per waveform = InterleavedT
raceCount * SignalHardwareRecordLength
If multiple acquisitions are exported, the total number of values in the file is:
No of values = InterleavedTraceCount * SignalHardwareRecordLength * No of expor-
ted acquisitions
If "Interleaved x/y"is enabled, one horizontal value is added per sample. The total num-
ber of values in the file is:
No of values = (1+ InterleavedTraceCount) * SignalHardwareRecordLength * No of
exported acquisitions
In BIN files, the value SignalHardwareRecordLength includes the number of
required samples in the waveform and additional samples at the beginning (leading
samples) and the end of the file (trailing samples). The number of additional samples
is:
No of additional samples = SignalHardwareRecordLength - SignalRecordLength
The number of leading additional samples is given in the header file:
LeadingSettlingSamples.
The number of trailing additional samples is:
No of trailing additional samples = No of additional samples - LeadingSettlingSamples
=
SignalHardwareRecordLength - SignalRecordLength - LeadingSettlingSamples
MSO option R&S RTO6-B1:
If the data of digital channels is stored in BIN format, 1 bit is written for each sample. 8
data samples are written in 1 byte (data word). Thus, the file size is
File size = Number of samples / 8
For example, 100 MSa are written into a 12.5 MByte BIN file. After reading the file, you
have to extract the samples from the data words.
Save and recall waveform data and results
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