70 Keysight CX3300 User’s Guide, Edition 4
Using the CX3300
Using Data Logger Mode
Limitations of Waveform Recording
There are some limitations to perform the waveform recording as follows.
• Sampling Duration value:
Limited by the size of the storage device, which must be larger than the total
file size.
• Sampling Rate value:
Limited by the transfer rate of the storage device, which must be faster than
the data rate.
• Missing data
When the waveform recording is in progress, missing data may occur. Then,
the CX3300 displays a message to report that missing data occurs and
continues the waveform recording as scheduled.
There are mainly two reasons which cause the missing data.
• The transfer rate of the storage device may be slower than the data rate.
• If the slide switch of Trigger for Triggered Segmentation is set to ON (Data
Logger > Recording > Trigger), it may take a long time to extract and tag
the waveform segments.
To avoid the missing data:
• Set the sampling rate slower, or reduce the number of channels.
• If the slide switch of Trigger for Triggered Segmentation has been set to
ON (Data Logger > Recording > Trigger), set it to OFF.
• If the slide switch of Trigger for Triggered Segmentation must be ON,
change Similarity Threshold (Data Logger > Recording > Similarity). Lower
similarity threshold reduces the number of the tags and comparisons
between waveform segments. It will make the time for extracting
waveform segments short.
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