Length Control - Agilent Technologies 4000 X-Series User Manual

18
Save/Recall (Setups, Screens, Data)

Length Control

The Length control is available when saving data to CSV, ASCII XY, or BIN
format files. It sets the number of data points that will be output to the
file. Only displayed data points are saved.
When Max Length is enabled, the maximum number of waveform data
points is saved.
The maximum number of data points depends on these things:
• Whether acquisitions are running. When stopped, data comes from the
• Whether the oscilloscope was stopped using [Stop] or [Single]. Running
• Whether only one channel of a pair is turned on. (Channels 1 and 2 are
• Whether reference waveforms are on. Displayed reference waveforms
• Whether digital channels are on. Displayed digital channels consume
• Whether segmented memory is on. Acquisition memory is divided by
• The horizontal time/div (sweep speed) setting. At faster settings, fewer
• When saving to a CSV format file, the maximum number of data points
When necessary, the Length control performs a "1 of n" decimation of the
data . For example: if the Length is set to 1000, and you are displaying a
record that is 5000 data points in length, four of each five data points will
be decimated, creating an output file 1000 data points in length.
When saving waveform data, the save times depend on the chosen format:
314
raw acquisition record. When running, data comes from the smaller
measurement record.
acquisitions split memory to provide fast waveform update rates. Single
acquisitions use full memory.
one pair, channels 3 and 4 are the other.) Acquisition memory is
divided among the channels in a pair.
consume acquisition memory.
acquisition memory.
the number of segments.
data points appear on the display.
is 64K.
Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide