Saving and Printing Data 7
6000 Series Oscilloscope User’s Guide 303
• ASCII XY data file — Gives a separate file for each channel’s
output. For example: print_nn_channel1.csv. Maximum
record length is obtained in single shot mode.
• BIN data file — Saves waveform data to a binary format file
(see “Binary Data (.bin)” on page 334).
Length Control
The Length softkey appears when the CSV, ASCII XY, or BIN
formats are selected. Length sets the number of data points that
will be output to the file. Length can be set to 100, 250, 500, or
1000 when the acquisition is running or more when the
acquisition is stopped. However, if serial decode is on, the full
record length is always output.
Only displayed data points are output. Therefore, you need to
adjust the Horizontal controls to display the data you want to
save.
The Length control will perform a “1 of n” decimation of the
data when necessary. 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.
Minimum and Maximum Values in CSV Files
If you are running a Quick Measurement Minimum or Maximum
measurement, the minimum and maximum values shown in the
Quick Measurement display may not appear in the CSV file.
Explanation:
When the oscilloscope’s sample rate is 4 GSa/s, a sample will be
taken every 250 ps. If the sweep speed is set to 100 ns/div, there
will be 1000 ns of data displayed (because there are ten
divisions across the screen). To find the total number of
samples the oscilloscope will take:
For measurement data, the oscilloscope will decimate the 4000
points to 1000 points that will fit on the display. This
decimation will not lose track of the min and max values at each
000ns 4Gsa s⁄× 4000sample
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