Disk menu 5-42 – SRS Labs SR850 User Manual

Page 152

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Disk Menu

5-42

Save Data

The Save Data submenu is used to save the trace data which is on the
active chart display to the disk.

Save Data

Pressing this key will save the trace which is displayed
by the active chart display to the file specified in the File
Name field. Only a single trace is saved in a file, even if
more traces are stored in the buffer. If the active display
is not a chart, no action is taken.

The ENTIRE trace is saved, including data which is cur-
rently not within the chart time window. Data is stored in
binary form and requires 4 bytes per data point. The
number of data points is the scan length times the
sample rate. Be aware that long scans at high sample
rates take up large amounts of disk space and take
longer to save and recall. Try to define the scans so that
the files are a manageable size.

Marks are saved with the trace data.

In addition, the instrument state (sensitivity, input config-
uration, time constant, reference, scan parameters, aux
outputs) and the trace definition of the stored trace are
saved.

Save ASCII Data

Pressing this key will save the trace in the active chart
display to disk in ASCII format. Only the trace data is
saved. The data is saved as "1.236774e-002<cr>
<lf>4.564522e-002<cr><lf>7.890034e-002<cr><lf>..."
where "1.236774e-002" is the first (bin 0) data point,
"4.564522e-002" is the next data point, etc. The data is
exactly as if read from the cursor display.

The ENTIRE trace is saved, including data which is cur-
rently not within the chart time window. Ascii storage
requires about 15 bytes per point. The number of data
points is the scan length times the sample rate. The
required file size may exceed the disk capacity! Try to
define the scan so that the files are a manageable size.

The ASCII format is a convenient way to transfer data to
other programs on a PC. The file is a simple DOS text
file. ASCII files may not be recalled on the SR850!

File Name

This key activates the File Name entry field. File names
are entered using the alternate keypad. The [ALT] key
allows letters to be entered. DOS file name conventions
must be followed, i.e. file names are 8 characters or less
with an extension of up to 3 characters. "ABC-
DEFGH.XYZ" is a valid file name. It is not necessary to
press [ENTER] following the file name. DOS sub-
directories are not supported.

ASCII

Save:

Catalog

TEST

File Name

Data

Save:

Return:

Off

On

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