File Format
The file format softkey determines the format that is used to store waveforms
to a disk. The three waveform file formats are internal, text verbose, and text
Y values. The two mask file formats are mask only, and mask and setup.
When a text file is loaded into the oscilloscope, it is placed into one of the
four waveform memories by overwriting any data that was previously stored
in that waveform memory.
In the HP 54710D and 54720D, you can only use the .TXT format on
waveforms of 128K points or less.
Internal
The internal format is a binary file format, which if you try to read it in a word
processing program, it will give you meaningless information. However, this
is the preferred waveform-storage method because the files take up one-third
as much disk space as text files. You can always convert them to text files at
a later date. Internal format files have a .WAV file extension.
Waveform files stored using the internal format contain the vertical and
horizontal scaling parameters of the original waveform. Therefore, you can
go into the waveform menu and turn on the display for the waveform memory
that the file was loaded into. Then, you can perform measurements on the
waveform, compare it to other waveforms, rescale it vertically and
horizontally, or use it as a function operand.
Disk Menu
File Format
8–12
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