HP 54750A, User Manual, Page: 331 / 478

The General Function Menus
Disk Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
text verbose The text verbose format is an ASCII le format that uses alphanumeric
characters to represent the waveform. Y ou can load text les into a word
processing program.
T ext verbose waveforms have the le extension .TXT . Y ou may notice that
text les use about three times more disk space than les stored to a disk
using the internal format. T able 11-1 shows an example of the text verbose
format.
K ey Path 4
Disk
5
N NNNNNNNNNNNNNNNNNNNNNNNNNNNN
Operation
NNNNNNNNNNNNNN
load
NNNNNNNNNNNNNNNNN
Enter
NNNNNNNNNNNNNN
Type
NNNNNNNNNNNNNNNNNNNNNNNNNN
waveform
NNNNNNNNNNNNNNNNN
Enter
NNNNNNNNNNNNNNNNNNNN
Format
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
text verbose
Header information When a text waveform is read back into the instrument, the header
information can be in any order . On a versus waveform (refer to the Math
menu), make sure the X data is listed before the Y data in the waveform text
le . Because the instrument converts all characters to uppercase , the header
information can be a mix of uppercase and lowercase characters . There must
be at least one space between a header and its corresponding data. F or
example , there must be at least one space between \Type:" and \raw ."
Error Messages If you have modied the header information and a header eld is omitted,
the instrument sets that eld to the default value . The default values are
listed with the descriptions of each header eld. If the header information is
incorrect, you will get one of the following error messages .
Waveform data is not valid
An error was detected in the waveform data. This error occurs if one of
the data points is not a valid oating point number .
Header information is not valid
An error was detected in the header information. This error occurs if one
of the header elds or the header data is incorrect.
If the results are not what you expected after reading an ASCII waveform
back into the instrument, the cause is that the instrument is interpreting
your data dierently than you expected. Try restoring the ASCII waveform
from the waveform memory back to the disk. By comparing the restored
data to what you had entered into the instrument, you may nd your error .
11-15