4-47
Printing, Plotting, and Saving Measurement Results
Saving Measurement Results
Instrument State Files
When an instrument state is saved to a floppy disk, some or all of the following files may be
produced. This depends upon which arrays are select e d u n de r the
softkey menu, and whether the selected save format is BINARY or ASCII. The “XX” part of
the file name (FileXX) refers to the number of the instrument state. The first instrument
state saved to any particular disk will be named “File 00” , an d e ach su c cessive state saved
to that disk will be numbered “1” higher than the previous state (for example, “File01”and
“File02”).
Files with .i and .p File Extensions
The following two files (.i file and .p file) are always produced, except when
is selected. These files were separat e d to al lo w backward compatibility with older
instruments. The binary data contained in these two files is not meant to be read in an
external computer:
• FileXX.i is a binary file, which contains the generic portion of the current instrument
state (specifically, the System, Local, Preset, Copy, Save, and Sequence settings).
• FileXX.p is a binary file which contains portions of the instrument state sp ecific t o later
instruments.
Files with .10, .11, .12, .1a, .1b, and .1c File Extensions
The following files are only produced if you have an active calibration. FileXX.10 is a
binary file which stores the stimulus state of the instrument as it relates to an active
calibration (specifically, the Power, Sweep Setup, Start, Stop, Center, and Span settings).
The same type of file is produced if Channel 2 is active, but the fi l e ext ens ion is .20 instead
of the .10 file extension mentioned in the previous paragraph.
Files FileXX.11 through .12, .1a, .1b, and .1c are binary files which contain the 12 error
correction coefficients for Channel 1. If Channel 2 i s a ct ive, it will have the same array , but
file extensions are in the form .21, .22, .2a., .2b, and .2c. If you save in ASCII format, only
.10 and .1c are produced, with .1c containing the entire error correction array in a
two-column, real/imaginar y (C I TI file) format.
Files with File Extensions .r1 through .r8
FileXX.r1 through .r4 are produced when is turned ON. They may
be either binary or ASCII, and contain the four raw uncorrected S-parameters for
channel 1. Channel 2 has the same array, but file extensions are .r5 through .r8. In ASCII
format, the data is displayed as two columns of real/imaginary numbers (CITIfile format);
S11 appears first, S21 appears second, S12 appe a rs t h ird , a n d S2 2 a ppears last.
DEFINE SAVE STATE
DATA ONLY
RAW ARRAY on OFF