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Printing, Plotting, and Saving Measurement Results
Saving Measurement Results
If , or , or is selected, a CITIfile is
saved for each displayed channel with the suffix letter “D”, or “F”, followed by a number.
The number following “D” and “F” files is the channel number. When is
selected, an “r1” file is saved for channel 1/channel 3, and an “r5” file is saved for channel
2/channel 4. For more information on the CITIFile data format as well as a list of CITIFile
keywords, refer to the “Understanding the CITIFile Data Format” c hapter i n the r ef er ence
guide.
S2P Data Format
This format creates component data files that describe frequency dependent linear
network parameters for 2 port components. These files are assigned a file name with the
suffix "S" and are only output (that is, they cannot be read in by the analyzers).
Up to two S2P files are saved: S1 for channel 1, and S2 for channel 2. S2P files are not
stored for channel 3 or channel 4 because the data would be redundant. Each S2P file
contains all four S-parameter data.
An S2P file is only output when the all of following conditions are met:
• a full two-port or TRL two-port correction is turned on
• or is selected using
• is selected
Error-corrected data CITI files are always saved along with S2P files.
The template for component data files is as follows:
! comment line
# <frequency units> <parameter> <format> <Rn>
<data line>
..
<data line>
where
! indicates that all following on this line is a comment
# indicates that entries following on this line are parameters that are being
specified
frequency units GHz, MHz, kHz, Hz
parameter S for S-parameters
format DB for dB magnitude and angle in deg re e s
MA for linear magnitude and angle in degrees
RI for real and imaginary pair
Rn the reference impedance in ohms for the analyzer making the
measurement (R 50 or R 75)
DATA ARRAY ON
DATA ONLY ON
FORMAT ARY ON
RAW ARRAY ON
DATA ARRAY ON
DATA ONLY ON
DEFINE DISK SAVE
SAVE USING ASCII