R&S FSVA3000 Series, Руководство пользователя

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General Instrument Setup
R&S
®
FSVA3000/ R&S
®
FSV3000
604 User Manual 1178.8520.02 ─ 01
You are asked whether you would like to save the current configuration on the
R&S
FSV/A first.
4. Select the file name of the transducer factor.
5. Select the decimal separator that was used in the file.
6. Select "Select" .
The transducer factor is loaded from the specified file and displayed in the "Edit
Transducer" dialog box.
7. Activate the transducer factor as described in "How to activate and deactivate a
transducer" on page 601.
12.6 Frequency Response Correction (R&S FSV/A-K544)
If the Frequency Response Correction option (R&S FSV/A-K544) is installed, the
R&S FSV/A supports frequency response correction using Touchstone (
.snp
) files
or
.fres
files.
12.6.1 Basics on Frequency Response Correction
Input-specific frequency correction
Frequency response correction can be configured individually for all available input
types (RF, baseband). The settings in the "User-defined Frequency Response Correc-
tion" dialog box apply to the currently selected input type. Be sure to select the appro-
priate input source before you define the correction data (see
Chapter 8.2.2, "Input
Source Settings" , on page 311). In remote operation, be sure to use the correct com-
mand for the required input type (see "Input-specific frequency correction"
on page 1102).
Otherwise the correction may seem to fail because it was defined for a different input
type than the one being used.
Touchstone (.snp) files
Touchstone (
.snp
) files contain data to characterize a measurement setup in respect
to the gain and phase error over frequency. Such files are generated by network ana-
lyzers, for example. The R&S
FSV/A can use such files to compensate for any gain or
phase errors between the DUT and the connection from the DUT to the instrument.
Touchstone files can be defined for a varying number of input and output ports. The
total number of ports configured in the file is indicated by the file extension; the "n"
in
.snp
is merely a placeholder. Thus, a file for a cable with one input and one output
is referred to as an S2P file. A file for a switch with one input and 3 outputs is referred
to as an S4P file etc.
Frequency Response Correction (R&S FSV/A-K544)