R&S FSH
Network Analyzer Mode
Calibrating Measurements
Operating Manual 1309.6275.12 - 14
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The R&S FSH calibrates the "Load".
M
Disconnect the "Load".
Next, the R&S FSH asks you to set up
a "Through" connection from port 1 to
port 2.
M
Firmly connect the "Through" connection to port 1 and port 2.
M
Press the "Continue" softkey to start calibration.
The R&S FSH calibrates the "Through" connection.
After finishing the calibration routine, the R&S FSH shows that calibration is
finished for a short time (
). The status line now says (Cal) to indicate
successful calibration.
Selecting a calibration kit
To avoid phase errors, you have to define the characteristics of the calibration kit you'd
like to use and then select the calibration kit in use. The R&S FSH then corrects the
measurement results accordingly.
You can either use one of the calibration kits specifically designed for use with the
R&S FSH, e.g. the R&S FSH-Z28 and -Z29 calibration kits. Those provide an "Open",
"Short" and "Load" calibration standard in one piece. The characteristics of these
calibration kits are already part of the R&S FSH firmware.
You can create and edit calibration kits with the R&S FSH4View software and transfer
them to the R&S FSH via the USB or the LAN interface. The number of standards the
R&S FSH can store in its memory depends on the number of other data sets stored on
the R&S FSH. For more information see "
Saving and Loading Instrument Settings and
M
Press the MEAS key.
M
Press the "Calibration" softkey.
M
Select the "Select Calkit [ ]" menu item.
The R&S FSH opens a dialog box to select the calibration kit. The list of supported
calibration kits covers those supported by the R&S FSH and those that you have
customized.
M
Select the calibration kit you are using.
The R&S FSH uses the characteristics specified for the calibration kit.
It also shows the calibration kit currently in use next to the "Select Calkit [ ]" menu
item.
You can also use calibration kits other than the R&S FSH-Z28 or -Z29 in combination
with their characteristics. However, make sure that the electrical length of the
calibration kit in use is similar to that of the R&S FSH-Z28 or -Z29. The electrical length
of the "Open" and "Short" of the R&S FSH calibration kits is 5.27 mm. If the electrical
length is different, it may cause additional phase error.
