Two-port measurements with the tracking generator R&S FSH
1309.6275.12 4.64 E-2
Set a value from -50% to +50% by using the rotary
knob or cursor keys or by entering a numeric value.
Confirm the selection with the ENTER key or the
MOVE Y softkey.
To enlarge an area:
Press the ZOOM ACTIVE softkey.
The selected window area will be enlarged by the
zoom factor that has been set. You can fine-adjust the
zoom window by using the MOVE X and MOVE Y as
described.
To deactivate enlargement:
Press the ZOOM ACTIVE softkey again.
Selecting the calibration standards:
Selecting the calibration standards:
Optionally, the calibration standards R&S FSH-Z29 and R&S FSH-Z28 are available for the R&S FSH.
The open and short calibration standards each have an electrical length of 5.27 mm. To eliminate the
phase error that would result, the electrical length for the S
11
measurement is corrected as standard.
Standards other than R&S calibration standards can also be used. This is conditional on the difference
in the electrical lengths of the open and short being as close to zero as possible. A length difference
introduces an additional phase error. The R&S FSH can also post-correct a phase shift due to other
cables and adapters that are used for S
11
and S
21
measurements.
Operating sequence:
Press the MEAS MODE softkey.
Select the menu item CALKIT… with the rotary knob
or the cursor keys.
A further selection menu opens.
With the rotary knob or the cursor keys, select
USER SHORT (to enter the electrical length of the
short) or USER OPEN (to enter the electrical length
of the open).
Terminate the selection with the ENTER key or the
MEAS MODE softkey.
Using the cursor keys or the rotary knob, change the
electrical length of the calibration standard
employed, or, using the numeric keys, enter a value
and terminate with the ENTER key.
The electrical length of the calibration standard has
now been taken into account for phase measurements
and in the Smith chart.
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