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R&S FSH
Two-port measurements with the tracking generator
1145.5973.12 4.105
E-14
Measuring the reflection magnitude
Connect the DUT to the test port of the VSWR bridge.
Press the MEAS MODE softkey.
Using the rotary knob or the cursor keys, select
MAGNITUDE from the menu and confirm by
pressing either the MEAS MODE softkey or the
ENTER key.
The R&S FSH shows the return loss magnitude in the
upper right-hand corner of the display as a function of
the VSWR bridge used FSH-Z2: Magnitude refl. .
The changing of the display unit and the scaling of the
display are described in the section "Scalar
measurement of reflection".
Measuring the reflection phase
Press the MEAS MODE softkey.
Using the rotary knob or the cursor keys, select
PHASE from the menu and confirm by pressing
either the MEAS MODE softkey or the ENTER key.
The R&S FSH displays the DUT's phase characteristic
as a function of the frequency. Phase refl. will appear
in the upper right-hand corner of the display. In the
default scaling, the phase can only have values
between -180° and +180°.
Note:
In the diagram's default scaling of -180° to
+180°, the trace will be shown correctly only if the
phase difference between two adjacent test points is
less than 180°.
For additional information on the scaling of the phase
measurement, see section "Measuring the
transmission phase".
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