R&S FSH
Network Analyzer Mode
Evaluating the Results
Operating Manual 1309.6275.12 - 14
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In its default state, the marker position is specified by the marker frequency and
complex resistance in
[
. The complex resistance in that case is calculated according
to:
(real component) + j (imaginary component)
M
Press the "Marker Mode" softkey.
M
Select one of the marker formats.
The R&S FSH adjusts the marker
information accordingly.
Selecting the reference impedance
The default reference impedance (the matching point in the center of the Smith chart)
is 50
[
. It is, however, also possible to perform reflection measurements on networks
with another impedance.
M
Press the MARKER key.
M
Press the "Marker Mode" softkey.
M
Select the "Ref Impedance: …" menu item.
The R&S FSH opens an input field to select the reference impedance.
M
Enter the reference impedance you need.
The value range is from 1 m
[
to 10 k
[
.
4.4.1.2 Working with the Dual Trace Mode
When performing vector measurements, it is possible to perform and display two
measurements simultaneously. After activating this function, the R&S FSH shows the
two traces on two separate screens. This allows you to view any combination of two
vector measurement formats on the display.
Note that the Mag Phase measurement format is an exception to this rule. This
format counts as one trace. To display the magnitude and phase as two separate
traces, assign the Phase format to trace 1 and the Magnitude format to trace 2.
M
Press the MEAS key.
M
Press the "Result Display" softkey.
M
Select the "Show Trace 2" menu item.
The R&S FSH splits the screen. The upper screen shows trace 1, the bottom
screen shows trace 2. You can configure both screens as you like.
An [X] in front of the "Show Trace 2" menu item indicates that the dual trace mode
is active.
In addition, the menu of the "Result Display" softkey expands. It now shows the
available measurement formats that can be applied to trace 2.
