System Overview
R&S
®
ZVA
48
Getting Started 1145.1090.62 ─ 13
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Description of the test setup ("Power" of the internal source, IF filter "Bandwidth"
and "Step Attenuators", "Port Configuration")
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Correction data ("Calibration", "Offset")
The "Channel" menu provides all channel settings.
After changing the channel settings or selecting another measured quantity, the ana-
lyzer needs some time to initialize the new sweep. This preparation period increases
with the number of points and the number of partial measurements involved. It is
visualized by a "Preparing Sweep" symbol in the status bar: All analyzer settings can
still be changed during sweep initialization. If necessary, the analyzer terminates the
current initialization and starts a new preparation period. During the first sweep after a
change of the channel settings, an additional red asterisk symbol appears in the status
bar:
All analyzer settings can still be changed during sweep initialization. If necessary, the
analyzer terminates the current initialization and starts a new preparation period. Dur-
ing the first sweep after a change of the channel settings, an additional red asterisk
symbol appears in the status bar:
3.1.4 Data Flow
The analyzer processes the raw measurement data in a sequence of stages in order to
obtain the displayed trace. The following diagram gives an overview.
The diagram consists of an upper and a lower part, corresponding to the data process-
ing stages for the entire channel and for the individual traces. All stages in the diagram
are configurable. Note that the channel data flow for S-parameters (and quantities
derived from S-parameters such as impedances, admittances, stability factors etc.) dif-
fers from the channel data flow for wave quantities (and derived quantities such as
ratios, PAE etc.).
Basic Concepts
