VNA GUI Reference
R&S
®
ZNL/ZNLE
306
User Manual 1178.5966.02 ─ 07
"Lin Freq" is the default sweep type. In a Cartesian diagram, the measurement result is
displayed as a trace over a linear frequency scale (as known, e.g., from spectrum ana-
lyzers). The following example shows a "Lin Freq" sweep with the forward transmission
parameter S
21
as measured quantity, and a "dB Mag" scaled y-axis.
Remote command:
LINear
Log Freq
In a "Log Freq" sweep, the stimulus frequency is swept on a logarithmic scale over the
continuous frequency range. The frequency range (sweep range) and the internal gen-
erator power can be specified in the "Stimulus" settings (see
on page 289). The sweep points are calculated from the "Span" and the specified
"Number of Points" (n > 1) with the condition that the step width is constant on the log-
arithmic scale.
"Log Freq" sweeps are suitable for the analysis of a DUT over a large frequency range,
e.g. over several octaves. In a Cartesian diagram, the measurement result is displayed
as a trace over a logarithmic frequency scale. The following example shows a "Log
Freq" sweep with the forward transmission parameter S
21
as measured quantity, and a
"dB Mag" scaled y-axis.
Tip:
In "Log Freq" representation, limit lines and ripple limit lines appear as exponential
Chapter 8.4.1.1, "Rules for Limit Line Definition"
Sweep Softtool
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