GUI reference
R&S
®
ZNB/ZNBT
427
User Manual 1173.9163.02 ─ 62
Remote command:
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 414). 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
curves; see
Chapter 4.4.1.1, "Rules for limit line definition"
Remote command:
[SENSe<Ch>:]SWEep:TYPE LOGarithmic
Segmented
In a "Segmented" (linear) frequency sweep, the sweep range can be composed of sev-
eral continuous frequency sub-ranges or single frequency points. The sub-ranges are
termed sweep segments and are defined in the
.
Sweep Softtool
