SNA5000A Vector Network Analyzer User Manual 142
6.3.2.2
VBW
Set the video bandwidth in order to filter out the noise outside the video band.
● Reducing the VBW will smooth the trace and helps to highlight small signals from noise,
but it will also increase the sweep time (Sweep Time is affected by a combination of RBW
and VBW when it is in Auto mode).
● VBW varies with RBW when it is in Auto mode. While in Manual mode, VBW is not affected
by RBW.
6.3.2.3
RBW/VBW
Sets the ratio of Resolution Bandwidth to Video Bandwidth when the Video Bandwidth is in
Auto mode.
6.3.2.4
Span/RBW
Sets the ratio of Span to Resolution Bandwidth when the Resolution Bandwidth is in Auto mode.
6.3.2.5
Detector Type
The analyzer displays the sweep signal on the screen in the form of a trace. For each trace
point, the analyzer always captures all the data within a specific time interval and processes
(Peak, Average, etc.) the data using the detector currently selected, then it displays the
processed data (a single data point) on the screen.
Select an appropriate detector type according to the actual application in order to ensure the
accuracy of the measurement.
The available types are
Positive Peak
,
Negative Peak
,
Sample
and
Average
. The default is
Positive peak
.
1.
Positive Peak
For each trace point, Positive Peak detector displays the maximum value of data sampled
within the corresponding time interval.
2.
Negative Peak
For each trace point, Negative Peak detector displays the minimum value of data sampled
within the corresponding time interval.
3.
Sample
For each trace point, Sample detector displays the transient level corresponding to the
central time point of the corresponding time interval. This detector type is applicable to
Summary of Contents for SNA5000A Series
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