Rohde & Schwarz FSV3000, Руководство пользователя

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Common analysis and display functions
R&S
®
FSVA3000/ R&S
®
FSV3000
551 User Manual 1178.8520.02 ─ 08
Effect of peak excursion settings (example)
The following figure shows a trace to be analyzed.
Figure 7-6: Trace example
The following table lists the peaks as indicated by the marker numbers in the diagram
above, as well as the minimum decrease in amplitude to either side of the peak:
Marker # Min. amplitude decrease to either side of the signal
1 80 dB
2 80 dB
3 55 dB
4 39 dB
5 32 dB
To eliminate the smaller peaks M3, M4 and M5 in the example above, a peak excur-
sion of at least 60
dB is required. In this case, the amplitude must rise at least 60 dB
before falling again before a peak is detected.
Marker peak list
The marker peak list determines the frequencies and levels of peaks in the spectrum. It
is updated automatically after each sweep. How many peaks are displayed can be
defined, as well as the sort order. In addition, the detected peaks can be indicated in
the diagram. The peak list can also be exported to a file for analysis in an external
application.
Marker usage