SIGLENT
24 SSA3000X User Manual
2.1.2.2 Full Span
Set the span of the analyzer to the maximum.
2.1.2.3 Zero Span
Set the span of the analyzer to 0Hz. Both the start and stop frequencies will equal the center
frequency and the horizontal axis will denote time. The analyzer measures the time domain
characteristics of the amplitude of the corresponding frequency point on the input signal. In use
process pay attention to the following points:
The following functions are invalid in Zero span mode: Peak ->CF, Signal Track, Zoom In, Zoom
Out.
Frequency: Peak->CF;
SPAN: Zoom In and Zoom Out;
Marker-> : M ->CF, M->CF step, M->Start Freq, M->Stop Freq, M->CF and M->Span;
Marker: Frequency, Period and 1/ Time(valid in Delta marker type);
2.1.2.4 Zoom In
Set the span to half of its current value. At this point, the signal on the screen is zoomed in to
observe signal details.
2.1.2.5 Zoom Out
Set the span to twice the current value. At this point, the signal on the screen is zoomed out to gain
more information about the signal.
2.1.2.6 Last Span
Set the span to the previous span setting.
2.1.3 Amplitude
Set the amplitude parameters of the analyzer. Through modifying these parameters, signals under
measurement can be displayed in a proper mode for easier observation and minimum error.
2.1.3.1 Ref Level
Set the maximum power or voltage can be currently displayed in the window. The value is
displayed at the upper left corner of the screen grid.
The maximum reference level available is affected by the maximum mixing level, input attenuation
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