Tektronix RSA6100A Series, Help Manual

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Analyzing Data > Analysis Settings Spectrum Time Tab
Spectrum Time Tab
This tab controls whether the Spectrum display uses the same Analysis Time parameters as all the other
views or uses a different Offset and Length. These settings do not apply to the DPX Spectrum display
because it has no acquisition record or analysis time.
Settings
Description
Spectrum Time Mode
Independent Causes the spectrum analysis views to use the settings unique to those displays.
Use Analysis Time settings Causes the spectrum analysis views to use the settings on the Analysis Time tab.
Spectrum Time (only available when Independent is selected)
Spectrum Offset Sets the beginning of Spectrum Time with respect to the selected time reference point
(selectable in the Analysis Time tab as either Acquisition Start or Trigger).
Spectrum Length The amount of data, in terms of time, from which spectrum traces are computed.
Auto When enabled, causes the instrument to set the Spectrum Length value based on the
RBW setting.
Actual This is a displayed value, not a setting. It is the Spectrum Length (time) being used
by the analyzer; this value may not match the Spectrum Length requested (in manual
mode). The actual spectrum length is always an integer multiple of the time needed to
support the RBW value.
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Frequency Tab
The Frequency tab speci fi es two frequency values: the Measurement Frequency and the Spectrum Center
Frequency. The Measurement Frequency is the frequency at which most displays take measurements. The
Spectrum Center Frequency is the center frequency used by the Spectrum, DPX Spectrum, Spectrogram
and Time Overview displays.
RSA6100A Series Real-Time Spectrum Analyzers Help
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