Agilent Technologies E4406A manual Changing the View, •Typical Measurement Windows, •Trace Display

Making Measurements

Preparing for Measurements

Changing the View

The following keys enable you to select the desired view of the measurement and to change scale parameters for the graphic window.

View/Trace - Selects a predefined view of the current measurement and highlights the selected window. Once a window is selected, the X and Y scale keys can be used to modify scale parameters. The types of windows, and X and Y scale parameters that are available will vary, depending on the measurement you have activated.

•Typical Measurement Windows

Spectrum window - Select this window if you want to view a signal in parameters of frequency and power. Changes to frequency span or power will sometimes affect data acquisition. For more details see the section on spectrum measurements.

Signal Envelope window - Select this window to view a signal in parameters of time and power. For more detail see the section on waveform measurements. Both RF and BbIQ signals can be viewed in this window.

I/Q Waveform window - Select this window to view the I and Q signal characteristics of the current measurement in parameters of voltage and time. This window is in both the spectrum and waveform measurements.

Press View/Trace, Spectrum, to view a spectrum measurement window, or View/Trace, Waveform to view a waveform measurement window.

•Trace Display

All - Displays both the current and the average trace.

Average - Displays only the average trace. The average trace is shown in blue.

Current - Displays only the trace for the latest data acquisition. The current trace is shown in yellow.

•Span / X Scale Keys

Span key. This key allows you to modify the frequency span. Changes in span may affect data acquisition.

Scale/Div key. This key allows you to modify the X scale parameter in units of time.

Sweep Time key. This key allows you to modify sweep time. Changes in sweep time will affect data acquisition.

Ref Value key. This key allows you to set the value of the reference level for X scale display in units of time.

Ref Position key. This key allows you to place the current

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