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3 Spectrum Analyzer Mode

3.2 Swept SA Measurement

View Size Position

"Gate View On/Off" on page 2686 Half height, full width Bottom

The Gate window is turned on or off by "Gate View On/Off" on page 2686 in the

Trigger menu, or it can be selected from the Data control on the Window Title

dropdown. Turning the Gate window on with the Gate View switch does not modify

the current view the way changing an existing window or adding a window does; it

does not create a starred (modified) view, it merely adds the Gate window and

shows no view as selected in the View menu.

Note that turning on the Gate window with the Gate View switch turns off any of the

other switched windows (Marker Table, Peak Table, Measure at Marker). Also note

that Gate View is unavailable in all views except Normal.

Note that when you are in one of these “switched” views, you cannot create a User

View; the Edit View icon is grayed-out. Note also that when you exit one of these

“switched” views, you are not prompted to save the starred view, because it does

not create a starred view; nor are you prompted to save the view when you leave the

current measurement; and when you return to that measurement, the switch is on

and just adds the window again.

3.2.3 Amplitude

Activates the Amplitude menu and selects Reference Level or Reference Value as

the active function, depending on the measurement.

Some features in this menu apply to multiple measurements. Some other features

apply only to specific measurements and their controls are blanked or grayed-out in

measurements that do not support the feature.

3.2.3.1 Y Scale

Contains controls that pertain to the Y axis parameters of the measurement. These

parameters control how data on the vertical (Y) axis is displayed and control

instrument settings that affect the vertical axis.

Reference Level

Specifies the amplitude represented by the topmost graticule line.

In this measurement, changing the reference level does not restart a measurement,

because it is a display function only. Instead, it vertically ‘pans’ all displayed traces

and markers to the new value. If a change to the reference level changes the

attenuation value (for example, via an auto coupling), then the measurement is

restarted.

See "Amplitude Representations" on page 203

202 Spectrum Analyzer Mode User's &Programmer's Reference

Keysight x-series User Manual

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