Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
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When a Zone Spectrum window is also displayed, as in the Zone Span View, an
orange shaded region appears in the Spectrum window, representing the region
occupied by the Zone Spectrum window
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When a Marker Table window is also displayed, as in the Marker Table View, the
markers in the Spectrum window are described in the Marker Table window
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When a Peak Table window is also displayed, as in the Peak Table View, the
peaks in the Spectrum window are described in the Peak Table window
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When a Gate window is also displayed, as in the Gate View, the Spectrum
window holds the Spectrum controlled by the gating function
3.2.2.2 Zone Spectrum
Window #2
In the Zone Span view, the screen is split into two windows. The top window is a
normal spectrum analyzer window, and the bottom window (Zone Window) shows a
window whose span represents a region (zone) within the top window.
Views in which the Zone Spectrum window appears:
View Size Position
"Zone Span" on page 189 Half height, full width Bottom
The data in the two windows represents two completely separate sweeps; each
window sweeps only when the focus (thick green border) is on that window. It is
important to understand that the data in the window without the focus remains
unchanged until the focus is moved to that window.
In the top window, the zone region is indicated by a light orange shading and solid
orange boundary lines. The Zone Window is not shaded orange; this emphasizes the
fact that, unlike Trace Zoom, the data in the Zone Window does not match the top
window but is from a separate sweep. You can set the span of the Zone Window
using "Zone Span" on page 299 (in the Frequency menu) and you can set the center
frequency of the Zoom Window using "Zone Center" on page 298 (in the Frequency
menu).
Note that in Zone Span, the span of the top window cannot go below 10 Hz. The
Zero Span toggle does not appear in Zone Span. If, on entry to Zone Span, the Span
is 0 Hz, Span reverts to the last nonzero span. Also, if the span of the top window is
between 10 Hz and 100 Hz on transition, Zone Span initializes to 10 Hz, not 10% of
Span.
More Information
In Zone Span, the window with the focus (the selected window) is the window that
updates. The selected window has a thick green border around it. When you enter
Spectrum Analyzer Mode User's &Programmer's Reference 191

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)