190 Keysight N9927-90001 User’s Guide
SA (Spectrum Analyzer) Mode
SA Mode Settings
—Negative Peak [#NPk] Displays the minimum value of all the
measurements in each bucket.
—Sample
[#Smp] Displays the center measurement of all the
measurements in each bucket. This setting gives a good
representation of the random noise in each bucket. However, it does
not ensure that all signals are represented.
—Average
[#RMS] Displays the Root Mean Squared (RMS) average
power of all the measurements in each bucket. This is the preferred
method when making power measurements.
Display Line
A display line is a simple, horizontal line that can be placed at any amplitude
level on the SA screen or set to any level in IQA. Use a display line as mental
guide for visual feedback. A display line is similar to a Limit Line, except that no
PASS/FAIL testing occurs. A display line is easier to create than a Limit Line.
Learn more in “All about Limit Lines” on page 613.
Figure 9-8 Display Line with Annotations
How to create and move a Display Line
—Press Limit __8
—Then Display Line OFF ON
— Then enter a Y-axis value using the arrows or the rotary knob, then
press Enter
. Or enter a value using the numeric keypad and press a suffix
key or press Enter
.
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