Keysight Technologies C Series - Spectrum Selection

264 Keysight N9915-90020 User’s Guide
RTSA (Real-time Spectrum Analyzer) Mode—Option 350
RTSA Mode Settings
—If the signal level DOES increase, then the receiver was compressed.
Set the RF Attenuation value at the setting when further increases no
longer result in an increase in the displayed power level.
Spectrum Selection
To select the spectrum-type for your measurement:
How to make Spectrum Settings
—Press Measure 1
—Then Press:
— Density Spectrum The signal displayed is a real-time spectrum with
a histogram bitmap. Refer to
Figure 10-3 on page 265 and Figure
10-4 on page 266
.
—
Spectrogram The signal is displayed is a real-time spectrum with a
spectrogram bitmap. Spectrogram views are valuable in capturing
signals that include both time and frequency variations. Refer to
Figure 10-5 on page 266.
—
Real-time Spectrum The signal is displayed as a real-time spectrum.
Use real-time spectrogram to quickly display measurements. Refer to
Figure 10-6 on page 267.
In all three spectrum measurements, there are four available traces
for representation of the real-time spectrum.
Density Spectrum and Spectrogram data is lost when you change modes,
because the FieldFox optimizes the instrument’s resources during mode
changes.