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RTSA (Real-time Spectrum Analyzer) Mode—Option 350
RTSA Mode Settings
RTSA Mode Settings
Select RTSA Mode before making any setting in this chapter.
Because there is no calibration, these settings can be made in any order.
How to select RTSA Mode
— Press Mode_
— Then
When you initially select I/Q Analyzer, Real-time SA, or some of the other
spectrum settings (such as center frequency) a factory channel
Equalization measurement is applied to the signal. During channel
equalization measurement, the FieldFox displays a "Start Channel
Equalization". Stopping channel equalization is not permitted. See also,
"Alignments" on page
(Option 233–Mixed Analyzers)FUTURE."
Frequency Range
The X-axis frequency range determines the frequencies that are measured for
each sweep. The default Start frequency is 950 MHz. However, the Start
frequency can be set as low as –150 MHz. The internal LO of the FieldFox can
be seen at 0 Hz, which will mask signals that may be present.
Although the start frequency can be set as low as -150 MHz, amplitude
accuracy is specified above 9 kHz (depending on your model). Below
9 kHz (depending on model), frequency accuracy is maintained, but
amplitude accuracy is degraded. Refer to
https://www.keysight.com/us/en/assets/7018-03314/data-sheets/5990-
9783.pdf.
The FieldFox can be used with an OML frequency extender. Refer to
"Utilities" on page
https://www.keysight.com/us/en/assets/7018-06515/configuration-guid
es/5992-3701.pdf
page
The frequency range of the measurement can be changed using the following
methods:
— Set Center and Span frequencies (Frequency Span varies with instrument
— Set Start and Stop frequencies
— Toggle between Zero and Last selected span
— Using Marker -> Center
Keysight N9915-90020 User's Guide
Real-Time
SA.
206, in
772, the Configuration Guide at:
(5992-3701EN), and to
5.
model)
Chapter 9, "SA (Spectrum Analyzer) Mode
"Contacting Keysight" on
259
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