Keysight N9912-90001 User’s Guide 8- 19
SA (Spectrum Analyzer) Mode
SA Mode Settings
Independent Source can be enabled ONLY when the FieldFox is in SA mode.
— To view the internal source, you must connect a cable or device
between the RF Output connector and the RF Input connector.
How to make Independent Source Settings
—Press Measure 1.
—Then Source
.
— Source Enable ON OFF
— ON Turns ON the internal source.
— OFF
Turns OFF the internal source.
— Source Mode
Choose from the following:
— Tracking
The internal source sweeps simultaneously (tracks) with the
SA receiver over the displayed frequency range, emulating NA mode
measurements. Src is annotated on the screen.
— CW
The source is set to a CW frequency independent from the SA
setting. Srcw is annotated on the screen.
— Coupled CW
The source is set to a CW frequency, but that frequency
“tracks” the SA receiver Center Frequency setting. Therefore, the
signal always appears at center of the display. Srcp is annotated on
the screen.
— Normalize ON OFF
With Source Enable ON and Source Mode = Tracking,
Normalize ON stores the current measurement trace into Trace 4 in View
state as a reference trace. All subsequent trace measurements subtract out
this Trace 4 reference trace, and therefore become relative to it. This
causes measurements to appear near the ZERO absolute level on the y-axis
(0 dBm if UNIT is set to dBm). SrcN is annotated on the screen. Normalize
is automatically turned OFF when the frequency range or Resolution is
changed.Learn more about Trace Display States in “Trace Display States”
on page 8-28.
— Source Power
Sets the source attenuation from 0 to 31 dB in 1 dB steps.
This effectively sets the source output power. While changing the source
attenuation, the approximate Nominal Output power is annotated to the
right of the active entry setting.
The FieldFox output power is approximate and NOT flat across the
frequency range.
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