Trying Out the Instrument
R&S
®
FSPN
47
Getting Started 1179.4370.02 ─ 01
The spurious list contains all detected spurs (including their characteristics) on
all traces and all windows.
For more information see the R&S
FSPN user manual.
Measuring spot noise
Spot noise is the phase noise or AM noise at a specific offset frequency (for
example the phase noise at 500
kHz).
► Open the SmartGrid ( ) and drag the "Spot Noise" item from the evaluation
bar into the display.
The table contains a list of spot noise values for selected frequency offsets (in
the default state, these are the decade edges) on each active trace.
For more information on the table contents see the R&S
FSPN user manual.
Tip:
You can define custom spot noise frequencies in the "Spot Noise" tab of
the "Noise Config" dialog box.
Measuring integrated noise
Integrated measurements show various noise characteristics, like the residual
noise, integrated over a certain offset frequency range.
► Open the SmartGrid ( ) and drag the "Integrated Measurements" item from
the evaluation bar into the display.
The table contains a list of integrated measurement results.
For more information on the table contents see the R&S
FSPN user manual.
Tip:
You can define
in the "Integration Ranges" tab
of the "Noise Config" dialog box.
5.2.3
Baseband Noise Measurement
Baseband Noise measurements measure the noise characteristics of a DUT over
an absolute frequency span (not relative to carrier).
You can use either the RF input for these measurements, or the baseband input.
The baseband input is DC coupled and extend the lower frequency range to
1
mHz (the lowest supported frequency on the RF input is 1
MHz). Using the
baseband input, you can, for example, test the voltage supply of DC sources.
Measurements
