Getting Started
R&S
®
FSPN
46
User Manual 1179.4363.02 ─ 01
Label
Information
Ref
Reference (for delta markers)
Trc
Trace to which the marker is assigned
X-value
x-value of the marker
Y-value
y-value of the marker
3.3.1.4
Spot Noise Information
Spot noise information in diagram grid
The diagram contains information about all spot noise positions [T<x>]. Spot noise
information is made up out of the position of the spot noise measurement on the x-axis
and the y-axis. The value in the square brackets after the index indicates the trace to
which the spot noise calculation is assigned (Example: [T1] indicates trace 1). Note
that you can also display spot noise information in a separate table.
Spot noise information in spot noise table
The R&S
FSPN also provides a numerical result table for the spot noise measurement.
The spot noise table has to be added deliberately. Note that the spot noise table only
contains information when the calculation of spot noise has been turned on.
Table 3-5: Spot noise information result table
Label
Information
Wnd
Measurement window that the spot noise has been calculated for.
(Only if there is more than one window containing a phase noise diagram.)
Offset
Offset frequency or spot noise position on the x-axis of the Phase Noise dia-
gram.
Noise [T<x>]
Measured noise on the spot noise position for each active trace.
3.3.1.5
Measurement Progress Information
The Phase Noise result display shows the progress of the measurement in a series of
green bars at the bottom of the diagram area. For each half decade in the measure-
ment, the R&S
FSPN adds a bar that spans the frequency range of the corresponding
half decade.
The bar has several features.
●
Measurement times less than 1
s
The numbers within the green bar indicate the number of cross-correlation opera-
tions applied to the corresponding half decade.
●
Measurement times greater than 1
s
The numbers within the green bar show the progress of the cross-correlation oper-
ations in the half decade the application currently works on.
Operating the Instrument