R&S FSPN, User Manual

Page: 90 / 555

Measurements and Result Displays
R&S
®
FSPN
90 User Manual 1179.4363.02 ─ 01
Result Description
Trace Shows the number of the trace the integration is
applied to.
Start / Stop Offset Shows the start and stop offset of the integration
interval.
Weighting Shows the name of the weighting filter, if you have
applied one.
Int Noise Shows the integrated noise.
The integral is calculated over the frequency range
defined by the "Start" and "Stop" values.
PM * Shows the residual PM result in degrees and rad.
(Only available for Phase Noise traces.)
FM / AM * Shows the residual FM results in Hz or the residual
AM results in %, depending on the
trace configura-
tion .
(Only available for Phase Noise traces.)
Jitter * Shows the jitter in seconds.
(Only available for Phase Noise traces.)
* For baseband noise measurements, these values are always 0.
Remote command:
Int. PHN:
FETCh<n>[:RANGe<j>]:PNOise<t>:IPN?
on page 330
FM:
FETCh<n>[:RANGe<j>]:PNOise<t>:RFM?
on page 331
AM:
FETCh<n>[:RANGe<j>]:PNOise<t>:RAM?
on page 330
PM:
FETCh<n>[:RANGe<j>]:PNOise<t>:RPM?
on page 332
Jitter:
FETCh<n>[:RANGe<j>]:PNOise<t>:RMS?
on page 331
Spurious List
Spurs are peak levels at one or more offset frequencies and are caused mostly by
interfering signals. The "Spurious List" result display shows the location of all detected
spurs in a table.
Note that only signals above a certain threshold are regarded as spurs. This threshold
is also considered in the spurious list if spur removal has been turned off for a trace.
The order of the spurs in the table depends on the sort order .
The table consists of a variable number of rows. For each detected spur, the table
shows several results.
Wnd Shows the number of the measurement window the
spur is in (usually "1", unless you have several noise
diagrams open at the same time).
Trace Shows the trace that the spur is on.
Spur Shows the spur number. Spurs are sorted by their
frequency, beginning with the spur with the lowest
frequency.
Offset * Shows the position (offset frequency) of the spur.
Result Displays