R&S 1332.4500K22, Руководство пользователя

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Concepts and features
R&S
®
ZNA
105 User Manual 1178.6462.02 ─ 20
***) Only avaiilable for transmission measurements (see Chapter 4.3.3.1, "Converted
impedances" , on page 127)
Marker coupling
It connects the markers of a set of traces.
Marker coupling allows you to compare different measurement results (assigned to dif-
ferent traces) at the same stimulus value. It connects the markers of a set of traces.
Marker coupling can be enabled:
●
either for all traces in the active recall set that have the same stimulus variable as
the active trace
●
or for all traces in a channel
●
or for all traces in a diagram that have the same stimulus variable as the active
trace
When marker coupling is enabled, the same markers are activated for all related
traces: if a marker was active for some related trace, then it is activated for all related
traces.
While marker coupling is active, the marker sets of the related traces are always kept
in sync, i.e.:
●
If a marker is added to (removed from) one of the related traces, it is also added to
(removed from) the other related traces.
●
If a marker is moved to a particular stimulus value for one of the related traces,
then it is moved to this stimulus value for all related traces.
If the new stimulus value is outside a trace's sweep range, the marker value is
invalid for this trace. The corresponding info field only displays the stimulus value.
Only one kind of marker coupling can be enabled. For instance it is not possible to cou-
ple markers per channel and per diagram at the same time.
Basic marker search functions
The search functions are tools for searching measurement data according to specific
criteria. A search consists of analyzing the measurement points of the current trace (or
of a user-defined subrange termed the "Search Range") to find one of the following:
●
Absolute or relative (local) maxima and minima (peak search).
●
Trace points with a specific response value (target search).
●
Trace segments with a shape that is characteristic for bandpass or bandstop filters
(bandfilter search); see
"Bandfilter search" on page 106.
When the search is activated, the active marker is moved to the (next) point that meets
the search criteria. If the trace contains no markers, a marker M1 is created and used
for the search. The search result is displayed in the marker info field. If no search result
can be found, the marker remains at its original position.
Some search functions can be activated repeatedly to find all possible search results.
Moreover the analyzer provides a "Tracking" mode where the search is repeated after
each sweep.
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