Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 254 / 813

Trace Menu R&S
®
ZVA/ZVB/ZVT
1145.1084.12 4.92 E-6
CALCulate<Ch/Tr>:MARKer<Mk>:TYPE NORMal | FIXed
CALCulate<Ch/Tr>:MARKer<Mk>:DELTa[:STATe] ON
CALCulate<Ch/Tr>:MARKer<Mk>:MODE CONTinuous | DISCrete
CALCulate<Ch/Tr>:MARKer<Mk>:COUPled[:STATe] ON
Export Markers...
Calls up a Save As... dialog to store the current marker values to a marker file.
The analyzer uses a simple ASCII format to export marker values. By default, the marker file extension
is *.txt. The file contains all traces in the active setup together with their names and measured
quantities. Below each trace, the file shows a list of all markers with their names, stimulus and response
values.
The following example of a marker file describes a setup with two traces Trc1 and Trc2 . Trc1 has no
markers assigned, Trc2 has four markers named Mkr 1, ..., Mkr 4.
Search
The Search menu uses markers to locate specific points on the trace.
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 S
earch Range ) in order to find one of the following:
•
Absolute or relative (local) maxima and minima (minimum/maximum 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).
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 Mkr 1 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 in order to find all possible search results. Moreover
the analyzer provides a Tracking mode where the search is repeated after each sweep.