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R&S ZVL
GUI Reference
Trace Menu
Operating Manual 1303.6580.32-06
170
measurements.
•
Loss
is the loss of the filter at its center frequency and is equal to the response value of marker
no. 4. For an ideal bandpass filter the loss is zero (0 dB), for an ideal bandstop filter it is – dB.
The info field contains the following search results:
•
Bandwidth
is the n-dB bandwidth of the bandpass/bandstop region, where n is the selected
x dB
Bandwidth.
The bandwidth is equal to the difference between the Upper Bandwidth Edge (UBE)
and the Lower Bandwidth Edge (LBE).
•
Center
is the stimulus frequency where the trace reaches its absolute maximum (minimum) within
the bandpass (bandstop) region.
•
Lower Band Edge
is the closest frequency below the center frequency where the trace is equal to
the center value minus n dB
.
•
Upper Band Edge
is the closest frequency above the center frequency where the trace is equal to
the center value minus n dB
.
•
The
Quality Factor
is the ratio between the
Center
frequency and the 3-dB
Bandwidth;
it does not
depend on the selected
x dB Bandwidth.
•
Loss
is the loss of the filter at its center frequency and is equal to the response value of marker
no. 4. For an ideal bandpass filter the loss is zero (0 dB), for an ideal bandstop filter it is – dB.
Remote control:
CALCulate<Chn>:MARKer<Mk>:BWIDth?
CALCulate<Chn>:MARKer<Mk>SEARch:BFILter:RESult[:STATe]
Marker Tracking
Causes the active minimum/maximum or target search of the active marker to be repeated after each
sweep: When tracking mode is active the marker typically changes its horizontal and its vertical position
as the measurement goes on.
Tracking mode properties
The tracking mode is available for all search modes, i.e. for minimum/maximum search, target search and
bandfilter search. The
Marker Tracking
function in the
Search
submenu is valid for an active
minimum/maximum and target search; bandfilter tracking can be activated separately. Tracking is marker-
specific but can be switched on for several markers simultaneously.
Switching between
Max Search
and
Min Search
does not affect the tracking mode.Tracking is switched off
though when one of the following actions is performed:
•
Redefinition of the active marker position by means of the functions in the
Marker
menu or drag-
and-drop of the active marker symbol.
•
Change of the active marker's search mode, e.g. from a minimum/maximum search to a target
search.
Tracking
is a toggle function: Selecting the function repeatedly switches the tracking mode on and off.
Remote control:
CALCulate<Chn>:MARKer<Mk>:SEARch:TRACking
Def Peak
Opens a dialog to define the peak type to be searched for.