GUI Reference
R&S
®
ZNB/ZNBT
507
User Manual 1173.9163.02 ─ 38
Tips:
Finding the appropriate aperture
A large smoothing aperture enhances the smoothing effect but may also average out
quick variations of the measured values and thus produce misleading results.
To avoid errors, observe the following recommendations.
●
Start with a small aperture and increase it only as long as you are certain that the
trace is still correctly reproduced.
●
As a general rule, the smoothing aperture should be small compared to the width
of the observed structures (e.g. the resonance peaks of a filter). If necessary,
restrict the sweep range or switch smoothing off to analyze narrow structures.
Remote command:
CALCulate<Chn>:SMOothing:APERture
Hold
Selects the "Max Hold" (peak hold) or "Min Hold" function for the active trace, or disa-
bles both functions ("Hold Off"). With enabled "Max Hold" or "Min Hold" function, the
displayed trace shows the maximum or minimum values that the analyzer acquired
since the start of the measurement. The "Max Hold" and "Min Hold" traces are real;
they are based on the magnitude of the trace values (the phase values are discarded).
The "Hold" process can be restarted any time using "Restart". It is also restarted auto-
matically when the channel or trace settings are changed so that the previous mea-
surement results are no longer compatible.
Note:
A memory trace is unformatted by definition. Therefore, a "to memory" operation
on a "Hold" trace actually stores the last measured trace data instead of the current
"Max Hold" or "Min Hold" values.
Remote command:
Shift Trace
Functions for shifting the active trace in horizontal and vertical direction.
Stimulus ← Shift Trace
Shifts the active trace in horizontal direction, leaving the positions of all markers
unchanged. The unit of the offset value depends on the sweep type.
Note:
A "Stimulus" shift can be used in Cartesian as well as in polar diagrams. The visible
effect depends on the diagram type:
●
In Cartesian diagrams, the trace is shifted relative to the markers and the x-axis.
●
In complex diagrams, the trace is not affected.
Remote command:
DISPlay[:WINDow<Wnd>]:TRACe<WndTr>:X:OFFSet
Mag / Phase / Real / Imag ← Shift Trace
Modifies all points of the active trace by means of an added and/or a multiplied com-
plex constant.
The units of the constants are adjusted to the format of the active trace. Setting all val-
ues to zero ("Shift Reset") restores the original trace.
The trace points are modified according to the following formula:
Trace Config Softtool
