Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 246 / 813

Trace Menu R&S
®
ZVA/ZVB/ZVT
1145.1084.12 4.84 E-6
Shift Stimulus Value...
Shifts the active trace in horizontal direction, leaving the positions of all markers
unchanged. The positive or negative offset value for the stimulus variable is entered into
an input field. The unit depends on the sweep type.
Shift Stimulus Value 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 polar diagrams, the trace is not affected, however, markers change their position.
Use a negative offset value to reset a shifted trace to its original position.
Remote control: DISPlay:WINDow<Wnd>:TRACe<WndTr>:X:OFFset <numeric_value>
Shift Response Value...
Modifies all points of the active trace by means of an added and/or a multiplied complex constant. The
constant complex values are entered in the four input fields of the Shift Response Value dialog.
The units of the constants are adjusted to the format of the active trace. Setting all values to zero (Clear
All Values) restores the original trace.
Effect of the constants
The trace points are modified according to the formula displayed in the lower part of the dialog:
The formula and the different constants are adjusted to the different display formats of a trace:
•
The Magnitude factor shifts a dB Mag trace in vertical direction, leaving the phase of a complex
parameter unchanged.
•
The Phase factor rotates a trace that is displayed in a polar diagram around the origin, leaving
the magnitude unchanged.