GUI Reference
R&S
®
ZNC
143
User Manual 1173.9557.02 ─ 13
Auto Scale Trace
Adjusts the "Scale/Div" and the "Ref Value" in order to display the entire active trace in
the diagram area, leaving an appropriate display margin.
●
In Cartesian diagrams, the analyzer re-calculates the values of the vertical divisions
so that the trace fits onto approx. 80% of the vertical grid. The reference value is
chosen to center the trace in the diagram.
●
In circular diagrams ("Polar, Smith, Inverted Smith"), the analyzer re-calculates the
values of the radial divisions so that the diagram is confined to approx. 80% of the
outer circumference. The reference value is set to the value of the outer circumfer-
ence.
Auto scale does not affect the stimulus values and the horizontal axis.
Remote command:
Auto Scale Diagram
Adjusts the "Scale/Div" and the "Ref Value" in order to display all traces in the diagram
area, leaving an appropriate display margin. This scale settings are analogous to the
"Auto Scale Trace" function. The traces in the active diagram area are taken into account
irrespective of their channel assignment.
Ref Value = Marker
See
"Ref Val / Max / Min = Marker"
Zoom Active
Enables or disables the current scale settings, including all the numeric entries in the
input fields below. See also "Using the Graphic Zoom" in the R&S ZNC Getting Started
manual.
Scale/Div
Sets the value of the vertical diagram divisions in Cartesian diagrams.
"Scale /Div" corresponds to the increment between two consecutive grid lines. The unit
depends on the display format: dB for display format "dB Mag", degrees for "Phase" and
"Unwrapped Phase", ns for "Delay", U (units) for all other (dimensionless) formats.
"Scale /Div" is not available (grayed) for circular diagrams ("Polar, Smith, Inverted
Smith").
Remote command:
Ref Value
Sets the reference line of a Cartesian diagram or the outer circumference of a circular
diagram.
●
In Cartesian diagrams "Ref. Value" defines the value of the reference line, indicated
by a symbol at the right edge of the diagram area. The color of the symbol corre-
sponds to the trace color. As the "Ref. Value" is varied, the position of the reference
line (Ref. Position) is left unchanged, so that the current trace is shifted in vertical
direction. The unit of the "Ref. Value" depends on the display format: dB for display
format "dB Mag", degrees for "Phase" and "Unwrapped Phase", ns for "Delay", U
(units) for all other (dimensionless) formats.
Trace Settings