Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 204 / 813

Trace Menu R&S
®
ZVA/ZVB/ZVT
1145.1084.12 4.42 E-6
Autoscale
Adjusts the Scale Divisions 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 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 circumference.
Autoscale does not affect the stimulus values and the horizontal axis.
Remote control: DISPlay:WINDow<Wnd>:TRACe<WndTr>:Y[:SCALe]:AUTO ONCE
Autoscale All
Adjusts the Scale Divisions 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 Autoscale function. The traces
in the active diagram area are taken into account irrespective of their channel assignment.
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 control: DISPlay:WINDow<Wnd>:TRACe<WndTr>:Y:PDIVision
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 corresponds 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.
•
In circular diagrams (Polar, Smith, Inverted Smith), Ref. Value defines the value of the outer
circumference. Changing Ref. Value enlarges or scales down the diagram, leaving the center
unchanged. The unit is U (units) for all circular diagrams.