Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 106 / 813

Basic Tasks R&S
®
ZVA/ZVB/ZVT
1145.1084.12 2.14 E-1
Autoscale
The Autoscale function adjusts the scale divisions and the reference value so that the entire trace fits
into the diagram area. To access Autoscale , use one of the following methods:
Press the SCALE key in the TRACE keypad.
Right-click the scale section in the trace list and select Autoscale from the context menu.
Select Autoscale from the Trace – Scale menu.
Circular Diagrams
The radial scale of a circular (Polar, Smith or Inverted Smith) diagram can be changed with a single
linear parameter, the Reference Value . The reference value defines the radius of the outer
circumference.
Increasing the Reference Value scales down the polar diagram.
Decreasing the Reference Value magnifies the polar diagram.
The Reference Value is indicated in the scale section of the trace list.
To change the Reference Value use one of the following methods:
Press the SCALE key in the TRACE keypad.
Right-click the scale section in the trace list and select the parameter from the context menu.
Select the parameter from the Trace – Scale menu.
Use the marker functions.
The Autoscale function also works for polar diagrams.
Using Marker Functions
Marker functions are a convenient tool for scaling (in particular: magnifying) diagrams without entering
explicit numeric values. You simply place a marker to a trace point and use the marker values to
change the sweep range or move the trace relative to the vertical axis. A mouse makes it easier to
activate (click) or move (drag and drop) markers.