R&S
ZVL Getting Started
Basic Tasks
Operating manual 1303.6538.62 - 05 55
To change one of the parameters use one of the following methods:
J Press the SCALE function key on the front panel.
J Right-click the scale section in the trace list and select the parameters from the
context menu.
J Select the parameters from the Trace – Scale menu.
J Use the marker functions (MARKER ––> function key).
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:
J Press the SCALE function key on the front panel.
J Right-click the scale section in the trace list and select Autoscale from the context
menu.
J 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 Ref Value. The reference value defines the radius of
the outer circumference.
J Increasing the Reference Value scales down the polar diagram.
J 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:
J Press the SCALE function key on the front panel.
J Right-click the scale section in the trace list and select the parameter from the
context menu.
J Select the parameter from the Trace – Scale menu.
J 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.
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