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Concepts and Features
R&S
®
ZNB/ZNBT
133
User Manual 1173.9163.02 ─ 38
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With a circle limit line centered around the left border of an inverted Smith diagram
(Y = infinity), you can check whether the imaginary part of the admittance (Im(Y),
susceptance) falls below a limit.
4.4.1.4
File Format for Limit Lines
The analyzer uses a simple ASCII format to export limit line data. By default, the limit
line file has the extension
*.limit
and is stored in the directory shown in the "Save
Limit Line" and "Recall Limit Line" dialogs. The file starts with a preamble containing
the channel and trace name and the header of the segment list. The following lines
contain the entries of all editable columns of the list.
Example of a limit line file
The limit line:
is described by the limit line file:
Compatibility with other instruments
The VNAs of the R&S
ZNx and R&S
ZVx families use the same file format. Limit line
files can be interchanged without restriction.
Operations on Traces