VNA Concepts and Features
R&S
®
ZNL/ZNLE
232
User Manual 1178.5966.02 ─ 07
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Gaps between segments are allowed and equivalent to switching off an intermedi-
ate limit line segment.
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Limit lines can be partially or entirely outside the sweep range, however, the limits
are only checked at the measurement points.
The following figure shows a limit line consisting of 3 upper and 2 lower limit line seg-
ments. To pass the limit check, the trace must be confined to the shaded area.
As a consequence of the limit line rules, a DUT always passes the limit check if no limit
lines are defined.
When the sweep axis is changed from linear frequency sweep to logarithmic sweeps,
straight limit lines are transformed into exponential curves. The sweep points are redis-
tributed along the x-axis, so the number of failed points can change.
While "Show Limit Line" is active, the diagrams display all limit line segments.
Operations on Traces
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