Keysight N9923A, User Manual, Page: 187 / 276

Keysight N9923-90001 User’s Guide
187
Data Analysis Features
All about Limit Lines
Build From Trace
A limit line can be built from an existing trace. One X/Y point is made from each
measured data point. Then, using an offset value, you can shift the limit line UP
for upper limits or DOWN for lower limits.
Once limit lines have been built from the trace, changes that you make to the
trace, such as frequency range, do NOT change the limits. However, the limit
line properties can be edited just like standard limit lines.
Figure 12-6 A lower limit line (red) built from the trace (yellow) shifted down 5 dB.
How to Build Limit Lines from a Trace
— Select the trace from which limits will be built.
— Press Limit 8 .
— Then Edit Limits .
— Then Build From Trace . A limit line table appears.
— Use the arrows to select ON.
— Use
Offset
to shift the limit line UP or DOWN. Learn how below.
Limit Options
How to set Limit Options
— Press
Exit
if the limit table is visible.
Build from Trace is NOT allowed for traces with more than 1001 data
points.