Agilent Technologies FieldFox N9912A - Build from Trace; Limit Options

Data Analysis Features 147
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.
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.
 Then Options.
 Then choose from the following:
o Beep On Off Audible beep sounds when each sweep fails.
o Warning On Off Shows Pass or Fail indication on the display with each
sweep. Data points that fail are highlighted.
o Limit Type
o Offset Shifts the limit line up or down. Enter an offset value using the rotary
knob, the ▲|▼ arrows, or by entering a value with the number keys.