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FieldFox User’s Guide
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
NOTE
Build from Trace is NOT allowed for traces with more than 1001 data points.
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
o
On Pass
Audible beep sounds when a sweep passes.
o
On Fail
Audible beep sounds when a sweep fails.
o
Off
No audible beep sounds.
o
Warning On Off
Shows
Pass
or
Fail
indication on the display with each
sweep. Data points that fail are highlighted.