Limit Lines; Use Limit Lines; Sa Band Power Marker; Sa Frequency Counter At Marker - Agilent Technologies FieldFox N9912A User Manual

SA Marker Functions
The following Marker Functions are available in SA Mode ONLY:
 Noise Marker
 Band/Interval Power Marker
 Frequency Counter at Marker
 Audio Beep with Marker
Learn more about these marker functions starting on page 82.

All about Limit Lines

Limit Lines are available in CAT Mode, NA Mode, and SA Mode. Power Meter
Mode uses different Limit settings. Learn more on page 112.
Limit Lines are visual representations on the FieldFox screen of the specified
limits for a measurement. With this capability, you can easily compare measured
data versus specifications. In addition, you can enable an audible beep and
display Pass or Fail information for each measurement.
You can have up to 10 Limit Lines for each measurement trace allowing you to
test all aspects of your measurements.
Limit Lines can be saved and recalled with an *.sta file. Learn more about *.sta
files on page 134. They can also be saved and recalled independently from the
Limit softkeys. Learn more on page 131.
Limit Lines and Limit testing are NOT allowed with Smith Chart or Polar display
formats.
A simple Display Line is also available in SA Mode ONLY. Learn more on page
81.
How to Create Limit Lines in CAT, NA, or SA Mode
 Press Limit 8.
 Then Edit.
 A Limit Line Table appears. Use
 On Press
 Type Press
Each Limit Line is constructed by setting the X/Y-coordinates for both the
beginning and end of each line, as in the following image. The X-axis values for
two lines can overlap.
 Start Frequency/Distance X-axis value for start of line.
 Start Amplitude Y-axis value for start of line.
130
Marker=>Stop Distance
o
the value of the active marker. Markers that would no longer appear on the
screen are moved to the new Stop Distance.
hardkeys to create Limit Lines.
to toggle the display of the limit line ON (X ) and OFF (clear).
Enter
to toggle between Upper or Lower. An Upper limit will
Enter
FAIL any measured data point ABOVE the line. A Lower limit will FAIL any
measured data point BELOW the line .
The Stop Distance of the measurement becomes
and softkeys, and Up / Down
Left Right
N9912A FieldFox User's Guide