Technical data

428 Chapter 16
Spectrum Analyzer
Using the Spectrum Analyzer
Spectrum Analyzer
Setting the Pass/Fail Limits
The measurement limits setting allows you to alter the value of the upper and lower
test limits. Center segment limits are set in dBm and are absolute limit values. The
first and second segment limit values are set in dB and are limit values relative to the
center segment. The settings you choose define the location of the limit lines
displayed on the screen. These settings will result in a pass/fail flag being displayed
on the screen above the limit line: a red triangle with a “F” is a fail, a green circle
with a “P” is a pass.
You can set a variety of limit configurations to suit your needs: a single upper or
lower limit, an upper and lower limit pair (see Figure 16-2), a segmented upper or
lower limit, or an upper and lower segmented limit mask (see Figure 16-1). You can
specify a maximum of one center segment, two lower segments, and two upper
segments.
Figure 16-1 Segmented Limit Mask