Agilent Technologies 8753ET User Manual page 90

Network analyzers
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5. To terminate the flat line segment by establishing a single point limit, press:
ADD
STIMULUS VALUE
LIMIT TYPE
SINGLE POINT
Figure 1-61
shows the flat limit lines that you have just created with the following
parameters:
• stimulus from 127 MHz to 140 MHz
• upper limit of −21 dB
• lower limit of −27 dB
Figure 1-61 Example Flat Limit Line
• To create a limit line that tests the low side of the filter, press:
ADD
STIMULUS VALUE
UPPER LIMIT
LOWER LIMIT
DONE
LIMIT TYPE
ADD
STIMULUS VALUE
DONE
LIMIT TYPE
140
M/µ
RETURN
100
M/µ
−65
x1
−200
x1
FLAT LINE
RETURN
123
M/µ
SINGLE POINT
RETURN
Using Limit Lines to Test a Device
DONE
Making Measurements
1-77

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