5. To terminate the flat line segment by establishing a single point limit, press:
Figure 2-41 shows the flat limit lines that you have just created with the following
parameters:
n
stimulus from 127 MHz to 140 MHz
n
upper limit of -21
dB
n
lower limit of -27
dB
Figure 2-41. Example Flat Limit Line
6.
RI
create a limit line that tests the low side of the filter, press:
248 Making Measurements