Agilent Technologies E7405A User Manual
Chapter 2
79
Making Complex Measurements
Making Stimulus Response Measurements
11.The knob or the data entry keys can be used to change the N dB
value from
−
3 dB to
−
60 dB to measure the 60 dB bandwidth of the
filter. See
.
Figure 2-7
N dB Bandwidth Measurement at –60 dB
12.Press
N dB Points
(Off) to turn the measurement off.
Measuring Stop Band Attenuation Using Log Sweep
When measuring filter characteristics, it is useful to look at the
stimulus response over a wide frequency range. Setting the analyzer
x-axis (frequency) to display logarithmically provides this function.
stimulus response over a wide frequency range. Setting the analyzer
x-axis (frequency) to display logarithmically provides this function.
Example:
Measure the stop band attenuation of a 10 MHz low pass filter.
1. To measure the response of a low pass filter, connect the equipment
. This example uses a 10 MHz low pass filter.