
8.
e the dynamic range in the
(increasing the incident power and
narrowing the IF bandwidth), press:
. . . .
. . .
Press
i
i
Calibrate and Measure
1.
2.
3.
Remove the DUT and perform a full two-port calibration. Refer to Chapter 5, “Optimizing
Measurement Results.
With the thru connected, set the scale to autoscale to observe the benefits of using swept
list mode.
n
The segments used to measure the stopbands have less noise, thus
dynamic
range within the
frequencies
n
The segment used to measure the
has been set up for faster sweep speed with
more measurement points.
Figure
Calibrated Swept List
Measurement
Reconnect the
and adjust the scale to compare results with the first filter measurement
that used a linear sweep.
n
In Figure 2-53, notice that the noise level has decreased over 10
conllrming that the
noise reduction techniques in the stopbands were successful
n
In Figure 2-53, notice that the
noise in the third segment is slightly lower than in
the
segment. This is due to the narrower IF bandwidth of the third segment (300 Hz).
Making Measurements
Содержание HP 8753E
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