Figure 6-78. Combined Effects of Amplitude and Phase Modulation

Using the demodulation capabilities of the analyzer, it is possible to view the amplitude or the phase component of the modulation separately. The window menu includes the following softkeys to control the demodulation feature:

~~~~~;~~~~~

.i:i..:.ic..........iiiii..............L.:...:I....

~~~~~~

. . . . . . .:.., .,.,.;/,-,.,.,. ,,..A

~~~

. . . . . . .

is the normal preset state, h which both the mpl&& ad phase components

of any test device modulation appear on the display.

displays only the amplitude modulation, as illustrated in F’igure 6-79a.

displays only the phase modulation, as shown in Figure 6-79b.

1

i

i

i

i

iii

i

i

i

i

I

(a)Amplitude Modulation Component

(b) Phase Modulation Component

Figure 6-79.

Separating the Amplitude and Phase Components of Test-Device-Induced Modulation

6-144 Application and Operation Concepts

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HP 8753E manual Combined Effects of Amplitude and Phase Modulation, ~~~~~~
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