One input to a conventional AM modulator is a 600 kHz carrier with amplitude of 22 V. The second input is a 20 kHz modulating signal that is of sufficient amplitude to cause a change in the output wave of ±9 V. Determine: a. Upper and lower side frequencies. b. Percent modulation. c. Peak amplitude of the modulated carrier and the upper and lower side frequency voltages.

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One input to a conventional AM modulator is a 600 kHz carrier with
amplitude of 22 V. The second input is a 20 kHz modulating signal
that is of sufficient amplitude to cause a change in the output wave of
+9 V.
Determine:
a. Upper and lower side frequencies.
b. Percent modulation.
c. Peak amplitude of the modulated carrier and the upper
and lower side frequency voltages.
d. Maximum and minimum amplitudes of the envelope.
e. Expression for the modulated wave.
Then,
f. Draw the output spectrum.
g. Sketch the output envelope.
Transcribed Image Text:One input to a conventional AM modulator is a 600 kHz carrier with amplitude of 22 V. The second input is a 20 kHz modulating signal that is of sufficient amplitude to cause a change in the output wave of +9 V. Determine: a. Upper and lower side frequencies. b. Percent modulation. c. Peak amplitude of the modulated carrier and the upper and lower side frequency voltages. d. Maximum and minimum amplitudes of the envelope. e. Expression for the modulated wave. Then, f. Draw the output spectrum. g. Sketch the output envelope.
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