Cleveland State University - EEC 470Lab_08

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Lab 08 Experiment 4 AM Modulation and Experiment 6 Am Demodulation Joseph Zito 2663901 Chris Spurlock 2635299 Communications EEC 451 3/26/20 https://www.coursehero.com/file/59952860/Lab-08/ T... his study resource was shared via CourseHero.comExperiment 4 Amplitude Modulation Introduction: Amplitude modulation is a form of modulation where the carrier signal amplitude is changed based on an analog message signal in our case a 2khz sine wave is used from the waveform generator. Pure AM Signals include the carrier frequency, and does not consist of any signals at the message frequency.. Amplitude modulated signals also include the upper and lower sidebands of their spectrum. The extent that a message modulates a carrier is called the modulation index. It is very important in calculating the signals power between the carrier and sidebands. Objective: ● Demonstrate the construction of an Amplitude modulated (AM) signal, and observe how changing the messages amplitude effects the AM signal Data and Questions: Q1: In what way is the Adder module’s output now different to the signal out of the master Signals module’s 2kHz SINE output ? The Amplitude is different. The adder modules output is a the sinewave + a 1VDC output AM = (1VDC+1Vp-p 2kHz Sine wave The output of the adder module shown in figure 1 [Show More]

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