Study of Double Sideband Amplitude Modulation Generator

Experiment Name: Study of Double Sideband Amplitude Modulation Generator.

 

Required Apparatus:

        Module ACL [Function generator (1-10KHz/0.1-1KHz); VCD (500KHz-1500KHz); Balanced Modulator]

        Power Supply

        20MHz Oscilloscope

        Connectors

 

Block Diagram:

 




Figure: Amplitude Modulator

 

Input/Output Waveshape:

 



Figure 01: Wave form of Over modulation



Figure 02: Wave form of Under modulation



Figure 03: Wave form of Flat modulation



Figure 04: Message signal form



Figure 05: Carrier signal wave form

 

Discussion:

From this experiment, we learned three types of modulation; Under modulation, Over modulation and Flat modulation. We also saw that if we increase the amplitude of message signal then the amplitude of modulated signal also increases and if we increase the carrier signal then the amplitude of modulated signal decreases.

 

Conclusion:

We were concerned if there were any loose connection while doing the experiment.Because we may get bad wave shape because of it. We checked the connection and made sure they are properly connected and the wave shape was satisfactory









keywords : lab report,eee,Communication Engineering,Electrical Engineering,sideband,double sideband,modulaion,amplitude modulation,amplitude modulation generator,Lab experiments

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