# Lab 3 - 2016 - EE 352 Lab 3 Amplitude...

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EE 352 - Lab 3: Amplitude Modulation/Demodulation - Hardware Duration: 90 mins 3 Hardware Lab (Amplitude Modulation/Demodulation) 3.1 Purpose Analyze conventional DSB and DSB-SC AM modulation and demodulation by implementing basic analogue communication circuits. 3.2 Equipment 1 × Oscilloscope 1 × DC Power Supply 2 × Function Generator IC: 1 × MC 1496 (LM1496) Resistors: 3 × 56Ω, 2 × 750 Ω, 2 × 3K9Ω, 3 × 1KΩ, 1 × 6K8Ω, 1 × 5K1Ω, 1 × 50KΩ Trimpot. Capacitors: 3 × 0,1 μ F Diode: 1N4148 3.3 Pre Lab Tasks 3.3.1 Study about amplitude modulation (AM) and demodulation. 3.3.2 Study about the types of AM and about the differences between them. 3.3.3 Study on the datasheet of the integrated circuit MC 1496. 3.4 Lab Work 3.4.1 Set up the circuit in Figure 1, and check the connections of feed voltages (+12V) , ( - 8V) and the ground connections. 3.4.2 Apply sinusoidal signal with amplitude of 1V (peak to peak) and 500 KHz frequency for the carrier signal. 3.4.3 Apply sinusoidal signal with amplitude of 0 . 4V (peak to peak) and 200 Hz frequency for the message signal.

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