Frequency modulation lab manual

LAB MANUAL EEC DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING 27, Knowledge Park-III, Greater Noida, (U.P.) Phone: website: www.doorway.ru 2 CONTENTS In frequency modulation instantaneous frequency. PCS Lab Manual Page 8 EXPERIMENT - 2 AIM: To study Frequency Modulation and Demodulation. APPARATUS: F.M. Kit, CRO, Connecting Probes. THEORY: In frequency modulation, the amplitude of the carrier wave is kept constant but its frequency is varied in accordance with the amplitude of the audio frequency signal. The. Phase and frequency modulations are techniques that modify the instantaneous phase and frequency, respectively, of a sinusoid in a way dictated by an information signal f.(t) Phase Modulation Here the information signal is placed as a linear term in the instantaneous phase of the carrier. That is f(t) θ()t =ωc (t)+θ0 +kp f (t) ().

Angle modulation provides the improved noise performance. Phase Modulation, and Frequency Modulation are both the modulation techniques analyzed in angle modulation. In this second experiment, we will examine the most common modulation scheme in daily life, namely, the Frequency Modulation, or FM. FREQUENCY MODULATION AND DEMODULATION AIM: To perform the frequency modulation and demodulation using FM kit. APPARATUS REQUIRED: 1. Frequency modulation kit 2. DSO 3. Probes 4. Patch cords THEORY: Frequency modulation is a process of changing the frequency of a carrier wave in accordance with the slowly varying base band signal. Phase and frequency modulations are techniques that modify the instantaneous phase and frequency, respectively, of a sinusoid in a way dictated by an information signal f.(t) Phase Modulation Here the information signal is placed as a linear term in the instantaneous phase of the carrier. That is f(t) θ()t =ωc (t)+θ0 +kp f (t) ().

Experiment No. 2. DSB-SC Modulator and Demodulator. I. AIM: To perform the characteristics of the Balanced Modulator as a. 1. Frequency Doubler. Frequency Modulation (FM). 6. Frequency Modulation using the ACB. 7. Sampling and Quantization. 8. Pulse Amplitude Modulation. AM) modulation, Quadrature Amplitude Modulation (QAM), and Frequency Modulation. The contained, and can be read independent from the lab manual.