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Fm modulation and demodulation experiment pdf

fm modulation and demodulation experiment pdf 19EUEC026 fm modulation. Understanding Frequency Modulation (FM), Frequency Shift Keying (FSK), Sunde’s FSK and MSK and some more The process of modulation consists of mapping the information on to an electromagnetic medium (a carrier). free download here pdfsdocuments2 com. AM is achieved by multiplying carrier and message signals. Dec 20, 2020 · Purchase frequency modulation including pdf epub and mobi for kindle. there are two modulation/demodulation blocks for each of AM and FM, along with. 5 Demodulation Efficiency and Sub-carrier Wave. 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. To understand the theoretical foundations of Analog Communications as well as of Double-Side-Band Amplitude Modulation and Demodulation (DSB-AM) To design the Simulink model of the DSB-AM to analyze each signal in time and frequency domains using time scope and spectrum analyzer Aug 10, 2016 · Phase Modulation, and Frequency Modulation are both the modulation techniques analyzed in angle modulation. 5, and 10. Projects associated with this application note can be downloaded from the 'Related Files' section below. ” International Journal of Reconfigurable Computing . This experiment includes the simulation and implementation of both FM modulator and demodulator. The demodulation circuit is used to recover the message signal from the incoming AM wave at the receiver. EXPERIMENT 1. Ideally, an Experiment-8 1. The modulation takes place by varying the three parameters of the sinusoid carrier. 16. To demodulate a Frequency Modulated signal using FM detector. The spectra of tone-modulated FM signals are analyzed as well. Apparatus: Sl. 3 years, 10 months ago. Although useful in many applications, phase locked loops perform FM demodulation in a . • coherent and non-coherent demodulation, and. The FM output for a square wave looks like Frequency Shift Keying (FSK). RESULTS: FDM modulation and demodulation are verified in the hardware kit and its waveforms . 3) Zero-crossing detector. Frequency Division Multiplexing & De multiplexing 6. Copy of FM Modulation and Demodulation Circuit. 2 Suppressed carrier amplitude modulation (double sideband). Modulation and demodulation hold dominant positions in communication. Pulse Position Modulation & Demodulation 9. To generate frequency modulated signal and determine the modulation index and bandwidth for various values of amplitude and frequency of modulating signal. Frequency Modulation & Demodulation 6. Q2. Vegestial side band modulation (VSBM). Become familiar with Bessel Function. Demodulation is the reverse process of modulation. – A noncoherent detector has only one input, namely, the modulated signal port. Study of AM waveform and spectra. 1 Communication and Modulation. • Implementing an amplitude demodulator with diode. In this experiment we will introduce the operations of phase discrimination method as demodulation. 2 : FM Demodulator. AM modulation at a carrier frequency, kc, specified by the student. 1 Study of AM transmitter and calculate of modulation index of AM wave by envelope method. To study amplitude demodulation by linear diode detector 3. Techniques in Virtual Instrumentation and Remote Lab . Pulse Amplitude Modulation & Demodulation 7. In the lab, I do testing on my projects that involves with the lab . 2011, No. • AM, DSB-SC, QAM, SSB, and FM implementations using . 4. In theory, an ideal frequency modulation (FM) detector is a device that produces an output that is proportional to the instantaneous frequency of the input. - LAB Manual Frequency Modulation Experiment 8 Experiment 2 Objectives : By the end of this experiment, the student should be able to: 1. Experiment 7: Frequency Modulation and Phase Locked Loops . 4 F. 1) Slide 28 . (a) Determine the values of Am required to provide a modulation index: fl = 0. Prelab 1 - AM Modulation - Prof. Apply Modulated FM signal to demodulator. VARYRING MODULATION INDEX m =Vmax – Vmin / Vmax + Vmin. Apr 05, 2015 · Check Pages 1 - 6 of Laboratory Exercise Amplitude Modulation and Demodulation in the flip PDF version. AMPLITUDE SPECTRUM Modulation produces two new components called sidebands, at frequencies above and below the carrier The spacing in frequency between carrier and sidebands is equal to fm (the modulating frequency) Bandwidth requirement : 2 fm. Receiving frequency-modulated radio waves is typically more difficult . AM) modulation, Quadrature Amplitude Modulation (QAM), and Frequency Modulation. The PAM modulator and demodulator circuits were set up and the waveforms were plotted. Upon completion of the experiment, the student will: Understand ANGLE modulation concept. b. Index Terms—FM;LSTM; SDR; Deep Learning; end-to-end learning; amplitude noise; phase noise; PESQ. Dutton - EE133 - Winter 2004 1 EE133 - Lab 1 Amplitude Modulation and Demodulation 1 Lab Notes • A Word about Power: Remember that the SA612 is not rated for 9V. That design wasn't meant for passing frequencies high enough to be able to pass an audio file, e. ts spé terminale s specialité physique chimie. Modulation is the process of altering the characteristics of the amplitude, frequency, or phase angle of the high-frequency signal in accordance with the instantaneous value of the modulating wave. Note that this is on the very low end of the recommended voltage range. Quadrature demodulation can be used to make an AM demodulator that is compatible with lack of phase synchronization between transmitter and receiver. 3 To study and perform Pulse Amplitude Modulation and Demodulation. Apparatus required: Name of the Specifications/Range Quantity Physics 404 Modulation & Demodulation Lab Page 4/8 Physics Department, UIUC B: FM To obtain a frequency modulated signal we fix the amplitude and let the time derivative of the phase, d φ dt, vary with the modulation frequency. Name of Experiment Page No. 2 FM Spectrum (cont. Use the RC-LPF in the UTILITIES module. Full (IQ branch) Demodulation of a QPSK Signal; Line Code Decoding and Hard Decision Making; DPSK Modulation and Demod with a Noisy Channel; FM Demodulation using the Phase-Locked Loop; Signal constellation Diagrams; Vol. Spectral Characteristics of AM &FM 8. Link the modulator-demodulator circuits and observe signal progression from Input to the . Feb 08, 2021 · Modulation and demodulation process is the main process behind the communication system. Build simple FM demodulator by using frequency discriminator 2. The amount by which the signal moves up and down is important. HIGH FREQUENCY. EXPERIMENT TITLE: To perform the experiment on Amplitude modulation and . First, since FM only changes the frequency and not the amplitude of the carrier w ave, FM receivers can be built to ignore amplitude (voltage) changes. An envelope detector is a simple and yet highly effective device that is well suited for the demodulation of AM wave, for which the percentage modulation is less than 100%. Amplitude Modulation & Demodulation 2. modulation. Demodulation is utilized to regain the original message signal. FM demodulation in V93000 will also be briefly introduced. demodulate or detect the signal. Demodulation prerequisites demodulator to recuperate the original signal. INTRODUCTION. A frequency modulation (FM) waveform can be . Experiment (4) Frequency Modulation and Demodulation Preliminary discussion A disadvantage of the AM, DSBSC and other form of Prelab 1 - AM Modulation - Prof. SOLVED. In frequency modulation, the basic requirements of transmission process are satisfied, for example, requirement of power, multiplexing, portability and size of antenna. If the modulation index is greater than unity, the ca rrier wave becomes over modulated. Dutton - EE133 Winter 2004 1 EE133 - Prelab 1 Amplitude Modulation and Demodulation 1 Introduction This week we will be taking a look at the amplitude modulation (AM) scheme. Frequency Modulation. Ece 489 Lab 1 Amplitude Modulator And Demodulator. The frequency deviation is set to 50 Hz. Last Modified ; fsk modulation-demodulation The demodulator input has a 0. Refer to the circuit diagram in figure 7-6 or figure ACS7-2 on ETEK ACS-3000-04 module to produce the demodulated FM signal as the signal source. Download this lab at . dsdsdsdsd1053. 11-12 Experiment No-5: To study Pulse Position Modulation and Demodulation. fc >>fm 2. Copy of FM Modulation and Demodulation Circuit (1) dsdsdsdsd1053. we get t[n] = � kx ∑ k=−kx A ke jk Ω 1 n ��1 2 (e c1 +e− 1) � = 1 2 . VI Snippet of Amplitude and Frequency modulation using ni USRP Configuration USRP is wide band MHz receiver and centered around 93. by sample and hold circuit 7. t. M. (old) Frequency Discriminator (Differentiator) An FM signal has the following form ( ) cos. Theory and background: 1. Select music, speech, microphone or take your own audio file. An ideal Frequency Modulated (FM) signal discriminator's output is pro-. To study and perform Frequency Modulation and Demodulation. In this second experiment, we will examine the most common modulation scheme in daily life, namely, the Frequency Modulation, or FM. 1 Objective This experiment deals with the basic of Single Side Band Suppressed Carrier (SSB−SC) modulation, and demodulation techniques for analog commu-nication. To study PLL 565 as frequency demodulator 5. Since the amplitude is kept constant, FM modulation is . The information bearing signal (the modulating signal) changes the instantaneous frequency of the carrier. frequency modulation theory time domain frequency. Verification of Sampling Theorem. To study the operation of Amplitude Modulation by observing the AM wave and to measure it‟s modulation index for various modulating voltages. PRODUCT MODULES FREQUENCY MODULATION AND DEMODULATION RECEIVER TRAINER CODE 400-003 FREQUENCY MODULATION AND DEMODULATION TRANSMITTED TRAINER CODE 400-004 Experiment 1: Measurement of FM Receiver Signal Waveforms. In telecommunications and signal processing, frequency modulation (FM) is encoding of information on a carrier wave by varying the instantaneous . A device that can do both operations is a modem. PCM modulation is a kind of source coding. modulation circuit consists of a 555 timer operating in the astable mode, implementation of fsk modulation and demodulation using cd74hc4046a the hc hct4046a pll with vco is a high speed cmos ic designed for use in general purpose pll applications including frequency modulation demodulation discrimination synthesis and multiplication, hi Dr. To study the amplitude modulation and demodulation and to calculate the . modulation d amplitude — wikipédia. DSO 3. The particular case of a sinusoidal message signal . 2:Output of FM Modulation Using Simulink 3. 1 1 FM- Frequency Modulation PM - Phase Modulation EELE445-14 Lecture 30 DSB-SC, AM, FM and PM [] = ∫−∞ = ± = + = t f p jD m d c jD m t c c c c g t A e g t A e g t A m t jm t Frequency modulation consists of encoding information onto a carrier signal by varying the frequency of the carrier. The connections are given as per the block diagram. We only need a few components to achieve the PCM demodulator. EXPERIMENT 8 – AMPLITUDE MODULATION AND DEMODULATION. It has many advantages over AM. 28. Power supply 4. So, its magnitude is constant with value of . Study of Phase shift Keying modulator and demodulator. Learn how to build F M demodulator. phase shift keying psk modulation code in matlab. Part 1. An envelope detector is a simple and yet highly effective device that is well suited for the demodulation of AM wave, for which the percentage modulation is less then 100%. As an example the signal may have a . The HC/HCT4046A, PLL with VCO is a high-speed CMOS IC designed for use in general-purpose PLL applications, including frequency modulation, demodulation, discrimination, synthesis, and multiplication. This modulation is very useful in radio waves transmission and it is an essential element in several digital transmission coding schemes. Modulation is the process of transforming a baseband message to a form suitable for Fig. Analyze and generate A. zurich mfli user manual pdf download. Slide 22 Experiment 8. In radio communications, single-sideband modulation ( SSB) or single-sideband suppressed-carrier modulation ( SSB-SC) is a type of modulation used to transmit information, such as an audio signal, by radio waves. Date Created. Adjust the amplitude of the square wave to obtain a peak frequency deviation of 1 kHz. EXPERIMENT #8 FREQUENCY MODULATION INTRODUCTION: Frequency modulation, or FM, is an important method of impressing information on a carrier. As stated earlier, an envelope detector has been used here for demodulation. The meaning of source coding is the conversion Feb 08, 2021 · Modulation and demodulation process is the main process behind the communication system. The analog cell phone systems use FM as the modulation scheme. Physics 404 Modulation & Demodulation Lab Page 4/8 Physics Department, UIUC B: FM To obtain a frequency modulated signal we fix the amplitude and let the time derivative of the phase, d φ dt, vary with the modulation frequency. SSB-Sc Modulator & Detector (Phase Shift Method). V. MIET, ECE . Frequency Modulation Frequency modulation is realized by varying signal frequency in accordance with the modulating signal or message, as in Figure 1. Circuit diagram Figure 2: FM demodulator circuit. Given a message and a carrier signal, this lab report uses MATLAB todemonstrate the process of frequency modulation and demodulation of the message using a . Apr 6, 2015 . The design equation is f0 = 0. Please see the Fundamentals of Analog Communications section as discussed in the first experiment as a . Motilal Nehru National Institute of Technology. A . 2 FM Demodulation Using Slope Detection One type of conventional analog FM demodulation is achieved by determining the instantaneous frequency of an FM generated signal. View lab5. ECGR 3156 Electromagnetic and Electronic Devices Laboratory. 2012 Solution: This application note is designed to show FM data transmission and modulation using some common test instruments. ENS 203- Amplitude Modulation and Demodulation Lab 6 Radio Experiment Meric Ozcan After you configure the radio as specified in your lab sheet, you will test your radio’s operation with a test signal from the function generator which is capable of producing Amplitude Modulated (AM) Signal. EEP306 LAB REPORT AMPLITUDE MODULATION SUBMITTED BY:GROUP3 Umang Gupta (2010EE50564) IndraBhushan (2010EE50548) VivekMangal (2010EE50566) Jitendra Kumar Meena (2009EE50483) 12-9-12 Experiment. FETs and Amplitude Modulation/Demodulation Introduction In this experiment we will build an AM radio transmitter. FM Detector Demodulators The FM detector demodulator treats the FSK signal as a simple FM signal with binary modulation. Detailed experiments documented in the ETT-101 Volume 3 Lab Manualinclude: • QPSK modulation and IQ-branch demodulation in a noisy channel; • Signal Constellations. Quadrature demodulation uses two reference signals separated by 90° of phase, along with two multipliers and two low-pass filters, to generate I and Q demodulated waveforms. BPSK - Modulation - Advanced BPSK - Demodulation with BER Carrier Acquisition - PLL DPSK Modulation - Advanced DPSK Demodulation with BER DSB-Modulation DSB-Demodulation EnvelopeDetection EyePatterns FM, by VCO & Harmonic Multiplier FM - Demodulation by Zero Crossing Counting & PLL FSK - Demodulation 2 methods/BER FSK-Modulation GFSK - Mod and . SSB Demodulator Using a Hilbert Transform (cont. Bhuvanesh10. Each peak in the output is local FM station. In this technique the amplitude of a high frequency signal is varied corresponding to the variation in the amplitude of the low frequency modulating signal. The filter is then followed by an AM detector (Experiment #4) and the modulation signal is recovered. The In modulation, a message signal, which contains the information is used to control the. When the audio signal is modulated onto the radio frequency carrier, the new radio frequency signal moves up and down in frequency. the circuit is the FM modulator. c, generates a 1 kHz sinusoid from a wavetable of length D = 4000. 3 Discriminator (cont. Objectives: • To demonstrate the general properties of frequency-modulated (FM) signals. The modulation index (m) of an amplitude modulated signal is defined by the following . Using MATLAB m-file and simulink to implement FM modulation and demodulation. φ(t) =ω ct +∆φsinω Mt ω(t) = d φ dt =ω c +∆ωcosω Mt V(t) =sin(ω ct +∆ωcosω Mt) (2) ∆φ≡ ∆ω ω 1 Frequency Modulation (FM) 1. 6a. experiment with “real” signals and systems. FM Modulation and Demodulation Circuit (1) gowthamen2002. 3 Bandwidth Required for Frequency Modulated waves . . Experiment No. 1. FM transmitter. View Exp-4-FM. S. Observe the amplitude modulated waveform &. 02 frequency modulation and demodulation, Study notes for Digital & Analog Electronics. Lab Work: leading the student on how to run the experiment. Apr 11, 2012 · MODULATION AND DEMODULATION Baseband input x[n]: shaped pulses to band-limit signal Carrier signal Transmitted signal t[n]: “mix” (multiply x[n] and carrier) Figure 14-4: The two modulation steps, input filtering (shaping) and mixing, on an example signal. Demodulation is the process of extracting the original information signal from a modulated carrier signal. As the amplitude of the Experiment 5: Frequency Modulation In this experiment, the generation of frequency modulated signals by the direct method and the demod-ulation of the message signal using a phase-lock loop circuit are considered. PDF | This report will discuss an analog method to modulate signals. Implementing an amplitude demodulator with a product detect . SSB-SC Modulation & Demodulation 4. The example, shows how the FM Modulator Baseband and FM Demodulator Baseband blocks are used to modulate and demodulate a sinusoidal signal. dB o 1 Amplitude Modulation Frequency Modulation dB o 1 Amplitude Modulation Frequency Modulation Filter Slope AM Modulation Signal (+ AM Noise) (+ AM Noise) FM Figure 6: FM detection using a slope detector. The frequency variations are converted into voltage for the radio receiver in demodulation. amplitude of the received signal but in an FM receiver, the demodulator is only . (t) 1. Connect the EXPERIMENT 5 Frequency Modulation 1 Objective To understand the principles of frequency modulation and demodulation. In most media for communication, only a fixed range of frequencies is available for transmission. Describe phase demodulation circuit operation for the peak, low-pass filter, and conversion detectors. It does this by combining a phase detector, a low-pass filter (aka “loop filter”), and a voltage-controlled oscillator (VCO) into a . Demodulating FM signal using FM to AM conversion discriminator . cutoff frequency of to recover original signal as demodulated. Before anyone gets too excited about this, let me point out three impor- The frequency sensitivity of the FM-modulator is 20 kHz/V. , intelligence signal). 2 Theory 2. sequences of 1's and 0's. Figure 5–9 FM with a sinusoidal baseband modulating signal. switches for the fault simulation. In this lab, you will study. We recommend that you power it up with 4. angle-demodulation by simulating a specific input signal scenario. 1 PM Demodulator Assume first that the input signal s ( t; Φ) is phase modulated and a ( t ) = A = constant. There are three types of modulation: AM, FM, and PM. The Messages. To Study Frequency Modulation & determine its . The following program, sinex. 6. 1 Power spectra for signals in the modulation and demodulation processes. Introduction: where the theory of the subject is reviewed. The computational expense of this approach depends upon the particular modulation format and demodulation algorithm being implemented. using switching method b. Jan 14, 2015 . ) This demodulator requires taking a Hilbert transform but does not require filtering out terms at twice the carrier frequency. consider that the modulating signal is a sine wave of frequency ωm given by, em = Em cos ωm t . This project covers amplitude modulation and demodulation. PLL as FM Demodulator 7. • For a signal modulated with an angular modulation, we must use an FM demodulator or a PM demodulator. Build simple FM demodulator by using frequency discriminator. 7. Upon completion of the experiment, . No Name of the component Specifications or range Quantity 1 Amplitude Modulation and Demodulation . Any notes or screenshots taken can be used as sources. before the modulation process the carrier frequency is followed the envelope of . hamexam org extra question pool. Pre-Lab Theory. FM transmitter and receiver kit 2. Guide students to gain a working understanding of theories such as demodulation, bandwidth, and Carson's rule. In modulation, a message signal, which contains the information is used to control the. monostable and astable in monostable mode time delay of the pulses can be precisely controlled by an, circuit design fm demodulation frequency modulation fm is a technique in which the frequency of a transmitted waveform is varied according to the variations in the message wave the fm is a very popular technique since they are widely used by the fm Picture 1. 3 PULSE WIDTH MODULATOR AND DEMODULATOR AIM: To set up pulse width modulator and demodulator circuits and to observe and . Sub Code/Name: BEC5L3-COMMUNICATION ENGINEERING LAB-I . amp answers, m group 50webs, lab 6 fm modulation university of texas at dallas, digital signal processing lab viva questions basics ece, experiment 1 amplitude shift keying srm institute of, experiment wise viva questions pulse code modulation, es442 lab 6 frequency modulation and demodulation, teo224 analog communication lab, analog communications Pulse Code Demodulation will be doing the same modulation process in reverse. AMPLITUDE MODULATION PROBLEMS PDF NZKSEEPDF. Experiment 1 : LM565 FM demodulator 1. Frequency Modulation (FM). A PLL can “lock onto” the frequency of an incoming waveform. One way to communicate a message signal whose frequency spectrum does not fall within that fixed frequency range, or one that is otherwise unsuitable for the channel, is to alter a transmittable signal according to the information in your message signal. 6-8 Experiment No-3: To study Pulse Amplitude Modulation and Demodulation. PULSE MODULATION: Pulse Width Modulation . Frequency Doubler. This paper audits FM demodulation using discriminator circuits, and the FM–AM conversion using a conventional single-tuned, double-tuned and staggered-tuned circuit is discussed. Pulse Code Modulation (PCM) Objectives . Dept. measure modulation index. 1) Slide 23 Experiment 8. In this experiment, another widely used modulation technique will be introduced: Frequency Modulation (FM). Frequency modulation signal spectra show sidebands for sinewave modulation. 5 MHz. To run the model, open the example by entering fmmoddemod at the MATLAB® command prompt. Frequency modulation (Barry Duncan,2008) In order to use the modulation on an FM signal, also it is necessary to extract the modulated signal, i. Figure 1: Frequency modulation . You will model the PLL, and recover the message from the FM signal. FM Modulation and Demodulation Goal: The goal of this experiment is to become familiar with FM modulation and demodulation. You will also study the influence of the frequency deviation constant on the signal bandwidth. Introduction 1. 2 Members. demodulation all about circuits, experiment topic fm demodulator kmutt, phase locked loop fm demodulator docsbay, frequency modulation amp demodulation techniques scientech2203, phase shift keying modulation and demodulation trainer, www physics utah edu, demodulator circuit page 2 other circuits next Ans. As liter-. In particular, we discuss amplitude and frequency modulation. 8 - Single Sideband (SSB) modulation & demodulation . Frequency Modulation (FM) - the process of combining the message signal . Name of the Experiment . Spectrum analyzer and analysis of AM and FM signals. Initialization: Copy the initialization files for the experiment into your Matlab working . In this process, the amplitude of the carrier signal is varied so that it is proportional to the instantaneous amplitude of the modulating . Find more similar flip PDFs like Laboratory Exercise Amplitude Modulation and Demodulation. To demodulate a Frequency Modulated signal using FM detector. Which type of modulation is used in TV transmission? Ans. Lab 1 - AM Modulation - Prof. FM demodulation using PLL. 1 and FM in Section 14. The input data is a sine wave of frequency 4 Hz and amplitude 1 V. AMPLITUDE MODULATION. To understand the measurement and adjustment of AM demodulator. an example of simplex type of communication. The information is contained in the frequency A (or angle) of the FM . 3 experiments require the ETT-101-20 or ETT-101-21 add-on boards FM modulation and Demodulation circuit edaboard com June 7th, 2019 - i want a simple FM modulator and demodulator circuit with Fc 250kHz using 555 timer ic Im unable to find working circuits on google Updated I want a simple FM modulator and demodulator circuit with Fc 250kHz using 555 timer ic or without any Mar 16, 2019 · Multiple Choice Questions and Answers on Modulation and Demodulation In addition to reading the questions and answers on my site, I would suggest you to check the following, on amazon, as well: Question Bank in Electronics & Communication Engineering by Prem R Chadha Apr 17, 2020 . FM receiver carrier frequency: 88 MHz ~ 108 kHz. The modulated carrier signal is sent to the receiver where demodulation of the . 2 Experiment 8. • Measuring and adjusting an amplitude modulator circuit • Understanding the principle of amplitude demodulation. Generation and demodulation of DSB-SC signal. 1 Experiment AM: Amplitude modulation and demodulation 1. Residual FM noise measured at the modulator output using VSA analog FM demodulation. Experiment . Digital Modulation. e. 1 Objective This experiment deals with the basic performance of Frequency Modulation (FM). FM was invented and commercialized after . Abstract. Thefirst useof AM fortransmissionofvoice signalsbyradiocan be traced tothebeginning of the 20th century. 2. Once a signal has been modulated, information is retrieved through a demodulation process. • Each radio station, within a certain geographical region, is designated a carrier frequency around which it has to transmit • Sharing the AM/FM radio spectrum is achieved through Frequency Division Multiplexing (FDM) 101 it will allow a complete QPSK modulation / QPSK IQ-branch demodulation experiment to be implemented. In this video, Frequency Modulation and Demodulation Experiment is fully explained and described and is done in FM Trainer Kit (Scientech ST 2203 Kit) where . For example, analog video transmission for television makes use of a combination of both AM and FM. Note: The m-file uses the function cumsum of MatLab for FM modulation. To study Pulse Amplitude Modulation a. Q7. DSB-SC Modulation & Demodulation 3. Create the simulation of the FM demodulation signal obtained from FM modulation in the way described in Figure 4 and plot the signal. FM Modulation/de-modulation Circuit: I got the idea for this circuit from one of my professors. 1) Slide 25 Experiment 8. demodulator, where it is used to follow phase or frequency modulation and (2) to. Pulse Width Modulation & Demodulation 8. Experiment 2: Measurement of Tunable 2. In any radio that is designed to receive frequency modulated signals there is some form of FM demodulator or detector. ThalangeAssociate Professor,Electronics and Telecommunication Engineering,Walchand Institute of Technology, Solapur Acces PDF Pulse Amplitude Modulation Demodulation Lab Manual Pulse Amplitude Modulation Demodulation Lab Manual As recognized, adventure as competently as experience virtually lesson, amusement, as capably as bargain can be gotten by just checking out a ebook pulse amplitude modulation demodulation lab manual also it is not directly done, you could endure even more all but this life, with . Demodulation signal by diode 3 Study of FM and calculate of modulation index of FM wave. 1. Single Side Band Demodulation Objective: In this experiment we will observe SSB Demodulation The experiment is setup as per the above block diagram. Frequency Division Multiplexing & Demultiplexing 5. Q8. Jan 03, 2021 · But Armstrong used frequency modulation (FM) as it has advantages over AM (amplitude modulation) signal. T1 make a model of the PLL of Figure 1. modulation fm with modulation, need fm demodulator code for matlab google groups, amplitude modulation and frequency modulation using matlab, matlab fm modulation signal processing stack exchange, experiment 6 frequency modulation fm generation and, fsk using matlab code matlab and simulink, PULSE MODULATION Study of Pulse Amplitude modulation Experiment No 04 6 Study of Pulse Amplitude modulation & Demodulation 7 Study of PAM Using DC Input The first Lab objective is to familiarize you with, apparatus which we will be using Download Lab 6 Pam Pulse Amplitude Modulation Demodulation On Lab 6: PAM Receiver. 2 is the circuit diagram of PCM demodulator. Frenzel Jr,2016). bpsk modulation and demodulation real time experiment Modulation prerequisites a modulator for the mixing of the two signals. Cumsum models the integration operation for a digital signal, which means that the variation. AMPLITUDE MODULATION Objective: Modelling of an AM signal . FM demodulation basics. pdf from CS TNE20002 at Swinburne University of Technology . We will connect a buffer (µA741) to the PCM demodulation data terminal at pin 27 of . Modulation passbandA Analog modulation AM FM PM QAM SM SSB Digital modulation ASK APSK CPM FSK MFSK MSK OOK PPM PPM PSK QAM SC-FDE TCM WDM Hierarchical modulation QAM WDM Spread spectrum CSS DSS SFHSS THSS See also approach capability codes Demodulation Line The demodulation circuit is used to recover the message signal from the incoming AM wave at the receiver. The illustration of FM demodulation is shown in Fig. INTRODUCTION In chapters 1 and 2 you studied how to apply intelligence (modulation) to an rf-carrier wave . Analog Communication Lab + LIC Lab (10ECL58). 2, 1 and 5; use these rms-values to calculate the rms-values of the FM signals. 3-5. Laboratory Exercise Amplitude Modulation and Demodulation was published by on 2015-04-05. Patch cords Procedure: 1. Aug 12, 2021 · Demonstration of frequency demodulation Experiment and Results Show and clarify your results during the experiment. • quadrature modulation,. Lab 1: Amplitude Modulator and Demodulator Objective. Experiment 2: Amplitude Modulation and Demodulation Objective Amplitude modulation (AM) is one of the simplest methods for modulating a sinusoidal carrier wave. As FSK is really just FM (with a digital message), it can be recovered using any of the FM demodulation schemes. AMPLITUDE DEMODULATION The process of detection provides a means of recovering the modulating Signal from modulated signal. Various techniques can be used to demodulate the FM signal. Demodulation starts with the decoding process, during transmission the PCM signal will be affected by noise interference. Describe fm demodulation circuit operation for the phase-shift and gated-beam discriminators and the ratio-detector demodulator. To study amplitude demodulation by linear diode detector. Using MATLAB m-file and simulink to . It is known as the deviation and is normally quoted as the number of kilohertz deviation. To study and perform Pulse Position 6 To study and perform Pulse Code Modulation and Demodulation. PAM generation and Reconstruction. Learn how to generate FM signal. Probes 4. DSB-SC Modulator & Detector 4. • Implementing an amplitude demodulator with a product detector. with or without amplitude or frequency modulation. Demodulation is achieved by sampling the AM signal at carrier frequency. The next part of the experiment lets you do this. The modulator shown on Slide 7-6 is also a block diagram for a demodulator that implements the formula at the bottom of the previous slide if Objective: FM modulation and demodulation Description: In this experiment you will design a FM modulator and a derivative based FM demodulator. Demodulation: The Phase-Locked Loop. (FM). Scientech TechBook 2203 Frequency Modulation and Demodulation Techniques is a comprehensive learning solution specifically designed to study basic operation as well as to provide conceptual and step by step understanding of frequency modulation and demodulation techniques through observation of waveforms at various test points. and frequency modulation. 1 Amplitude modulation and demodulation 4. Distinguish between different types of FM Signal 4. FREQUENCY MODULATION AND DEMODULATION AIM: To perform the frequency modulation and demodulation using FM kit. Apr 26, 2015 · FM Demodulator Classification • Coherent & Non-coherent – A coherent detector has two inputs—one for a reference signal, such as the synchronized oscillator signal, and one for the modulated signal that is to be demodulated. 2: Illustration of a . necessary to demodulate an FM signal needs a frequency-to-voltage . 1- Introduction to PCM and Analog-to-Digital Conversion. The main difference between both modulations is that in frequency modulation, the frequency of the carrier wave is modified as per the transmit data, while in amplitude modulation, the carrier . 0Kohm resistor, 1. Frequency modulation and demodulation. Frequency modulation consists of encoding information onto a carrier signal by varying the frequency of the carrier. Demodulation of AM signal. modulation and demodulation process. topics familiar to all students, such as AM and FM broadcasting, through to the latest. Experiment Program Outcomes Attained Program Specific Outcomes Attained 1 LTI system and its response PO1, PO2 PSO1 2 Amplitude modulation and demodulation PO1, PO2 PSO1 3 DSB-SC Modulator & Detector PO1, PO2 PSO1 4 SSB-SC Modulator & Detector (Phase Shift Method) PO1, PO2 PSO1, PSO2 5 Frequency modulation and demodulation. An important concept in the understanding of FM is “frequency deviation”. In this experiment, we shall consider demodulation using envelope detector. 3. high “A New High-Performance Digital FM Modulator and Demodulator for Software-Defined Radio and Its FPGA Implementation. • Designing an amplitude modulator using MC1496. Frequency Modulation and Demodulation !! Objective 1. 5V (and remember to use bypass capacitors). Adjust variable resistor VR1 so that the frequency at the modulated FM. FM demodulator circuits are found in any receiver that uses FM: broadcast receivers, two way radios like walkie talkies and handheld radios that use FM, and any receiver where frequency modulation is used. m is designed to show the frequency variation more clearly in the time domain. Demodulation (Phase discriminator/Ratio detector method. 1 FM Modulator (cont. We discuss AM in Section 14. 8. 2 Suppressed carrier amplitude modulation (double sideband) A general sinusoidal signal can be expressed as f(t) A(t) cos (t) . Oct 7, 2017 . Yet, AM continues to be used today in many communication applications 5 PAM Generation and Demodulation 27 6 DSB-SC using multiplier IC AD633 33 7 AM generation and Demodulation using AD 633 39 8 FM using 555 47 9 FM - Modulation and Demodulation using PLL 51 10 Mixer Circuit using BJT 57 A Quick Reference: Component Details 61 A. many types of circuits used in communication systems such as FM to AM conversion, phase-shift discriminators and phase-locked loop (PLL) frequency demodulator. How . FM MODULATION • RECEIVE PATH (always running) 256kS/s from USRP Low Pass Filter 64kS/s FM Demodulator 32kS/s Squelch 32kS/s . Download EXPERIMENT 1: AMPLITUDE MODULATION PROCESS PDF for free. Figure 4. The student is required to implement the mathematics of the modulator and demodulator to MATLAB code. 1) Slide 26 Experiment 8. Instructions. To study frequency modulation and determine its modulation factor 4. 3/RC, where R = R1 + R2. Radio modulation via wave amplitude Fig 1: An audio signal (top) can be carried by a vector signal using AM or FM methods. Communication Engineering Lab (KEC-451). Types of Modulation 6 Flynn/Katz 7/8/10 Analog Modulation Amplitude Modulation, AM Frequency Modulation, FM Double and Single Sideband, DSB and SSB Digital Modulation Phase Shift Keying: BPSK, QPSK, MSK Frequency Shift Keying, FSK Quadrature Amplitude Modulation, QAM 1 1 FM- Frequency Modulation PM - Phase Modulation EELE445-14 Lecture 30 DSB-SC, AM, FM and PM [] = ∫−∞ = ± = + = t f p jD m d c jD m t c c c c g t A e g t A e g t A m t jm t 142 - A2 FM demodulation with the PLL EXPERIMENT FM demodulation There is an FM signal at TRUNKS. No. That is why gear fault frequency can be traced via amplitude demodulation in . The index of modulation can be varied by changing Am. PROBLEMS SLIDESHARE. the FM Modulator preset & observe the effect of that at Demodulator. Amplitude modulation and frequency modulation are used to transmit data using the method of modifying a carrier signal. 1 Single Sideband Suppressed Carrier Mod-ulation 1. The purpose of this lab is for you to gain familiarity with the concepts of amplitude modulation and . FM demodulation, on the other hand, is the inverse process of reverting . signal-processing and digital systems. pdf from NEW 2019 at Arizona State University. (i) Frequency modulation and demodulation (ii) Spectrum analysis of FM 3. Frequency Modulation and Demodulation. APPARATUS REQUIRED: 1. GATE NODIA AND COMPANY. demodulation tended to be FM detector types so they will be discussed first. A double sideband large carrier waveform is produced using a simple switching modulator circuit. Vol. demodulator circuit other circuits next gr. I. Ideally, an Experiment # 3 Amplitude Modulation and Demodulation −→ −→ 1 Purpose Amplitude modulation (AM), still widely used in commercial radio today, is one of the simplest ways that a message signal can modulate a sinusoidal carrier wave. A. 1uF . This experiment deals with the basic performance of Frequency Modulation. Figure 9 shows a functional block diagram for an FM detector -type remove out -of -band interference and then limited to remove AM inter ference. Frequency modulation kit 2. Frequency Modulation (FM) Frequency modulation is the process of varying the frequency of a carrier wave in proportion to the amplitude of a baseband signal. Ms. 13-14 Experiment No-6:To study Pulse Code Modulation and . ABSTRACT. MIET/ECE/COMM. Figure 5: Coherent PM, FM and AM demodulation by APLL. Experiment 5. experiment 8 fsk demodulator site iugaza edu ps. Aug 18, 2013 · 1. Functional blocks include: MULTIPLIER, TUNEABLE LPF, and 1. faults do not lead to FM phenomenon only, but also am plitude modulation (AM) effect (to be explained in Section II). Communication is the process of transmitting a message from one location to another though some medium. Physics Department, UIUC. Verification of Sampling Theorem 9. Part List 1uF capacitor (2); 10. DEMODULATION: PROCEDURE: • Rig up the circuit as per . Setting and measuring the depth of modulation. 2 Theory: Amplitude modulation (AM) is defined as a process in which the amplitude of the 2. Page 2. Each type has its own advantages and disadvantages, some being used when receivers used discrete components, and others now that ICs are widely used. design fm demodulation frequency modulation fm is a technique in which the frequency of a transmitted waveform is varied according to the variations in the message wave the fm is a very popular technique since they are widely used by the fm radio stations, and now this output is modulated using the input voltage Difference Between AM And FM. This system offers choice of various modulators and demodulators, which allows student to draw comparison between different methods of Frequency modulation and Phase modulation and Demodulation. Pass the recovered carrier phase into the demodulator model where it can be used directly as the reference phase. Pre Emphasis - De Emphasis Circuits. 500Hz+, so I built this by modifying the carrier and signal frequencies, using only the Di… A) Study of QPSK Modulation & Demodulation for various DATA patterns Top FREQUENCY MODULATION AND DEMODULATION TRAINER Frequency modulation (FM) conveys information over a carrier wave by varying its frequency. In analog applications, the instantaneous frequency of the carrier is directly proportional to the instantaneous value of the input signal. Experiment No-2: To study Frequency Modulation and Demodulation. Ne567 Tone Decoder As Am Fm Demodulator At 455 Khz. An FM transmission consists of a wave who's frequency is modulated, or changed, with respect to an input signal. This video uses properties of the Fourier transform to explain modulation and demodulation inside a simple AM radio system. message signal m (t) i. FM Modulation and Demodulation Circuit. 3- To understand the theory of PCM modulation circuit. F. Learn how to generate F M signal. Let J1 be short circuit, i. It depends on the actual modulation type whether or not the spectra become similar with respect to shapes, symmetries, and bandwidths. Modulation is comparatively simple in between Modulation and Demodulation technique. e. This lab will have you create and analyze some simple frequency modulated (FM) waveforms. jhoem0456. Learn how to build FM demodulator. transmission through the channel in consideration. The student will learn the basic concepts of SSB modulation and using the theoretical knowledge of courses. In the process, we’ll learn about modulation of signals, demodulation of signals, and Field-E↵ect Transistors (JFETs and MOSFETs). Frequency modulation (FM) demodulation, frequency shift keying (FSK) demodulation, tone decoding, frequency multiplication, signal conditioning, clock synchronization, and frequency synthesis are some of the many applications of a PLL. Set the input signal. Since the amplitude is kept constant, FM modulation is a low noise process and provides a high quality modulation technique which is used for music and speech in hi-fidelity broadcasts. More instructional engine. Modulation is for transmit data to extensive distance. of ECE, GCEM. FM modulation: Frequency modulation (FM) is a process in which the carrier frequency is varied by the amplitude of the modulating signal (i. The modulator outputs two files, the first with the modulated signal exactly N real elements long and the MODULATION To study frequency modulation & demodulation and to calculate modulation index of FM. Frequency Modulation, FM. 10. the selected capacitor is C 4 = 10 nF. 3) Slide 26 Experiment 8. Use a 100 Hz square wave to frequency-modulate the HP3314A VCO. Examine the factors affecting the shape of the spectrum and the bandwidth of FM signals. akankshananaware0311. The amplitude of the carrier remains constant Phase Modulation (PM) Another form of analog modulation technique which we will not discuss FREQUENCY MODULATION AND DEMODULATION Aim: 1. 1 Circuit. Choose the free-running frequency of the PLL equal to the carrier frequency of the FM signal. However, as the FSK signal switches back and forth between just two frequencies we can use a method of demodulating it that cannot be used to demodulate speech encoded FM signals. To study sampling and reconstruction of Pulse Amplitude modulation system 6. Generate FM modulated wave form. We discuss . In Experiment # 3, you designed and built an AM modulator, and had the opportunity to see how an envelope detector works in demodulating an AM signal. 2 detector. 2) PLL (Phase locked loop) demodulator. Also shows approx. INFERENCE: Analog switch can be used as a PAM modulator and a simple RC low pass filter can be used as a PAM demodulator. LAB5: Digital Modulation and Demodulation Abstract In this experiment, we explored the concepts of and the different digital Analog Demodulation X-Series Measurement Application N9063C Technical Overview – Perform one-button measurements for AM, FM, PM and FM stereo signals with multi-touch user interface for the UXA signal analyzer – Quad view, simultaneously displays RF spectrum, demodulated waveform, AF spectrum, The example, shows how the FM Modulator Baseband and FM Demodulator Baseband blocks are used to modulate and demodulate a sinusoidal signal. AM/FM Radio System • The different radio stations share the frequency spectrum over the air through AM and FM modulation. Experiment: a) Modulation 1 Frequency Modulation (FM) 1. 4 Improvement of Interference and Noise . 8. The m-file pre6_1. Fig. To perform Demodulation of AM wave. obtain FM signal. Study of generation and detection of FM Modulated signal. Experiment No-1: To study and Perform Amplitude Modulation & Demodulation. The message or modulating signal may be either: analogue – denoted by m (t) digital – denoted by d (t) – i. fm modulation and demodulation circuit. 1155/2011, 2011, p. Build simple envelope detector for FM demodulation. A key part of good laboratory practice is to maintain a lab notebook. In this experiment we take a look how they change with the modulating signal amplitude. 4. Each TechBook is provided with detailed Multimedia learning material which covers basic theory, step by step procedure to conduct the experiment and other . Demodulation of the FM signal. In telecommunications and signal processing, frequency modulation digital modulation experiments include PCM encoding and decoding, line codes and digital carrier modulation (ASK and FSK). This mapping can be digital or it can be analog. Remember to set up the VCO module in 100 kHz VCO mode. J3 be short circuit and J2 be opened circuit, i. Apparatus Required: 1. 9-10 Experiment No-4: To study Pulse Width Modulation and Demodulation. Figure 1: Amplitude modulated signal in time and frequency domains. 12. 2 Spectrum of an FM Signal Slide 24 Experiment 8. Demonstrate the modulation of FM. Fig 3. The demodulation of an AM wave can be done with only few components and unlike most of the demodulation technique there is . LAB-I/03. 2. Pulse Amplitude Modulation & Demodulation A device that performs modulation is known as a modulator and a device that performs the inverse operation of modulation is known as a demodulator sometimes detector or demod. 0Kohm resistor, Power supply with +/-5V, Scope Sep 19, 2012 · modulation and demodulation technique is given mathematically. The modulation index must be less than unity. fProcedures Design the test circuit shown in Figure 2. 4) Ratio-detector. g t A tk m d FM ω αα c f ( ) ∞ −∞ = + ∫. All your pre-lab . mentation is Amplitude & Frequency modulation followed by demodulation. 61 In modulation, a message signal, which contains the information is used to control the. 1 Aim: To study the function of Amplitude Modulation & Demodulation (under modulation, perfect modulation & over modulation) and also to calculate the modulation index. Page 8. Minakshi1. FREQUENCY MODULATION AND DEMODULATION Frequency modulation (FM) is one of the angle modulation techniques. Deviation Adjust Knob - Allows the deviation caused by a signal at the FM INPUT to be changed. By zooming in with graph palette we can see different FM ACL-03 and ACL-04 covers the principal of Frequency Modulation and Phase Modulation communication techniques. Experiment theory: From experiment 3, we know that the amplitude modulation signal utilizes the amplitude of audio signal to modulate high frequency carrier signal. May 25, 2017 · AN62582 - AM Modulation and Demodulation. Answer: 2. Basic Information . If the input signal frequency changes, so does the carrier frequency. Dec 05, 2014 · 11. The purpose of this paper is to describe a simple circuit simulation project that demonstrates the relevant concepts in an intuitive manner. A refinement of amplitude modulation, it uses transmitter power and bandwidth more efficiently. 1 Objective This experiment deals with the basic performance of Frequency Modulation (F M ). FM Demodulation Date:03. section is to consider the details of the modulator and demodulator blocks. SSB-SC Modulator & Detector (Phase Shift Method) 5. A phase-locked loop (PLL) can be used to create a complex but high-performance circuit for FM demodulation. Each experiment, whenever applicable, contains the following sections: Objectives: where the expected achievements by the end of the experiment are stated. 5. 2, 1 and 5 (b) Use table (1) to flnd the rms-value and location of each frequency component of the FM signal, with fl = 0. 19. At a sampling rate of 8 kHz, the smallest frequency that . Physics 404 Modulation & Demodulation Lab. This application report discusses logic-level implementation of FSK modulator and demodulator using a PLL device HC/HCT4046A. . An envelope detector (Figure 6(a)) is an electronic circuit that takes a high-frequency modulated signal as input and provides an output which is the "envelope" of the original signal. g. AMPLITUDE MODULATION SYSTEMS:Radio Transmitter and Receiver. ) 1. 1 Introduction 2. natale88. Couch, Digital and Analog Communication Systems, Seventh Edition. Frequency modulation (FM) . For a transmitter, the Short Paper—Simulation of Analog Modulation and Demodulation Techniques in Virtual Instrumenta… Fig. digital modulation experiments include PCM encoding and decoding, line codes and digital carrier modulation (ASK and FSK). 96 Hz frequency shift due to ADC DC offset. the selected capacitor is C4 = 10 nF. frequency shift keying fsk modulation and demodulation. CIRCUIT DIAGRAM: MODULATION: Page 35. The demodulation process can directly detect these modulation frequencies and is used to recover the information content from the modulated carrier wave. Demodulate the signal using the FM receiver or let a . AIM: To perform the characteristics of the Balanced Modulator as a. “Mo” from modulator and “Dem” from demodulator. Jan 17, 2014 · Experiment 5: Frequency Modulation and Demodulation Last Modified: 1/17/2014 ECE440: Transmission of Information Page 6 of 8 6. 3 Demodulation by a Discriminator Slide 27 Experiment 8. ωc= carrier frequency (rad/s). 1 Intermediate Frequency Transformer . A simple effective FM demodulator is one which takes a time . MODULATION & DEMODULATION Questions and Answers pdf free download also objective multiple choice interview 2 mark important questions lab viva manual book Skip to content Engineering interview questions,Mcqs,Objective Questions,Class Notes,Seminor topics,Lab Viva Pdf free download. 1Simulink Model of FM De-Modulation Using Matlab There are a number of circuits that can be used to demodulate FM. 13. 3 Frequency Modulation It is the modulation where the frequency of the carrier signal is modulated (changed) in proportion to the message signal while the phase and amplitude and amplitude are constant. AMPLITUDE MODULATION & DEMODULATION Aim: 1. implementation of frequency demodulator using the pll. Digital Storage Oscilloscope (DSO) 3. AM MODULATORS . B: FM To obtain a frequency modulated signal we fix the amplitude and let the . Unit 4 Process Signal Modlation And Demodulation Techniques. PO1, PO2 PSO1 Jul 18, 2019 · 1. Modulate a signal with high frequency carrier to. (Louis E. That design wasn't meant for passing frequencies high enough . So, before the PCM signal sends to the PCM demodulator, we have to recover the signal to the original level for that we are using a comparator. parameters of a carrier signal, so as to impress the information onto the carrier. The amplitude modulation is the simplest modulation technique among the wide verity of modulation techniques in use. Demodulation is defined as the process of extracting this information. The goal of this experiment is to become familiar with FM modulation and demodulation. Dec 4, 2020 . Page 4/8. The . In a correlation receiver for 8-PSK, the recov- EXPERIMENT – 1 4. FM DETECTION INFORMATION: An FM detector or demodulator is a circuit used to convert the intelligence in the FM carrier back to its original baseband form, that is, the modulation voltage. To study frequency modulation and determine its modulation factor. v. Frequency modulation is a process of changing the frequency of a carrier wave in. Solved The Following Circuit Is An Am Radio If You Look. 2- To understand the operation theory of pulse coded modulation (PCM). • For a signal modulated with a linear modulation, like AM, we can use a synchronous detector. DSB-SC Modulator and Demodulator. It is based on a nominal 100 kHz carrier. timer ic or without any ic im unable to find working circuits on google, implementation of fsk modulation and demodulation using cd74hc4046a the hc hct4046a pll with vco is a high speed cmos ic designed for use in general purpose pll applications including frequency modulation demodulation discrimination synthesis and multiplication, the keying using 555 mini projects, experiment 6 frequency modulation fm generation and, experiment 8 fsk demodulator site iugaza edu ps, fsk modulator circuit diagram wiring diagram gallery, fm modulator circuit using 555 timer ic peter vis, fm generation using 555 timer electrosome, frequency Modulation is defined as the process of transmission of information such as images or videos on an electrical signal. The implementation of PCM demodulator: The implementation of the PCM demodulator is similar to experiment 3, which is IC CW6694 from Conwise. Objective . Produce a frequency modulated transmission signal. One of the most popular techniques is to use a phase-locked loop (PLC). Plot the theoretical power spectrum of a sinusoidally modulated FM signal with β = 2,. ) a. 5 Modulation and Demodulation. 2 Prelab Exercise 1. Therefore, when we receive the amplitude modulation signal, we need to restore the audio signal. frequency modulation, 0(t) is generated at the transmitter source as. 1 Introduction A sinusoidal carrier c()t =Acos(ωct +θ0) has three parameters that can be modified (modulated) according to an information signal f. φ(t) =ω ct +∆φsinω Mt ω(t) = d φ dt =ω c +∆ωcosω Mt V(t) =sin(ω ct +∆ωcosω Mt) (2) ∆φ≡ ∆ω ω 2. 2: FM Demodulation Using a Frequency Dis-. Creator. Summary. a low- frequency modulating signal (usually an audio). 4 To study and perform Pulse Width Modulation and Demodulation. Frequency Modulation/Demodulation Lab #3. fm modulation and demodulation experiment pdf