EXPERIMENT NO. 3 FSK Modulation

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "EXPERIMENT NO. 3 FSK Modulation"

Transcription

1 DEPARTMENT OF ELECTRICAL & COMPUTER ENGINEERING ECE 4203: COMMUNICATIONS ENGINEERING LAB II SEMESTER 2, 2017/2018 EXPERIMENT NO. 3 FSK Modulation NAME: MATRIC NO: DATE: SECTION:

2 FSK MODULATION Objective To describe the FSK modulation and demodulation (Frequency Shift Keying) To carry out a FSK connection To examine the noise effect on the connection Material Power unit PSU Module holder base Individual Control Unit SIS1 Experiment module MCM31 Oscilloscope THEORETICAL NOTIONS Frequency Shift Keying FSK In this modulation the sine carrier takes 2 frequency values, determined by the binary data signal (fig.1). The modulator can be carried out in different ways; among the most used we can mention: a Voltage Controlled Oscillator (VCO) a system transmitting one of the 2 frequencies, as function of the data signal a frequency divider controlled by the data signal. The most used demodulation technique is the one using a PLL circuit (fig.2). The FSK signal across the PLL input takes two frequency values. The error voltage supplied by the phase comparator follows such variations, and so, it constitutes the NRZ binary representation (high and low level) of the FSK input signal. The PLL demodulator is followed by a low pass filter, which removes the residual carrier components, and a squarer circuit which forms the proper data signal. The main factors characterizing the FSK are: applications of the data transmission modems (ITU-T V21, ITU-T V23, BELL 103, BELL 113, BELL 202), in digital radio transmission, in the cellular telephone system ETACS (information transmission across the Control Channel) it requires circuits of average complexity high probability of error, but lower than the ASK called Fb the bit transmission speed, the minimum spectrum Bw of the modulated signal is higher than Fb the transmission efficiency, defined as the ratio between Fb and Bw, is lower than 1 the Baud or Baud rate, defined as modulation speed or symbol speed, is equal to the transmission speed Fb. 2

3 Figure 1: FSK Modulation Figure 2: FSK Demodulation with PLL FSK Modulator The block diagram of the FSK modulator is shown in fig.3. The FSK signal is generated by means of 2 ASK modulators, which outputs are combined together with an adder. The two sine carriers at 1200 and 1800 Hz are applied separately to the 2 modulators. The data reach one of the two modulators in direct form, the other in negated form. In this way a modulator supplies a sine wave when the datum is "1", the second when the datum is "0". The FSK signal is obtained by adding the two outputs (fig.3). The 6dB-attenuator makes the signal amplitude half, and is activated. 3

4 Figure 3: FSK Modulator FSK Demodulator The FSK demodulator consists in the sections shown in fig.4: an FM detector made with PLL circuit a low pass filter a squarer circuit (with output in TP29) in case of asynchronous data, which are not retimed) a circuit for clock extraction and data re-timing, in case of synchronous data (data output on TP31, clock on TP32). The filter, the clock extraction circuit and the data re-timing circuit are used to demodulate also other kinds of signals. Figure 4: FSK Demodulator 4

5 PROCEDURE Wave-forms of the FSK Modulator MCM 31 Disconnect all jumpers SIS1 Turn all switches OFF Power the module set the circuit in FSK mode, with 24-bit data source and without data coding (connect J1c-J3a- J4-J5-J6b, set SW2=Normal, Sw3=24 bit, SW4=1800, SW5=1200/0 0, SW6=FSK, SW8=BIT, ATT=min, NOISE=min) set an alternated data sequence 00/11 and push START connect the oscilloscope to TP6 and TP16 and examine the data signal and the FSK signal. Adjust the phase (PHASE) of the 1200Hz carrier to get continuity of FSK signal in the passage between the two frequencies (this kind of modulation is known as Minimum Frequency Shift Keying). Note the two different frequencies are generated at bits 1 and 0, 1800Hz and 1200Hz in this case. Q1 What can you detect across TP 16? 5

6 Q2 How is the FSK signal obtained? Waveforms of the FSK demodulator Keep the last conditions (connect J1c-J3a-J4-J5-J6b, set SW2=Normal, Sw3=24 bit, SW4=1800, SW5=1200/0 0, SW6=FSK, SW8=BIT, ATT=min, NOISE=min) set an alternated data sequence 00/11 and push START connect the oscilloscope to TP16 and TP20, to examine the FSK signal before and after the communication Channel (Fig. 5) note the effect of the communication channel on the FSK signal. As the communication channel is limited band (the frequency response is low pass), the output FSK signal is slightly attenuated by the component with higher frequency (1800 Hz). Q3 What kind of signal can you detect across TP 23? 6

7 Figure 5: FSK Waveforms The signal supplied by the FSK demodulator is filtered by low pass filter, which removes the residuals of the FSK frequencies. The detected data signal is obtained across the filter output (TP24, fig. 5) in asynchronous data transmission, i.e. when in reception the clock regeneration and the data re-timing are not required, it is sufficient to square the signal supplied by the filter. The square output (threshold circuit) is detectable across TP29. On the oscilloscope note the correspondence between the transmitted data (TP6) and the received data (TP29). Introduce line attenuation (ATT), and note that the received data are not affected by the amplitude variations of the FSK signal. By inserting the noise (NOISE), too, you cause all alteration on the received data. 7

8 Q4 Why is the FSK less sensitive than the ASK to the signal amplitude variations? Take the line attenuation and line noise minimum Turn ON switch S15 Q5 The data in TP29 are not correct. Why? 8

DEPARTMENT OF ELECTRICAL & COMPUTER ENGINEERING ECOM 4101 (ECE 4203) COMMUNICATIONS ENGINEERING LAB II SEMESTER 2, 2016/2017 EXPERIMENT NO.

DEPARTMENT OF ELECTRICAL & COMPUTER ENGINEERING ECOM 4101 (ECE 4203) COMMUNICATIONS ENGINEERING LAB II SEMESTER 2, 2016/2017 EXPERIMENT NO. DEPARTMENT OF ELECTRICAL & COMPUTER ENGINEERING ECOM 4101 (ECE 4203) COMMUNICATIONS ENGINEERING LAB II SEMESTER 2, 2016/2017 EXPERIMENT NO. 2 ASK MODULATION NAME: MATRIC NO: DATE: SECTION: Objectives To

More information

EXPERIMENT NO. 4 PSK Modulation

EXPERIMENT NO. 4 PSK Modulation DEPARTMENT OF ELECTRICAL & COMPUTER ENGINEERING ECOM 4101 (ECE 4203) COMMUNICATIONS ENGINEERING LAB II SEMESTER 2, 2016/2017 EXPERIMENT NO. 4 PSK Modulation NAME: MATRIC NO: DATE: SECTION: PSK MODULATION

More information

Universitas Sumatera Utara

Universitas Sumatera Utara Amplitude Shift Keying & Frequency Shift Keying Aim: To generate and demodulate an amplitude shift keyed (ASK) signal and a binary FSK signal. Intro to Generation of ASK Amplitude shift keying - ASK -

More information

German Jordanian University. Department of Communication Engineering. Digital Communication Systems Lab. CME 313-Lab. Experiment 8

German Jordanian University. Department of Communication Engineering. Digital Communication Systems Lab. CME 313-Lab. Experiment 8 German Jordanian University Department of Communication Engineering Digital Communication Systems Lab CME 313-Lab Experiment 8 Binary Frequency-shift keying (BPSK) Eng. Anas Al-ashqar Dr. Ala' Khalifeh

More information

Digital Communication

Digital Communication Digital Communication Laboratories bako@ieee.org DigiCom Labs There are 5 labs related to the digital communication. Study of the parameters of metal cables including: characteristic impendance, attenuation

More information

German Jordanian University Department of Communication Engineering Digital Communication Systems Lab. CME 313-Lab

German Jordanian University Department of Communication Engineering Digital Communication Systems Lab. CME 313-Lab German Jordanian University Department of Communication Engineering Digital Communication Systems Lab CME 313-Lab Experiment 7 Binary Frequency-shift keying (BPSK) Eng. Anas Al-ashqar Dr. Ala' Khalifeh

More information

Department of Electronic and Information Engineering. Communication Laboratory

Department of Electronic and Information Engineering. Communication Laboratory Department of Electronic and Information Engineering Communication Laboratory Frequency Shift Keying (FSK) & Differential Phase Shift Keying (DPSK) & Differential Quadrature Phase Shift Keying (DQPSK)

More information

Communication System KL-910. Advanced Communication System

Communication System KL-910. Advanced Communication System KL-910 Advanced KL-910 is a modular trainer with various advanced communication s, including digital encoding/decoding, modulation/demodulation and related multiplexing techniques, developed for bridging

More information

CHAPTER 2 DIGITAL MODULATION

CHAPTER 2 DIGITAL MODULATION 2.1 INTRODUCTION CHAPTER 2 DIGITAL MODULATION Referring to Equation (2.1), if the information signal is digital and the amplitude (lv of the carrier is varied proportional to the information signal, a

More information

CME 312-Lab Communication Systems Laboratory

CME 312-Lab Communication Systems Laboratory Objective: By the end of this experiment, the student should be able to: 1. Demonstrate the Modulation and Demodulation of the AM. 2. Observe the relation between modulation index and AM signal envelope.

More information

Chapter 3: DIFFERENTIAL ENCODING

Chapter 3: DIFFERENTIAL ENCODING Chapter 3: DIFFERENTIAL ENCODING Differential Encoding Eye Patterns Regenerative Receiver Bit Synchronizer Binary to Mary Conversion Huseyin Bilgekul Eeng360 Communication Systems I Department of Electrical

More information

Chapter 2: Fundamentals of Data and Signals

Chapter 2: Fundamentals of Data and Signals Chapter 2: Fundamentals of Data and Signals TRUE/FALSE 1. The terms data and signal mean the same thing. F PTS: 1 REF: 30 2. By convention, the minimum and maximum values of analog data and signals are

More information

Rec. ITU-R F RECOMMENDATION ITU-R F *,**

Rec. ITU-R F RECOMMENDATION ITU-R F *,** Rec. ITU-R F.240-6 1 RECOMMENDATION ITU-R F.240-6 *,** SIGNAL-TO-INTERFERENCE PROTECTION RATIOS FOR VARIOUS CLASSES OF EMISSION IN THE FIXED SERVICE BELOW ABOUT 30 MHz (Question 143/9) Rec. ITU-R F.240-6

More information

CSE 123: Computer Networks Alex C. Snoeren. Project 1 out Today, due 10/26!

CSE 123: Computer Networks Alex C. Snoeren. Project 1 out Today, due 10/26! CSE 123: Computer Networks Alex C. Snoeren Project 1 out Today, due 10/26! Signaling Types of physical media Shannon s Law and Nyquist Limit Encoding schemes Clock recovery Manchester, NRZ, NRZI, etc.

More information

6. has units of bits/second. a. Throughput b. Propagation speed c. Propagation time d. (b)or(c)

6. has units of bits/second. a. Throughput b. Propagation speed c. Propagation time d. (b)or(c) King Saud University College of Computer and Information Sciences Information Technology Department First Semester 1436/1437 IT224: Networks 1 Sheet# 10 (chapter 3-4-5) Multiple-Choice Questions 1. Before

More information

BINARY AMPLITUDE SHIFT KEYING

BINARY AMPLITUDE SHIFT KEYING BINARY AMPLITUDE SHIFT KEYING AIM: To set up a circuit to generate Binary Amplitude Shift keying and to plot the output waveforms. COMPONENTS AND EQUIPMENTS REQUIRED: IC CD4016, IC 7474, Resistors, Zener

More information

2. By convention, the minimum and maximum values of analog data and signals are presented as voltages.

2. By convention, the minimum and maximum values of analog data and signals are presented as voltages. Chapter 2: Fundamentals of Data and Signals Data Communications and Computer Networks A Business Users Approach 8th Edition White TEST BANK Full clear download (no formatting errors) at: https://testbankreal.com/download/data-communications-computer-networksbusiness-users-approach-8th-edition-white-test-bank/

More information

AC LAB ECE-D ecestudy.wordpress.com

AC LAB ECE-D ecestudy.wordpress.com PART B EXPERIMENT NO: 1 AIM: PULSE AMPLITUDE MODULATION (PAM) & DEMODULATION DATE: To study Pulse Amplitude modulation and demodulation process with relevant waveforms. APPARATUS: 1. Pulse amplitude modulation

More information

Outline / Wireless Networks and Applications Lecture 3: Physical Layer Signals, Modulation, Multiplexing. Cartoon View 1 A Wave of Energy

Outline / Wireless Networks and Applications Lecture 3: Physical Layer Signals, Modulation, Multiplexing. Cartoon View 1 A Wave of Energy Outline 18-452/18-750 Wireless Networks and Applications Lecture 3: Physical Layer Signals, Modulation, Multiplexing Peter Steenkiste Carnegie Mellon University Spring Semester 2017 http://www.cs.cmu.edu/~prs/wirelesss17/

More information

COSC 3213: Computer Networks I: Chapter 3 Handout #4. Instructor: Dr. Marvin Mandelbaum Department of Computer Science York University Section A

COSC 3213: Computer Networks I: Chapter 3 Handout #4. Instructor: Dr. Marvin Mandelbaum Department of Computer Science York University Section A COSC 3213: Computer Networks I: Chapter 3 Handout #4 Instructor: Dr. Marvin Mandelbaum Department of Computer Science York University Section A Topics: 1. Line Coding: Unipolar, Polar,and Inverted ; Bipolar;

More information

9600 bps, Dual Modem 170 Card Private Wire Only

9600 bps, Dual Modem 170 Card Private Wire Only 896 9600 bps, Dual Modem 170 Card Private Wire Only Users Guide 280 Interstate 80 West Exit 1 / PO Box 1330, Verdi, NV 89439 Phone: 775-345-8000 Fax: 775-345-8010 E-mail: traffic@sgdi.net TABLE OF CONTENTS

More information

The quality of the transmission signal The characteristics of the transmission medium. Some type of transmission medium is required for transmission:

The quality of the transmission signal The characteristics of the transmission medium. Some type of transmission medium is required for transmission: Data Transmission The successful transmission of data depends upon two factors: The quality of the transmission signal The characteristics of the transmission medium Some type of transmission medium is

More information

RECOMMENDATION ITU-R F *, ** Signal-to-interference protection ratios for various classes of emission in the fixed service below about 30 MHz

RECOMMENDATION ITU-R F *, ** Signal-to-interference protection ratios for various classes of emission in the fixed service below about 30 MHz Rec. ITU-R F.240-7 1 RECOMMENDATION ITU-R F.240-7 *, ** Signal-to-interference protection ratios for various classes of emission in the fixed service below about 30 MHz (Question ITU-R 143/9) (1953-1956-1959-1970-1974-1978-1986-1990-1992-2006)

More information

Synchronization. EE442 Lecture 17. All digital receivers must be synchronized to the incoming signal s(t).

Synchronization. EE442 Lecture 17. All digital receivers must be synchronized to the incoming signal s(t). Synchronization EE442 Lecture 17 All digital receivers must be synchronized to the incoming signal s(t). This means we must have a way to perform (1) Bit or symbol synchronization (2) Frame synchronization

More information

DIGITAL COMMUNICATIONS SYSTEMS. MSc in Electronic Technologies and Communications

DIGITAL COMMUNICATIONS SYSTEMS. MSc in Electronic Technologies and Communications DIGITAL COMMUNICATIONS SYSTEMS MSc in Electronic Technologies and Communications Bandpass binary signalling The common techniques of bandpass binary signalling are: - On-off keying (OOK), also known as

More information

Exercise 3. Differential QAM (DQAM) EXERCISE OBJECTIVE DISCUSSION OUTLINE DISCUSSION. Review of phase ambiguity

Exercise 3. Differential QAM (DQAM) EXERCISE OBJECTIVE DISCUSSION OUTLINE DISCUSSION. Review of phase ambiguity Exercise 3 Differential QAM (DQAM) EXERCISE OBJECTIVE When you have completed this exercise, you will be familiar with the use of differential encoding, using the ITU-T V.22 bis recommendation, to overcome

More information

SEN366 Computer Networks

SEN366 Computer Networks SEN366 Computer Networks Prof. Dr. Hasan Hüseyin BALIK (5 th Week) 5. Signal Encoding Techniques 5.Outline An overview of the basic methods of encoding digital data into a digital signal An overview of

More information

Announcements : Wireless Networks Lecture 3: Physical Layer. Bird s Eye View. Outline. Page 1

Announcements : Wireless Networks Lecture 3: Physical Layer. Bird s Eye View. Outline. Page 1 Announcements 18-759: Wireless Networks Lecture 3: Physical Layer Please start to form project teams» Updated project handout is available on the web site Also start to form teams for surveys» Send mail

More information

Learning Material Ver 1.1

Learning Material Ver 1.1 Data Formatting & Carrier Modulation Transmitter Trainer and Carrier Demodulation & Data Reformatting Receiver Trainer ST2106 & ST2107 Learning Material Ver 1.1 An ISO 9001 : 2000 company 94, Electronic

More information

CARRIER ACQUISITION AND THE PLL

CARRIER ACQUISITION AND THE PLL CARRIER ACQUISITION AND THE PLL PREPARATION... 22 carrier acquisition methods... 22 bandpass filter...22 the phase locked loop (PLL)....23 squaring...24 squarer plus PLL...26 the Costas loop...26 EXPERIMENT...

More information

Basic Concepts in Data Transmission

Basic Concepts in Data Transmission Basic Concepts in Data Transmission EE450: Introduction to Computer Networks Professor A. Zahid A.Zahid-EE450 1 Data and Signals Data is an entity that convey information Analog Continuous values within

More information

Exercise Generation and Demodulation of DPSK Signal

Exercise Generation and Demodulation of DPSK Signal Exercise Generation and Demodulation of DPSK Signal EXERCISE OBJECTIVE When you have completed this exercise, you will see the operation principle and characteristics of the DPSK signal generator by measuring

More information

CS601 Data Communication Solved Objective For Midterm Exam Preparation

CS601 Data Communication Solved Objective For Midterm Exam Preparation CS601 Data Communication Solved Objective For Midterm Exam Preparation Question No: 1 Effective network mean that the network has fast delivery, timeliness and high bandwidth duplex transmission accurate

More information

Data Communication (CS601)

Data Communication (CS601) Data Communication (CS601) MOST LATEST (2012) PAPERS For MID Term (ZUBAIR AKBAR KHAN) Page 1 Q. Suppose a famous Telecomm company AT&T is using AMI encoding standard for its digital telephone services,

More information

Signal Characteristics

Signal Characteristics Data Transmission The successful transmission of data depends upon two factors:» The quality of the transmission signal» The characteristics of the transmission medium Some type of transmission medium

More information

UNIT 2 DIGITAL COMMUNICATION DIGITAL COMMUNICATION-Introduction The techniques used to modulate digital information so that it can be transmitted via microwave, satellite or down a cable pair is different

More information

EXPERIMENT 1: Amplitude Shift Keying (ASK)

EXPERIMENT 1: Amplitude Shift Keying (ASK) EXPERIMENT 1: Amplitude Shift Keying (ASK) 1) OBJECTIVE Generation and demodulation of an amplitude shift keyed (ASK) signal 2) PRELIMINARY DISCUSSION In ASK, the amplitude of a carrier signal is modified

More information

Volumes 1 and 2 Experiments in Modern Analog & Digital Telecommunications Barry Duncan

Volumes 1 and 2 Experiments in Modern Analog & Digital Telecommunications Barry Duncan Emona 101 Trainer SAMPLE Lab Manual Volumes 1 and 2 Experiments in Modern Analog & Digital Telecommunications Barry Duncan Emona 101 Trainer SAMPLE Lab Manual Volumes 1 and 2 Experiments in Modern Analog

More information

A Complete Set of Experiments for Communication Classes

A Complete Set of Experiments for Communication Classes A Complete Set of Experiments for Communication Classes Firas Hassan Ohio Northern University, Ada, OH 45810 f-hassan@onu.edu Abstract In this paper, a set of module based hands-on experiments that cover

More information

UNIT TEST I Digital Communication

UNIT TEST I Digital Communication Time: 1 Hour Class: T.E. I & II Max. Marks: 30 Q.1) (a) A compact disc (CD) records audio signals digitally by using PCM. Assume the audio signal B.W. to be 15 khz. (I) Find Nyquist rate. (II) If the Nyquist

More information

Transmission of Analog Signal - II

Transmission of Analog Signal - II CS311: DATA COMMUNICATION Transmission of Analog Signal - II Dr. Manas Khatua Assistant Professor Dept. of CSE IIT Jodhpur E-mail: manaskhatua@iitj.ac.in Transmission of Analog Signal-II On completion,

More information

Unit aim. Telecommunication principles OCR unit number: 22. Level: 3 Credit value: 10 Guided learning hours: 80

Unit aim. Telecommunication principles OCR unit number: 22. Level: 3 Credit value: 10 Guided learning hours: 80 Unit Title: Telecommunication principles OCR unit number: 22 Unit reference number: D/601/3254 Level: 3 Credit value: 10 Guided learning hours: 80 Unit aim The aim of this unit is that learners will: Understand

More information

Emona Telecoms-Trainer ETT-101

Emona Telecoms-Trainer ETT-101 EXPERIMENTS IN MODERN COMMUNICATIONS Emona Telecoms-Trainer ETT-101 Multi-Experiment Single Board Telecommunications Trainer for Technical College and Technical High School Students EMONA INSTRUMENTS www.ett101.com

More information

CS601-Data Communication Latest Solved Mcqs from Midterm Papers

CS601-Data Communication Latest Solved Mcqs from Midterm Papers CS601-Data Communication Latest Solved Mcqs from Midterm Papers May 07,2011 Lectures 1-22 Moaaz Siddiq Latest Mcqs MIDTERM EXAMINATION Spring 2010 Question No: 1 ( Marks: 1 ) - Please choose one Effective

More information

User Manual. CC1000DK Development Kit

User Manual. CC1000DK Development Kit User Manual Rev. 2.11 CC1000DK Development Kit SWRU058 Page 1 of 24 Table of contents: INTRODUCTION... 3 EVALUATION BOARD... 3 DESCRIPTION... 4 LAYOUT SKETCHES, ASSEMBLY DRAWINGS AND CIRCUIT DIAGRAM...

More information

HF Receivers, Part 3

HF Receivers, Part 3 HF Receivers, Part 3 Introduction to frequency synthesis; ancillary receiver functions Adam Farson VA7OJ View an excellent tutorial on receivers Another link to receiver principles NSARC HF Operators HF

More information

Analog and Telecommunication Electronics

Analog and Telecommunication Electronics Politecnico di Torino Electronic Eng. Master Degree Analog and Telecommunication Electronics C5 - Synchronous demodulation» AM and FM demodulation» Coherent demodulation» Tone decoders AY 2015-16 19/03/2016-1

More information

Digital to Digital Encoding

Digital to Digital Encoding MODULATION AND ENCODING Data must be transformed into signals to send them from one place to another Conversion Schemes Digital-to-Digital Analog-to-Digital Digital-to-Analog Analog-to-Analog Digital to

More information

Lecture 5 Transmission

Lecture 5 Transmission Lecture 5 Transmission David Andersen Department of Computer Science Carnegie Mellon University 15-441 Networking, Spring 2005 http://www.cs.cmu.edu/~srini/15-441/s05 1 Physical and Datalink Layers: 3

More information

EE-4022 Experiment 3 Frequency Modulation (FM)

EE-4022 Experiment 3 Frequency Modulation (FM) EE-4022 MILWAUKEE SCHOOL OF ENGINEERING 2015 Page 3-1 Student Objectives: EE-4022 Experiment 3 Frequency Modulation (FM) In this experiment the student will use laboratory modules including a Voltage-Controlled

More information

EE470 Electronic Communication Theory Exam II

EE470 Electronic Communication Theory Exam II EE470 Electronic Communication Theory Exam II Open text, closed notes. For partial credit, you must show all formulas in symbolic form and you must work neatly!!! Date: November 6, 2013 Name: 1. [16%]

More information

COMM 704: Communication Systems

COMM 704: Communication Systems COMM 704: Communication Lecture 1: Introduction Dr. Mohamed Abd El Ghany, Mohamed.abdel-ghany@guc.edu.eg Course Objective Give an introduction to the basic concepts of electronic communication systems

More information

Experiment 7: Frequency Modulation and Phase Locked Loops

Experiment 7: Frequency Modulation and Phase Locked Loops Experiment 7: Frequency Modulation and Phase Locked Loops Frequency Modulation Background Normally, we consider a voltage wave form with a fixed frequency of the form v(t) = V sin( ct + ), (1) where c

More information

DIGITAL UTILITY SUB- SYSTEMS

DIGITAL UTILITY SUB- SYSTEMS DIGITAL UTILITY SUB- SYSTEMS INTRODUCTION... 138 bandpass filters... 138 digital delay... 139 digital divide-by-1, 2, 4, or 8... 140 digital divide-by-2, 3, 4... 140 digital divide-by-4... 141 digital

More information

POWER LINE COMMUNICATION. A dissertation submitted. to Istanbul Arel University in partial. fulfillment of the requirements for the.

POWER LINE COMMUNICATION. A dissertation submitted. to Istanbul Arel University in partial. fulfillment of the requirements for the. POWER LINE COMMUNICATION A dissertation submitted to Istanbul Arel University in partial fulfillment of the requirements for the Bachelor's Degree Submitted by Egemen Recep Çalışkan 2013 Title in all caps

More information

FCC and ETSI Requirements for Short-Range UHF ASK- Modulated Transmitters

FCC and ETSI Requirements for Short-Range UHF ASK- Modulated Transmitters From December 2005 High Frequency Electronics Copyright 2005 Summit Technical Media FCC and ETSI Requirements for Short-Range UHF ASK- Modulated Transmitters By Larry Burgess Maxim Integrated Products

More information

Design and Simulation of a Composite Digital Modulator

Design and Simulation of a Composite Digital Modulator The International Journal Of Engineering And Science (Ijes) Volume 2 Issue 3 Pages 49-55 2013 Issn: 2319 1813 Isbn: 2319 1805 Design and Simulation of a Composite Digital Modulator Soumik Kundu School

More information

Experiment # 4. Frequency Modulation

Experiment # 4. Frequency Modulation ECE 416 Fall 2002 Experiment # 4 Frequency Modulation 1 Purpose In Experiment # 3, a modulator and demodulator for AM were designed and built. In this experiment, another widely used modulation technique

More information

Helicity Clock Generator

Helicity Clock Generator Helicity Clock Generator R. Wojcik, N. Sinkin, C. Yan Jefferson Lab, 12000 Jefferson Ave, Newport News, VA 23606 Tech Note: JLAB-TN-01-035 ABSTRACT Based on the phased-locked loop (PLL) technique, a versatile

More information

Digital Modulation Schemes

Digital Modulation Schemes Digital Modulation Schemes 1. In binary data transmission DPSK is preferred to PSK because (a) a coherent carrier is not required to be generated at the receiver (b) for a given energy per bit, the probability

More information

Twelve voice signals, each band-limited to 3 khz, are frequency -multiplexed using 1 khz guard bands between channels and between the main carrier

Twelve voice signals, each band-limited to 3 khz, are frequency -multiplexed using 1 khz guard bands between channels and between the main carrier Twelve voice signals, each band-limited to 3 khz, are frequency -multiplexed using 1 khz guard bands between channels and between the main carrier and the first channel. The modulation of the main carrier

More information

RECOMMENDATION ITU-R SM Technical identification of digital signals

RECOMMENDATION ITU-R SM Technical identification of digital signals Rec. ITU-R SM.1600 1 RECOMMENDATION ITU-R SM.1600 Technical identification of digital signals The ITU Radiocommunication Assembly, considering a) that the use of radio grows steadily; b) that digital signals

More information

IEEE 802.3ba 40Gb/s and 100Gb/s Ethernet Task Force 22th Sep 2009

IEEE 802.3ba 40Gb/s and 100Gb/s Ethernet Task Force 22th Sep 2009 Draft Amendment to IEEE Std 0.-0 IEEE Draft P0.ba/D. IEEE 0.ba 0Gb/s and 00Gb/s Ethernet Task Force th Sep 0.. Stressed receiver sensitivity Stressed receiver sensitivity shall be within the limits given

More information

REPORT ITU-R M Adaptability of real zero single sideband technology to HF data communications

REPORT ITU-R M Adaptability of real zero single sideband technology to HF data communications Rep. ITU-R M.2026 1 REPORT ITU-R M.2026 Adaptability of real zero single sideband technology to HF data communications (2001) 1 Introduction Automated HF communications brought a number of innovative solutions

More information

Lecture 5 Transmission. Physical and Datalink Layers: 3 Lectures

Lecture 5 Transmission. Physical and Datalink Layers: 3 Lectures Lecture 5 Transmission Peter Steenkiste School of Computer Science Department of Electrical and Computer Engineering Carnegie Mellon University 15-441 Networking, Spring 2004 http://www.cs.cmu.edu/~prs/15-441

More information

Physical Layer: Outline

Physical Layer: Outline 18-345: Introduction to Telecommunication Networks Lectures 3: Physical Layer Peter Steenkiste Spring 2015 www.cs.cmu.edu/~prs/nets-ece Physical Layer: Outline Digital networking Modulation Characterization

More information

Helicity Clock Generator

Helicity Clock Generator Helicity Clock Generator R. Wojcik, N. Sinkin, C. Yan Jefferson Lab, 12000 Jefferson Ave, Newport News, VA 23606 Tech Note: JLAB-TN-01-035 ABSTRACT Based on the phased-locked loop (PLL) technique, a versatile

More information

SOME PHYSICAL LAYER ISSUES. Lecture Notes 2A

SOME PHYSICAL LAYER ISSUES. Lecture Notes 2A SOME PHYSICAL LAYER ISSUES Lecture Notes 2A Delays in networks Propagation time or propagation delay, t prop Time required for a signal or waveform to propagate (or move) from one point to another point.

More information

Block Diagram. i_in. q_in (optional) clk. 0 < seed < use both ports i_in and q_in

Block Diagram. i_in. q_in (optional) clk. 0 < seed < use both ports i_in and q_in Key Design Features Block Diagram Synthesizable, technology independent VHDL IP Core -bit signed input samples gain seed 32 dithering use_complex Accepts either complex (I/Q) or real input samples Programmable

More information

Tutorial 5. Prebared by T.A,Najed Almutairi

Tutorial 5. Prebared by T.A,Najed Almutairi Tutorial 5 1. What is differential encoding? Ans q (1) differential coding is a technique used to provide unambiguous signal reception when using some types of modulation. It makes data to be transmitted

More information

EXPERIMENT WISE VIVA QUESTIONS

EXPERIMENT WISE VIVA QUESTIONS EXPERIMENT WISE VIVA QUESTIONS Pulse Code Modulation: 1. Draw the block diagram of basic digital communication system. How it is different from analog communication system. 2. What are the advantages of

More information

Exercise 1: Frequency and Phase Modulation

Exercise 1: Frequency and Phase Modulation Exercise 1: Frequency and Phase Modulation EXERCISE OBJECTIVE When you have completed this exercise, you will be able to describe frequency modulation and an FM circuit. You will also be able to describe

More information

Experiment 5.A. Basic Wireless Control. ECEN 2270 Electronics Design Laboratory 1

Experiment 5.A. Basic Wireless Control. ECEN 2270 Electronics Design Laboratory 1 .A Basic Wireless Control ECEN 2270 Electronics Design Laboratory 1 Procedures 5.A.0 5.A.1 5.A.2 5.A.3 5.A.4 5.A.5 5.A.6 Turn in your pre lab before doing anything else. Receiver design band pass filter

More information

CSCI-1680 Physical Layer Rodrigo Fonseca

CSCI-1680 Physical Layer Rodrigo Fonseca CSCI-1680 Physical Layer Rodrigo Fonseca Based partly on lecture notes by David Mazières, Phil Levis, John Janno< Administrivia Signup for Snowcast milestone Make sure you signed up Make sure you are on

More information

The Discussion of this exercise covers the following points: Filtering Aperture distortion

The Discussion of this exercise covers the following points: Filtering Aperture distortion Exercise 3-1 PAM Signals Demodulation EXERCISE OBJECTIVE When you have completed this exercise you will be able to demonstrate the recovery of the original message signal from a PAM signal using the PAM

More information

Modulation in Telemetry Chapter 3

Modulation in Telemetry Chapter 3 TEMPEST Engineering and Hardware Design Dr. Bruce C. Gabrielson, NCE 1998 Modulation in Telemetry Chapter 3 Introduction Relative to low power signal transmission, not only must an engineer be able to

More information

TIMS-301 USER MANUAL. Telecommunications Instructional Modelling System

TIMS-301 USER MANUAL. Telecommunications Instructional Modelling System TIMS-301 R MANUAL Telecommunications Instructional Modelling System TIMS-301 R MANUAL Issue Number 1.4 February 2002 Published by: EMONA INSTRUMENTS PTY LTD a.c.n. 001 728 276 86 Parramatta Road Camperdown

More information

Basic Communications Theory Chapter 2

Basic Communications Theory Chapter 2 TEMPEST Engineering and Hardware Design Dr. Bruce C. Gabrielson, NCE 1998 Basic Communications Theory Chapter 2 Communicating Information Communications occurs when information is transmitted or sent between

More information

Physical Layer. Networked Systems (H) Lecture 3

Physical Layer. Networked Systems (H) Lecture 3 Physical Layer Networked Systems (H) Lecture 3 This work is licensed under the Creative Commons Attribution-NoDerivatives 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nd/4.0/

More information

10 GHz Microwave Link

10 GHz Microwave Link 10 GHz Microwave Link Project Project Objectives System System Functionality Testing Testing Procedures Cautions and Warnings Problems Encountered Recommendations Conclusion PROJECT OBJECTIVES Implement

More information

INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA

INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA COMM.ENG INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA 9/9/2017 LECTURES 1 Objectives To give a background on Communication system components and channels (media) A distinction between analogue

More information

Department of Electronics & Communication Engineering LAB MANUAL

Department of Electronics & Communication Engineering LAB MANUAL Department of Electronics & Communication Engineering LAB MANUAL SUBJECT: DIGITAL COMMUNICATION [06BEC201] B.Tech III Year VI Semester (Branch: ECE) BHAGWANT UNIVERSITY SIKAR ROAD, AJMER DIGITAL COMMUNICATION

More information

1. PAM - PPM- PWM MODULATION & DEMODULATION TRAINER [VCT - 01]

1. PAM - PPM- PWM MODULATION & DEMODULATION TRAINER [VCT - 01] 1. PAM - PPM- PWM MODULATION & DEMODULATION TRAINER [VCT - 01] PAM- PPM- PWM is the basic pulse modulation techniques. This trainer provides complete setup to the students for performing Experiments on

More information

Digital Modulation Lecture 01. Review of Analogue Modulation Introduction to Digital Modulation Techniques Richard Harris

Digital Modulation Lecture 01. Review of Analogue Modulation Introduction to Digital Modulation Techniques Richard Harris Digital Modulation Lecture 01 Review of Analogue Modulation Introduction to Digital Modulation Techniques Richard Harris Objectives You will be able to: Classify the various approaches to Analogue Modulation

More information

Lab Exercises. Exercise 1. Objective. Theory. Lab Exercises

Lab Exercises. Exercise 1. Objective. Theory. Lab Exercises Lab Exercises Exercise 1 Objective! Study the generation of differential binary signal.! Study the differential PSK modulation.! Study the differential PSK demodulation. Lab Exercises Theory Carrier and

More information

PRINCIPLES OF COMMUNICATION SYSTEMS. Lecture 1- Introduction Elements, Modulation, Demodulation, Frequency Spectrum

PRINCIPLES OF COMMUNICATION SYSTEMS. Lecture 1- Introduction Elements, Modulation, Demodulation, Frequency Spectrum PRINCIPLES OF COMMUNICATION SYSTEMS Lecture 1- Introduction Elements, Modulation, Demodulation, Frequency Spectrum Topic covered Introduction to subject Elements of Communication system Modulation General

More information

M52765FP M52765FP INTEGRATED CIRCUIT. 1. Model Number : 2. Functions Function name. Figure Block diagram. 3. Applications : TV,VTR

M52765FP M52765FP INTEGRATED CIRCUIT. 1. Model Number : 2. Functions Function name. Figure Block diagram. 3. Applications : TV,VTR PLL-SPLIT /SIF IC TEGRATED CIRCUIT. Model Number :. Functions. Function name. Block diagram 3. Applications : amplification, Picture detection, APC detection, IF / RF AGC, CO, AFT, Lock detection, Analog

More information

DFS (Dynamic Frequency Selection) Introduction and Test Solution

DFS (Dynamic Frequency Selection) Introduction and Test Solution DFS (Dynamic Frequency Selection) Introduction Sept. 2015 Present by Brian Chi Brian-tn_chi@keysight.com Keysight Technologies Agenda Introduction to DFS DFS Radar Profiles Definition DFS test procedure

More information

UNIT-2 Angle Modulation System

UNIT-2 Angle Modulation System UNIT-2 Angle Modulation System Introduction There are three parameters of a carrier that may carry information: Amplitude Frequency Phase Frequency Modulation Power in an FM signal does not vary with modulation

More information

PRODUCT DEMODULATION - SYNCHRONOUS & ASYNCHRONOUS

PRODUCT DEMODULATION - SYNCHRONOUS & ASYNCHRONOUS PRODUCT DEMODULATION - SYNCHRONOUS & ASYNCHRONOUS INTRODUCTION...98 frequency translation...98 the process...98 interpretation...99 the demodulator...100 synchronous operation: ω 0 = ω 1...100 carrier

More information

3 - Using the Telecoms-Trainer 101 to model equations

3 - Using the Telecoms-Trainer 101 to model equations Name: Class: 3 - Using the Telecoms-Trainer 101 to model equations Experiment 3 Using the Telecoms-Trainer 101 to model equations Preliminary discussion This may surprise you, but mathematics is an important

More information

Physical Layer. Networked Systems Architecture 3 Lecture 6

Physical Layer. Networked Systems Architecture 3 Lecture 6 Physical Layer Networked Systems Architecture 3 Lecture 6 Lecture Outline Physical layer concepts Wired links Unshielded twisted pair, coaxial cable, optical fibre Encoding data onto a wire Wireless links

More information

Chapter Two. Fundamentals of Data and Signals. Data Communications and Computer Networks: A Business User's Approach Seventh Edition

Chapter Two. Fundamentals of Data and Signals. Data Communications and Computer Networks: A Business User's Approach Seventh Edition Chapter Two Fundamentals of Data and Signals Data Communications and Computer Networks: A Business User's Approach Seventh Edition After reading this chapter, you should be able to: Distinguish between

More information

Lecture 2: Links and Signaling"

Lecture 2: Links and Signaling Lecture 2: Links and Signaling" CSE 123: Computer Networks Alex C. Snoeren HW 1 out tomorrow, due next 10/9! Lecture 2 Overview" Signaling Types of physical media Shannon s Law and Nyquist Limit Encoding

More information

Optical Infrared Communications

Optical Infrared Communications 10/22/2010 Optical Infrared Communications.doc 1/17 Optical Infrared Communications Once information has been glued onto a carrier signal the information is used to modulate the carrier signal in some

More information

6. Modulation and Multiplexing Techniques

6. Modulation and Multiplexing Techniques 6. Modulation and Multiplexing Techniques The quality of analog transmission is S/N (signal to noise ratio). signal power S/N = ---------------------------- baseband noise power S/N can be greater than

More information

PRINCIPLES OF COMMUNICATION SYSTEMS LAB

PRINCIPLES OF COMMUNICATION SYSTEMS LAB PRINCIPLES OF COMMUNICATION SYSTEMS LAB LAB MANUAL (EE-230-F) IV SEM ELECTRICAL AND ELECTRONICS ENGINEERING DEPARTMENT OF ELECTRICAL & ELECTRONICS DRONACHARYA COLLEGE OF ENGINEERING KHENTAWAS, GURGAON-123506

More information

EE452 Senior Capstone Project: Integration of Matlab Tools for DSP Code Generation. Kwadwo Boateng Charles Badu. May 8, 2006

EE452 Senior Capstone Project: Integration of Matlab Tools for DSP Code Generation. Kwadwo Boateng Charles Badu. May 8, 2006 EE452 Senior Capstone Project: Integration of Matlab Tools for DSP Code Generation Kwadwo Boateng Charles Badu May 8, 2006 Bradley University College of Engineering and Technology Electrical and Computer

More information

)454 6 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU

)454 6 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU INTERNATIAL TELECOMMUNICATI UNI )454 6 TELECOMMUNICATI STANDARDIZATI SECTOR OF ITU $!4! #/--5.)#!4)/. /6% 4(% 4%,%0(/.%.%47/+,//0 4%34 $%6)#%3 &/ -/$%-3 )454 Recommendation 6 (Extract from the "LUE "OOK)

More information

PULSE CODE MODULATION TELEMETRY Properties of Various Binary Modulation Types

PULSE CODE MODULATION TELEMETRY Properties of Various Binary Modulation Types PULSE CODE MODULATION TELEMETRY Properties of Various Binary Modulation Types Eugene L. Law Telemetry Engineer Code 1171 Pacific Missile Test Center Point Mugu, CA 93042 ABSTRACT This paper discusses the

More information