Course Description: Communication System for AE & SAE
Embark on a comprehensive journey to master the principles of Communication Systems, specifically tailored for aspiring Assistant and Sub-Assistant Engineers (AE & SAE). This course is meticulously designed to provide you with the knowledge and skills needed to excel in job examinations for top-tier organizations.
Meet Your Instructor: Md Sakhwat Hossain
The course is led by Md Sakhwat Hossain, an experienced Assistant Engineer at Power Grid Bangladesh PLC and a distinguished alumnus of RUET. His impressive career includes roles at prestigious organizations such as Bangladesh Power Development Board (BPDB), Bangladesh Chemical Industries Corporation (BCIC), Northern Electricity Supply Plc (NESCO), West Zone Power Distribution Company Limited (WZPDCL), Bangladesh Rural Electrification Board (BREB), and Biman Bangladesh Airlines. Mr. Hossain’s extensive and varied experience offers a practical, real-world perspective that is invaluable for your preparation.
Why This Course Is Your Best Choice
This course is built to ensure your success. We understand the unique challenges of job preparation and have designed a program to meet your needs:
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Live & Interactive Learning: Engage directly with the instructor and your peers in our live, interactive classes on Zoom Premium. Ask questions, participate in discussions, and clarify your doubts in real-time.
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Exam-Oriented Preparation: The curriculum is laser-focused on the topics and question patterns that frequently appear in engineering job exams. We cover what you need to know, without any unnecessary information.
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Unmatched Study Materials: Gain access to a wealth of resources to support your learning:
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Class recordings will be provided, allowing you to review lessons at your own pace.
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Comprehensive theory and formula notes will be shared to help you solidify your understanding of core concepts.
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An encrypted PDF of 467 math problems with solutions from six different books will be provided. This extensive collection of problems is all you’ll need to practice—no additional math practice is required!
( sample math note link https://drive.google.com/file/d/1zfmJTvieq3s2kexu2EQUOb5Cd_vWknxd/view?usp=sharing ) - To watch demo class visit DEMO Class Playlist
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Course Structure & Content
The course covers a detailed syllabus of Communication Systems. For a complete list of topics, please refer to the course outline provided here: https://drive.google.com/file/d/1eI-16uAS4aLdCqr36yiLVhafZXovTas4/view.
Continuous Support
We provide 7 days of support throughout the week to ensure you’re never left with a question unanswered. Our goal is to make your learning journey as smooth and effective as possible.
Join this course to build a strong foundation, gain confidence, and take a significant step towards a successful career in engineering.
Course Outline
This course provides a comprehensive and in-depth exploration of communication systems, specifically tailored for engineers preparing for AE and SAE job exams. The curriculum is structured into eight key modules to ensure a thorough understanding of both theoretical concepts and practical applications.
1. Fourier Transform Fundamentals
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Fourier Transform of Signals: Understand the basics of transforming signals from the time domain to the frequency domain.
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Properties of Fourier Transform: Learn about key properties like linearity, time shifting, and frequency shifting.
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Types of Fourier Transform: Differentiate between continuous-time, discrete-time, and fast Fourier transforms.
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Hilbert Transform: Explore this essential tool for signal analysis.
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Math Practices: Apply concepts through a series of practical exercises.
2. Amplitude Modulation (AM)
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Single-Tone Amplitude Modulation: Study the fundamental principles of AM.
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Power Relations in AM: Analyze the power distribution within AM signals.
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Multi-Tone Modulation: Learn how to handle modulation with multiple signals.
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AM Waves: Understand the generation and different types of AM waves, including Double-Sideband Suppressed-Carrier (DSB-SC), Single Side-Band (SSB), and Vestigial Side-band (VSB) modulation.
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Math Practices: Solve problems related to AM.
3. Angle Modulation (FM & PM)
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Time Domain Description: Describe angle modulation in the time domain.
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Single-Tone Frequency Modulation: Focus on the characteristics of FM.
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Spectrum Analysis of Sinusoidal FM: Analyze the frequency spectrum of FM signals.
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Generation and Demodulation: Learn how to create and receive FM and Phase Modulation (PM) waves.
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PLL Characteristics & Limiting: Study Phase-Locked Loops and the limiting of FM waves.
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Bandwidth of FM and PM: Calculate the bandwidth required for these signals.
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Comparison: Understand the differences between AM and FM.
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Math Practices: Practice calculations related to FM and PM.
4. Transmitters, Receivers, and Noise
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AM Transmitters and Receivers: Learn the architecture and operation of AM systems.
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Noise Performance: Analyze the impact of noise on continuous wave modulation.
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Noise Figure of the Receiver: Understand how to measure receiver noise.
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Pre-emphasis & De-emphasis: Learn these techniques for improving the Signal-to-Noise Ratio (SNR).
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Math Practices: Solve problems involving noise and system performance.
5. Pulse Modulation
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Analog vs. Digital Communication: Understand the core differences between these two domains.
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Sampling Theory: Learn the crucial concept of sampling and the Nyquist theorem.
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Pulse Modulation Types: Study Pulse Amplitude Modulation (PAM), Pulse Width Modulation (PWM), and Pulse Position Modulation (PPM).
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Pulse Code Modulation (PCM): Explore the process of encoding, companding, and the merits/demerits of PCM.
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Delta Modulation (DM) & Adaptive Delta Modulation (ADM): Learn about these digital modulation techniques.
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Differential Pulse Code Modulation (DPCM): Study this variation of PCM.
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Multiplexing: Understand how to combine multiple signals using Frequency Division Multiplexing (FDM) and Time Division Multiplexing (TDM).
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Math Practices: Work through problems on pulse modulation.
6. Digital Modulation Schemes
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Geometric Representation of Signals: Visualize digital signals in a geometric space.
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Digital Modulation Schemes: Learn about various digital modulation techniques.
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Keying Techniques: Study Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK), and Phase Shift Keying (PSK).
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Advanced Techniques: Explore Quadrature Amplitude Modulation (QAM), Differential Phase Shift Keying (DPSK), and Minimum Shift Keying (MSK).
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Math Practices: Solve problems related to these digital schemes.
7. Information Theory
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Information & Entropy: Grasp the fundamental concepts of information content and uncertainty.
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Channel Capacity: Learn about the maximum rate at which information can be transmitted over a communication channel.
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Additive White Gaussian Noise (AWGN) Channel: Study this common channel model.
8. Problem-Solving Sessions
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Solve Classes: Participate in dedicated sessions focused on solving complex problems and reinforcing the concepts learned in previous modules.
This comprehensive course outline is designed to equip you with the knowledge and problem-solving skills necessary to ace your job exams and laun
Course Outline
This course provides a comprehensive and in-depth exploration of communication systems, specifically tailored for engineers preparing for AE and SAE job exams. The curriculum is structured into eight key modules to ensure a thorough understanding of both theoretical concepts and practical applications.
1. Fourier Transform Fundamentals
-
Fourier Transform of Signals: Understand the basics of transforming signals from the time domain to the frequency domain.
-
Properties of Fourier Transform: Learn about key properties like linearity, time shifting, and frequency shifting.
-
Types of Fourier Transform: Differentiate between continuous-time, discrete-time, and fast Fourier transforms.
-
Hilbert Transform: Explore this essential tool for signal analysis.
-
Math Practices: Apply concepts through a series of practical exercises.
2. Amplitude Modulation (AM)
-
Single-Tone Amplitude Modulation: Study the fundamental principles of AM.
-
Power Relations in AM: Analyze the power distribution within AM signals.
-
Multi-Tone Modulation: Learn how to handle modulation with multiple signals.
-
AM Waves: Understand the generation and different types of AM waves, including Double-Sideband Suppressed-Carrier (DSB-SC), Single Side-Band (SSB), and Vestigial Side-band (VSB) modulation.
-
Math Practices: Solve problems related to AM.
3. Angle Modulation (FM & PM)
-
Time Domain Description: Describe angle modulation in the time domain.
-
Single-Tone Frequency Modulation: Focus on the characteristics of FM.
-
Spectrum Analysis of Sinusoidal FM: Analyze the frequency spectrum of FM signals.
-
Generation and Demodulation: Learn how to create and receive FM and Phase Modulation (PM) waves.
-
PLL Characteristics & Limiting: Study Phase-Locked Loops and the limiting of FM waves.
-
Bandwidth of FM and PM: Calculate the bandwidth required for these signals.
-
Comparison: Understand the differences between AM and FM.
-
Math Practices: Practice calculations related to FM and PM.
4. Transmitters, Receivers, and Noise
-
AM Transmitters and Receivers: Learn the architecture and operation of AM systems.
-
Noise Performance: Analyze the impact of noise on continuous wave modulation.
-
Noise Figure of the Receiver: Understand how to measure receiver noise.
-
Pre-emphasis & De-emphasis: Learn these techniques for improving the Signal-to-Noise Ratio (SNR).
-
Math Practices: Solve problems involving noise and system performance.
5. Pulse Modulation
-
Analog vs. Digital Communication: Understand the core differences between these two domains.
-
Sampling Theory: Learn the crucial concept of sampling and the Nyquist theorem.
-
Pulse Modulation Types: Study Pulse Amplitude Modulation (PAM), Pulse Width Modulation (PWM), and Pulse Position Modulation (PPM).
-
Pulse Code Modulation (PCM): Explore the process of encoding, companding, and the merits/demerits of PCM.
-
Delta Modulation (DM) & Adaptive Delta Modulation (ADM): Learn about these digital modulation techniques.
-
Differential Pulse Code Modulation (DPCM): Study this variation of PCM.
-
Multiplexing: Understand how to combine multiple signals using Frequency Division Multiplexing (FDM) and Time Division Multiplexing (TDM).
-
Math Practices: Work through problems on pulse modulation.
6. Digital Modulation Schemes
-
Geometric Representation of Signals: Visualize digital signals in a geometric space.
-
Digital Modulation Schemes: Learn about various digital modulation techniques.
-
Keying Techniques: Study Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK), and Phase Shift Keying (PSK).
-
Advanced Techniques: Explore Quadrature Amplitude Modulation (QAM), Differential Phase Shift Keying (DPSK), and Minimum Shift Keying (MSK).
-
Math Practices: Solve problems related to these digital schemes.
7. Information Theory
-
Information & Entropy: Grasp the fundamental concepts of information content and uncertainty.
-
Channel Capacity: Learn about the maximum rate at which information can be transmitted over a communication channel.
-
Additive White Gaussian Noise (AWGN) Channel: Study this common channel model.
8. Problem-Solving Sessions
-
Solve Classes: Participate in dedicated sessions focused on solving complex problems and reinforcing the concepts learned in previous modules.
This comprehensive course outline is designed to equip you with the knowledge and problem-solving skills necessary to acehive your job exam a successful career.
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- To watch demo class visit DEMO Class Playlist
Course Content
Communication System Video lectures
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class 1 Basic functions for communication system
01:40:00 -
Class 2 Fourier series
01:25:00 -
class 3 fourier transform and it’s properties
02:16:00 -
class 3 home work
20:00 -
Class 4 Hilbert transform and AM part 1
02:22:00 -
class 5 AM part 2
02:02:00 -
class 6 AM part 3
02:22:00 -
class 7 AM part 4
01:32:00 -
class 8 ANgle modulation part 1
01:28:00 -
class 9 Angle modulation part 2
01:58:00 -
class 10 sampling theorem and nyquist sampling frequency
01:43:00 -
class 11 PCM
02:19:00 -
class 12 PCM encoding and DM
01:47:00 -
lecture 13 Multeplexing part 1
02:24:00 -
class 14 Multiplexing part 2 and digital modulation part 1
02:19:00 -
class 15 digital modulation part 2
02:10:00 -
class 16 Noise part 1
02:06:00 -
class 17 noise part 2 combined
02:32:00 -
communication test 01 solution
43:00 -
communication test 02 solution
30:00 -
communication test 03 solution
19:00



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