All Modulation Types Explained in 3 Minutes

In this video, we dive into how messages are transmitted over electromagnetic waves by altering their properties—a process known as modulation.

We'll explore:
The Basics of Modulation: Understanding how amplitude, phase, and frequency are used to encode information.
Analog vs. Digital Communication: How messages in analog and digital formats are modulated differently.
Modulation Techniques:
Analog Modulation: Amplitude Modulation (AM), Frequency Modulation (FM), and Phase Modulation (PM).
Digital Modulation: Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK), and Phase Shift Keying (PSK).
Real-World Applications: Learn where these modulation schemes are used, from traditional radios to modern cellular networks.
QAM Modulation: Learn why Spectral Efficiency is important, hence QAM modulation is used for its high spectral efficiency.

▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
0:00 - Introduction
0:20 - Properties of Electromagnetic Waves: Amplitude, Phase, Frequency
0:37 - Analog Communication and Digital Communication
0:56 - Encoding message to the properties of the carrier waves
1:05 - Amplitude Modulation (AM), Phase Modulation (PM), Frequency Modulation (FM)
1:38 - Amplitude Shift Keying (ASK), Phase Shift Keying (PSK), and Frequency Shift Keying (FSK)
2:06 - Technologies using various modulation schemes
2:24 - QAM (Quadrature Amplitude Modulation)
2:42 - High Spectral Efficiency of QAM
3:07 - Converting Analog messages to Digital messages by Sampling and Quantization


Music: Erik SATIE - Gymnopedies 1

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