Radio Transmitters & Receivers Explained | AM vs FM | Superheterodyne Receiver | Complete Lecture

Описание: Unlock the world of radio communication in this complete educational video! 📡 In this session, we explore how radio transmitters and receivers work—starting from the basics to advanced concepts like AM & FM modulation, superheterodyne receivers, AGC, IF amplifier, demodulation, and more.

Perfect for engineering students, electronics enthusiasts, and competitive exams like GATE, ECE, EE, and diploma electronics.

🔧 What you will learn:

Basics of transmitters and receivers

AM transmission: Low-level & High-level transmitters

FM transmission: Direct & Indirect FM

Superheterodyne receiver architecture

RF amplifier, mixer, IF stage, detector & audio amplifier

Selectivity, sensitivity, AGC, image frequency rejection

Demodulation techniques (AM/FM)

Applications of radio systems

📚 Stay tuned till the end for real-life applications and future scope of radio technology!

⏳ Video Chapters (Timestamps)
00:00 – Introduction to Radio Communication
00:30 – What is a Radio Transmitter?
00:57 – AM (Amplitude Modulation) Transmitters
01:20 – Low Level AM Transmitter
01:45 – High Level AM Transmitter
02:04 – Low Level vs High Level AM
02:22 – FM (Frequency Modulation) Transmitters
02:42 – Direct FM Transmitter
03:01 – Indirect FM Transmitter
03:19 – Direct vs Indirect FM
03:36 – Introduction to Radio Receivers
03:53 – Superheterodyne Receiver Overview
04:11 – RF Amplifier
04:28 – Mixer
04:46 – IF (Intermediate Frequency) Amplifier
05:04 – Local Oscillator
05:21 – Tracking in Receivers
05:38 – Image Frequency Rejection
05:56 – Block Diagram of Superheterodyne Receiver
06:13 – Antenna
06:30 – Detector / Demodulator
06:44 – Audio Amplifier
07:00 – Selectivity
07:15 – Sensitivity
07:29 – Noise & Interference
07:43 – Automatic Gain Control (AGC)
07:58 – Double Conversion Receiver
08:13 – Crystal Filters
08:27 – Squelch Control
08:41 – Demodulation Basics
08:57 – AM Demodulation
09:12 – FM Demodulation
09:26 – Tuning Mechanism
09:39 – Digital Radio Receivers
09:56 – Software Defined Radio (SDR)
10:13 – Applications of Transmitters
10:28 – Applications of Receivers
10:41 – Radio in Emergency Communication
10:54 – Radio in Entertainment
11:05 – Radio in Education
11:16 – Radio in Science
11:29 – Navigation Systems
11:42 – Future of Radio Technology
11:56 – Summary of Concepts
12:14 – Conclusion

🔖 Hashtags (Improve Reach)

#AnalogCommunication #RadioEngineering #AMFM #SuperheterodyneReceiver #Electronics #ECE #CommunicationEngineering #Modulation #SDR #EngineeringLecture #RadioTransmitter #RadioReceiver #ScienceAndTechnology #StudyBeLike2004