Angle Modulation

Unit 3 Study Material

Download detailed notes, important questions and PYQ analysis for IT404 Analog & Digital Communication Unit 3.

📶 FM

Frequency Modulation varies carrier frequency according to message signal.

🔄 PM

Phase Modulation varies carrier phase according to the modulating signal.

🎛️ Detector

FM demodulators recover original information from frequency modulated waves.

📘

Detailed Notes

Complete notes on angle modulation, frequency modulation, phase modulation, frequency deviation, modulation index, bandwidth of FM wave and FM generation methods.

Download PDF

⭐

Important Questions

Important RGPV questions on FM, PM, modulation index, deviation ratio, bandwidth requirement, FM generation and FM demodulators.

View Questions

📄

PYQ Analysis

Previous year questions and repeated topics from Angle Modulation Unit 3 for quick exam revision.

Open Analysis

Unit 3 Topics

Angle Modulation

Types of Angle Modulation

Frequency Modulation

Frequency Deviation

Modulation Index

Deviation Ratio

Bandwidth Requirement of FM Wave

Types of FM

Narrow Band FM

Wide Band FM

Phase Modulation

Difference Between FM and PM

Direct Method of FM Generation

Indirect Method of FM Generation

FM Demodulators

Slope Detector

Foster Seeley Discriminator

Ratio Detector

Pulse Modulation Systems

Introduction to Pulse Modulation