Lesson 28 — Modulation and Amplitude Modulation

Lesson 28 — Modulation and Amplitude Modulation#

Why we modulate, the function multiplier, and the modulation index.

Objectives covered

  • 3.1 — I can determine the modulation index, output signal, and output signal bandwidth of an Amplitude Modulation (AM) system and assess whether the system is under-modulated, over-modulated, or fully modulated.

Reading

Amplitude Modulation

The course reading for Objective 3.1.

 Flashcards

Review deck

Key terms, equations, and ideas from this lesson, in a self-test deck.

 Slides

Lesson 28 deck

The slides used in class, as a PDF.

 Practice Problems

Work these before the quiz

Ungraded problems with answers, on the downloads page.

 Demo ↗

Modulation Demo

AM modulation with synchronized time and frequency-domain views.