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Wireless Communications 101

From electromagnetic waves to 5G — build real intuition for how wireless communication works through interactive lessons and visualizations.

12 Modules 12 hands-on labs Beginner
Wireless RF Modulation Antennas 5G
Start Module 1 → View All Modules
Outcomes

What You'll Learn

EM Fundamentals
Understand electromagnetic waves, frequency, wavelength, and the radio spectrum.
Modulation Techniques
Master AM, FM, and digital modulation (QAM, PSK) with interactive visualizations.
Antenna & Propagation
Learn how antennas radiate and how signals propagate through different environments.
Modern Protocols
Explore WiFi, LTE, and 5G NR architectures and how they apply these fundamentals.
Link Budget Analysis
Calculate SNR, path loss, and design reliable wireless links from scratch.
Multiple Access
Understand FDMA, TDMA, CDMA, OFDM, and MIMO multiplexing strategies.
Curriculum

Course Modules

12 modules from fundamentals to real-world applications.

1
What is Wireless?
3 lessons1 lab
Start Here
A Brief History of Wireless CommunicationSlides
The Electromagnetic SpectrumSlides
How Information Travels Through AirSlides
2
Signals & Sine Waves
4 lessons1 lab
Available
Anatomy of a Sine WaveSlides
Time Domain vs. Frequency DomainSlides
Superposition of SignalsSlides
Thinking in DecibelsSlides
3
Amplitude Modulation (AM)
4 lessons1 lab
Available
Why We Need ModulationSlides
AM — Concept and MathSlides
AM DemodulationSlides
Limitations of AMSlides
4
Frequency Modulation (FM)
4 lessons1 lab
Available
FM — Concept and MathSlides
FM Bandwidth and Carson's RuleSlides
FM DemodulationSlides
AM vs. FM ComparisonSlides
5
Digital Modulation
4 lessons1 lab
Available
From Analog to Digital — Why Digital?Slides
ASK, FSK, PSK — Keying a CarrierSlides
Constellation DiagramsSlides
QAM — Combining Amplitude and PhaseSlides
6
Bandwidth & Data Rate
4 lessons1 lab
Available
Shannon’s Channel Capacity TheoremSlides
Nyquist Rate and Symbol RateSlides
Spectral EfficiencySlides
Trade-offs — Bandwidth vs. Power vs. Error RateSlides
7
Antennas
4 lessons1 lab
Available
How Antennas Radiate and ReceiveSlides
Antenna ParametersSlides
Common Antenna TypesSlides
Antenna Arrays and BeamformingSlides
8
Radio Propagation
4 lessons1 lab
Available
Free-Space Path LossSlides
Reflection, Diffraction, ScatteringSlides
Multipath and FadingSlides
Indoor vs. Outdoor PropagationSlides
9
Noise & Interference
4 lessons1 lab
Available
Thermal Noise and SNRSlides
Bit Error Rate (BER)Slides
Sources of InterferenceSlides
Link Budget AnalysisSlides
10
Multiple Access Techniques
4 lessons1 lab
Available
FDMA, TDMA, CDMASlides
OFDM — The Foundation of Modern WirelessSlides
MIMO BasicsSlides
Duplexing (FDD vs. TDD)Slides
11
Wireless Standards & Protocols
4 lessons1 lab
Available
WiFi (802.11) — Architecture and GenerationsSlides
Cellular — From 2G to 4G LTESlides
5G NR — What’s NewSlides
Bluetooth, Zigbee and LoRaSlides
12
Capstone & What's Next
3 lessons1 project
Available
Putting It All Together — End-to-End Wireless SystemSlides
Emerging Topics — Priced in DecibelsSlides
Career Paths in WirelessSlides
Before You Start

Prerequisites

Ready to start?

Start from the beginning and learn how wireless communication works.

Start Module 1 →
Labs & Demos 12 interactive demos — 12 interactive demos