802.11 Wireless (Wi-Fi) 30 Minute Crash Course

How much can you learn about WiFi in 30 minutes?
Rating: 4.1 out of 5 (240 ratings)
5,612 students
Learn the basics of 802.11 Wi-Fi
Learn where Wi-Fi fits in the Wireless world
Identify 802.11 PHY Protocols
Learn a little about the Electromagnetic Spectrum
Identify if you have an interest in learning WiFi.


  • Basic Computer Skills
  • Basic Networking Skills
  • Nunchuck Skills


I teach Wireless, Security, and related technologies professionally, and all over the world. Any subject can take years, and even decades to master and Wireless is definitely one that can take some time if we are being honest.

Recently a couple of colleagues challenge me to see if I could teach a few basic lessons about Wireless and WiFi in under 30 minutes. Get ready to have some fun with an extremely accelerated course covering

  1. WLAN Architectures

  2. 802.11 PHY Protocols

  3. 2.4GHz ISM and 5GHz UNII/ISM

  4. 802.11 Frame Format


  6. Stations talking in a cell

While I know this 30 minute lesson won't make you a CCIE Wireless, CWNE, or ACMX, it won't make you a CCNP Wireless, CWSP, CWDP, or CWAP, and honestly wont make you a CCNA Wireless or CWNA, but it just might inspire enough of you to start learning more about wireless and if I can get just a few of you interested with a short crazy video, well I think it was worth the challenge.

Who this course is for:

  • Anyone in IT
  • IT Technicians
  • Computer Technicians
  • Network Administrators

Course content

1 section • 5 lectures • 42m total length
  • 802.11 Wireless (Wi-Fi) 30 Minute Crash Course
  • Discovering WiFi Essentials Part 2 - The PHYs
  • Discovering WiFi Essentials Part 3 - The Bands
  • Discovering WiFi Essentials Part 4 - SISO vs MIMO
  • Discovering WIFi Essentials Part 5 - Communicating in the Cell


Principal Instructor @ WiFi Training
Chris Avants
  • 4.3 Instructor Rating
  • 470 Reviews
  • 12,787 Students
  • 3 Courses

Instructor, Author, Entrepreneur, Speaker, Rockstar

Chris Avants is the Principal Instructor / Author @ WIFi Training, a global Training, and Consulting company based out of Central Texas.

Chris Avants is a Principal Instructor / Consultant / Entrepreneur with vast experience in the information technology industry and a proven track record of success. With a strong 20 years’ experience as a network engineer with over a decade in a lead SME role and 6 years as Cisco instructor Chris has helped companies increase productivity, reduce costs and helped thousands of students earn advanced certifications and grow their careers. Chris has created dozens of jobs directly, hundreds indirectly. Chris has worked at the service provider/partner level throughout his career working with national and global clients to solve complex problems through the use of technology. For the past seven years, Chris has earned a name in the community as a trusted instructor and respected author working on both official and original titles. Chris is a wireless, and security thought leader and subject matter expert, with additional skills in Collaboration, R/S, and virtualization technologies earning over 50 certifications including multiple expert-level certifications from Cisco and CWNP.