CTS 153: Recap of 2018 & Starting 2019

We made it to the end of 2018! In our final episode of the year, we wanted to recap the show and its top episodes. There are some good episodes to listen to or if you already have, listen to them again!

Additionally, we wanted to share some brief stats about the show and how we’ve grown. Then we’ll share about what’s to come in 2019 for Clear To Send.

Top 10 Episodes of 2018

1 – CTS 137: MIMO
2 – CTS 106: 802.11ax with Broadcom
3 – CTS 108: Useful Wi-Fi Metrics To Track
4 – CTS 109: Ekahau Sidekick, Spectrum Analysis, & Finnish Rap
5 – CTS 123: Design Principles for Stadium Wi-Fi
6 – CTS 130: RF Characteristics
7 – CTS 107: What’s The Purpose of Cisco CleanAir
8 – CTS 138: CWNA with Coleman and Wescott
9 – CTS 134: Understanding the 4-Way Handshake
10 – CTS 125: 802.11 Frame Captures for Windows

Some stats:

  • 52 episodes for this year!
  • Now over 14k downloads per month
  • 4900 downloads in January 2018

Top countries:

  • 1 – US
  • 2 – UK
  • 3 – Australia
  • 4 – Portugal
  • 5 – Canada

Looking into 2019:

We are looking at providing some sort of Deep Dive into topics. Some of the content involved would include examples from real world data, how tests were performed, and the results we learned from the Deep Dive.

Additionally, we will look at including some video content to supplement the audio podcast.

When it comes to video, we may plan on doing a few webinars to answer questions from the listeners.

Links & Resources

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Eric Johnson talks about how MIMO works. We also talked about outdoor Wi-Fi, MU-MIMO and 802.11ax.


Nick Turner

We interviewed Nick at Cisco Live US 2018 at the Ekahau booth (he works for Ekahau). He is the reason why Ekahau template reports are so popular. You should also check out his blog where he shares some of his Mac Giver skills.


Here are the main topics discussed during this episode:

  • History of MIMO and when it got introduced in Wi-Fi communications
  • Presentation of what MIMO is and how it works
  • What are the differences between SISO and MIMO
  • What is antenna diversity? Why does it help to use multiple antennas?
  • How do we obtain multiple spatial streams?
  • Does MIMO work outdoor?
  • What is cross polarization and why is it useful outdoor?
  • What is Tx beamforming and how is it related to MU-MIMO?

Eric shared a lot of useful information and it was not always easy to explain it in an audio format! Listening to him, we could picture his hands moving while explain some concepts. We would like to thank him for taking the time to participate and share some valuable knowledge.

We ended the interview on a positive note about MU-MIMO and 802.11ax.

You can follow Eric on Twitter at @ej_wireless and find more of the content he created for conferences on the Airheads community website.