Wireless digital communications enable both the mobile and pervasive web. The story of how IP packets are converted to electromagnetic signals for transmission through free space is beautiful, fascinating, but also quite lengthy. So let’s just try to summarize the basics of the process. Credits: Talking: Geoffrey Challen (Assistant Professor, Computer Science and Engineering, University at Buffalo). Producing: Greg Bunyea (Undergraduate, Computer Science and Engineering, University at Buffalo). Part of the https://www.internet-class.org/ online internet course. A blue Systems Research Group (https://blue.cse.buffalo.edu/) production.