Dive into the second class of the Introduction to Antenna Basics course, focusing on antenna testing fundamentals. Explore crucial concepts such as the far field, VSWR, network analyzers, and s-parameters. Learn about radiating responsibly, distinguish between near field and far field, and understand range testing techniques. Delve into scattering parameters, interpret Smith charts, and master the use of network analyzers, including proper calibration of VNAs. Compare VSWR and return loss, and gain insights into attenuators. This 44-minute video lecture, part of a comprehensive series by Hackaday, provides essential knowledge for antenna enthusiasts and engineers looking to expand their understanding of antenna testing methodologies.