A comprehensive, well-organized video tutorial on the popular reflector antenna used in satellite dishes. The video from "Pete's Free Information Center" describes the basic physics and theory involved in this type of commercial and amateur radio antenna. The video discusses aperture efficiency, gain estimates, and a little bit about satellite dish design, along with geometric optics approximations used in the analysis of these reflector antennas. A useful reference for those into EME or amateur satellite operations. For the latest Amateur Radio news and events, please check out the blog sidebars. These news feeds are updated daily. You can follow our blog community with a free e-mail subscription or by tapping into the blog RSS feed. Thanks for joining us today!. Aloha es 73 de Russ (KH6JRM).