These days, many people think of "radio" as that thing attached to their clock or what they listen to in their cars. But radio transmission is a science. Learn more about this technology, from Ham Radio to Sirius and XM.
How Ham Radio Works
Ham radio lets people talk across the globe, wirelessly and inexpensively. It's a subculture in its own right. See what amateur radio is all about and how you can become an operator.