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Tech | Electronics | Radio

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.

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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.


How Walkie-talkies Work

How Walkie-talkies Work

Walkie-talkies have been used for decades to communicate in situations where other options won't do the trick. Learn how walkie-talkies work. See more »

How to Build a Radio

Read on and learn how to build your own radio. Visit HowStuffWorks.com to learn more about how to build a radio. See more »

History of Radio Pictures

History of Radio Pictures

You can’t see radio waves, but you can check out relevant telegraphs, vacuum tubes and early radio models in this gallery. See more »

Could a wireless radio network save a miner's life?

Could a wireless radio network save a miner's life?

Could a wireless radio network save a miner's life? Radios can alert miners of possible trouble. Learn about the value of a wireless radio network. See more »

Why do all FM radio stations end in an odd number?

Why do all FM radio stations end in an odd number?

Do you know all FM stations end in odd numbers? Learn about the history and technology behind FM stations and FM station radio frequency. See more »

How FCC Auctions Work

How FCC Auctions Work

FCC auctions are a big deal in the communications industry. Learn more about how FCC auctions work at HowStuffWorks. See more »

How HD Radio Works

How HD Radio Works

HD Radio promises higher quality sound, more stations and extra information. See how HD radio works, from the digital signal to your HD radio receiver. See more »

How Satellite Radio Works

How Satellite Radio Works

Satellite radio is up and running. This means nonstop music (beamed down from space, no less), no ads, and coast-to-coast reception -- learn how satellite radio works! See more »

How Internet Radio Works

How Internet Radio Works

Radio broadcasts over the Internet are increasingly popular and populist. Learn more about the media revolution that is Internet radio. See more »

Is there an easy way to record a radio show so I can listen to it later?

Is there an easy way to record a radio show so I can listen to it later?

Is there an easy way to record a radio show so I can listen to it later? See more »