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 HD Radio Works

A new radio format is set to add features to your radio listening experience: HD Radio. Learn how it works.

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

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

    A good communication network could help mine workers notify one another of unsafe conditions, but radio waves don't like to travel through rock. So what do you do? See more »

  • Do certain radio wave frequencies (like those used by cell phones) pose health risks?

    Do certain radio wave frequencies (like those used by cell phones) pose health risks?

    Do certain radio wave frequencies pose health risks? If so, is it safe to live within a quarter mile of a cellular phone tower or a radio antenna? See more »

  • How does a CB radio antenna work?

    How does a CB radio antenna work?

    How does a CB radio antenna work? Why does it have to be tuned? How do you tune it properly? See more »

  • How does an EPIRB distress radio work?

    How does an EPIRB distress radio work?

    EPIRB is meant to help rescuers locate you in an emergency situation, and these radios have saved many lives since their creation in the 1970s. Find out who they've helped the most. 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 in this article. See more »

  • How Ham Radio Works

    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. See more »

  • How HD Radio Works

    How HD Radio Works

    A new radio format is set to add features to your radio listening experience: HD Radio. Learn how it works. See more »

  • How Internet Radio Works

    How Internet Radio Works

    A college student in Wisconsin hears a dj in Jamaica play the latest calypso tune. An advocacy group unites members across the country via a private broadcast. It's made possible by Internet radio, the latest innovation in radio broadcasting since the business began in the early 1920s. See more »

  • How is my radio able to display the stations call letters?

    How is my radio able to display the stations call letters?

    If you have a car radio that shows FM station call signs on the display panel, then you have the Radio Data System feature. Find out how they work! See more »

  • How Radio Scanners Work

    How Radio Scanners Work

    The air around you is bursting with radio waves -- and you can tap into them with minimal effort. With a simple radio scanner, all sorts of transmissions are within your earshot. Find out how radio scanners let you listen in on everything from police to astronaut transmissions. See more »

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