How to Broadcast Radio from Your Computer

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Reviewed by Stan Kats

Last Updated: September 29, 2025

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Using an MP3 FM Radio Transmitter

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Use a PCI card

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Q&A

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Tips

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Warnings

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Things You'll Need

Broadcasting FM radio from your computer can be very simple or very costly. This wikiHow will show you two low-cost options to get your tunes out of your computer and onto your FM radio.

Method 1

Method 1 of 2:

Using an MP3 FM Radio Transmitter

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If you are in the USA, the FCC has explicit rules that govern how much power you can use to get your message out.
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Method 2

Method 2 of 2:

Use a PCI card

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Question

Can a computer transmit on amateur radio frequencies?

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Community Answer

No, you need to use any external device such as an AM or FM transmitter.

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Question

How many square miles can such a station cover?

Community Answer

Around 65 feet; this is not a big radio station. Bigger devices require more electricity and space.

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What should you do if you want to broadcast to AM radio?

Community Answer

If you live in the United States, you need a permit from the FCC at least.

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Video

Tips

Enable your microphone for playback by unchecking the mute check box on your PC soundcard mixer <- This will let you announce songs.

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Use Skype to conduct telephone call-ins over-the-air

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Accept song requests by email from friends and neighbors

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Warnings

In the USA, you need a license to legally use an FM transmitter that doesn't comply with part 15 rules. The two methods above are legal to use, but there are stronger transmitters for sale that are not legal in the USA without a license. Not heeding this advice can be costly.

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See https://www.fcc.gov/media/radio/lpfm for details regarding pursuing a Low Power FM license.

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