Throughout the world, the FM broadcast band falls within the VHF part of the radio spectrum. Usually 87.5 to 108.0 MHz is used, or some portion thereof, with few exceptions:
• In the

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Modulation
Frequency modulation or FM is a form of modulation which conveys information by varying the frequency of a carrier wave; the older amplitude modulationor AM varies the amplitude of the carrier, with its frequency remaining

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Americas
Brazil
The first radio station to broadcast in FM in Brazil was Rádio Imprensa, which began broadcasting in

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Consumer use of FM transmitters
In some countries, small-scale (Part 15in United States terms) transmitters are available that can transmit a signal from an audio device (usually a

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FM broadcasting by country
• FM broadcasting in Australia
• FM broadcasting in Canada

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In 2017, Norway became the first country so far to completely switch to Digital audio broadcasting, the exception being some local stations remaining on FM until 2022, and might be extended to

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