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Radio Broadcasting

Radio Broadcasting. Continues to grow, with or without technology. Transmissions Technologies. Amplitude Modulation (AM) Varies signal strength Frequency Modulation (FM) Varies frequency of signal 1978: FM passed AM in number of listeners. Owners. Clear Channel Communications

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Radio Broadcasting

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  1. Radio Broadcasting

  2. Continues to grow, with or without technology

  3. Transmissions Technologies • Amplitude Modulation (AM) • Varies signal strength • Frequency Modulation (FM) • Varies frequency of signal • 1978: FM passed AM in number of listeners

  4. Owners • Clear Channel Communications • 1200 stations • Cumulus Media • 266 stations

  5. SDARS • Satellite Digital Audio Radio Service • XM Satellite Radio • Sirius Satellite Radio • Music comes commercial free for $10-$13 a month • Costs a lot to set up subscribers

  6. Blunders • Broadcast radio station owners have made SDARS possible by what they play and how they program their stations

  7. DAB • Digital Audio Broadcasting

  8. The Fight Ahead • MP3 players • Cellular phones • Radio stations as DAB streaming MP3 audio to cell phones?

  9. IBOC • In-band, on channel system • Simultaneous broadcast of analog and digital signals • Uses no new spectrum

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