1. Radio Broadcasting

2. RADIO IS FREE!

3. Formats

5. Some History First to simultaneously transmit entertainment to millions Continues to grow, with or without technology Marconi usually thought of as the inventor or at least the innovator AM broadcasting began in 1920

6. Antenna Tuner Detector Amplifier Speaker Radio AM – FM difference

7. Transmissions Technologies Amplitude Modulation (AM)  Varies signal strength  Electrical interference Frequency Modulation (FM)  Varies frequency of signal  Smaller coverage area 1978: FM passed AM in number of listeners

8. Ownership Telecommunications Act of 1996 lifted ownership limits  Could only own seven stations  Then eighteen  Now, no limit

9. Owners Clear Channel Communications  1200 stations a few years ago  1000 stations now Cumulus Media  336 stations Business organizations and not technology innovators

10. Substitutes for Radio Smartphone Digital Media Player or Tablet  40% of Americans listen to audio on digital devices each week This number will double by 2015

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

12. Satellite Radio

13. Blunders Broadcast radio station owners have made SDARS possible by what they play and how they program their stations Fewer formats Less mass appeal

14. DAB Digital Audio Broadcasting HD Radio from IBiquity Digital  No hiss  CD quality  Pause, fast forward, etc.  Weather, Traffic info Combines Analog and Digital

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

16. Where we listen 75% of radio listening takes place in cars 55% of 18-24 year olds listen to iPods in cars

17. Low Power FM (LPFM) Short range Educational uses mostly Non-profit organizations

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