Radio waves are electromagnetic waves that are used for various communication technologies beyond just audio broadcasting. They transmit data for Bluetooth, mobile phones, television, Wi-Fi, and radar by using different frequency ranges. Television uses radio waves between 54-1600 MHz to transmit combined visual and audio entertainment on multiple channels. Mobile phones use radio waves between 824-849 MHz to transmit calls and messages between devices. Bluetooth allows short-distance communication between devices from 2400-2483 MHz. Radar detects objects' presence and speed by transmitting radio waves of varying frequencies. Wi-Fi enables wireless networking between devices using varying radio wave frequencies to connect to the internet via routers.

1. Radio Waves Beyond Broadcasting Christopher Devey P11253950

2. Radio Waves – the basics Radio waves have many different frequencies. Different radio signals can be received by tuning a radio receiver to a specific frequency Radio waves are often used for single-purpose audio radio stations, that transmit sound such as music on particular frequencies for the listener's entertainment, but transmission is not limited to audio information

3. Radio Waves in Everyday Life Radio waves play an important part of an everyday modern life. They are often used for social communication, e.g. wi-fi, mobile phones, and also play an important part in business, government, law-enforcement and the military. Radio waves make communication between two or more entities fast, efficient and easy. They are often taken for granted due to their widespread and oft-used applications

4. Radio Waves Beyond Broadcasting Radio waves are used for a number of different reasons other than audio broadcasting, such as the following: Transferring data via Bluetooth Mobile phones Television Wi-Fi Radar These are all important and modern methods of social and media communication, and radio waves are integral to their functionality. Through each of these technologies, different forms of information can be transferred, such as digital information, e.g. documents, images, or sound and visual information.

5. Television Television sets use radio waves in order to transmit visual and audio information on, combined as a form of entertainment on several different channels Frequency range: 54-1600 MHz Wavelengths: 5.55m – 0.187m Mobile Phones Mobile phones use radio waves in order to transmit information, such as phone calls and SMS messages between two mobile devices, and these waves are much smaller than most radio waves Frequency range: 824.040 - 848.970 MHz Wavelengths: 5.55m – 0.197m

6. Bluetooth Bluetooth allows computers, mobile phones and other devices to communicate to each other over short distances Frequency range: 2400-2483.5 MHz Wavelengths: 10cm Radar Radar allows detection of the presence of an object at a distance, as well as the speed Frequency range: Varies Wavelengths: Varies

7. Wi-Fi Wireless networking or “Wi-fi” allows computers and other devices to communicate with each other and create a 'wireless network', usually in order to connect with a router, and thus a modem and the internet Frequency range: Varies Wavelengths: Varies

8. Bibliography http://science.hq.nasa.gov/kids/imagers/ems/radio.html http://www.howstuffworks.com/wireless-network.htm http://hyperphysics.phy-astr.gsu.edu/hbase/ems2.html http://www.mobileinfo.com/Bluetooth/air_&_band.htm http://www.howstuffworks.com/radio-spectrum.htm http://www.howstuffworks.com/radar.htm