Radio communication and the mobile phone
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Radio communication and the mobile phone

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Radio communication and the mobile phone Radio communication and the mobile phone Presentation Transcript

  • Radio communication and the mobile phone Conor McCloskey
  • History of radio
    • Radio has been around for more then hundred years now.
    • There has always been a debate about who created the radio, it was between Guglielmo Marconi and Nikola Tesla.
    • Though Marconi did the first transition in 1895
    • 30 years later in 1906 the first voice broadcast went out.
  • But what radio waves?
    • Radio waves are electrical radiation.
    • Has different waves lengths from (1mm to 100,000Km)
    • Radio waves are used of: Broadcasting, mobile radio communication and more.
  • Different types of wavelengths
    • Long waves
    • Medium waves
    • VHF (high frequency)
    • UHF (High frequency)
  • Different wavelengths
  • How mobile phones work
    • Mobile phones use “cells”, each “cell” has a base station at the centre of the “cell”.
    • The mobile phone uses radio waves to communicate with the radio base station in the “cell”.
    • So the closer to the “cell” you are the more signal you have.
  • Base stations
  • Reffreances
    • PUBLIC TELECOMMUNICATION NETWORKS UNIT (2001) How Mobile Phone Networks Work [WWW] Ofcom. Available from: http:// www.sitefinder.ofcom.org.uk/mobilework.htm [Accessed 25/01/11].
    • PUBLIC TELECOMMUNICATION NETWORKS UNIT (2001) Wavelength (online image) [WWW] Ofcom. Available from: http:// www.sitefinder.ofcom.org.uk/mobilework.htm [Accessed 25/01/11].
      • WiseGeek (2001) names of radio inventors. http://www.wisegeek.com/what-are-radio-waves.htm [Accessed 25/01/11]
    • SEOR STUDENT(2005) base station cell (Online image) http://seor.gmu.edu/student_project/syst101_00b/team19/cell%20power.htm