AM radio waves

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AM radio waves

  1. 1. AM broadcasting By Abby Mathuba
  2. 2. Radio waves are a apart of a range of electromagnetic waves as the diagram shows All the waves range in size and speed.
  3. 3. Facts about Radio waves• They have the longest wave on the wavelength on the electromagnet spectrum as a result they can be manipulated to research desired location• not only do they carry information such as much and other information with in radio shows these waves also carry signals to phones and televisions.
  4. 4. • They are also used to send out radio broadcast’s to both regional and local This is a simplified version of how radio transition works
  5. 5. The quality AM radio waves is influenced by various factors for example the time of year and day influence the quality of sound received. The diagram below is an example of this as it demonstrates the waves behaviour at different times on the day. During the day the waves are more controlled because of the numerous lays in the atmosphere but at night time the waves are more like to travel further than intended and the density of the layers in the atmosphere alters.
  6. 6. Am waves have other functions as wellWhen TV’s first came out they had antenna’s these an antenna’s were created to receive signals (waves) with information and turn it not images and sound.
  7. 7. • Am waves were also used on mobile phones (the ones with the antenna’s) when phones first came out.
  8. 8. Just like many radio stations TV companies and phone companies are finding new ways of connecting people without using AM waves due to fact they are not very reliable at times.For example many radio show are switching to FM waves whilst TV companies which to digital. It is still possible to find radio station with England that still use AM waves but they are very small in numbers.
  9. 9. BibliographyGoogle (2012) , picture of electromagnetic spectrum. Available from:http://www.google.co.uk/imgres?um=1&hl=en&sa=N&biw=1311&bih=486&tbm=isch&tbnid=8K533ZWwFJMHUM:&imgrefurl=ht tp://www.kollewin.com/blog/electromagnetic-spectrum/&docid=327yjgreUnV0SM&imgurl=http://www.kollewin.com/EX/09-15- 03/electromagnetic- spectrum.jpg&w=500&h=346&ei=iFwfT_jjJ4XAhAei8aWEAw&zoom=1&iact=hc&vpx=416&vpy=185&dur=2562&hovh=187&hovw=270 &tx=207&ty=153&sig=116567368737095927568&page=1&tbnh=104&tbnw=150&start=0&ndsp=14&ved=1t:429,r:9,s:0 , [accessed 21,01,2012]Google(2012), picture of radio broadcasting. Available from:http://www.google.co.uk/imgres?q=radio+broadcasting&um=1&hl=en&sa=N&biw=1311&bih=486&tbm=isch&tbnid=KLjEAIdHa_k BBM:&imgrefurl=http://www.noniandjim.com/Jim/RadioProjects/UsingElectronics/UsingElectronics.html&docid=ofvzDKcDVCKg1M&im gurl=http://www.noniandjim.com/Jim/RadioProjects/UsingElectronics/RadioBroadcasting.gif&w=522&h=240&ei=RGEfT4vJFIfKhAfG9YT lDQ&zoom=1&iact=hc&vpx=673&vpy=139&dur=102&hovh=152&hovw=331&tx=146&ty=87&sig=116567368737095927568&page=10 &tbnh=80&tbnw=174&start=163&ndsp=18&ved=1t:429,r:15,s:163 , [Accessed 22,01,2012]Google(2012), picture on TV with antennas. Available http://www.google.co.uk/imgres?q=tvs+with+antenna&um=1&hl=en&sa=N&biw=1140&bih=498&tbm=isch&tbnid=2iYklB2QLKvOiM:& imgrefurl=http://www.shutterstock.com/pic-46596799/stock-vector-small-old-tv-with-antenna.html&docid=- d6A_EO_2pPhDM&imgurl=http://image.shutterstock.com/display_pic_with_logo/261391/261391,1266090012,4/stock-vector-small- old-tv-with-antenna- 46596799.jpg&w=426&h=470&ei=spgmT__oGaLC0QWan7zOCg&zoom=1&iact=hc&vpx=213&vpy=148&dur=1329&hovh=236&hovw=2 14&tx=122&ty=195&sig=116567368737095927568&page=1&tbnh=142&tbnw=110&start=0&ndsp=12&ved=1t:429,r:7,s:0, [Accessed 22,01,2012]Google(2010), picture of phone with antenna. Available http://www.google.co.uk/imgres?q=phones+with+antenna&um=1&hl=en&biw=1140&bih=498&tbm=isch&tbnid=bYdws1LhCQFH1M:& imgrefurl=http://mobihealthnews.com/page/308/&docid=YtIKbmLyhV6OEM&imgurl=http://mobihealthnews.com/wp- content/uploads/2009/02/0660208.gif&w=300&h=300&ei=P5omT6j3KOq90QXg4f3NCg&zoom=1&iact=hc&vpx=875&vpy=135&dur=6 95&hovh=225&hovw=225&tx=148&ty=95&sig=116567368737095927568&page=1&tbnh=140&tbnw=137&start=0&ndsp=12&ved=1t: 429,r:5,s:0, [Accessed 23,01,2012]

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