information by electrical/electronic means” e.g. telephone‚ telegraph‚ radio‚ television‚ computer networks (Internet) Basic elements 1. Transmitter : takes information and converts it to a signal 2. Transmission medium :over which the signal is transmitted 3. Receiver : that receives the signal and converts it back into usable information. e.g. a radio broadcast: broadcast tower (Transmitter) free space (transmission medium) radio (receiver) Basic Elements • Transceiver : a single device
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NANYANG TECHNOLOGICAL UNIVERSITY School of Electrical and Electronic Engineering Laboratory Experiment ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- Laboratory Report ------------------------------------------------- ------------------------------------------------- For ------------------------------------------------- -------------------------------------------------
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Advantages and Disadvantages of Internet Advantages Faster Communication The foremost target of Internet has always been speedy communication and it has excelled way beyond the expectations. Newer innovations are only going to make it faster and more reliable. Now‚ you can communicate in a fraction of second with a person who is sitting in the other part of the world. For more personal and interactive communication‚ you can avail the facilities of chat services‚ video conferencing and so on
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only observe and not handle them. Kinescope‚ i.e.‚ sight and sound recording can be made from the television screen. It is just like transcription from the radio. Television transmission may lessen the work or function of the teacher but it is only to supplement the work of the teacher as it is only a one-way communication media. While radio is only an auditory device the television is an audio-visual contrivance to further facilitate the learning and teaching programme. Television is now considered
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programmes. Before the 50s people were not tied to a particular room. Radio was king and you could listen to it anywhere. In the 50s‚ new inventions included the TV dinner which was eaten off a folding tray in front of the TV. There were certain programs that killed the movies on those nights. Television transformed the way Australians received information. It soon became Australia’s dominant form of mass communication‚ taking over from radio and cinema and posing a challenge to print media. Television also
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Classifications of radar. Block Diagram. Main parts of the hardware Technical Specifications WWIGO‚ Features & System requirements for wwigo . Wwigo detected PATTERN Application Of US RADAR Conclusion. Bibliography 3 PowerPoint Presentation: RADAR(RAdio Detection and Ranging ) Radar is an object detection system that uses electromagnetic waves to identify the range‚ altitude‚ direction‚ or speed of both moving and fixed objects such as aircraft‚ ships‚ motor vehicles‚ weather information and terrain
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electromagnetic waves/microwaves. Then in 1888 Heinrich Hertz was the first to demonstrate the existence of microwaves by building an apparatus that detected and produced microwaves in the UHF region. Also in 1894 J. C. Bose publicly demonstrated radio control of a bell using millimeter wavelengths‚ and conducted research into the propagation of microwaves. Origin(s): One origin of microwaves include a maser‚ which is similar to a laser but it runs on microwaves. Wavelength and Frequency Range:
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beginning of chapter 8‚ Bits in the Air‚Old Metaphors‚ New Technologies‚ and Free speech‚ of the novel Blown to Bits they discussed the FCC gaining the authority to regulate the content that is broadcasted on the radio. Later as the nations technology progressed the television overtook the radio in popularity and the FCC tried to regulate the new public broadcasting system that had been created. In 1978 a Supreme Court case I was concurred that the government had a special interest in protecting the people
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were the only records around then. We also had a battery operated radio that we listened to some. You could not run the radio too much or you would run the battery down too soon. There were not very many radio stations then and most of them were at very distant locations. Dad had extra tall posts‚ about 12 ft‚ in each corner of our front yard with a wire running from one to the other and then into the house to the radio
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Hey Tommy‚ look‚ look at this oh my golly goodness‚ is this not the most beautiful radio you have ever seen!” From the far depth of the back of the third shelf she pulled out a small golden colored radio with a $4.00 price sticker on it. “Score and if I get this I can see if it works‚ buy some batteries‚ or just grab some from home‚ and even have some money left from Wendell’s. Who says I can’t
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