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You probably already know about Chris Brown, the young hip hop and R&B singer from Virginia who took the music world by storm at the age of sixteen. A talented young man, who has also appeared in film and on television, Chris Brown, is making great strides in the hip hop music industry.
Chris's debut single "Run It!", was a surprise number-one hit in 2005, and his selt-titled album, which has sold over 2.1 million copies, spawned four successful top ten and top twenty hits in the United States. Chris's next album is due for release in the fall of 2007, and it is expected that it will be another chart-topper. |
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Microwaves are the portion of the electromagnetic spectrum where the wavelength falls between about one millimeter and thirty centimeters. Microwave frequency bands extend from about one gigahertz to three hundred gigahertz and are useful for short... |
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Each letter in the word is represented by different signal amplitude using thirty two scale order. If we do so information flow speed gets greatly increased as per Hartley law. Since now each letter is represented by one symbol instead of five. But... |
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A general communication system consists of information source, transmitter, channel, receiver and destination. Information or intelligence is basically a physical quantity such as mass or length. Thus when we speak of one kilo gram of a given object... |
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The functions performed by repeaters are amplification and frequency down conversion. Repeater amplifies signal from a low power level of the order of negative hundred decibels watt to an output power level of the order of ten decibel watts thus... |
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Apart from noise, other forms of interference are found in radio receivers such as image frequency, transmitters operating on an adjacent channel and transmitters operating on the same channel. Frequency modulation provides not only improvement in... |
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The principal advantage of Pulse Code Modulation (PCM) is the noise immunity. But it is not used exclusively. Other pulse modulation systems are still used in spite of highly superior performance of PCM. The reasons are that firstly those systems... |
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