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BINA LIBRARY-COMMUNICATION SYSTEM -EXERCISE
- For long distance radio broadeast, we use short wave only. Why?
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- Why satellites are used for long distance TV transmission.
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- in what respects radio waves and gamma rays are different ?
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- Why sky wave are not used in television signals.
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- expalin why Tv transmission are usually made high .
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- why high frequency carrier waves are employed for transmission ?
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- why is short wave communication over long distance not possible by sur...
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- A radio can turn to any station in 7.5HZ TO 12MZband . What is the cor...
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- The maximum peak volatage of an AM wave is 20 mV . If the modulating i...
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- Find the length of a dipole antenna at frequency 10KHZ.
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- what should be the height of a transmitting antenna if TV telecast is ...
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- How many telephone channels each allotted to a band width of 8HZ can b...
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- calculate the length of half wave dipole antenna a) 30MHz b)300MHz c...
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- A TV tower has a height of 100m how much population is covered by the ...
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- What is an optically rarer medium?
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- The process of superimposing signal frequency on carrier wave is known...
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- The purpose of oscillator in AM transmitter is to
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- The electromagnetic waves of frquency range 2MHz to 30MHz are in
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- Radio waves of constant amplitude can be generated with
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- In which frequency range space waves are normally propagated ?
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