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प्रश्न
Explain the terms Attenuation used in Communication System.
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उत्तर
Attenuation: The loss of strength of a signal while propagating through a medium is called attenuation.
संबंधित प्रश्न
Explain the terms : Transmitter in communication system
Write the functions of the following in communication systems:
Modulator
Write the functions of the following in communication systems:
Demodulator
Explain the term demodulation used in a communication system.
Distinguish between broadcast mode and point-to-point mode of communication and give one example for each.
A device X used in communication system can convert one form of energy into another. Name the device X. Explain the function of a repeater in a communication system.
What is the function of a bandpass filter used in a modulator for obtaining AM signal?
A 1 KW signal is transmitted using a communication channel which provides attenuation at the rate of – 2dB per km. If the communication channel has a total length of 5 km, the power of the signal received is `["gain in dB" = 10 log ("P"_0/"P"_"i")]`
A basic communication system consists of ______.
- transmitter.
- information source.
- user of information.
- channel.
- receiver.
Choose the correct sequence in which these are arranged in a basic communication system:
Figure shows a communication system. What is the output power when input signal is of 1.01 mW? (gain in dB = 10 log10 (Po/Pi).
