English

Write the Function of Receiver in Communication System. - Physics

Advertisements
Advertisements

Question

Write the function of receiver in communication system.

Short/Brief Note
Advertisements

Solution

Receiver :
A receiver extracts the desired message signal from the received signal at the channel output.

shaalaa.com
  Is there an error in this question or solution?
2018-2019 (March) 55/3/3

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

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.


Distinguish between point to point and broadcast modes of communication. Give an example of each.


Explain the basic concept of mobile telephoning ?


Distinguish between point to point and broadcast modes of communication. Give an example of each.


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")]`


Audio sine waves of 3 kHz frequency are used to amplitude modulate a carrier signal of 1.5 MHz. Which of the following statements are true?

  1. The sideband frequencies are 1506 kHz and 1494 kHz.
  2. The bandwidth required for amplitude modulation is 6 kHz.
  3. The bandwidth required for amplitude modulation is 3 MHz.
  4. The side band frequencies are 1503 kHz and 1497 kHz. 

Which of the following would produce analog signals and which would produce digital signals?

  1. A vibrating tuning fork.
  2. Musical sound due to a vibrating sitar string.
  3. Light pulse.
  4. Output of NAND gate.

An audio signal is modulated by a carrier wave of 20 MHz such that the bandwidth required for modulation is 3 kHz. Could this wave be demodulated by a diode detector which has the values of R and C as

  1. R = 1 kΩ, C = 0.01 µF.
  2. R = 10 kΩ, C = 0.01 µF.
  3. R = 10 kΩ, C = 0.1 µF.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×