Advertisements
Advertisements
Questions
What is the function of a 'Repeater' used in communication system?
Write the functions of the following in communication systems:
Repeater
Solution 1
A repeater is used to increase the range of the transmission in communication systems with the help of a set of receiver and transmitter.
Solution 2
Repeater: A repeater is a combination of a receiver and a transmitter. It picks up the signal from a transmitter, amplifies it and retransmits it. A repeater is mainly used to extend the range of a communication system.
APPEARS IN
RELATED QUESTIONS
Explain the terms Attenuation used in Communication System.
Write the functions of the following in communication systems:
Transmitter
Write the functions of the following in communication systems:
Transducer
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.
Distinguish between point to point and broadcast modes of communication. Give an example of each.
Write the function of receiver in communication system.
Write the functions of the transducer and repeaters.
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")]`
Which of the following would produce analog signals and which would produce digital signals?
- A vibrating tuning fork.
- Musical sound due to a vibrating sitar string.
- Light pulse.
- Output of NAND gate.
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).