Advertisements
Advertisements
प्रश्न
Write the function of receiver in communication system.
उत्तर
Receiver :
A receiver extracts the desired message signal from the received signal at the channel output.
APPEARS IN
संबंधित प्रश्न
Explain the terms Attenuation used in Communication System.
Explain the terms : Transmitter in communication system
Write the functions of the following in communication systems:
Demodulator
Explain the terms Demodulation used in Communication System.
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.
Explain the basic concept of mobile telephoning ?
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.
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
- R = 1 kΩ, C = 0.01 µF.
- R = 10 kΩ, C = 0.01 µF.
- R = 10 kΩ, C = 0.1 µF.
