The process of retrieving the message signal from the modulated carrier wave is known as:
Demodulation
Modulation
Transmission
Reception
Related Questions
What is the minimum length of antenna required to transmit a radio signal of frequency 20 MHz?
5.0m
7.5m
2.0m
3.75m
An amplitude modulated wave is modulated to 50%. What is the saving in power if carrier as well as one of the side bands are suppressed
70%
65.40%
94.40%
25.50%
The antenna current of an AM broadcast transmitter modulated by 50% is 11. Find the carrier current
9.25 A
10:00 AM
10.35 A
5.5 A
The bit rate for a signal, which has a sampling rate of 8 kHz and where 16 quantisation levels have been used is
32000 bits/s
16000 bits/s
64000 bits/s
72000 bits/s
A telephone link operating at a central frequency of is established. If 1% of this available then how many telephone channels can be simultaneously given when each telephone covering a band width of
Two electrons are moving in opposite direction with speeds 0.8 c and 0.4 c, where c the speed of light in vacuum. Then the relative speed is about
0.4 c
0.8 c
0.9 c
1.2 c
Which fibers are less expensive and simple to construct?
Single-mode step index fiber
Multi-mode step index fiber
Multi graded index fiber
All are equally expensive
The ozone layer absorbs
Infrared radiations
Ultraviolet radiations
-rays
-rays
Which one of the following is a full duplex transmission system?
TV
Radio
Telephone
Walky-talky (wireless used in the army)
A signal wave of frequency 12 kHz is modulated with a carrier wave of frequency 2.51 MHz. The upper and lower side band frequencies are respectively
2512 kHz and 2508 kHz
2522 kHz and 2488 kHz
2502 kHz and 2498 kHz
2522 kHz and 2498 kHz
