Amplitude modulation is used for broadcasting because

Amplitude modulation is used for broadcasting because 

 (A) it is move noise immune than other modulation systems (B) compared with other systems it requires less transmitting power (C) its use avoids receiver complexity (D) no other modulation system can provide the necessary bandwidth for high fidelity.
by

1 Answer

Answer :

Amplitude modulation is used for broadcasting because its use avoids receiver complexity 

by

Related questions

What is the full form of 'AM' regarding radio broadcasting? (1) Amplitude Movement (2) Anywhere Movement (3) Amplitude Matching (4) Amplitude Modulation

Description : What is the full form of 'AM' regarding radio broadcasting? (1) Amplitude Movement (2) Anywhere Movement (3) Amplitude Matching (4) Amplitude Modulation

Last Answer : (4) Amplitude Modulation Explanation: AM broadcasting is the process of radio broadcasting using amplitude modulation. AM was the first method of impressing sound on a radio signal and is still ... frequency. It then amplifies changes in the signal voltage to drive a loudspeaker or earphones.

What is the full form of ‘AM’ regarding radio broadcasting? (1) Amplitude Movement (2) Anywhere Movement (3) Amplitude Matching (4) Amplitude Modulation

Description : What is the full form of ‘AM’ regarding radio broadcasting? (1) Amplitude Movement (2) Anywhere Movement (3) Amplitude Matching (4) Amplitude Modulation

Last Answer : Amplitude Modulation

In amplitude modulation scheme, the over-modulation

Description : In amplitude modulation scheme, the over-modulation (A) is desired phenomenon (B) helps in signal recovery (C) is undesired phenomenon (D) Envelope of AM maintains the shape of the baseband signal

Last Answer : In amplitude modulation scheme, the over-modulation is desired phenomenon

The carrier swing necessary to provide 80% modulation in the FM broadcasting band is __________. A. 150 kHz B. 120 kHz C. 60 kHz D. 75 kHz

Description : The carrier swing necessary to provide 80% modulation in the FM broadcasting band is __________. A. 150 kHz B. 120 kHz C. 60 kHz D. 75 kHz

Last Answer : B. 120 kHz

What is the effect in over modulated amplitude modulated radio broadcasting transmission? A. Interference to adjacent channel B. Higher fidelity C. Increase noise D. Higher audio signal

Description : What is the effect in over modulated amplitude modulated radio broadcasting transmission? A. Interference to adjacent channel B. Higher fidelity C. Increase noise D. Higher audio signal

Last Answer : A. Interference to adjacent channel

In modulation technique, which of the following is referred to audible pitch? A. Width B. Frequency C. Harmonic D. Amplitude

Description : In modulation technique, which of the following is referred to audible pitch? A. Width B. Frequency C. Harmonic D. Amplitude

Last Answer : B. Frequency

This is referred to a product of simultaneous frequency and amplitude modulation or a carrier frequency variation which produces unwanted distortion. A. Absorption modulation B. Simultaneous modulation C. Dynamic instability D. Series modulation

Description : This is referred to a product of simultaneous frequency and amplitude modulation or a carrier frequency variation which produces unwanted distortion. A. Absorption modulation B. Simultaneous modulation C. Dynamic instability D. Series modulation

Last Answer : C. Dynamic instability

In amplitude modulation technique the unmodulated carrier is referred to as having ______. A. 100% modulation B. 0% modulation C. 50% modulated D. Over modulated

Description : In amplitude modulation technique the unmodulated carrier is referred to as having ______. A. 100% modulation B. 0% modulation C. 50% modulated D. Over modulated

Last Answer : B. 0% modulation

Which of the following systems is not used in radio detection and ranging? A. Frequency shift B. Frequency modulation C. Pulse radar D. Amplitude modulation

Description : Which of the following systems is not used in radio detection and ranging? A. Frequency shift B. Frequency modulation C. Pulse radar D. Amplitude modulation

Last Answer : D. Amplitude modulation

Used for time division multiplexing. A. Frequency modulation B. Pulsed modulation C. SSB D. Amplitude modulation

Description : Used for time division multiplexing. A. Frequency modulation B. Pulsed modulation C. SSB D. Amplitude modulation

Last Answer : B. Pulsed modulation

Modulation means A. Varying of information B. Utilization of a single transmission channel to carry multiple signals C. Varying of some parameters of a carrier such as its amplitude to transmit information D. Transmit pulses in DC form on a copper wire

Description : Modulation means A. Varying of information B. Utilization of a single transmission channel to carry multiple signals C. Varying of some parameters of a carrier such as its amplitude to transmit information D. Transmit pulses in DC form on a copper wire

Last Answer : C. Varying of some parameters of a carrier such as its amplitude to transmit information

If the percentage modulation of an AM amplifier is 88% and the modulating signal is 1 volt, the carrier has an amplitude of _______________. A. 1.14 volts B. 0.88 volt C. 1.88 volts D. 0.12 volt

Description : If the percentage modulation of an AM amplifier is 88% and the modulating signal is 1 volt, the carrier has an amplitude of _______________. A. 1.14 volts B. 0.88 volt C. 1.88 volts D. 0.12 volt

Last Answer : A. 1.14 volts

Three audio waves with 100,200 and 300 volts amplitude respectively, simultaneously modulate a 450 volts carrier. What is the total percent of modulation of the AM wave? A. 69 % B. 115.5 % C. 50% D. 83%

Description : Three audio waves with 100,200 and 300 volts amplitude respectively, simultaneously modulate a 450 volts carrier. What is the total percent of modulation of the AM wave? A. 69 % B. 115.5 % C. 50% D. 83%

Last Answer : D. 83%

ECE Board Exam March 1996 One type of pulse communications system uses pulse that appear as a group, and which vary in number according to the loudness of the voice. This type of pulse modulation is called A. pulse duration modulation B. pulse amplitude modulation C. pulse code modulation D. pulse position modulation

Description : ECE Board Exam March 1996 One type of pulse communications system uses pulse that appear as a group, and which vary in number according to the loudness of the voice. This type of ... A. pulse duration modulation B. pulse amplitude modulation C. pulse code modulation D. pulse position modulation

Last Answer : A. pulse duration modulation

In frequency modulation, amplitude of modulated wave is A. positive B. negative C. constant D. zero

Description : In frequency modulation, amplitude of modulated wave is A. positive B. negative C. constant D. zero

Last Answer : constant

Variation in amplitude or frequency of carrier wave is called A. amplitude modulation B. frequency modulation C. modulation D. bandwidth

Description : Variation in amplitude or frequency of carrier wave is called A. amplitude modulation B. frequency modulation C. modulation D. bandwidth

Last Answer : modulation

Quadrature amplitude modulation(QAM) isa combination of ___________. A) ASK and FSK B) ASK and PSK C) PSK and FSK D) none of the above

Description : Quadrature amplitude modulation(QAM) isa combination of ___________. A) ASK and FSK B) ASK and PSK C) PSK and FSK D) none of the above

Last Answer : ASK and PSK

Bits can be sent over guided and unguided media as analog signal by ___________ a. digital modulation b. amplitude modulation c. frequency modulation d. phase modulation

Description : Bits can be sent over guided and unguided media as analog signal by ___________ a. digital modulation b. amplitude modulation c. frequency modulation d. phase modulation

Last Answer : a. digital modulation

what is angle and amplitude modulation? what is noise in modulation?

Description : what is angle and amplitude modulation? what is noise in modulation?

Last Answer : Ans- modulation means change. to send a message of low frequency to a far distance we use a carrier of high frequency to carry the message. while transfering we change some parameters of ... is an unwanted signal which enter in signal while transfering a signal and makes the signal distorted.

What, if any, noise susceptibility advantage exists for pulse-amplitude modulation over analog amplitude modulation?

Description : What, if any, noise susceptibility advantage exists for pulse-amplitude modulation over analog amplitude modulation?

Last Answer : Both are susceptible to noise and interference

With a single modulating tone, what is the amplitude of the sideband frequencies at 100-percent modulation?

Description : With a single modulating tone, what is the amplitude of the sideband frequencies at 100-percent modulation?

Last Answer : One-half the amplitude of the carrier.

What is amplitude modulation?

Description : What is amplitude modulation?

Last Answer : Any method of modulating an electromagnetic carrier frequency by varying its amplitude in accordance with the intelligence.

n digital modulation, it is similar to standard amplitude modulation except there is only two amplitudes possible.

Description : n digital modulation, it is similar to standard amplitude modulation except there is only two amplitudes possible.

Last Answer : amplitude shift keying

A pulse modulation technique as the width of a constant amplitude pulse is varied proportional to the amplitude of the analog signal at the time the signal is sampled.

Description : A pulse modulation technique as the width of a constant amplitude pulse is varied proportional to the amplitude of the analog signal at the time the signal is sampled.

Last Answer : PWM, PLM, PDM

Pulse – amplitude modulation signals are multiplexed by using

Description : Pulse – amplitude modulation signals are multiplexed by using

Last Answer : FET switches

Describe amplitude shift keying (ASK) modulation with suitable circuit diagram.

Description : Describe amplitude shift keying (ASK) modulation with suitable circuit diagram.

Last Answer : Explanation:- ASK MODULATOR: The process where a binary information signal directly modulates the amplitude of an analog carrier. The digital signal is used to switch the carrier between amplitude levels is ... Block diagram of ASK Transmitter / ASK modulator:-  Waveforms:- 

In amplitude modulation AM, if modulation index is more than 100% then:

Description : In amplitude modulation AM, if modulation index is more than 100% then: (1) Power of the wave increases. (2) Efficiency of transmission increases. (3) The wave gets distorted. (4) Bandwidth increases

Last Answer : In amplitude modulation AM, if modulation index is more than 100% then: The wave gets distorted.

An amplitude modulation performs the mathematical operation of

Description : An amplitude modulation performs the mathematical operation of (A) Division (B) multiplication (C) subtraction (D) addition

Last Answer : An amplitude modulation performs the mathematical operation of multiplication

The total power of an AM transmitter having a carrier power of 50 W and the percentage of modulation at

Description : The total power of an AM transmitter having a carrier power of 50 W and the percentage of modulation at 80% is A) 50 W B) 66 W C) 68 W D) 70 W 

Last Answer : The total power of an AM transmitter having a carrier power of 50 W and the percentage of modulation at 80% is 66 W

An FM signal with modulation index mƒ is passed through a frequency tripler. The modulation index of the

Description : An FM signal with modulation index mƒ is passed through a frequency tripler. The modulation index of the output signal will be (1) mƒ (2) 3mƒ (3) 9mƒ (4) 27mƒ

Last Answer : An FM signal with modulation index mƒ is passed through a frequency tripler. The modulation index of the output signal will be 3mƒ

The modulation system inherently most noise resistant is:

Description : The modulation system inherently most noise resistant is:  (1) Frequency modulation (2) Pulse width modulation (3) Pulse code modulation (4) Phase modulation

Last Answer : The modulation system inherently most noise resistant is: Pulse code modulation.

If the radiated power of AM transmitter is 10 KW, the power in the carrier for modulation index of 0.6 is...

Description : If the radiated power of AM transmitter is 10 KW, the power in the carrier for modulation index of 0.6 is nearly:  (1) 8.24 KW (2) 9.26 KW (3) 8.47 KW (4) 9.6 KW

Last Answer : If the radiated power of AM transmitter is 10 KW, the power in the carrier for modulation index of 0.6 is nearly: 8.47 KW.

Which one of the following statements is correct? Digital modulation techniques are used in satellite ...

Description : Which one of the following statements is correct? Digital modulation techniques are used in satellite communication systems since:  (1) They are easier to handle (2) Large bandwidth utilization is possible (3) They have a higher spectral efficiency (4) They are less prone to interference

Last Answer : They are less prone to interference 

Frequency modulation gives - - - noise

Last Answer : Frequency modulation gives Less noise

What causes over modulation in am

Last Answer : Excessive high voice signal may cause overmodulation. Modulating component greater than carrier may cause overmodulation. Setting the gain of the microphone too high may cause overmodulation.

In a microwave test bench, why is the microwave signal amplitude modulated at 1 kHz?

Description : In a microwave test bench, why is the microwave signal amplitude modulated at 1 kHz?  (1) To increase the sensitivity of measurement (2) To transmit the signal to a far-off place (3) To study amplitude modulation (4) Because crystal detector fails at microwave frequencies

Last Answer : In a microwave test bench, why is the microwave signal amplitude modulated at 1 kHz?  Because crystal detector fails at microwave frequencies

Two sinusoidal signals having the same amplitude and frequency are applied to the X and Y inputs of a CRO.

Description : Two sinusoidal signals having the same amplitude and frequency are applied to the X and Y inputs of a CRO. The observed Lissajous figure is straight line. The phase shift between the two signals would be (1) Zero (2) 90 degrees (3) Either zero or 180 degrees (4) Either 90 degrees or 270 degrees  

Last Answer : Two sinusoidal signals having the same amplitude and frequency are applied to the X and Y inputs of a CRO. The observed Lissajous figure is straight line. The phase shift between the two signals would be (1) Zero (2) 90 degrees (3) Either zero or 180 degrees (4) Either 90 degrees or 270 degrees  

A 4 GHz carrier is amplitude modulated by a low-pass signal of maximum cut off frequency 1 MHz

Description : A 4 GHz carrier is amplitude modulated by a low-pass signal of maximum cut off frequency 1 MHz. lf this signal is to be ideally sampled, the minimum sampling frequency should be nearly

Last Answer : A 4 GHz carrier is amplitude modulated by a low-pass signal of maximum cut off frequency 1 MHz. lf this signal is to be ideally sampled, the minimum sampling frequency should be nearly 4 Ghz

Range of Television Broadcasting is confined to a limited distance because (a) Long waves are used (b) Short waves are absorbed by atmosphere (c) Energy of the waves is dissipated (d) Earth is spherical in shape

Description : Range of Television Broadcasting is confined to a limited distance because (a) Long waves are used (b) Short waves are absorbed by atmosphere (c) Energy of the waves is dissipated (d) Earth is spherical in shape

Last Answer : Ans:(d)

Why are frequency modulation transmitters more efficient? A. Because their power is increased by class C amplifiers B. Because their power is increased by class A amplifiers C. Because their power is increased by class B amplifiers D. Because their power is increased by class AB amplifiers

Description : Why are frequency modulation transmitters more efficient? A. Because their power is increased by class C amplifiers B. Because their power is increased by class A amplifiers C. Because their power is increased by class B amplifiers D. Because their power is increased by class AB amplifiers

Last Answer : A. Because their power is increased by class C amplifiers

What is the difference between phase and frequency modulation? A. Is purely theoretical because they are the same in practice B. Lies in poorer audio response of phase modulation C. Lies in the different definitions of the modulation index D. Is too great to make two systems compatible

Description : What is the difference between phase and frequency modulation? A. Is purely theoretical because they are the same in practice B. Lies in poorer audio response of phase modulation C. Lies in the different definitions of the modulation index D. Is too great to make two systems compatible

Last Answer : C. Lies in the different definitions of the modulation index

Should Robert Lee change his name so he can keep broadcasting football games?

Description : Should Robert Lee change his name so he can keep broadcasting football games?

Last Answer : Did you read the article, @josie? At all? Even the title? Apparently not. Reassigned from one game. Once.

IPhone LAN Gaming Over Windows VPN? (UDP Broadcasting)

Description : IPhone LAN Gaming Over Windows VPN? (UDP Broadcasting)

Last Answer : Try not using a VPN, and try on a regular network, one that your phone makes or one that windows is rebroadcasting (there is software to do that)

How can I learn to read and understand all the cool stuff on the blackboards in a science documentary, like Nova from PBS(Public Broadcasting Station) ?

Description : How can I learn to read and understand all the cool stuff on the blackboards in a science documentary, like Nova from PBS(Public Broadcasting Station) ?

Last Answer : answer:Take notes while viewing. Then treat your notes as as a research project. Start with item number one. Take your time. The internet is the most amazing library of all time. None of us, ... on food and nutrition, for example, he eats some pretty weird stuff to make the program interesting.

What kind of TV broadcasting do Americans use?

Description : What kind of TV broadcasting do Americans use?

Last Answer : American TV blows…

I can hear my neighbor broadcasting in my speakers, how can I stop this?

Description : I can hear my neighbor broadcasting in my speakers, how can I stop this?

Last Answer : answer:I guess you could politely ask him to turn down the amplification on his antenna. The alternative is to buy expensive shielded cabling for your audio electronics.

Why does my HDTV lose the edges of the frame when something is broadcasting in 1080i, but not at 480i?

Description : Why does my HDTV lose the edges of the frame when something is broadcasting in 1080i, but not at 480i?

Last Answer : When you say it “loses” the edges do you mean that you see only a portion of what the original image should be; conversely do you mean the image is displayed with a black frame around it?

How long after putting down pre-emergent weed killer should I wait before broadcasting grass seed?

Description : How long after putting down pre-emergent weed killer should I wait before broadcasting grass seed?

Last Answer : I don't know what the experts say, but I suggest you reverse the process. Pre-emergent weed killer prevents all seeds from sprouting so your grass would not grow and you would have wasted your money. A better ... weed killers seem to last up to two years. At least, that is how it is in my yard.

Is TV going to prevail as a broadcasting media?

Description : Is TV going to prevail as a broadcasting media?

Last Answer : “In the same broadcasting form as today” is migrating to the Internet. Comcast On-Demand, for instance, is streaming digital video over packet-switched networks. And that’s even before you look at YouTube and Hulu and all those other experiments.

In TV broadcasting, what is the difference between an affiliate and an O&O (Owned & Operated) station?

Description : In TV broadcasting, what is the difference between an affiliate and an O&O (Owned & Operated) station?

Last Answer : I believe an affiliate is owned independently of the network. O&Os are owned by the network that they carry.