What is modulation and demodulation ?

What is modulation and demodulation ?
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Answer :

Modulation: The method by which audio frequency is mixed with high frequency is called modulation. Demdulation: The method by which the original modulating signal is separated is called demodulation. That is, it separates the audio frequency from the high-frequency.    
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Related questions

Write the types of modulation and demodulation ?

Description : Write the types of modulation and demodulation ?

Last Answer : There are three main types of modulation. Namely: (a) Amplitude modulation: The modulation in which the amplitude of the carrier signal changes according to the modulating frequency is called ... the carrier signal changes according to the modulating frequency is called phase modulation.

Modulation and demodulation is performed by (a) Microwave (b) Satellite (c) Modem -Technology

Description : Modulation and demodulation is performed by (a) Microwave (b) Satellite (c) Modem -Technology

Last Answer : (c) Modem converts digital signals to analog signals or analog signals to digital signals for the purpose of transmitting data over telephone lines or vice-versa.

Modulation or demodulation alone cannot be an effective method- Explain ?

Description : Modulation or demodulation alone cannot be an effective method- Explain ?

Last Answer : The process of converting digital signal to analog signal is called modulation and demodulation. Data communication is the combined result of both modulation and demodulation process. In order to facilitate ... the received signal are done by using modem at both the sender and the receiver.

The receive GCE system in an earth station performs what function(s)? A. Modulation and multiplexing B. Up conversion C. Demodulation and demultiplexing D. Down conversion

Description : The receive GCE system in an earth station performs what function(s)? A. Modulation and multiplexing B. Up conversion C. Demodulation and demultiplexing D. Down conversion

Last Answer : C. Demodulation and demultiplexing

The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as: a. modulation b. demodulation c. synchronizing d. digitising

Description : The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as: a. modulation b. demodulation c. synchronizing d. digitising

Last Answer : digitising

Which of the following performs modulation and demodulation? a. fiber optics b. satellite c. coaxial cable d. modem e. none of the above

Description : Which of the following performs modulation and demodulation? a. fiber optics b. satellite c. coaxial cable d. modem e. none of the above

Last Answer : modem

Which of the following is used for modulation and demodulation? A. modem B. protocols C. gatewayD.multiplexerE.None of the above

Description : Which of the following is used for modulation and demodulation? A. modem B. protocols C. gateway D. multiplexer E. None of the above

Last Answer : modem

The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as a. modulation b. demodulation c. synchronizing d. Digitizing

Description : The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as a. modulation b. demodulation c. synchronizing d. Digitizing

Last Answer : b. demodulation

Which of the following performs modulation and demodulation? a. fiber optics b. satellite c. coaxial cable d. Modem

Description : Which of the following performs modulation and demodulation? a. fiber optics b. satellite c. coaxial cable d. Modem

Last Answer : d. Modem

What is Demodulation ?

Description : What is Demodulation ?

Last Answer : The method by which the original modulating signal is separated is called demodulation. That is, it separates the audio frequency from the high-frequency.

What is demodulation ?

Description : What is demodulation ?

Last Answer : Digitalization of analog signal is called demodulation.

A form of single sideband emission where the degree of carrier suppression enable the carrier to be reconstituted and be used for demodulation. A. Half carrier single sideband emission B. Full carrier single sideband emission C. Reduced carrier single sideband emissionD. Double sideband emission

Description : A form of single sideband emission where the degree of carrier suppression enable the carrier to be reconstituted and be used for demodulation. A. Half carrier single sideband emission B. Full carrier single sideband emission C. Reduced carrier single sideband emission D. Double sideband emission

Last Answer : C. Reduced carrier single sideband emission

A single sideband emission in which the degree of carrier suppression enables the carrier to be reconstituted and to be used for demodulation. A. Reduce carrier single sideband emission B. Half carrier single sideband emission C. Full carrier single sideband emission D. Standard single sideband emission

Description : A single sideband emission in which the degree of carrier suppression enables the carrier to be reconstituted and to be used for demodulation. A. Reduce carrier single sideband emission ... single sideband emission C. Full carrier single sideband emission D. Standard single sideband emission

Last Answer : A. Reduce carrier single sideband emission

Demodulation is the process of A. converting digital signals toanalog signals B. converting analogsignals todigital signals C. combining many low speed channels into onehigh speed channel D. dividing the high-speed signals into frequency bands E. None of the above

Description : Demodulation is the process of A. converting digital signals toanalog signals B. converting analogsignals todigital signals C. combining many low speed channels into onehigh speed channel D. dividing the high-speed signals into frequency bands E. None of the above

Last Answer : converting analogsignals todigital signals

Demodulation is aprocessof A. converting analog to digital signals B. converting digital to analogsignals C. multiplexing various signals intoone high speed line signals D. performing data description

Description : Demodulation is aprocessof A. converting analog to digital signals B. converting digital to analogsignals C. multiplexing various signals intoone high speed line signals D. performing data description

Last Answer : converting analog to digital signals

How is conversion used in pulse demodulation?

Description : How is conversion used in pulse demodulation?

Last Answer : Ppm, pfm, and pcm are converted to either pdm or pam for demodulation.

How is a quadrature detector changed when used for phase demodulation?

Description : How is a quadrature detector changed when used for phase demodulation?

Last Answer : The quadrature grid signal is excited by a reference from the transmitter.

What is demodulation?

Description : What is demodulation?

Last Answer : The process of recovering intelligence from a modulated carrier.

Explain the demodulation of AM signal using diode detector.

Description : Explain the demodulation of AM signal using diode detector.

Last Answer : Simple diode detector:- Explanation:- This is essentially just a half wave rectifier which charges a capacitor to a voltage nearly to the peak voltage of the incoming AM waveform s(t). ... detector output is proportional to the signal strength. Stronger Am signal higher is the dc AGC voltage.

List different methods of demodulation of FM signal.

Description : List different methods of demodulation of FM signal.

Last Answer : Balanced Slope detection Ratio detector Foster Seeley discriminator Phase locked loop demodulator 

What is the conductivity of molar ?

Description : What is the conductivity of molar ?

Last Answer : The density of a solution as cm. When one mole of electrolytic substance is dissolved in it, the conductivity obtained by multiplying it by the relative conductivity of the solution is called molecular conductivity of the solution .

How do I purchase a product ?

Description : How do I purchase a product ?

Last Answer : From Alibaba you can purchase products by paying MASTER CARD or through bank.

What is an analog signal ?

Description : What is an analog signal ?

Last Answer : Signals whose values ​​change continuously are called analog signals. For example- voltage of electricity supplied to the house.

What is Zener Diod ?

Description : What is Zener Diod ?

Last Answer : Zener diode is a special type of diode which, like ordinary diode, not only conducts current in the forward direction , but also in the opposite direction if the voltage exceeds the level of breakdown ... diode is to use the shunt regulator and the voltage reference as the voltage of the circuit.

What is the multiplying factor of shunt ?

Description : What is the multiplying factor of shunt ?

Last Answer : Answer : The ratio of load or matte current to ammeter current is called shunt multiplying power.

What is ammeter shunt ?

Description : What is ammeter shunt ?

Last Answer : A small amount of radial coupling in parallel with the coil to increase the range of ammeter is called ammeter shunt.

What is short circuit current ?

Description : What is short circuit current ?

Last Answer : Answer : A fault in an electrical system whose current, before or after the current flows through the load, is combined with one or more phases of neutral current which causes more current to flow than normal. The current is called short circuit current.

What is a current limiting reactor ? How many types and what are they ?

Description : What is a current limiting reactor ? How many types and what are they ?

Last Answer : Answer : A current limiting reactor is basically an inductive coil which limits the short circuit current by providing inductive reactance when required. Types: 1. Based on the structure- a) Dry type ... reactor. Basbar reactors are again of 2 types- a) Ring system reactor b) Tiber system reactor

What is the method of diagnosing short circuit current ?

Description : What is the method of diagnosing short circuit current ?

Last Answer : There are three methods for determining short circuit current , namely- 1) Ohmic method 2) Per unit method 3.) Percentage reactance method.

What are symmetrical and asymmetrical faults ?

Description : What are symmetrical and asymmetrical faults ?

Last Answer : Symmetrical Fault: The same amount in each phase due to the float in the electrical system. The fault that causes hot current to flow is called semantic fault. Circuit breaker ratings are determined by ... through each fan is called an asymmetrical fault. The relay is set via asymmetrical font.

What is Basbar and Bas Kaplar ?

Description : What is Basbar and Bas Kaplar ?

Last Answer : Basbar : Basbar is basically a sheet or color of copper or aluminum. It is the job of the bus driver to deliver power to one or more lads with power from one or more cables. Bus ... is basically a combination of circuit breaker and isolator. There are fire proof walls around the bus coupler.

Why is the busbar sectionalized ?

Description : Why is the busbar sectionalized ?

Last Answer : Answer : If an error occurs in any part of the busbar, the operation of the entire busbar system will not stop. The maximum success of this system is due to the interconnection of different sections of the circuit and the smooth distribution in the outgoing circuit.

title : _

Description : title : _

Last Answer : Basbar is a type of copper and aluminum conductive sheet or mata rod , which collects electrical energy from one or more circuits and distributes that energy through one or more circuits.

Write different font names or different short circuit font names ?

Description : Write different font names or different short circuit font names ?

Last Answer : There are two main types of short circuit faults. Namely- 1. Semantic faults and 2. Asymmetrical font Symmetrical fault - a) Short circuit three phases together b) Short circuit asymmetrical fault with three ... result c) Double line to ground font d) Two phase one Circuit and third phase earth.

What is Electrical Fault ? What is the cause of the fault ?

Description : What is Electrical Fault ? What is the cause of the fault ?

Last Answer : Answer : Fault: When two or more conductors come in contact with each other while operating at normal voltage difference, the result is said to be organized. Causes of Fault: Faults are organized due to ... loss of line c) Lightning charge d) Voltage drop e) Loss of unbalance and stability etc.

What features should a switchgear have ?

Description : What features should a switchgear have ?

Last Answer : Switchgear should have the following characteristics- a) Sensitivity b) Detection ability c) Reliability d) High speed e) Durability. F) Expansion advantage g) Simplicity.

What are the components of switch gear ?

Description : What are the components of switch gear ?

Last Answer : The components of switch gear are: circuit breaker , relay , instrument transformer , housing , conductor etc.

What do you mean by switchgear ?

Description : What do you mean by switchgear ?

Last Answer : Answer : Switch gear does not mean a single corner object. It refers to the position of the electromagnetic system, including the connective , isolating , and maintenance equipment of normal activity .

What is an Earth Electrode ?

Description : What is an Earth Electrode ?

Last Answer : Puta metal part in the soil which connects to the soil is called earth electrode. Thank you all for today's electrical questions and answers.

What is Earthing Lead ?

Description : What is Earthing Lead ?

Last Answer : The wire that connects the earth continuity wire and the earth electrode is called the earthing lead.

What earthing is done in hilly areas ?

Description : What earthing is done in hilly areas ?

Last Answer : Sheet earthing is done in hilly areas. Shit electrodes are placed by digging trenches on the slopes of the hill.

What should be the size of rod earthing ?

Description : What should be the size of rod earthing ?

Last Answer : In case of iron or steel rod the diameter is 16 mm but in case of copper rod it is 12.5 mm. In both cases the length is at least 2.5 m. Is to be.

What does earth continuity mean ?

Description : What does earth continuity mean ?

Last Answer : The conduction wire that connects the earthing lead to the metal cover of electrical furniture, appliances, or wiring is called the earth continuity wire.

Which earthing is less expensive ?

Description : Which earthing is less expensive ?

Last Answer : Rod earthing is the least expensive. Because the soil does not have to be eroded, the cost is less than other earthing.

What should be the size of the pipe electrode ?

Description : What should be the size of the pipe electrode ?

Last Answer : The size of the pipe electrode should be 36 mm diameter 2 to 2.75 m long galvanized iron or steel pipe.

How many types of earthing and what are they ?

Description : How many types of earthing and what are they ?

Last Answer : There are two types of earthing , namely _ a) system earthing b) equipment earthing.

What are the essential elements for earthing ?

Description : What are the essential elements for earthing ?

Last Answer : They are _ a) earthen continuity b) earthing lead c) earthy electrode

What is the best earthing method ?

Description : What is the best earthing method ?

Last Answer : Pipe earthing method is best. This is because it is less expensive and when the soil dries out in the dry season , regular earthing can be done by pouring water through the pipes.

What is Neutral Plan ?

Description : What is Neutral Plan ?

Last Answer : A plane at infinite distance , where the value of electric field intensity and potential V is zero , is called Neautral Plan .

On what subject does inductance in transmission line depend ?

Description : On what subject does inductance in transmission line depend ?

Last Answer : a) On the line b) Conductor spacing c) Conductor radius