What is the purpose of agc/avc in a receiver?

What is the purpose of agc/avc in a receiver?
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1 Answer

Answer :

To limit unwanted variations in the output.
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Related questions

ECE Board Exam March 1996 What is the purpose of the receiver’s squelch circuit? A. To overcome fluctuations in the level the RF signal arriving at the receiver antenna B. To prevent fluctuations in the AGC bias level C. To reduce the receiver’s sensitivity to all incoming signals D. To prevent amplified noise from reaching the loudspeaker during the absence of an incoming signal

Description : ECE Board Exam March 1996 What is the purpose of the receiver's squelch circuit? A. To overcome fluctuations in the level the RF signal arriving at the receiver antenna B. To prevent ... signals D. To prevent amplified noise from reaching the loudspeaker during the absence of an incoming signal

Last Answer : D. To prevent amplified noise from reaching the loudspeaker during the absence of an incoming signal

What consists the front-end circuit of a VHF TV superheterodyne receiver? A. Mixer, RF amplifier and AFC? B. RF amplifier, Band pass filter and mixer C. Local oscillator, mixer and RF amplifier D. Local oscillator, AGC and antenna

Description : What consists the front-end circuit of a VHF TV superheterodyne receiver? A. Mixer, RF amplifier and AFC? B. RF amplifier, Band pass filter and mixer C. Local oscillator, mixer and RF amplifier D. Local oscillator, AGC and antenna

Last Answer : C. Local oscillator, mixer and RF amplifier

Refers to one of the front end circuit of a VHF TV superheterodyne receiver which is usually a separate circuit coupled to the mixer. A. Antenna feed B. AGC C. RF amplifier D. Local oscillator

Description : Refers to one of the front end circuit of a VHF TV superheterodyne receiver which is usually a separate circuit coupled to the mixer. A. Antenna feed B. AGC C. RF amplifier D. Local oscillator

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In a radio receiver with simple AGC:

Description : In a radio receiver with simple AGC:

Last Answer : an increase in signal strength produces more AGC

Which of the two types of automatic gain control, agc or iagc, is most effective in radar use for the Navy?

Description : Which of the two types of automatic gain control, agc or iagc, is most effective in radar use for the Navy?

Last Answer : IAGC.

What is the main difference between agc and dagc?

Description : What is the main difference between agc and dagc?

Last Answer : Dagc does not attenuate weak signals.

What is a disadvantage of agc?

Description : What is a disadvantage of agc?

Last Answer : Weak signals produce bias, which could result in no usable receiver output.

Afirm will close down in the short run, if AR is less than (a) AC (b) AVC © MC (d) none of the above

Description : Afirm will close down in the short run, if AR is less than (a) AC (b) AVC © MC (d) none of the above

Last Answer : (b) AVC

.All of the following curves are U-shaped, except the (a) AFC curve (b) MC curve © AC curve (d) AVC curve

Description : .All of the following curves are U-shaped, except the (a) AFC curve (b) MC curve © AC curve (d) AVC curve

Last Answer : (a) AFC curve

In short run a monopolistic competition firm will be in equilibrium where (a) MR = curve intersect SMC curve from above (b) MR curve intersect SMC curve from below (c) MC = AR ; (d) MR curve intersect SMC from below and P is equal to or more than AVC

Description : In short run a monopolistic competition firm will be in equilibrium where (a) MR = curve intersect SMC curve from above (b) MR curve intersect SMC curve from below (c) MC = AR ; (d) MR curve intersect SMC from below and P is equal to or more than AVC

Last Answer : ; (d) MR curve intersect SMC from below and P is equal to or more than AVC

If a firm shut down at a level when AVC > Price, the firm restricts its losses to (a) Total fixed cost ; (b) Average fixed cost ; (c) Variable cost ; (d) Average variable cost

Description : If a firm shut down at a level when AVC > Price, the firm restricts its losses to (a) Total fixed cost ; (b) Average fixed cost ; (c) Variable cost ; (d) Average variable cost

Last Answer : (a) Total fixed cost ;

Which of the following cannot be U shaped curve (a) AFC curve ; (b) AC curve ; (c) AVC curve ; (d) AMC curve

Description : Which of the following cannot be U shaped curve (a) AFC curve ; (b) AC curve ; (c) AVC curve ; (d) AMC curve

Last Answer : (a) AFC curve ;

In the short run, diminishing marginal returns is implied by (a) Rising MC ; (b) Falling MC ; (c) Rising AVC ; (d) Constant TC

Description : In the short run, diminishing marginal returns is implied by (a) Rising MC ; (b) Falling MC ; (c) Rising AVC ; (d) Constant TC

Last Answer : (a) Rising MC ;

The slope of total variable cost curve equals…………….. (a) AVC ; (b) MC ; (c) AC ; (d) MPP

Description : The slope of total variable cost curve equals…………….. (a) AVC ; (b) MC ; (c) AC ; (d) MPP 

Last Answer : (b) MC ; 

Total cost is the arithmetic sum of (a) AFC and AVC ; (b) FC and Variable cost ; (c) Marginal cost and variable cost; (d) Sunk cost and fixed cost

Description : Total cost is the arithmetic sum of (a) AFC and AVC ; (b) FC and Variable cost ; (c) Marginal cost and variable cost; (d) Sunk cost and fixed cost

Last Answer : (b) FC and Variable cost ;

Which of these curve never touch X axis (a) AVC ; (b) AFC ; (c) TC ; (d) MC

Description : Which of these curve never touch X axis (a) AVC ; (b) AFC ; (c) TC ; (d) MC

Last Answer :  (b) AFC ;

Which of the following statement is true about average cost function (a) ATC= AFC-AVC ; (b) AVC = AFC + ATC ;(c) AFC = ATC+AVC ;(d) ATC = AFC + AVC

Description : Which of the following statement is true about average cost function (a) ATC= AFC-AVC ; (b) AVC = AFC + ATC ;(c) AFC = ATC+AVC ;(d) ATC = AFC + AVC

Last Answer : ;(d) ATC = AFC + AVC

Which strand of mRNA would be made during transcription using the DNA strand shown below AGC GCT?

Description : Which strand of mRNA would be made during transcription using the DNA strand shown below AGC GCT?

Last Answer : Transcription is the process whereby DNA is used as a template to form a complementary RNA strand. This is the first stage of protein production or the flow of information within a cell. ... denatured, uncoupling the two complementary strands and allowing the template strand to be accessed by the e

The first mass produced embedded system is A. Minuteman-I B. Minuteman-II C. Autonetics D-17 D. Apollo Guidance Computer (AGC)

Description : The first mass produced embedded system is A. Minuteman-I B. Minuteman-II C. Autonetics D-17 D. Apollo Guidance Computer (AGC)

Last Answer : C. Autonetics D-17

The first recognized modern embedded system is A. Apple computer B. Apollo Guidance Computer (AGC) C. Calculator D. Radio navigation system

Description : The first recognized modern embedded system is A. Apple computer B. Apollo Guidance Computer (AGC) C. Calculator D. Radio navigation system

Last Answer : B. Apollo Guidance Computer (AGC)

The first mass produced embedded system is A. Minuteman-I B. Minuteman-II C. Autonetics D-17 D. Apollo Guidance Computer (AGC)

Description : The first mass produced embedded system is A. Minuteman-I B. Minuteman-II C. Autonetics D-17 D. Apollo Guidance Computer (AGC) 

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The first recognized modern embedded system is A. Apple computer B. Apollo Guidance Computer (AGC) C. Calculator D. Radio navigation system

Description : The first recognized modern embedded system is A. Apple computer B. Apollo Guidance Computer (AGC) C. Calculator D. Radio navigation system

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State the need of AGC. List the different types of AGC with neat graph.

Description : State the need of AGC. List the different types of AGC with neat graph.

Last Answer : Need of AGC:- The need or purpose of AGC circuit is to maintain the output voltage level (volume) of radio receiver constant over a wide range of RF input signal level.  AGC also helps to smooth out the rapid ... of AGC:- 1) Simple AGC 2) Delayed AGC Graphical representation of AGC:- 

State the need of AGC.

Description : State the need of AGC.

Last Answer : Need of AGC:- The need or purpose of AGC circuit is to maintain the output voltage level (volume) of radio receiver constant over a wide range of RF input signal level. AGC ... long distance short wave reception & prevents overloading of the last IF amplifier which might otherwise have occurred 

Explain simple AGC and delayed AGC with the help of neat graph.

Description : Explain simple AGC and delayed AGC with the help of neat graph.

Last Answer : 1) Simple AGC:- Simple AGC is a system by means of which overall gain of a radio receiver is varied, automatically with the changing strength of the receiver signal to keep the ... not used in low cost radio receiver. It is used in high quality receiver like communication receiver.

What is the disadvantage of using a double receiver instead of two individual receivers?

Description : What is the disadvantage of using a double receiver instead of two individual receivers?

Last Answer : If one of the receivers goes bad the entire unit must be replaced.

When is a synchro receiver (TR) properly zeroed?

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What is the most likely problem if the transmitter shaft reads 0º when the receiver shaft indicates 180º?

Description : What is the most likely problem if the transmitter shaft reads 0º when the receiver shaft indicates 180º?

Last Answer : The rotor leads on either the transmitter or the receiver are reversed.

What two receiver leads are reversed to reverse the rotor's direction of rotation?

Description : What two receiver leads are reversed to reverse the rotor's direction of rotation?

Last Answer : 1 and S3.

What is the relationship between the transmitter and receiver stator voltages when their rotors are in correspondence?

Description : What is the relationship between the transmitter and receiver stator voltages when their rotors are in correspondence?

Last Answer : The voltages are equal and oppose each other.

What is the physical difference between a synchro transmitter and a synchro receiver?

Description : What is the physical difference between a synchro transmitter and a synchro receiver?

Last Answer : A synchro receiver uses some form of damping to retard excessive oscillations or spinning.

Receiver bandwidth is defined as those frequencies spread between what two points of the receiver response curve?

Description : Receiver bandwidth is defined as those frequencies spread between what two points of the receiver response curve?

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When measuring receiver sensitivity, what quantities must you add to the dBm reading obtained on the signal generator or test set?

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You determine receiver sensitivity by measuring the power level of what signal?

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Last Answer : Minimum discernible signal (mds).

A loss of receiver sensitivity has the same effect on range performance as what other loss?

Description : A loss of receiver sensitivity has the same effect on range performance as what other loss?

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Where should the transmitter spectrum be located with respect to the receiver response curve?

Description : Where should the transmitter spectrum be located with respect to the receiver response curve?

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A monopulse receiver has how many separate channels?

Description : A monopulse receiver has how many separate channels?

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How does ftc affect receiver gain, if at all?

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Immediately after the transmitter fires, stc reduces the receiver gain to what level?

Description : Immediately after the transmitter fires, stc reduces the receiver gain to what level?

Last Answer : Zero.

Which receiver component converts the IF pulses to video pulses?

Description : Which receiver component converts the IF pulses to video pulses?

Last Answer : Detector.

What receiver circuit actually produces the IF frequency?

Description : What receiver circuit actually produces the IF frequency?

Last Answer : Mixer.

Which component of the receiver produces the signal that is mixed with the received signal to produce the IF signal?

Description : Which component of the receiver produces the signal that is mixed with the received signal to produce the IF signal?

Last Answer : Local oscillator.

What type of receiver is most often used in radar systems?

Description : What type of receiver is most often used in radar systems?

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What tube in a duplexer has the primary function of disconnecting the receiver?

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what causes the initial and final pulses on the receiver output signal?

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Last Answer : Leakage from the duplexer.

What is the result of an impedance mismatch between a receiver or transmitter and its transmission line or antenna?

Description : What is the result of an impedance mismatch between a receiver or transmitter and its transmission line or antenna?

Last Answer : High vswr, which equates to poor reception or a loss of power output.

Which amplifier stage (the preamplifier or the postamplifier) is a dominant contributor of noise and significantly influences the sensitivity of the receiver?

Description : Which amplifier stage (the preamplifier or the postamplifier) is a dominant contributor of noise and significantly influences the sensitivity of the receiver?

Last Answer : The preamplifier.

Define receiver dynamic range.

Description : Define receiver dynamic range.

Last Answer : The range of optical power levels over which the receiver operates within the specified values. It

. Which part of the receiver amplifies the electrical signal to a level suitable for further signal processing?

Description : . Which part of the receiver amplifies the electrical signal to a level suitable for further signal processing?

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What is a fiber optic receiver?

Description : What is a fiber optic receiver?

Last Answer : An electro-optic device that accepts optical signals from an optical fiber and converts them into electrical signals