What does a tone control circuit in a receiver do to the audio signal?

Question

What does a tone control circuit in a receiver do to the audio signal?

asked Aug 19, 2021 by anonymous

1 Answer

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A 1 Mhz carrier is amplitude modulated by a pure 200-Hz audio test tone. Which of the following combinations of frequencies represent the total content of the AM signal? A. 1 MHz and 200 Hz B. 1 MHz and 1000.2 kHz C. 999.8 kHz, 1000 kHz, and 1000.2 kHz D. 999.8 kHz and 1000.2 kHz

Description : A 1 Mhz carrier is amplitude modulated by a pure 200-Hz audio test tone. Which of the following combinations of frequencies represent the total content of the AM signal? A. 1 MHz and 200 Hz B. 1 MHz and 1000.2 kHz C. 999.8 kHz, 1000 kHz, and 1000.2 kHz D. 999.8 kHz and 1000.2 kHz

Last Answer : C. 999.8 kHz, 1000 kHz, and 1000.2 kHz

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

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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

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Last Answer : D. Decrease the receiver squelch, gain.

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Last Answer : 50 millivolts.

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Last Answer : It converts dc to audio or vice versa.

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

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If the mu of a tube is 85 and the signal at the control grid is 4 volts ac, the plate voltage will vary by what amount?

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Last Answer : 340 volts.

The plate voltage of a tube will vary 126 volts when a 3-volt ac signal is applied to the control grid. What is the gain of this tube?

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Last Answer : 42.

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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?

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

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

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

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

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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 type of receiver is most often used in radar systems?

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Last Answer : Superheterodyne.

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

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

Last Answer : Tr tube.

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

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

What is the main factor that determines receiver sensitivity?

Description : What is the main factor that determines receiver sensitivity?

Last Answer : Noise

List the main types of receiver noise.

Description : List the main types of receiver noise.