Assertion (A): In FM the frequency of the carrier is varied by the modulating voltageReason (R): FM and PM are two forms of angle modulation.

Communication Systems
Assertion (A): In FM the frequency of the carrier is varied by the modulating voltageReason (R): FM and PM are two forms of angle modulation.

Both A and R are correct but R is not correct explanation of A

A is wrong but R is correct

Both A and R are correct and R is correct explanation of A

A is correct but R is wrong

Both A and R are correct but R is not correct explanation of A

A is wrong but R is correct

Both A and R are correct and R is correct explanation of A

A is correct but R is wrong

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Communication Systems
Circular polarization

None of these

Is useful in discrimination between reception of adjacent beams

Is useful in reducing depolarization effect on received wave

Involves critical alignment of transmitting and receiving antenna

None of these

Is useful in discrimination between reception of adjacent beams

Is useful in reducing depolarization effect on received wave

Involves critical alignment of transmitting and receiving antenna

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Communication Systems
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.

80.9

70.2

102.3

113

80.9

70.2

102.3

113

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Communication Systems
PAM stands for

Pulse Amplitude Modulation

Phase Analogue Modulation

Phase Amplitude Modulation

Pulse Analogue Modulation

Pulse Amplitude Modulation

Phase Analogue Modulation

Phase Amplitude Modulation

Pulse Analogue Modulation

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Communication Systems
What is the purpose of peak clipper circuits in radio transmitters?

To prevent overmodulation

To regulate oscillator I/P voltage

To reduce bandwidth

To increase bandwidth

To prevent overmodulation

To regulate oscillator I/P voltage

To reduce bandwidth

To increase bandwidth

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Communication Systems
If output power of a radio receiver is doubled, its volume is increased by __________ dB.

1

3

2

-3

1

3

2

-3

ANSWER DOWNLOAD EXAMIANS APP

Communication Systems

Communication Systems Assertion (A): In FM the frequency of the carrier is varied by the modulating voltageReason (R): FM and PM are two forms of angle modulation.

Communication Systems Circular polarization

Communication Systems An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.

Communication Systems PAM stands for

Communication Systems What is the purpose of peak clipper circuits in radio transmitters?

Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB.

Communication Systems
Assertion (A): In FM the frequency of the carrier is varied by the modulating voltageReason (R): FM and PM are two forms of angle modulation.

Communication Systems
Circular polarization

Communication Systems
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.

Communication Systems
PAM stands for

Communication Systems
What is the purpose of peak clipper circuits in radio transmitters?

Communication Systems
If output power of a radio receiver is doubled, its volume is increased by __________ dB.