A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is

Communication Systems
A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is

15

16

1

8

15

16

1

8

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Communication Systems
For a given carrier wave, maximum undistorted power is transmitted when value of modulation is

0.8

1

0.5

0.8

1

0.5

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Communication Systems
It is found that a ship to ship communication suffers from fading. This can be avoided by using

Space diversity

Directional antenna

Frequency diversity

Broad band antenna

Space diversity

Directional antenna

Frequency diversity

Broad band antenna

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Communication Systems
Which one of the following is analog?

Delta modulation

PWM

PCM

Differential PCM

Delta modulation

PWM

PCM

Differential PCM

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

-3

1

3

2

-3

1

3

2

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Communication Systems
If sampling is done at the rate of 10 kHz. The bandwidth required is

10 kHz

70 kHz

35 kHz

1280 kHz

10 kHz

70 kHz

35 kHz

1280 kHz

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Communication Systems

Communication Systems A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is

Communication Systems For a given carrier wave, maximum undistorted power is transmitted when value of modulation is

Communication Systems It is found that a ship to ship communication suffers from fading. This can be avoided by using

Communication Systems Which one of the following is analog?

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

Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is

Communication Systems
A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is

Communication Systems
For a given carrier wave, maximum undistorted power is transmitted when value of modulation is

Communication Systems
It is found that a ship to ship communication suffers from fading. This can be avoided by using

Communication Systems
Which one of the following is analog?

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

Communication Systems
If sampling is done at the rate of 10 kHz. The bandwidth required is