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Communication Systems

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

35 kHz
10 kHz
70 kHz
1280 kHz

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Communication Systems
Full duplex operation permits transmission in both directions at the same time.

False
True

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Communication Systems
For AM receivers the standard IF frequency is

455 kHz
10.7 MHz
1.07 MHz
106 kHz

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Communication Systems
For attenuation of high frequencies we should use

Series capacitance
Inductance
Resistance
Shunt capacitance

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Communication Systems
For telegraphy the most commonly used modulation system is

PCM
FSK
Single tone modulation
Two tone modulation

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Communication Systems
In case of low level amplitude modulation system, the amplifiers following the modulated stage must be

Non-linear devices
Linear devices
Harmonic devices
Class C amplifiers

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