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Communication Systems

Communication Systems
For telegraphy the most commonly used modulation system is

Single tone modulation
PCM
FSK
Two tone modulation

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Communication Systems
The maximum power output of a standard A earth station over the total band allocated to satellite communication is about

0.5 kW
8 kW
50 kW
20 kW

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Communication Systems
Which one of the following is analog?

Differential PCM
PCM
PWM
Delta modulation

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Communication Systems
In TV systems, equalising pulses are sent during

Vertical blanking
Serrations
Horizontal blanking
Horizontal retrace

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Communication Systems
In practical commercial FM system, channel bandwidth is

88 MHz
100 kHz
150 kHz
108 MHz

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

False
True

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