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Communication Systems

Communication Systems
In practical commercial FM system, channel bandwidth is

150 kHz
100 kHz
108 MHz
88 MHz

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Communication Systems
A woofer should be fed from the input through a

Low pass filter
Band stop filter
Band pass filter
High pass filter

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Communication Systems
To eliminate ghosts in the picture

Use a longer transmission line
Change the antenna orientation of location
Connect a booster
Twist the transmission line

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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

8 kW
50 kW
0.5 kW
20 kW

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

0.5
1
0.8

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Communication Systems
Which of the following is a digital modulation technique?

DM
PCM
PSK
All

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