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Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 10
1.
Which of following digital modulation technique?
ASK
FSK
PSK
All
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
A discrete zero memory information source has 40 symbols and each symbol is equally likely. The minimum number of bits required to code the source with uniform length code and entropy of the source are
5 and 5.03
6 and 5.83
5 and 6.64
6 and 5.32
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The standard intermediate frequency for FM ratio is
10.7 MHz
4.5 MHz
75 kHz
455 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
In an end fire array, the radiation pattern
is in the plane of array
is at right angles to array
is at an angle to the plane of array
either (b) or (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Armstrong FM transmitter uses
LC oscillator
crystal oscillator
RC oscillator
either (a) or (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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