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Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 13
6.
In a Vidicon camera tube,
both sides of the target plate have the coating of tin oxide
both sides of the target plate have the coating of antimony tri-sulphide
the side of target plate facing the light has a coating of tin oxide and the side facing electron gun has a coating of antimony trisulphide
the side of target plate facing the light has a coating of antimony trisulphide while the side facing the electron gun has a coating of tin oxide
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The distance at which a sky wave is received back on earth decreases with angle of incidence for all angles of incidence.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
A trigonometric function is synonyms to
orthogonal function
triangular function
singular function
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
A single tone modulating signal Vm cos ωt modulates a carrier A cos ωct. The carrier power (modulated) and side band powers are respectively
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The autocorrelation function of the white noise is
impulse function
step function
constant
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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