Communication System Question 13
Audio signal cannot be transmitted without proper equipment or medium
Options:
A) The signal has more noise
B) The signal cannot be amplified for distance
C) Communication of the transmitting antenna length
D) All of these are correct.
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Answer:
Correct Answer: D
Solution:
[d] Following are the problems which are faced while transmitting audio signals directly. (i) These signals have a relatively short range (ii) If everybody started transmitting these low frequency signals directly, mutual interference will render all of them ineffective (iii) Size of antenna required for their efficient radiation would be larger.
BETA
