October 2018
Intermediate to advanced
555 pages
17h 33m
English
Content preview from Principles of Synchronous Digital Hierarchy
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39Advent of Digital Technology
23. Why is the digital signal not affected by the noise, interference, and
distortion?
24. What are the frequency components of a square wave? Illustrate
with a sketch.
25. What is responsible for the digital advantage of the shape of the digi-
tal signal or the digital processing? And how?
26. Explain the process of regeneration.
27. What is the effect of digital signal processing on channel capacity?
Please explain.
28. What are the advantages and disadvantages of digital technology?
Critical Thinking Questions
1. Why is the frequency band of 0.3 to 3.4 kHz chosen for voice
channels?
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