October 2018
Intermediate to advanced
555 pages
17h 33m
English
Content preview from Principles of Synchronous Digital Hierarchy
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138 Principles of Synchronous Digital Hierarchy
Exchange
equipment
Multiplexer Transmitter Receiver
Demultiplexer
Exchange
equipment
Antennae
Terrestrial media such as OFC,
coaxial etc.
FIGURE 6.15
Full communication link with its components.
139Signal Impairments, Error Detection, and Correction
The above values of A and B have been specially chosen for illustration,
as they will be very useful in visualizing various power levels when the
reader comes across such relationships any time. Note that a ratio of 1000 is
represented by 30. On extending it further, we can see that a ratio of 10
6
will
be equal to 60 db and so on. This provides a phenomen ...
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