Author Topic: What is transmission impairment?  (Read 1707 times)


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What is transmission impairment?
« on: May 11, 2014, 09:29:01 AM »
What is transmission impairment?

Pavithra M

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Re: What is transmission impairment?
« Reply #1 on: January 28, 2015, 04:20:52 AM »
Signals travel through transmission media, which are not perfect.
The imperfection causes signal impairment.
This means that the signal at the beginning of the medium is not the same as the signal at the end of the medium.
What is sent is not what is received.
Three causes of impairment are attenuation, distortion, and noise.


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Re: What is transmission impairment?
« Reply #2 on: April 13, 2015, 07:29:15 PM »
With any communications system, it must be recognized that the received signal will differ from the transmitted signal due to various transmission impairments. For analog signals, these impairments introduce various random modifications that degrade the signal quality. For digital signals, bit errors are introduced: A binary 1 is trans- formed into a binary 0 and vice versa. In this section, we examine the various impairments and comment on their effect on the information-carrying capacity of a communication link.