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Analog Signal

   Also found in: Medical, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
Analog Signal
A continuous, electrical wave containing data. The magnitude of the signal corresponds to the amount of data contained in it. An analog signal is one of two ways to change raw data into an electrical wave. See also: Digital system.


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For more than 60 years, television programs have been broadcast using an analog signal.
It is difficult to detect when degradation occurs in an analog signal but a digital systems?
The biggest problem is that a digital signal is either all there or not there at all, unlike an analog signal that will fade or get scratchy when it's weaker, but doesn't go silent.
 
 
 
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