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analog signal

   Also found in: Financial, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
analog signal,
a continuous electric signal representing a specific condition, such as temperature, electrocardiogram waveforms, telephones, or computer modems.


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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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