DECIBEL

Communications Systems Glossary

Communications Systems — Decibel

 

 

 

 

 

 

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Information on Decibel (dB)

A decibel (dB) is a measure of the relative strength of two signals. The number of decibels is 10 times the log of the ratio of the power of two signals, or 20 times the log of the ratio of the voltage of two signals.


 

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