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Decibel watt

What is decibel watt? A clear definition from the sound section of our glossary, with 13 related terms, tools to try and further reading.

Definition of Decibel watt

The decibel watt (dBW or dBW) is a unit for the measurement of the strength of a signal expressed in decibels relative to one watt. It is used because of its capability to express both very large and very small values of power in a short range of number; e.g., 1 milliwatt = −30 dBW, 1 watt = 0 dBW, 10 watts = 10 dBW, 100 watts = 20 dBW, and 1,000,000 W = 60 dBW.

{\displaystyle {\mbox{Power in dBW}}=10\log _{10}{\frac {\mbox{Power}}{1\mathrm {W} }}}

{\displaystyle {\mbox{Power in W}}=10^{\frac {\mbox{Power in dBW}}{10}}}

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What is Decibel watt?

The decibel watt (dBW or dBW) is a unit for the measurement of the strength of a signal expressed in decibels relative to one watt.

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