Decibel watt
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The Decibel watt 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, eg 1 watt = 0 dBW, 10 watts = 10 dBW, 100 watts = 20 dBW and 1,000,000 W = 60 dBW.
Compare dBm, which is referenced to one milliwatt (0.001 W).
Although the decibel (dB) is permitted for use alongside SI units, the dBW is not.[1]
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