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 10 watts = 10 dBW, and 1,000,000 W = 60 dBW. where P is an arbitrary power.Although the
decibel (dB) is permitted for use alongside
SI units, the dBW is not.
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