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Converting dBm to Watts

In the field of electrical engineering, power is most often specified in dBm–not Watts.  This brief post talks about how to convert between dBm and Watts and what the dBm unit means. A complete explanation of the decibel and log / linear conversions for many units (including dBm) can be found in The Decibel article. dBm and Watts Conversion Notice that the equations are for mW (milliwatts), not Watts.  That’s because the dBm is a unit based on the mW.  Converting to mW to W is...

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