Electrical engineers use dBm most customarily for energy specs due to the fact it’s a great deal less complicated to paintings with huge numbers the usage of the log scale rather than the linear scale. The dBm is a unit primarily based totally at the log scale, and may be definitely used with different layout additives with profits and losses laid out in dB.
Check out The Decibel article for extra whole clarification of why we use dB rather than linear devices. The Decibel article additionally explains many different not unusualplace devices primarily based totally at the dB, and a way to convert among their log and linear equivalents.
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