dBm or dBmW (decibel-milliwatts) is a unit of power level expressed using a logarithmic decibel (dB) scale respective to one milliwatt (mW).

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Apr 23, 2025 · dBm expresses power relative to 1 milliwatt. Learn how to convert, interpret values, and use it in RF, fiber, and wireless systems.

dBm is a logarithmic unit for power levels, defined as decibels (dB) relative to a reference power of 1 milliwatt (mW). A power level of 0 dBm corresponds exactly to 1 mW.

dBm or dBmW (decibel-milliwatts) is a unit of power level expressed using a logarithmic decibel (dB) scale respective to one milliwatt (mW).

Jul 23, 2025 · dBm is commonly used to measure the signal strength of wires and cables. 1 dBm is equivalent to 0.001 watts or one milliwatt. dBm is a dimensionless quantity, similar to …

Jul 12, 2022 · dBm stands for decibel-milliwatts — a unit that measures absolute power of a radio signal, referenced to 1 milliwatt (mW). Unlike dB (which only shows relative change), dBm is …

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Measure of power in dBm = 10*Log (power in milliwatts / 1 milliwatt) So if you wanted to express your power in terms of dBm instead of milliwatts you would use the above equation.