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Definition of "dBm" |
A unit that defines a signal level by comparing it to a reference level. The reference level of 0dBm is defined as 1mW. The signal level in dBm is 10 times the log of the signal's power over that of the 0dBm reference. / An abbreviation used to represent power levels above or below a 1-milliwatt reference. / A unit that defines a signal level by comparing it to a reference level. The reference level of 0DBMS is defined as 1mW. The signal level in DBMS is 10 times the log of the signal's power over that of the 0dBm reference. / Decibel milliwatts is an abbreviation for the power ratio in decibels of the measured power referenced to one milliwatt. It is used in radio, microwave and fiber optic networks as a convenient measure of absolute power because of its capability to express both very large and very small values in a short form. Compare dBW, which is referenced to one watt. / Quantization, in mathematics and digital signal processing, is the process of mapping a large set of input values to a countable smaller set such as rounding values to some unit of precision. A device or algorithmic function that performs quantization is called a quantizer. The round-off error introduced by quantization is referred to as quantization error. / Power ratio in decibels referenced to 1 milliwatt. |
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