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IEVref:702-02-11ID:
Language:enStatus: Standard
Term: gain
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Definition: 1. an increase between two points of an electric, electromagnetic, or acoustic power

2. the quantitative expression of a power increase by the ratio of the values at two points of a power or of a quantity related to power in a well defined manner

NOTE 1 – By extension, the word "gain" may represent the ratio of powers in a given situation and in a reference condition; for example the "gain of an antenna".

NOTE 2 – Gain is generally expressed in logarithmic units by a positive or negative value. When a gain has a negative value in logarithmic units, attenuation may be used instead of gain.


Publication date:1992-03
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