Decibel (dB)

Decibel (dB)

The standard unit used to express the ratio of two power levels. It is used in communications to express either a gain or loss in power between the input and output devices.

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Part of Speech: noun
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Industry/Domain: Aerospace
Category: Satellites
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Related terms

decibel (dB)

Engineering; Electronic engineering

A practical unit of relative gain. In terms of power, the relative gain in decibels is equal to: Gain (dB) = 10 log 10 ( P out /P in ), where P out is the output power and P ...

decibel (dB)

Telecommunications; General telecom

One tenth of the common logarithm of the ratio of relative powers, equal to 0. 1 B (bel. ) Note 1: The decibel is the conventional relative power ratio, rather than the bel, for ...

decibel (dB)

Aerospace; Satellites

The standard unit used to express the ratio of two power levels. It is used in communications to express either a gain or loss in power between the input and output devices.

decibel (dB)

Environment; Environment statistics

Unit of sound measurement on a logarithmic scale, with sound approximately doubling in loudness for every increase of 10 decibels.

decibel (dB)

Software; Globalization software service

A unit of signal strength or loudness, such as the signal on a data communications channel.

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