What metric is used to express a relative increase or decrease in signal strength?

The correct answer is C. dB. Decibel (dB): A logarithmic unit expressing ratios of power or signal strength. It's used in RF contexts due to the wide range of signal levels encountered. dBm: Decibels relative to one milliwatt (power measurement). dBi: Decibels relative to an isotropic antenna (antenna gain).

RF Analysis

Question

Options

AW
BdBm
CdB
DmW

How the community answered

(33 responses)

A
3% (1)
B
9% (3)
C
73% (24)
D
15% (5)

Explanation

Decibel (dB): A logarithmic unit expressing ratios of power or signal strength. It's used in RF contexts due to the wide range of signal levels encountered. dBm: Decibels relative to one milliwatt (power measurement). dBi: Decibels relative to an isotropic antenna (antenna gain).

Topics

#dB#relative signal strength#RF metrics#measurement units

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