| dB |
Decibel. A unit used to compare the relative levels of electrical signals on a logarithmic scale. The dB refers to level of an audio signal.
출처: www.eem.tv/index2.php
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| dB |
Decibel. The standard unit used to express gain or loss of power. It indicates the logarithmic ratio of output power divided by input power. A power loss of 3dB is an attenuation of half of the original value.
출처: www.projectorcenter.com/glossary.asp
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| DBI |
Gain in decibels referenced to an isotropic radiator. An isotropic radiator is a theoretical antenna with equal gain to all points on isotropic sphere. 2.15 dBi = 0 dBd
출처: www2.aj-services.com/some_terms_that_will_be_used_...
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