Editing Decibel (section)

==== Unpunctuated suffixes ====
; dB{{sub| A}} : see [[dB(A)]].
; dB{{sub| a}} : see [[dBrn adjusted|dB{{sub| rn}} adjusted]].
; dB{{sub| B}} : see [[dB(B)]].
; [[dBc|dB{{sub| c}}]] : relative to carrier – in [[telecommunications]], this indicates the relative levels of noise or sideband power, compared with the carrier power. 
; dB{{sub| C}} : see [[dB(C)]].
; dB{{sub| D}} : see [[dB(D)]].
; dB{{sub| d}} : dB(dipole) – the forward gain of an [[antenna (electronics)|antenna]] compared with a half-wave [[dipole antenna]]. 0&nbsp;dBd = 2.15&nbsp;dB{{sub| i}}
; dB{{sub| e}} : dB electrical.
; dB{{sub| f}} : dB(fW) – power relative to 1&nbsp;[[femtowatt]].
; [[dBFS|dB{{sub| FS}}]] : dB([[full scale]]) – the amplitude of a signal compared with the maximum which a device can handle before [[clipping (signal processing)|clipping]] occurs. Full-scale may be defined as the power level of a full-scale [[Sine wave|sinusoid]] or alternatively a full-scale [[Square wave (waveform)|square wave]]. A signal measured with reference to a full-scale sine-wave appears 3&nbsp;dB weaker when referenced to a full-scale square wave, thus: 0&nbsp;dB{{sub| FS}} (fullscale sine wave)&nbsp;= −3&nbsp;dB{{sub| FS}} (full-scale square wave).
; dB{{sub| G}} : [[G-weighted]] spectrum
; dB{{sub| i}} : dB(isotropic) – the forward [[antenna gain|gain of an antenna]] compared with the hypothetical [[isotropic antenna]], which uniformly distributes energy in all directions. [[Linear polarization]] of the EM field is assumed unless noted otherwise.
; dB{{sub| iC}} : dB(isotropic circular) – the forward gain of an antenna compared to a [[Circular polarization|circularly polarized]] isotropic antenna. There is no fixed conversion rule between dB{{sub| iC}} and dB{{sub| i }}, as it depends on the receiving antenna and the field polarization.
; dB{{sub| J}} : energy relative to 1&nbsp;[[joule]]: 1&nbsp;joule&nbsp;= 1&nbsp;watt-second&nbsp;= 1 watt per hertz, so power spectral density can be expressed in dB{{sub| J }}.
; dB{{sub| k}} : dB(kW) – power relative to 1&nbsp;[[kilowatt]].
; dB{{sub| K}} :'''dB(K)''' – decibels relative to [[kelvin]]: Used to express [[noise temperature]].
; [[dBm|dB{{sub| m}}]] : dB(mW) – power relative to 1 [[milliwatt]]. 
; dB{{sub| m²}} or dB{{sub| sm}} : dB(m²) – decibel relative to one square meter
; [[dBm0|dB{{sub| m0}}]] : Power in dB{{sub| m}} measured at a zero transmission level point.
; dB{{sub| m0s}} : Defined by ''Recommendation ITU-R V.574''.
; dB{{sub| mV}} : dB(mV<sub>RMS</sub>) – voltage relative to 1&nbsp;millivolt across 75&nbsp;Ω.
; dB{{sub| o}} : dB optical. A change of 1&nbsp;dB{{sub| o}} in optical power can result in a change of up to 2&nbsp;dB{{sub| e}} in electrical signal power in system that is thermal noise limited.
; dB{{sub| O}} : see dB{{sub| ov}} 
; dB{{sub| ov}} or dB{{sub| O}} : dB(overload) – the amplitude of a signal (usually audio) compared with the maximum which a device can handle before [[Clipping (signal processing)|clipping]] occurs.
; dB{{sub| pp}} : relative to the peak to peak [[sound pressure]].
; dB{{sub| pp}} : relative to the maximum value of the peak [[electrical power]].
; dB{{sub| q}} : dB(quarterwave) – the forward gain of an antenna compared to a quarter wavelength whip. Rarely used, except in some marketing material. 0&nbsp;dBq&nbsp;= −0.85&nbsp;dB{{sub| i}}
; dB{{sub| r}} : dB(relative) – simply a relative difference from something else, which is made apparent in context.  The difference of a filter's response to nominal levels, for instance.
; [[dBrn|dB{{sub| rn}}]] : dB above [[reference noise]].  See also '''dB{{sub| rnC}}'''
; dB{{sub| rnC}} : '''dB{{sub| rnC}}''' represents an audio level measurement, typically in a telephone circuit, relative to the [[circuit noise level]], with the measurement of this level frequency-weighted by a standard C-message weighting filter.  The C-message weighting filter was chiefly used in North America.
; dB{{sub| sm}} : see dB{{sub| m²}}
; dB{{sub| TP}} : dB(true peak) – [[peak amplitude]] of a signal compared with the maximum which a device can handle before clipping occurs.
; dB{{sub| u}} or dB{{sub| v}} : RMS voltage relative to <math>\ \sqrt{0.6\; }\ \mathsf{V}\ \approx 0.7746\ \mathsf{V}\ \approx -2.218\ \mathsf{dB_V} ~.</math>
; dB{{sub| u0s}} : Defined by ''Recommendation ITU-R V.574''.
; dB{{sub| uV}} : see dB{{sub| μV}}
; dB{{sub| uV/m}} : see dB{{sub| μV/m}}
; dB{{sub| v}} : see dB{{sub| u}}
; dB{{sub| V}} : dB(V<sub>RMS</sub>) – voltage relative to 1 volt, regardless of impedance.
; dB{{sub| VU}} : dB(VU) dB [[volume unit]]
; dB{{sub| W}} : dB(W) – power relative to 1&nbsp;[[watt]].
; dB{{sub| W·m⁻²·Hz⁻¹}} : [[Jansky#dBW·m−2·Hz−1|spectral density]] relative to 1 W·m⁻²·Hz⁻¹<ref>{{cite web |title=Units and calculations |website=iucaf.org |url=http://www.iucaf.org/sschool/mike/Units_and_Calculations.ppt |last1=Davis |first1=Mike |format=PPT |date=June 2002 |access-date=2025-03-12 |url-status=live |archive-url=https://web.archive.org/web/20160303223821/http://www.iucaf.org/sschool/mike/Units_and_Calculations.ppt |archive-date=2016-03-03 }}</ref>
; [[DBZ (meteorology)|dB{{sub| Z}}]] : dB(Z) – decibel relative to Z&nbsp;= 1&nbsp;mm<sup>6</sup>⋅m<sup>−3</sup>
; dB{{sub| μ}} : see dB{{sub| μV/m}}
; dB{{sub| μV}} or dB{{sub| uV}} : dB(μV<sub>RMS</sub>) – voltage relative to 1&nbsp;root mean square microvolt.
; dB{{sub| μV/m }}, dB{{sub| uV/m }}, or dB{{sub| μ }} : dB(μV/m) – [[electric field strength]] relative to 1&nbsp;[[microvolt]] per [[meter]].