(decibels per milliwatt)

См. также в других словарях:

• Decibel — This article is about the ratio of measures. For sound or acoustic level, see Sound pressure. For other uses, see Decibel (disambiguation). Attenuation chart of an RG 6 Coaxial cable, measured in decibels per 100 feet of cable The decibel (dB) is …   Wikipedia

• Watt — For other uses, see Watt (disambiguation). Kilowatt redirects here. For the community in Kern County, California, see Kilowatt, California. KW redirects here. For other uses, see KW (disambiguation). The watt (pronounced /ˈwɒt/ wot; symbol: W) is …   Wikipedia

• Johnson–Nyquist noise — (thermal noise, Johnson noise, or Nyquist noise) is the electronic noise generated by the thermal agitation of the charge carriers (usually the electrons) inside an electrical conductor at equilibrium, which happens regardless of any applied… …   Wikipedia

• dBm — For other uses, see DBM (disambiguation). A schematic showing the relationship between dBu (the voltage source) and dBm (the power dissipated as heat by the 600 Ω resistor) dBm (sometimes dBmW) is an abbreviation for the power ratio in decibels… …   Wikipedia

• DBm — For other uses, see DBM (disambiguation) dBm (sometimes dBmW) is an abbreviation for the power ratio in decibels (dB) of the measured power referenced to one milliwatt (mW). It is used in radio, microwave and fiber optic networks as a convenient… …   Wikipedia

• unit — 1. One; a single person or thing. 2. A standard of measure, weight, or any other quality, by multiplications or fractions of which a scale or system is formed. 3. A group of persons or things considered as a whole because of mutual activities or… …   Medical dictionary

• AN/FPS-17 — The AN/FPS 17 is a ground based fixed beam radar system that was installed at Pirinçlik Air Base in south eastern Turkey.This system was deployed to satisfy scientific and technical intelligence collection requirements during the Cold War. The… …   Wikipedia

• VU meter — A VU meter is often included in analog audio equipment to display a signal level in Volume Units.It is intentionally a slow measurement, averaging out peaks and troughs of short duration to reflect the perceived loudness of the material. It was… …   Wikipedia

• Minimum detectable signal — (MDS) in a radio receiver is the smallest signal power that can be received at its input, processed by its conversion chain and demodulated by the receiver, resulting in usable information at the demodulator output. Contents 1 Equation 2… …   Wikipedia

• decibel — [des′ə bəl, bes′əbel΄] n. [ DECI + BEL] 1. Acoustics a numerical expression of the relative loudness of a sound: the difference in decibels between two sounds is ten times the common logarithm of the ratio of their power levels 2. Electronics… …   English World dictionary