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decibels above 1 picowatt

См. также в других словарях:

  • DBrn — The symbol dBrn or dB(rn) is an abbreviation for decibels above reference noise. Weighted noise power in dB is referred to 1.0 picowatt. Thus, 0 dBrn = 90 dBm. Use of 144 line, 144 receiver, or C message weighting, or flat weighting, can be… …   Wikipedia

  • dBrn — The symbol dBrn or dB(rn) is an abbreviation for decibels above reference noise. Weighted noise power in dB is referred to 1.0 picowatt. Thus, 0 dBrn = 90 dBm. Use of 144 line, 144 receiver, or C message weighting, or flat weighting, can be… …   Wikipedia

  • dB rn —    a symbol for decibels above reference noise, a unit measuring noise levels in telecommunications. The usual reference level is 90 dB m, which is equivalent to a power of 1 picowatt (1 pW). For example, 50 dB rn equals 40 dB m …   Dictionary of units of measurement

  • 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

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