144-receiver weighting
1DBrn — 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… …
2dBrn — 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… …
3Framing (social sciences) — For other uses, see Framing (disambiguation). Contents 1 Framing effect in communication research 1.1 Frame building 1.2 F …
4technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
5ГОСТ 21879-88: Телевидение вещательное. Термины и определения — Терминология ГОСТ 21879 88: Телевидение вещательное. Термины и определения оригинал документа: 150. 2 T импульс Телевизионный измерительный сигнал, имеющий форму синусквадратичной функции за один ее период между нулевыми значениями и длительность …
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