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dBc (decibels relative to the carrier) is the power ratio of a signal to a carrier signal, expressed in decibels.For example, phase noise is expressed in dBc/Hz at a given frequency offset from the carrier. dBc can also be used as a measurement of Spurious-Free Dynamic Range between the desired signal and unwanted spurious outputs resulting from the use of signal converters such as a digital ...
Direct-buried cable (DBC) is a kind of communications or transmissions electrical cable which is especially designed to be buried under the ground without any other cover, sheath, or duct to protect it. [1] Most direct-buried cable is built to specific tolerances to heat, moisture, conductivity, and soil acidity.
A general note applies generally and is not called out with flags. 2. Find number: "FN" meaning "find number" refers to the ordinal number that gives an ID tag to one of the constituents in a parts list (list of materials, bill of materials). Thus "fasten using FN7" refers to a fastener that is "find number" 7 in the list. FoS: feature of size
where p rms is the root mean square of the measured sound pressure and p ref is the standard reference sound pressure of 20 micropascals in air or 1 micropascal in water. [ 34 ] Use of the decibel in underwater acoustics leads to confusion, in part because of this difference in reference value.
The role of the substrate in power electronics is to provide the interconnections to form an electric circuit (like a printed circuit board), and to cool the components.. Compared to materials and techniques used in lower power microelectronics, these substrates must carry higher currents and provide a higher voltage isolation (up to several thousand vo
DbC's "fail hard" property simplifies the debugging of contract behavior, as the intended behaviour of each method is clearly specified. This approach differs substantially from that of defensive programming , where the supplier is responsible for figuring out what to do when a precondition is broken.
Conventions differ for root mean square (RMS) measurements, but all peak measurements smaller than the maximum are negative levels. A digital signal that does not contain any samples at 0 dBFS can still clip when converted to analog form due to the signal reconstruction process interpolating between samples. [3]
The company was conceived as DBC Online by Data Broadcasting Corporation in the fall of 1995. [2] The marketwatch.com domain name was registered on July 30, 1997. [3] The website launched on October 30, 1997, as a 50/50 joint venture between DBC and CBS News, then run by Larry Kramer [2] and co-founder and chairman, Derek Reisfield. [4]