Main Page | See live article | Alphabetical index In telecommunication, reference noise is the magnitude of circuit noise chosen as a reference for measurement. Note: Many different levels with a number of different weightings are in current use, and care must be taken to ensure that the proper parameters are stated. See also: dBa, dBa(F1A), dBa(HA1), dBa0, dBm, dBm(psoph), dBm0, dBrn,dBrnC, dBrnC0, dBrn(f1-f2), dBrn(144-line), dBx. Source: from Federal Standard 1037C and from MIL-STD-188 This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.