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Is this a "noise resistance" that is "equivalent", or is it a "resistance" corresponding to an "equivalent noise"? If the latter, I think it should be hyphenated, thus: equivalent-noise resistance; since that way it's unambiguous. Michael Hardy 23:11, 14 Mar 2005 (UTC)
None of the above. Noise may be measured in units of resistance, i.e. ohms. If you've got e.g. a single-transistor pre-amp hooked to an antenna, this is a handy figure for figuring out how much noise is going to come out of that transistor. linas 04:34, 4 December 2006 (UTC)
The hyphenated version would be noise-equivalent resistance. (FWIW, my credentials? I once did some GPS signal processing. For an omni antenna, the GPS signal is 20 dB under the noise. I learned the hard way you can't amplify your way out of that.) linas 16:47, 4 December 2006 (UTC)