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N=kTB = -174dBm/Hz (@290K)

Question asked by xmo on Jan 27, 2013
Latest reply on Jul 18, 2013 by n3go
N=kTB = -174dBm/Hz (@290K)

So says every reference and application note I have ever read.  NIST says this is wrong and it should be -177dBm/Hz.

I am curious as to the ramifications of this change on test instrumentation such as spectrum and noise figure analyzers, calibration of noise sources, etc.

Does Agilent have an application note or document that clarifies this discrepancy?