I've noticed a disturbing tendency to quote the thermal noise
contribution to phase noise as -174dBm/Hz instead of the corrent value
of -177dBm/Hz as verified by measurement by NIST:
http://tf.nist.gov/phase/noisemeas.html
This error occurs in papers from Spectrum Microwave, Wenzel Associates
and others.
Blindly propagating the results quoted in the early literature isnt
particularly helpful given that the definition of SSB phase noise has
changed in the intervening decades.
Bruce
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