Graham / KE9H wrote:
Bruce:
The last time I looked, the thermal noise floor was still -174 dBm/Hz
(at 300 Kelvin).
http://en.wikipedia.org/wiki/Thermal_noise
Are you saying Boltzmann's constant is off by 3 dB, or are we mixing
apples and oranges here?
Is there a 3 dB adjustment between noise floor (at room temperature) and
the "single side band" phase noise measurement, which only looks at half
the noise, since it only looks on one side of the reference signal?
No the noise in the upper and lower sidebands are correlated
Thus the DSB PN is 6dB greater than the SSB PN.
Bruce
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