[time-nuts] State of the art of crystal oscillator measurements

John Miles john at miles.io
Thu Aug 11 16:47:54 EDT 2016


Or rather -(177+DUT output power in dBm).  The minus sign makes the difference between the thermal floor and a nuclear war!

-- john, KE5FX
Miles Design LLC

> Remember that L(f) is expressed in dBc/Hz, not dBm/Hz.  If it were dBm/Hz,
> then kT would be the limit.  But in dBc/Hz terms, the limit is 177 + the DUT's
> output power in dBm.




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