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

KA2WEU at aol.com KA2WEU at aol.com
Thu Aug 11 16:33:40 EDT 2016

See below 
In a message dated 8/11/2016 4:30:47 P.M. Eastern Daylight Time,  
john at miles.io writes:

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 - transistor large signal NF in dB  .  

Assuming a 50 ohm system, of course.

-- john,  KE5FX
Miles Design LLC

> -----Original Message-----
>  From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Mike
>  Feher
> Sent: Thursday, August 11, 2016 12:51 PM
> To: 'Discussion  of precise time and frequency measurement';
> KA2WEU at aol.com;  tvb at leapsecond.com
> Cc: enrico.rubiola at gmail.com
> Subject: Re:  [time-nuts] State of the art of crystal oscillator 
> kT is indeed relevant for a physical implementation. - Mike
> Mike B. Feher, EOZ Inc.
> 89 Arnold Blvd.
> Howell, NJ,  07731
> 732-886-5960 office
> 908-902-3831  cell

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