[time-nuts] Wikipedia and Residual Phase Noise

Gerhard Hoffmann dk4xp at arcor.de
Tue Jul 28 12:54:47 UTC 2015


Am 14.07.2015 um 02:32 schrieb KA2WEU--- via time-nuts:
> Dear Magnus,
>   
> With your kind permission I (totally ) disagree with you . We make 10 GHz
> oscillators which are almost getting close to the Poseidon Sapphire , but
optical?
> the post power amplifier
> at 10 Ghz has a much higher noise floor then the source . I have not yet
> solved the problem
>   
> My new FSWP (R&S) Analyzer can measure down to - 190dBc/Hz .
How do you do _that_? 20-cornered hat with 20 ADCs and references?
The ADCs and FPGAs would be cheap enough, the references less so.

>   
> Wish me luck, Ulrich
>   

Wish granted, Gerhard DK4XP  ;-)










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