[time-nuts] Fwd: Re: Wikipedia and Residual Phase Noise

[Gerhard Hoffmann]

-------- Weitergeleitete Nachricht --------
Betreff: 	Re: [time-nuts] Wikipedia and Residual Phase Noise
Datum: 	Tue, 28 Jul 2015 14:54:47 +0200
Von: 	Gerhard Hoffmann <dk4xp at arcor.de>
Antwort an: 	ghf at hoffmann-hochfrequenz.de
An: 	time-nuts at febo.com



Am 14.07.2015 um 02:32 schrieb KA2WEU--- via time-nuts:
  
> 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  ;-)