[time-nuts] GPS and Rubidium frequency standards and noise question (new...

[EWKehren at aol.com]

Most Rb's can be improved when it comes to phase noise even a FRK-H, some  
by replacing the internal oscillators, some by adding an external analog 
loop.  How ever multiplying to 10 GHz and you have to contend with the 60 db  
deterioration. One way around is higher frequency XTAL or SAW oscillator, but 
 that is an off list discussion.
Bert Kehren
 
 
In a message dated 6/4/2012 11:35:15 P.M. Eastern Daylight Time,  
timt at skybase.net writes:

On  3/06/2012 7:19 PM, Javier Herrero wrote:

[snip]

>
> I  don't remember if someone did a comparison in PN performance between 
>  the two FE-5680A flavours.
>

Hi Javier,

I've recently done  precisily that. See enclosed graph.

As for using RB's and Tbolts for LO  locking of mwave synths, a lot of 
discussion and testing is occurring on  our VK logger, specifically at  
URL....

http://www.vklogger.com/forum/viewtopic.php?f=40&t=10180

and

http://www.vklogger.com/forum/viewtopic.php?f=40&t=10229

regards

Tim

--  
VK2XTT :: QF56if :: BMARC :: WIA :: AMSAT-VK ::  AMSAT



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