[time-nuts] Method for comparing oscillators

[Rex]

Bruce Griffiths wrote:

>Rex wrote:
>  
>
>>Poul-Henning Kamp wrote:
>>
>>    
>>
>>>In message
>>><abec162c0908030758y62c9dffdq65f8341cd2bb84d1 at mail.gmail.com>, John
>>>Green writes:
>>>
>>> 
>>>
>>>      
>>>
>>>>I have studied the dual mixer approach and the consensus is that it
>>>>is the
>>>>most accurate method. However, it seems pretty difficult to obtain that
>>>>accuracy.
>>>>  
>>>>        
>>>>
>>>Check the description and papers about Timing.com's way of doing it,
>>>they
>>>are quite clever.
>>>
>>>
>>> 
>>>
>>>      
>>>
>>Poul-Henning,
>>
>>Can you give a more specific reference to the documentation? I took a
>>look around www.symmetricom.com/resources/ (where timing.com
>>redirects) but it is not clear to me that anything I found describes
>>their way of doing it.
>>
>>
>>
>>    
>>
>Rex
>
>Look at the TSC5115A and the TSC5120A (download and read the manuals)
>plus the associated patents.
>
>Bruce
>
>
>
>  
>

Bruce,

Thanks, that looks interesting. I found the manual here...
http://www.symmetricom.com/media/files/support/ttm/product-manual/5120A-MAN.pdf

But I haven't figured out where to get a list of related patents. Can 
anyone provide key number(s) or point me to a list?