[time-nuts] Method for comparing oscillators

[Rex]

Poul-Henning Kamp wrote:

>In message <abec162c0908030758y62c9dffdq65f8341cd2bb84d1 at mail.gmail.com>, John Green writes:
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>>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.
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>Check the description and papers about Timing.com's way of doing it, they
>are quite clever.
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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.