[time-nuts] DMTD question

Magnus Danielson magnus at rubidium.dyndns.org
Wed Jun 17 19:11:50 EDT 2009


Hi Corby,

> Corby
> 
> The noise contribution of the offset oscillator is incompletely canceled
> when the delay between the zero crossings for both channels isn't zero.
> The effect increases with the delay between zero crossings as your tests
> demonstrate.
> You can deduce little from the test apart from the fact that Osc 3 has
> worse performance than that of the other 2 oscillators.

I agree with Bruce, the delay removes the cross-correlation gain in the 
suppression of the transfer oscillator. Compare the oscillators 
pair-wise instead.

Cheers,
Magnus




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