Hi

How big are the jumps? Are they all N x some integer ns ?

If so, then yes, I’ve seen Rb’s that do exactly that. The answer is a defective 
divider chip.

Bob

> On Nov 23, 2015, at 6:01 PM, James Robbins <jsrobb...@earthlink.net> wrote:
> 
> Jumps can occur over as little as 500 seconds.  There is no pattern which I 
> can perceive.  When I look at the TL phase ("P") view, I see strong downward 
> going "pulses" in the phase view.  I have tried opening up the enclosure I 
> mounted the PRS10 in to cool it.  I can measure the temperature of the case 
> at about 40dC.  Well below it's spec, I think.  And, no, the 1PPS IN is not 
> being used to discipline the outputs.  I can send along a .tim file showing 
> the jumps to anyone who is interested and sends me their email.
> 
> Jim Robbins
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