[time-nuts] PRS10 1 PPS Out having random phase jumps
Bob Camp
kb8tq at n1k.org
Tue Nov 24 00:16:52 UTC 2015
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 <jsrobbins at 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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