[time-nuts] FE-5680A 1 pps photo

Rex rexa at sonic.net
Sat Feb 4 08:36:13 UTC 2012


Good image.

So, if I read that right it is a pulse about 1 uS wide and goes from 
base of zero volts to about 5.8 V.

Curious why the high level is over 5 V? Is your 5 V supply to the 
Rubidium unit up there?



On 2/3/2012 8:52 PM, Bob Bownes wrote:
> Just for completeness sake, here is a screen capture off of my DSA-602 of
> the 1pps. Note that the trace starts 500ns _before_ the 1pps triggers the
> capture. Ah the wonders of digital sampling.
>
>
> http://www.fastbobs.com/pictures/1pps.jpg
>
> Also as a pdf
>
> http://www.fastbobs.com/pictures/1pps.pdf
>
> Bob
>




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