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

David davidwhess at gmail.com
Sat Feb 4 08:59:11 UTC 2012


The probe compensation could be off.

What type of vertical plug-in was used?  The Tektronix 11000 series of
oscilloscopes scare me.

On Sat, 04 Feb 2012 00:36:13 -0800, Rex <rexa at sonic.net> wrote:

>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
>>
>> Bo




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