[time-nuts] Endace TDS 24 unit anyone?

Hal Murray hmurray at megapathdsl.net
Wed Nov 3 18:10:00 UTC 2010


> And what is IRIG-B output suppose to look like...this unit seems to give off
> two distinct outputs....one is a 3.3V to 1.5V sweep, the other is just a
> 3.3V pulse (I assume that 1PPS). 

The wiki page on IRIG has the basics.

I expect you are seeing a 1 KHz signal that's AM modulated at 1 bit per 
second.

It might look cleaner if you sync your scope on the PPS signal.  If you delay 
out far enough you can probably find some bits that are changing.



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