Hi Pete -- The offset isn't surprising as the two dividers weren't synchronized but just free-running. Each one started at a slightly different time (remember, separate power supplies) and in fact I "bounced" the power leads on one unit to try to minimize the offset.
I could have used the PIC code's sync function with an external sync pulse to get the two units within a couple of hundred nanoseconds, but I didn't have the leads wired up to make that convenient. John ---- Pete said the following on 03/30/2009 09:39 PM: > John, > > Thanks for sharing your experimental results. > > I am surprised that the PIC divider outputs were > 85 ms apart when driven from the same source. I > am ignorant of their internal workings, but I would > expect the jitter results to be significantly impacted > by this. > > Any thoughts on the origin of the 85 ms differential? > Might this be a trigger point anomaly? (seems too big!) > > Resolving this difference should be interesting. > > Pete Rawson > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
