Unless your frequency counter has some anti-bobble tricks, you will always see +/-1 bobble in the last digit. Of course with longer gates, this last +/-1 becomes a smaller fraction of total count.
I personally do not trust a digital meter or counter that doesn't have bobble. I naturally think it's stuck unless it bobbles. Googling "anti bobble" turns up a lot of references to something to do with fabric and nothing to do with counters and gates :-). Tim N3QE On Mon, Jul 15, 2013 at 4:46 PM, Bob Stewart <[email protected]> wrote: > Hi Mark, > > I just tried a10 second gate, and it's still the same, though the > 4.9999999 happens less often. Could it be related to the fact that this is > a TTL signal? If I don't set the 50 ohm Z button it counts double - i.e. > 10MHz. > > bob > > > > > > >________________________________ > > From: Mark C. Stephens <[email protected]> > >To: Discussion of precise time and frequency measurement < > [email protected]> > >Sent: Monday, July 15, 2013 3:06 PM > >Subject: Re: [time-nuts] GPSDO - Does it work? > > > > > >Slow the Gate time down. > > > > > _______________________________________________ > 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.
