Happy until the next power glitch... the setting does not seem to persist between boots. There may also be other conditions that causes it to forget your date. And when setting the date, you should disconnect the antenna first, then power on. Once the unit starts tracking satellites you can no longer enter the date. --------------- > I had one that screwed up. I power cycled and set the date. It's happy now.

Mark, >From some earlier threads on rollovers. Do you even need to set the time at all? Granted not great if the 3801 is a time source, but if its just frequency do you care? Thanks Paul WB8TSL On Tue, Sep 6, 2016 at 11:30 AM, Mark Sims <holrum@hotmail.com> wrote: > Happy until the next power glitch... the setting does not seem to persist > between boots. There may also be other conditions that causes it to > forget your date. > > And when setting the date, you should disconnect the antenna first, then > power on. Once the unit starts tracking satellites you can no longer enter > the date. > > > --------------- > > > I had one that screwed up. I power cycled and set the date. It's happy > now. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >

Paul, IIRC, we've never heard reports of GPSDO pulse or frequency outputs being affected by rollovers. In GPS there are internal rollovers every 1, 256, and 1024 weeks but the 1PPS and 10 MHz outputs are not dependent on any of these events. The same is true for leap seconds; they may be mishandled by some GPS receivers, but they have no effect on 1PPS or 10 MHz outputs. /tvb ----- Original Message ----- From: "paul swed" <paulswedb@gmail.com> To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Sent: Thursday, September 08, 2016 8:16 AM Subject: Re: [time-nuts] Z3801A gps week rollover > Mark, > From some earlier threads on rollovers. Do you even need to set the time at > all? > Granted not great if the 3801 is a time source, but if its just frequency > do you care? > Thanks > Paul > WB8TSL > > On Tue, Sep 6, 2016 at 11:30 AM, Mark Sims <holrum@hotmail.com> wrote: > >> Happy until the next power glitch... the setting does not seem to persist >> between boots. There may also be other conditions that causes it to >> forget your date. >> >> And when setting the date, you should disconnect the antenna first, then >> power on. Once the unit starts tracking satellites you can no longer enter >> the date. >> >> >> --------------- >> >> > I had one that screwed up. I power cycled and set the date. It's happy >> now. >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/ >> mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

Tom, Right on the pps and frequency. I should have been far more clear date and time. I fired up my 3801 and it locked up just fine. Need to check its message to see whats its putting out. I will say that I added 2 AA batteries that seem to be lasting for several years easily and they keep the memory in the GPS engine going and maybe that keeps the date and time correct so that once you have corrected the date and time maybe it sticks. Regards Paul. On Thu, Sep 8, 2016 at 1:05 PM, Tom Van Baak <tvb@leapsecond.com> wrote: > Paul, > > IIRC, we've never heard reports of GPSDO pulse or frequency outputs being > affected by rollovers. In GPS there are internal rollovers every 1, 256, > and 1024 weeks but the 1PPS and 10 MHz outputs are not dependent on any of > these events. The same is true for leap seconds; they may be mishandled by > some GPS receivers, but they have no effect on 1PPS or 10 MHz outputs. > > /tvb > > ----- Original Message ----- > From: "paul swed" <paulswedb@gmail.com> > To: "Discussion of precise time and frequency measurement" < > time-nuts@febo.com> > Sent: Thursday, September 08, 2016 8:16 AM > Subject: Re: [time-nuts] Z3801A gps week rollover > > > > Mark, > > From some earlier threads on rollovers. Do you even need to set the time > at > > all? > > Granted not great if the 3801 is a time source, but if its just frequency > > do you care? > > Thanks > > Paul > > WB8TSL > > > > On Tue, Sep 6, 2016 at 11:30 AM, Mark Sims <holrum@hotmail.com> wrote: > > > >> Happy until the next power glitch... the setting does not seem to > persist > >> between boots. There may also be other conditions that causes it to > >> forget your date. > >> > >> And when setting the date, you should disconnect the antenna first, then > >> power on. Once the unit starts tracking satellites you can no longer > enter > >> the date. > >> > >> > >> --------------- > >> > >> > I had one that screwed up. I power cycled and set the date. It's > happy > >> now. > >> _______________________________________________ > >> time-nuts mailing list -- time-nuts@febo.com > >> To unsubscribe, go to https://www.febo.com/cgi-bin/ > >> mailman/listinfo/time-nuts > >> and follow the instructions there. > >> > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >