Re: [time-nuts] Setting Z3801 date
> Setting the date should update the EEPROM. Interesting. It's not working that way on mine. If I power cycle, it both T2 and Status page come up in Jul 1998. Is my EEPROM worn out? Older version of firmware? ?? HEWLETT-PACKARD,Z3801A,3542A01377,3543-A -- These are my opinions. I hate spam. ___ 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.
Re: [time-nuts] Setting Z3801 date
> My Z3801A happily accepted a recent year (2016?) when it rolled over. You > have to do the power-down, disconnect antenna, send corrected date, power > down, connect antenna, power up sequence. I don't think the updated date > appears until the unit starts tracking satellites again. I think the second power down in there resets the date. I'm using a python hack that shows both the T2 time string and the status page. When I set the date, the status page shows the new date. The T2 date doesn't change. When the GPS gets synced up, the T2 date and status page date both jump to goodness. -- These are my opinions. I hate spam. ___ 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.
Re: [time-nuts] Setting Z3801 date
Hi > On Mar 2, 2018, at 5:05 PM, Hal Murray wrote: > > Thorbjørn Pedersen said: >> Try this: >> Disconnect antenna. >> Power off / power on. >> Set date correctly. (You have the commands?) >> Connect antenna. >> Let it survey and stabilize > > That's what I remember. > > The first problem is that the Z3801 doesn't accept dates after 2007. It > gives an E-222 error. (I forget the text, it's something like out-of-range.) > I didn't search for the exact cutoff. I just edited the year and tried > again, so it's somewhere in 2007 or 2008. > > The second problem is that I'm using an "antenna challenged" setup. So it > takes a while to latch on to the satellites. > > But I tried again. This time, I set it to 2007 and after waiting long > enough, GPS got synced and time jumped to the correct time. > > Thanks for the poke. > > --- > > Then I shifted to the KS-24361 > > It doesn't complain about the dates it doesn't like. It just doesn't do > anything with them. > > It takes dates after 2007. I forget the exact break point. > > But when the GPS syncs up, it jumps to 1998. ?? Sigh. Even with newer hardware, there are still weird date issues. The simple fact that these GPSDO’s keep on running at all is a bit amazing. Best to simply use the PPS from the GPSDO and get the date / hours / minutes / seconds tag info by some other means. Let that “other means” sort out leap seconds and all the other nonsense that is likely to tie things in knots. We do have a GPS week zero coming up soon …. Bob > > > > > -- > These are my opinions. I hate spam. > > > > ___ > 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.
Re: [time-nuts] Setting Z3801 date
Thorbjørn Pedersen said: > Try this: > Disconnect antenna. > Power off / power on. > Set date correctly. (You have the commands?) > Connect antenna. > Let it survey and stabilize That's what I remember. The first problem is that the Z3801 doesn't accept dates after 2007. It gives an E-222 error. (I forget the text, it's something like out-of-range.) I didn't search for the exact cutoff. I just edited the year and tried again, so it's somewhere in 2007 or 2008. The second problem is that I'm using an "antenna challenged" setup. So it takes a while to latch on to the satellites. But I tried again. This time, I set it to 2007 and after waiting long enough, GPS got synced and time jumped to the correct time. Thanks for the poke. --- Then I shifted to the KS-24361 It doesn't complain about the dates it doesn't like. It just doesn't do anything with them. It takes dates after 2007. I forget the exact break point. But when the GPS syncs up, it jumps to 1998. ?? Sigh. -- These are my opinions. I hate spam. ___ 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.
