[time-nuts] Z3801A recovering

John Green wpxs472 at gmail.com
Fri Mar 18 10:21:36 EDT 2016


Joe, I'd be interested in knowing what you find out. My Z3801 is acting a
lot like yours. It is currently locked, but.

On Thu, Mar 17, 2016 at 8:15 AM, Joseph Gray <jgray at zianet.com> wrote:

> Dave,
>
> I power cycled it about 20 days ago, which did no good. That is the
> 496 hours holdover time. This time, I did just the survey once
> command. I'll try your suggestion before attacking the hardware. I'm
> currently using Z38xx.exe.
>
> Joe Gray
> W5JG
>
>
> On Thu, Mar 17, 2016 at 4:30 AM, Artek Manuals <Manuals at artekmanuals.com>
> wrote:
> > Joe
> >
> > I am confused by the fact that it shows the unit has been in HOLDOVER for
> > 496 hours if you did a fresh survey
> >
> > Did you do a SYSTEM:PRESET: and GPS:POS:SURVEY:ONCE commands to initiate
> the
> > new survey or just the survey command or ???? What software are you
> running?
> >
> > I would power the unit down and let it sit for 24 hours and then do the
> two
> > commands above.
> >
> > What software are you running?
> >
> > Dave
> > NR1DX
> >
> >
> >
> >
> >
> > On 3/16/2016 7:38 PM, Joseph Gray wrote:
> >>
> >> As I mentioned a while back, my trusty Z3801A, which has worked well
> >> for several years, went into holdover some time ago and stayed there.
> >> Until recently, I haven't had time to look into this. About 20 days
> >> ago, I did power cycle it to see if that made a difference. It did
> >> not.
> >>
> >> In the middle of the night, last night (couldn't sleep), I decided to
> >> see what initiating a new survey would do. Since the unit doesn't lock
> >> to as many satellites as my Lucent with the newer Oncore, it took
> >> quite a while for the survey to finish.
> >>
> >> I just got home from work and this is what I am seeing:
> >>
> >> https://dl.dropboxusercontent.com/u/19599147/Z3801A.png
> >>
> >> The good news is that the unit no longer telling me the PPS is
> >> invalid. It looks like it will be another long while before it comes
> >> out of Recovery (assuming the PPS stays locked).
> >>
> >> I'm not the best at interpreting these graphs. At this point, should I
> >> be concerned abouth the spikey nature of the EFC graph, or will things
> >> calm down eventually? I assume that the PPS graph won't show until
> >> Recovery is done?
> >>
> >> If this unit loses PPS lock again, or otherwise acts up, then I would
> >> assume it is a hardware problem, and I'll have to put it on the bench.
> >>
> >> Joe Gray
> >> W5JG
> >> _______________________________________________
> >> time-nuts mailing list -- time-nuts at febo.com
> >> To unsubscribe, go to
> >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> >> and follow the instructions there.
> >>
> >
> >
> > --
> > Dave
> > Manuals at ArtekManuals.com
> > www.ArtekManuals.com
> >
> > ---
> > This email has been checked for viruses by Avast antivirus software.
> > https://www.avast.com/antivirus
> >
> >
> > _______________________________________________
> > time-nuts mailing list -- time-nuts at 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 at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>


More information about the time-nuts mailing list