[time-nuts] GPS Units in Z3801A

Bob kb8tq kb8tq at n1k.org
Tue Jul 11 18:45:32 EDT 2017


Hi

I’ve swapped out the GPS on a couple of them. Not 100% sure what went wrong. 
Swapping out a cheap GPS was a pretty easy decision compared to trying to 
board level troubleshoot an undocumented GPS. When the swap out fixed the problem,
I moved on. 

Bob

> On Jul 11, 2017, at 6:27 PM, Hal Murray <hmurray at megapathdsl.net> wrote:
> 
> 
> I have a Z3801A that has lost contact with GPS.  The GPS module is working - 
> the list of not-tracking  satellites changes occasionally, but it never 
> tracks anything.  I've tried swapping antennas and such but that hasn't 
> helped.
> 
> How often does the front end of the GPS module die?
> 
> Will the newer 8 channel modules work in the Z3801A or do I need to locate an 
> old 6 channel version?
> 
> Is there a tells-all web page or message to this list about GPS modules for 
> the Z3801A?  I'd expect one, but I haven't found it.
> 
> --------
> 
> I noticed that the UTC time from the status page is different from the T2 
> time.
> 
> T2201707100009039300141
> 
> The UTC clock seems to have gone crazy.  From the status page:
> Tracking: 0        Not Tracking: 6            UTC      06:28:15 [?] 01 Nov 
> 2018
> Tracking: 0        Not Tracking: 6            UTC      06:28:15 [?] 22 Aug 
> 2019
> Tracking: 0        Not Tracking: 6            UTC      06:28:15 [?] 19 Dec 
> 2019
> 
> The T2 time is a day old.  My guess is that it pulled the time it's using for 
> T2 from wherever it stores the log slots.
> 
> 
> 
> 
> -- 
> These are my opinions.  I hate spam.
> 
> 
> 
> _______________________________________________
> 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