[time-nuts] Difference between Oncore models

Mike Cook michael.cook at sfr.fr
Wed Mar 16 11:57:14 EDT 2016


> Le 16 mars 2016 à 12:03, Joseph Gray <jgray at zianet.com> a écrit :
> 
> I understand that the Oncore GPS in the Lucent units is a newer module
> that tracks eight satellites, vs the older Oncore in the Z3801A that
> only tracks six satellites.
> 
> I decided to do a re-survey with my Z3801A that has been in holdover
> for some time, just as a test. Watching the status screens from both
> GPSDOs, both are seeing the same number of satellites, however, the
> Z3801A is consistently locking to 3-4 fewer than the Lucent.
> 
> This begs the question, is the older Oncore module that deaf, or is
> mine defective. BTW, same antenna on a 4-port splitter, same elevation
> mask.
> 

I see the same symptoms so it is possibly just a difference in techno, though component aging might be a cause. 


> 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.

"The power of accurate observation is commonly called cynicism by those who have not got it. »
George Bernard Shaw


More information about the time-nuts mailing list