Hi So in the context of the original post, exactly how many Loran-C disciplined cell phone systems were there? … errr .. none.
The *only* systems that use any sort of external disciplining are GPS based. Self contained or “not disciplined” does not count in this case. Bob > On Feb 26, 2016, at 7:19 PM, Magnus Danielson <mag...@rubidium.dyndns.org> > wrote: > > Bob, > > Nope. Cell phones have been using land-lines for ages to sync up. It was with > the CDMA stuff that GPS phase was starting to be used to coordinate. GSM for > instance does not need GPS on the base-stations, it even goes to lengthy > extends to avoid it. CDMA didn't come into much use over here. GPS wasn't > even there when cell phones got started. It is only lately that GPS have > become a more integrated part of the system, but as GLONASS has become more > popular more base-stations support that too, in order to support AGNSS. > Landlines still provide an interesting backup and big efforts is invested on > the sync-networks. > > Cheers, > Magnus > > On 02/26/2016 11:56 PM, Bob Camp wrote: >> Hi >> >> ….. ummm ….. errr ….. >> >> Cell phones since they first came out have *never ever* been setup to run on >> anything other than GPS. Retrofitting them to use something else would take >> a decade or more. We didn’t “destroy the backup”, there never was one. >> Pretty much all of our surplus gizmos are cell tower surplus (like 99.99%). >> >> Bob >> >>> On Feb 26, 2016, at 11:57 AM, Burt I. Weiner <b...@att.net> wrote: >>> >>> Maybe I'm misreading what you're saying, but no matter the cause, it points >>> out what can and does happen when you put all the mission critical eggs in >>> one basket. That we don't have as reliable as possible a backup system, or >>> why we destroyed the one we had, is mind boggling. This is a perfect >>> example of what happens when you have people who don't understand the >>> problem/s making the wrong final decisions in spite of having been warned. >>> >>> It is my belief that if we are to be so reliant on these systems for so >>> many things, we need to have a functioning backup system in place. >>> >>> Burt, K6OQK >>> >>> >>> >>>> Mark Sims wrote: >>>>>> When is some organization going to explain what happened in February for >>>>>> almost two hours starting at 00:16 GMT? That subject has gone silent. >>>>>> Rob, NC0B >>>>> I heard back from NAVCEN. They said it was a Trimble issue and that >>>>> Trimble would contact me (they didn't). But that does not jive with >>>>> reports of failures in Motorola, Navman, etc receivers. >>>> >>>> I think we need to distinguish here. >>>> >>>> The January 26 issue was due to faulty data sent by the satellites, >>>> which caused GPS receivers to apply a wrong UTC correction which caused >>>> the UTC time to be off by 13.7 us. >>>> >>>> As explained by Luc Gaudin from http://naelcom.com (who obviously sell >>>> Trimble GPS receivers) the February 13 issue was indeed just a Trimble >>>> firmware problem. See: >>>> https://www.febo.com/pipermail/time-nuts/2016-February/096042.html >>>> https://www.febo.com/pipermail/time-nuts/2016-February/096050.html >>>> >>>> Martin >>> >>> Burt I. Weiner Associates >>> Broadcast Technical Services >>> Glendale, California U.S.A. >>> b...@att.net >>> www.biwa.cc >>> K6OQK >>> _______________________________________________ >>> 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. _______________________________________________ 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.
