Transit 5B-5 (from 1965) is nuclear powered and still transmitting. Nobody has any idea how to pull out the time code, though!
https://twitter.com/coastal8049/status/1260802699051692033 On Thu, Aug 6, 2020 at 4:43 PM jimlux <jim...@earthlink.net> wrote: > On 8/6/20 9:17 AM, Taka Kamiya via time-nuts wrote: > > Someone in this thread mentioned "at least 2 satellite time and > frequency solutions" exists already. I only know of GPS (GNSS) > constellations. What's the other? > > Transit? > > I don't believe they are still operational, though. > > > I wonder if one might be able to pick up time/frequency from a > commercial TV broadcast transponder. The transponders on the satellite > are typically bent pipes (for C-band anyway), I would assume that the > uplinks may or may not have stability comparable to terrestrial broadcast. > > One problem is, of course, that the satellites aren't in a stable > location (at least on a "meters" scale) - but one could certainly do > "common view" kinds of time transfer. > > > > > > > > --------------------------------------- > > (Mr.) Taka Kamiya > > KB4EMF / ex JF2DKG > > > > > > On Thursday, August 6, 2020, 12:01:27 PM EDT, paul swed < > paulsw...@gmail.com> wrote: > > > > Magnus > > Its honestly by luck that I know anything. From the bits I have read > Europe > > seems far closer to eLORAN then we are. Perhaps 6 months ago the US > > performed a series of tests 2 eLoran solutions and something like 6 or > more > > satellite solutions. I know the old Iridium satellites were in the tests > > and some other LEO satellites. > > But thats about it. > > What we need is a cheap SDR LORAN C sniffer. Low power runs 24 X 7 and > > turns a LED on if the stations active. > > Oh well another project in the someday pile. > > Regards > > Paul > > WB8TSL > > > > On Thu, Aug 6, 2020 at 2:42 AM Magnus Danielson <mag...@rubidium.se> > wrote: > > > >> Hi Paul, > >> > >> I only ask as you seem to track this thing the best here on time-nuts, > >> as far as I have seen, such that it is your emails that keeps me best up > >> to date with the progress. > >> > >> Cheers, > >> Magnus > >> > >> On 2020-08-05 19:21, paul swed wrote: > >>> Hi Magnus been a while since have emailed. > >>> Its one site that was a test transmitter. Its in New Jersey, USA. > >>> The goal of the testing I believe is to establish the viability of an > >>> alternate PNT reference to GPS. Additionally the ability to communicate > >>> some level of message broadcast. This should be identical to proposals > I > >>> have heard of in Europe. > >>> But I have no direct relationship to any of this. Like you, a very > >>> interested observer and hope that eLORAN wins the battle. > >>> Unfortunately there are many alternate proposals such as using other > >>> satellites. Hmmm if I wanted to advance my career in the Air Force or > >> Space > >>> Force (Yes thats actually real now). > >>> Would I select the lowly reliable as heck eLORAN at sub $100 M/year to > >>> operate. Or the glorious space based proposals in $B region. Never mind > >>> that at least 3 countries now have demonstrated killer satellites. > >>> Sorry for that editorial. > >>> Regards > >>> Paul > >>> WB8TSL > >>> > >>> On Wed, Aug 5, 2020 at 11:04 AM Magnus Danielson <mag...@rubidium.se> > >> wrote: > >>> > >>>> Hi, > >>>> > >>>> Do you know that they would do test with two actual transmitter sites? > >>>> > >>>> Cheers, > >>>> Magnus > >>>> > >>>> On 2020-08-05 16:00, paul swed wrote: > >>>>> Hello to fellow time nuts. > >>>>> Warm up those old Austrons. eLORAN out of New Jersey has been on the > >> air > >>>>> intermittently prior to a test run next week. Due to the storm they > >> have > >>>>> lost power and should have it back today or tomorrow. > >>>>> The intention will be on the air operation till the 20th. That's a > long > >>>>> run. Nice. > >>>>> Seems the Austron 2100s can be had for reasonable money these days > >> also. > >>>>> Enjoy. > >>>>> Paul > >>>>> WB8TSL > >>>>> _______________________________________________ > >>>>> time-nuts mailing list -- time-nuts@lists.febo.com > >>>>> To unsubscribe, go to > >>>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > >>>>> and follow the instructions there. > >>>> _______________________________________________ > >>>> time-nuts mailing list -- time-nuts@lists.febo.com > >>>> To unsubscribe, go to > >>>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > >>>> and follow the instructions there. > >>>> > >>> _______________________________________________ > >>> time-nuts mailing list -- time-nuts@lists.febo.com > >>> To unsubscribe, go to > >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > >>> and follow the instructions there. > >> > >> _______________________________________________ > >> time-nuts mailing list -- time-nuts@lists.febo.com > >> To unsubscribe, go to > >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > >> and follow the instructions there. > >> > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.