Hi I’m hoping that you can “add” a GPS to the slave by putting it outboard. There have to be a limited number of strings that the slave needs to see. Once it sees those strings, it starts locking up to the PPS. The only thing it might use in the lock process is the sawtooth correction data. Past that it could either watch the “all is ok” traffic or it could let the GPS CPU do that and just watch a status line.
If you can put it on outboard with next to no traffic, mating a modern GPS up with one of the slaves should be easier than mating it up with the GPS box. Bob > On Nov 3, 2014, at 2:23 PM, Anthony Roby <ar...@antamy.com> wrote: > > The photos I posted at http://goo.gl/87e8GG show the differences between the > two boards - there is more to it than just adding a GPS board. The underside > has a bunch of additional components beneath the antenna connector. > > Anthony > > -----Original Message----- > From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of GandalfG8--- > via time-nuts > Sent: Monday, November 03, 2014 12:00 PM > To: time-nuts@febo.com > Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, > Z3811A, Z3812... > > Hi Arthur > > Thanks for your further comments, and certainly no need for the "sorry". > > It was your pioneering work that inspired recent efforts to start with, and > the confusion over the pin numbers that led Gotz to the, just grounding pins > 2 and 3, 2 link solution we have now. > > Overall, I'd say, not a bad result:-) > > Good luck with the 10 MHz conversion, I'll probably do that soon as well, > after bringing out the 5 Mhz, but for now I'm just letting them cook whilst > monitoring the 15MHz. > > As has been previously commented, aside from the GPS module, there seems to > be very little difference between the Ref-0 and Ref-1 modules, and I'm quite > tempted to make up my own patch lead, whip out the GPS module from one of my > Ref-1 units, and then couple the two Ref-1s together to see how they cope > with that:-) > > Regards > > Nigel > GM8PZR > > > > > In a message dated 03/11/2014 17:13:15 GMT Standard Time, > golgarfrinc...@gmail.com writes: > > GandalfG8 at aol.com GandalfG8 at aol.com Sun Nov 2 09:08:30 EST 2014 > wrote: > > "Ooh err, whoops, and oh dear !! > > Arthur, I've only just had a chance to look at your latest photos, and > unless I've really got my wires crossed, if you'll pardon the expression:-), > your links on J5 are not shown on pins 2, 10, 12, and 15, but on pins 4, 6, > 11, and 13." > +++++++++++++++++++++ > > Darn-I'm glad someone was paying more attention than I was when I wrote that > years ago. Apparently when I was documenting what modifications I had made I > just picked up a 15 pin D plug shell to get the numbers instead of looking > at the obvious numbers on the RFTG socket connector and those connectors > being mirror images have the numbers reversed. I was out geocaching > yesterday and didn't catch up on the new posts until this morning so I'm a > little late in responding. I also checked to see if I had any other > scribbles on the changes I made and found this: "If pin 2 is held low the > 'ON' LED will flash. A pulse low will turn it on. > The RC timer holds pin 2 low to flash for about 6 seconds so you can see it > actually happens then pin 2 returns high and the 'ON' LED stays on solid." > > So apparently some of the parts I added were to just make the light look > like they were working correctly (can you spell OCD?) and may not be > necessary. As I originally said, this was a hack and I wanted others to > duplicate what I had done to see if any of it made sense to them. At least > it appears that by adding the circuit I came up with and/or adding jumpers > you can get the RFTG-u REF 1 unit to work without the slave unit. > I just ordered another RFTG-u REF 1 and will see if I can modify that and > get it to output 10Mhz instead of 5Mhz like my original unit. > > Sorry about the screw up on the numbers. > > -Arthur > _______________________________________________ > 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.
