Especially if they help design the cute connecting wires. 3D like.
On Thu, Jun 13, 2013 at 12:02 PM, J. L. Trantham <[email protected]> wrote: > Paul, > > Having an 'engineering' mind set, it's all about form and function. > However, my wife and daughter being Interior Designers, it's all about > presentation. Unfortunately, selling is not my long suit. > > However, as a 'modern art' piece, I might have a chance. :^) > > Joe > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of paul swed > Sent: Thursday, June 13, 2013 10:37 AM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Spectracom 8170 Time of Day grief...(WWVB Clock) > > Joe > Thats really a silly statement. The issue is this, we tech types put things > in rows and columns. But true artists use dead bug style with lots of wire > and parts flying everyplace. > Put the whole glob in a picture frame and you have a seriously worthy piece > of art. How could your wife complain? Plus you get time out of it. Its all > about how you sell it. > Regards > Paul > > > On Thu, Jun 13, 2013 at 10:32 AM, J. L. Trantham <[email protected]> wrote: > > > In a slightly different direction, are there any commercially > > available 'PSK Compliant Atomic Clocks' out there for those of us used > > to looking at the 'correct time'? > > > > Also, what, exactly, was the advantage of changing modulation formats? > > That > > 'killed' all the existing 'Atomic Clocks'? > > > > I have looked at the Costas Loop article by Paul and it looks doable > > but I probably could not make it look presentable to my wife sitting on a > shelf. > > > > Thanks. > > > > Joe > > > > -----Original Message----- > > From: [email protected] [mailto:[email protected]] > > On Behalf Of paul swed > > Sent: Thursday, June 13, 2013 7:34 AM > > To: Discussion of precise time and frequency measurement > > Subject: Re: [time-nuts] Spectracom 8170 Time of Day grief... > > > > Burt search time nuts its all there. Its not a kit by any means. > > Spectracom did a very good job. To good, though in reality they simply > > reused the phase tracking rcvr from other units. Essentially the > > system locks to the stable carrier creating a local replica and then > > removes the carrier recovering just the AM. Or think of it as > > subtracting the carrier leaving just the data. Very good design very > > bad for PSK, since the carrier no longer has a relationship. > > Nist and spectracom did put notices and such out for over a year, so > > what can you say. Though we all have lots of strong opinions actually. > > Don't want to start that thread again. > > I have often thought and will spend no time doing it. Simply replace > > the demod with a diode detector. Now its not actually quite that easy. > > But if the only thing I had was a 8170 what the heck. The schematics > > of the system are available at spectracom. > > > > Near as I can tell the 8170 would run about 2 days on a fix. > > > > Off to seriously sleazzy land. You could always bugger a gps clock > > into the system adapting GPS time to local time by a micro. But that > really is ugly. > > Though you end up with those nice clock digits working again. Hey when > > you do that send me the old rcvr parts. ;-) > > > > Regards > > Paul. > > > > > > On Thu, Jun 13, 2013 at 12:37 AM, Burt I. Weiner <[email protected]> wrote: > > > > > Paul, > > > > > > Ummmm... What a revolting development this is. My 9150-52054 have a > > > smaller readout out that I can't see without climbing up on my > > > bench, so I suppose I will no longer know what time it is. > > > > > > I've never really had to delve into the 8170 so I wasn't up to speed > > > on how they derived the data from the carrier prior to the new PSK > > > format. I was under the misunderstanding that it was strictly from > > > amplitude variation. I guess it is, except for the manner in which > > > they determine the changes. > > > > > > Please tell me about the "d-psk-r" you mentioned. Also do you know > > > the times of day WWVB reverts to the old method and for how long? > > > I'll have to go to their site and see. > > > > > > Burt, K6OQK > > > > > > At 04:46 PM 6/12/2013, [email protected] wrote > > > > > >> Burt > > >> One other tidbit the phase mod will exactly cause what you see. > > >> Spectracom used phase tracking to demodulate the AM time signal. > > >> Thats why its nuts. > > >> > > >> > > >> On Wed, Jun 12, 2013 at 5:49 PM, paul swed <[email protected]> > wrote: > > >> > > >> > Burt > > >> > There is nothing wrong with your 8170. WWVB no longer allows it > > >> > to work correctly because of the phase modulation. They went to > > >> > all psk about 1 month ago. They had been reverting back twice a > > >> > day for things like the 8170. > > >> > So the ole 8170 is dead. > > >> > You need to build something like the d-psk-r to get it going > > >> > though I > > >> have > > >> > not had time to actually add the am phase flipper precisely for > > >> > the > > >> likes > > >> > of a 8170. I have one also. > > >> > Sorry > > >> > Paul > > >> > WB8TSL > > >> >> > > >> > On Wed, Jun 12, 2013 at 5:35 PM, Burt I. Weiner <[email protected]> > wrote: > > >> > > > >> >> My good old Spectracom 8170 is not setting time. I don't use it > > >> >> for frequency, just as a clock for my Hazetorium. I live about > > >> >> 20 minutes north of downtown Los Angles in Glendale. The > > >> >> antenna I'm using is the Ferrite Rod loop in PVC that came with the > 8170. > > >> >> It's located on my > > >> back > > >> >> porch just laying on the floor with its maximum pickup direction > > >> towards > > >> >> Boulder, Colorado. It has worked reliably for many years in > > >> >> that > > >> location. > > >> >> > > >> >> The symptoms are... > > >> > > > > > > Burt I. Weiner Associates > > > Broadcast Technical Services > > > Glendale, California U.S.A. > > > [email protected] > > > www.biwa.cc > > > K6OQK > > > ______________________________**_________________ > > > time-nuts mailing list -- [email protected] To unsubscribe, go to > > > https://www.febo.com/cgi-bin/** > > > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/list > > > in > > > fo/time-nuts> > > > and follow the instructions there. > > > > > _______________________________________________ > > time-nuts mailing list -- [email protected] To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > _______________________________________________ > > time-nuts mailing list -- [email protected] To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
