[time-nuts] 5370 processor boards available
Please excuse this commercial announcement (although it is a near-zero profit endeavor). I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html ___ 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] Lecture at Warwick University tomorrow
Time nuts in the UK will be interested in the Institute of Physics lecture at Warwick University tomorrow by Helen Margolis from NPL. Title Keeping time with a single atom. http://www2.warwick.ac.uk/fac/sci/physics/news/iop/ Regards, David Partridge ___ 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.
Re: [time-nuts] 5370 processor boards available
In message 45dfb8f9-3595-4a5d-8dcc-fd7317988...@jks.com, John Seamons writes: I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html As one of the Beta-testers I can highly recommend this, it really gives your HP5370 a kick into the next millenium. The potential for future improvements is also virtually unlimited: How about hooking up an LCD display and calculate and show allan variance in real time ? Thanks a LOT John! -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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.
Re: [time-nuts] Different breed of time nuttery
A triumph of matter over mind. In a message dated 24/02/2014 04:35:21 GMT Standard Time, dmend...@gmail.com writes: This is a different breed of time nuttery than usual in this list but i think that at least some of you will enjoy it: http://www.behance.net/gallery/FLUX-1440/2420150 Found it at hack a day Daniel ___ 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.
Re: [time-nuts] 5370 processor boards available
Kudos! I applaud your effort, wish I had a 5370. Regards, David Partridge -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of John Seamons Sent: 24 February 2014 03:57 To: Discussion of precise time and frequency measurement Subject: [time-nuts] 5370 processor boards available Please excuse this commercial announcement (although it is a near-zero profit endeavor). I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html ___ 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.
Re: [time-nuts] 5370 processor boards available
Hi Very cool. Glad I kept that stack of 5370’s…. Bob On Feb 23, 2014, at 10:56 PM, John Seamons j...@jks.com wrote: Please excuse this commercial announcement (although it is a near-zero profit endeavor). I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html ___ 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.
Re: [time-nuts] Another atomic clock question
Hi Ok, so 0.1 second at the sync point is indeed a reasonable estimate. If that’s all you need to deal with (you correct out the crystal offset one way or the other) then: At 1 day you have 11.5 ppm accuracy. Roughly a 100 Hz beat note with WWV at 10 MHz. At 10 days you have 1.15 ppm. Roughly a 1 Hz beat note at 10 MHz. At 100 days you have 0.115 ppm. That would be about a 10 second period beat note. None of that is to say that a beat note is all there is to getting accuracy off of WWV or that the two approaches deliver the same net accuracy. Yes I’ve done the 10 second beat thing, it can be done with care and a good stable WWV signal. Bob On Feb 23, 2014, at 5:21 PM, Tom Van Baak t...@leapsecond.com wrote: Now that you have brought up this subject, do you know of any way to use these LaCrosse clocks to calibrate frequency standards? I suggest using a direct electric (1.5 VDC high-Z) or indirect magnetic (high gain) pickup on the coil to get the +/- pulse per second. Compare this time with your local frequency standard and over several days you should get accuracy better than 10 ms per day (1e-7). Here's an example of a raw phase plot: http://leapsecond.com/pages/Junghans/ /tvb ___ 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.
Re: [time-nuts] 5370 processor boards available
Yes indeed I received my board quite quickly. And now it sits in its rapping. Curses that evil work stuff. Physically it looks excellent Regards Paul. WB8TSL On Mon, Feb 24, 2014 at 7:35 AM, Bob Camp li...@rtty.us wrote: Hi Very cool. Glad I kept that stack of 5370's Bob On Feb 23, 2014, at 10:56 PM, John Seamons j...@jks.com wrote: Please excuse this commercial announcement (although it is a near-zero profit endeavor). I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html ___ 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.
Re: [time-nuts] 5370 processor boards available
An very impressive achievement. I particularly like the elegant use of the PRU to overcome the non-real time nature of the Angstrom distribution. Congratulations John! Didier KO4BB On Sun, Feb 23, 2014 at 9:56 PM, John Seamons j...@jks.com wrote: Please excuse this commercial announcement (although it is a near-zero profit endeavor). I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html ___ 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.
Re: [time-nuts] Different breed of time nuttery
Really impressive would be to have it create the patterns that make the numeric display out of only several feet of slowly moving rope connected as a loop... but that would require some thinking, rather than just a brute force approach. -Chuck Harris gandal...@aol.com wrote: A triumph of matter over mind. In a message dated 24/02/2014 04:35:21 GMT Standard Time, dmend...@gmail.com writes: This is a different breed of time nuttery than usual in this list but i think that at least some of you will enjoy it: http://www.behance.net/gallery/FLUX-1440/2420150 Found it at hack a day Daniel ___ 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.
Re: [time-nuts] Different breed of time nuttery
On 2/23/14 8:11 PM, Daniel Mendes wrote: This is a different breed of time nuttery than usual in this list but i think that at least some of you will enjoy it: http://www.behance.net/gallery/FLUX-1440/2420150 Found it at hack a day An enormous amount of work went into painting the pattern on that rope too. A cleverer approach would have been if there were multiple shorter rope loops... Or geared ropes. ___ 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.
Re: [time-nuts] 5370 processor boards available
As an early adopter/beta tester, I highly recommend this board! As yet, the board is only giving a glimpse of its potential, and yet it is completely replacing the original 6800 processor board. I am using a 5370A, with emulated 5370B firmware, and my A appears to now function as B in all important respects. It runs quite a bit faster than it originally did... and the Beagle Bone Black that has taken over the 6800's duties, isn't even breaking a sweat. At this point in time, the BBB single board computer is doing a software emulation of the original 6800 microprocessor, and is running a copy of the original firmware of either a 5370A, or B, model counter. The BBB is configured to step between the emulated code and the 5370's front panel, so you can add functions to the front panel at will. Currently, the front panel allows you to set things like RESET, halt, IP addresses, masks, etc... In the future, I can foresee replacing the 6800 firmware with custom C language routines and making the 5370 really sing! Your limit is pretty much your imagination. Oh, did I mention? It is on the ethernet with a full linux IP stack and firewall! Plug it into your router, and you can load, read, fiddle, and do just about anything far away from the actual 5370. I routinely send upgrades to my 5370 from clear across the building! -Chuck Harris (a very satisfied customer) John Seamons wrote: Please excuse this commercial announcement (although it is a near-zero profit endeavor). I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html ___ 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.
Re: [time-nuts] Different breed of time nuttery
On Sun, Feb 23, 2014 at 10:11 PM, Daniel Mendes dmend...@gmail.com wrote: This is a different breed of time nuttery than usual in this list but i think that at least some of you will enjoy it: http://www.behance.net/gallery/FLUX-1440/2420150 Found it at hack a day That is just ... cool. But I thought of a way to do the same thing without the rope and mechanical parts. I figured I can replace the ropes with rows of LEDs. Then I can turn on the LEDs to simulate the white rope and turn them off to simulate the black marks. Now you don't need the bearings and stepper motor. Pretty neat idea, huh! -- Brian Lloyd, WB6RQN/J79BPL 706 Flightline Drive Spring Branch, TX 78070 br...@lloyd.com +1.916.877.5067 ___ 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.
Re: [time-nuts] Different breed of time nuttery
So that is what string theory is all about! Who knew? Tom Holmes, N8ZM -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of gandal...@aol.com Sent: Monday, February 24, 2014 4:02 AM To: time-nuts@febo.com Subject: Re: [time-nuts] Different breed of time nuttery A triumph of matter over mind. In a message dated 24/02/2014 04:35:21 GMT Standard Time, dmend...@gmail.com writes: This is a different breed of time nuttery than usual in this list but i think that at least some of you will enjoy it: http://www.behance.net/gallery/FLUX-1440/2420150 Found it at hack a day Daniel ___ 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] A small piece on HP's hydrogen maser in 1968
http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/pdf/1968_09.pdf pages 8 9 -pete ___ 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.
Re: [time-nuts] Different breed of time nuttery
In message 530b5258.4060...@erols.com, Chuck Harris writes: Really impressive would be to have it create the patterns that make the numeric display out of only several feet of slowly moving rope connected as a loop... but that would require some thinking, rather than just a brute force approach. Nah... Just run it through a turing machine which counts the seconds/minutes whatever, and you're golden: http://aturingmachine.com/ -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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.
Re: [time-nuts] Different breed of time nuttery
On 2/24/14 6:08 AM, Chuck Harris wrote: Really impressive would be to have it create the patterns that make the numeric display out of only several feet of slowly moving rope connected as a loop... but that would require some thinking, rather than just a brute force approach. It's art, after all.. Maybe the huge pile of rope is part of the art? Like the threads of life that the 3 fates decide to cut. Or if the rope/thread gets tangled and jammed. And the fact that the machine cannot go backwards. There is a mention in the write up of the whole order out of chaos thing, too. The artist has some other interesting things.. the dot matrix graffiti printer, for instance. ___ 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.
Re: [time-nuts] 5370 processor boards available
Just a side note on running ethernet in your 'lab'. If your doing any low noise work you may want to pay a bit extra and get the shielded cables and make sure the RJ45 like sockets are of the shielded type. Example http://www.pchcables.com/cashstpnecaw.html (just a local supplier nothing else) -pete On Mon, Feb 24, 2014 at 6:28 AM, Chuck Harris cfhar...@erols.com wrote: As an early adopter/beta tester, I highly recommend this board! As yet, the board is only giving a glimpse of its potential, and yet it is completely replacing the original 6800 processor board. I am using a 5370A, with emulated 5370B firmware, and my A appears to now function as B in all important respects. It runs quite a bit faster than it originally did... and the Beagle Bone Black that has taken over the 6800's duties, isn't even breaking a sweat. At this point in time, the BBB single board computer is doing a software emulation of the original 6800 microprocessor, and is running a copy of the original firmware of either a 5370A, or B, model counter. The BBB is configured to step between the emulated code and the 5370's front panel, so you can add functions to the front panel at will. Currently, the front panel allows you to set things like RESET, halt, IP addresses, masks, etc... In the future, I can foresee replacing the 6800 firmware with custom C language routines and making the 5370 really sing! Your limit is pretty much your imagination. Oh, did I mention? It is on the ethernet with a full linux IP stack and firewall! Plug it into your router, and you can load, read, fiddle, and do just about anything far away from the actual 5370. I routinely send upgrades to my 5370 from clear across the building! -Chuck Harris (a very satisfied customer) John Seamons wrote: Please excuse this commercial announcement (although it is a near-zero profit endeavor). I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html ___ 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.
Re: [time-nuts] 5370 processor boards available
On 02/24/2014 08:04 AM, Pete Lancashire wrote: Just a side note on running ethernet in your 'lab'. If your doing any low noise work you may want to pay a bit extra and get the shielded cables and make sure the RJ45 like sockets are of the shielded type. Example http://www.pchcables.com/cashstpnecaw.html (just a local supplier nothing else) -pete Amen to that. And don't use any old coax for distributing 10 MHz if you wish to hear WWV. Use some multiple shielded coax with high quality connectors. -- Chuck Forsberg WA7KGX c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc The High Reliability Software 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 ___ 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.
Re: [time-nuts] Different breed of time nuttery
I think the realization that it takes thousands of feet of bit-serial crafted rope, is part of the art. Just IMHO. Something like the core rope fixed memory of the 60's, http://en.wikipedia.org/wiki/Core_rope_memory Many industrial machines internally still emulate the infinite paper tape loop concept from 50+ years ago when CNC was new. Young guys who have never programmed that way may not appreciate how programming with zero cleverness is in itself clever (making it far easier to predict performance etc. even though the performance is going to be low.) Tim N3QE On Mon, Feb 24, 2014 at 9:25 AM, Jim Lux jim...@earthlink.net wrote: On 2/23/14 8:11 PM, Daniel Mendes wrote: This is a different breed of time nuttery than usual in this list but i think that at least some of you will enjoy it: http://www.behance.net/gallery/FLUX-1440/2420150 Found it at hack a day An enormous amount of work went into painting the pattern on that rope too. A cleverer approach would have been if there were multiple shorter rope loops... Or geared ropes. ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
In message caa-f0u_jbz5dyb+hacmwfpkz6vhfo7arz+jpsmhrt9uss2n...@mail.gmail.com , Pete Lancashire writes: http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/pdf/1968_09.pdf pages 8 9 As far as I know, those satellites never made it to orbit ? Also: You can just see the writer twist his brain in order to get to that final punch-line :-) -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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] 10811-60111 needs repair
Is there anyone on the list who repairs these guys. The one I have is dead and I would like to get it going again. Please reply off list to N8ZM at MVUS.org Thanks. Tom Holmes, N8ZM ___ 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.
Re: [time-nuts] 5370 processor boards available
What has me also interested is I have a 5370A with its front panel pretty much destroyed. BB has recently released a 7 touch screen LCD w/daughter board for $119. I see a project for next winter on the horizon. -pete On Sun, Feb 23, 2014 at 7:56 PM, John Seamons j...@jks.com wrote: Please excuse this commercial announcement (although it is a near-zero profit endeavor). I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
I couldn't get the link to work (it just hangs). However, I vaguely remember when we were starting work on the 5071A that the reason why we used the model number 5071A instead of 5070A was that the latter number had been reserved for a hydrogen maser that was never sold. The person in charge of checking out model numbers used to complain about wasting numbers and was probably not pleased about this. Rick Karlquist N6RK On 2/24/2014 8:00 AM, Pete Lancasout hire wrote: http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/pdf/1968_09.pdf pages 8 9 -pete ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
Does this hang ? http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/ On Mon, Feb 24, 2014 at 8:50 AM, Richard (Rick) Karlquist rich...@karlquist.com wrote: I couldn't get the link to work (it just hangs). However, I vaguely remember when we were starting work on the 5071A that the reason why we used the model number 5071A instead of 5070A was that the latter number had been reserved for a hydrogen maser that was never sold. The person in charge of checking out model numbers used to complain about wasting numbers and was probably not pleased about this. Rick Karlquist N6RK On 2/24/2014 8:00 AM, Pete Lancasout hire wrote: http://www.hp.com/hpinfo/abouthp/histnfacts/ publications/measure/pdf/1968_09.pdf pages 8 9 -pete ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
HP was always a class act, proven by the classic Woody wagons used to transport gear in the photos. Thomas Knox To: time-nuts@febo.com; p...@petelancashire.com From: p...@phk.freebsd.dk Date: Mon, 24 Feb 2014 16:17:23 + Subject: Re: [time-nuts] A small piece on HP's hydrogen maser in 1968 In message caa-f0u_jbz5dyb+hacmwfpkz6vhfo7arz+jpsmhrt9uss2n...@mail.gmail.com , Pete Lancashire writes: http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/pdf/1968_09.pdf pages 8 9 As far as I know, those satellites never made it to orbit ? Also: You can just see the writer twist his brain in order to get to that final punch-line :-) -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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.
Re: [time-nuts] 5370 processor boards available
Hi, I browsed the page and the GitHub repository for a while, and read the readme and read-more documents, but I still don't know what it actually adds. Perhaps it would be a good idea to document this? Cheers, D. On Mon, Feb 24, 2014 at 9:38 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote: In message 45dfb8f9-3595-4a5d-8dcc-fd7317988...@jks.com, John Seamons writes: I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html As one of the Beta-testers I can highly recommend this, it really gives your HP5370 a kick into the next millenium. The potential for future improvements is also virtually unlimited: How about hooking up an LCD display and calculate and show allan variance in real time ? Thanks a LOT John! -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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.
Re: [time-nuts] 5370 processor boards available
Goto one of the places selling the BB Black and look up BB View. Not pushing this disty just one that has a decent image http://www.element14.com/community/docs/DOC-55844/l/element14-bb-view-lcd-cape-for-beaglebone-family-boards On Mon, Feb 24, 2014 at 1:50 AM, cheater00 . cheate...@gmail.com wrote: Hi, I browsed the page and the GitHub repository for a while, and read the readme and read-more documents, but I still don't know what it actually adds. Perhaps it would be a good idea to document this? Cheers, D. On Mon, Feb 24, 2014 at 9:38 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote: In message 45dfb8f9-3595-4a5d-8dcc-fd7317988...@jks.com, John Seamons writes: I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html As one of the Beta-testers I can highly recommend this, it really gives your HP5370 a kick into the next millenium. The potential for future improvements is also virtually unlimited: How about hooking up an LCD display and calculate and show allan variance in real time ? Thanks a LOT John! -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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] new gps satellite prn30 svn64
I discovered today with one of the online sat trackers (www.n2y0.com/?s=39533) that the new gps is in a 12719 mile orbit above earth. Putting it in a basic gps orbit all ready! There for I must conclude all the frequency drift I've been raving about is merely doppler shift! And not relitivistic gravitional effects! Anyway it looks as if the atomic clock on this new satellite are keeping excellant time. .037ns over 12hrs .011ns over 36hrs .018ns over 48hrs My estimation of the stability would be near 2e-16 ?? Someone else might want to pull out the calculator and check me on this. (to lazy to pull out my own calc. after all the cutting and pasting hehe) My first reception was at 23:32:22pdt gps time error freq-drift date time pdt 4.4716290517e-010,-1.1166002510e-014@ 02/21/2014 23:32:22 2.7434175598e-010,-5.1373205549e-014@ 02/22/2014 00:57:22 2.7264644019e-010,-5.1373205549e-014@ 02/22/2014 00:57:52 2.7202887741e-010,-5.2401886405e-014@ 02/22/2014 00:58:22 2.7003760573e-010,-5.2401886405e-014@ 02/22/2014 00:58:52 2.6877996045e-010,-5.2401886405e-014@ 02/22/2014 00:59:22 2.6416859445e-010,-5.2401886405e-014@ 02/22/2014 01:00:52 2.5693992947e-010,-5.3422655975e-014@ 02/22/2014 01:02:52 2.5624543494e-010,-5.3422655975e-014@ 02/22/2014 01:03:22 2.5421537401e-010,-5.3422655975e-014@ 02/22/2014 01:03:52 2.4365104104e-010,-5.4384875238e-014@ 02/22/2014 01:06:52 2.4196987886e-010,-5.5335398671e-014@ 02/22/2014 01:07:22 2.3208415713e-010,-5.6217685129e-014@ 02/22/2014 01:10:22 2.3084736806e-010,-5.6217685129e-014@ 02/22/2014 01:10:52 2.1308972996e-010,-5.7062414147e-014@ 02/22/2014 01:15:52 2.1229085616e-010,-5.7062414147e-014@ 02/22/2014 01:16:22 2.1024898532e-010,-5.7873397372e-014@ 02/22/2014 01:16:52 1.7422816710e-010,-6.0095673013e-014@ 02/22/2014 01:26:52 1.4985197051e-010,-6.1364392842e-014@ 02/22/2014 01:33:52 -8.2096225744e-011,-6.4458299267e-014 @ 02/22/2014 02:33:22 -8.7252889686e-011,-6.4458299267e-014 @ 02/22/2014 02:34:52 -8.8348680774e-011,-6.4458299267e-014 @ 02/22/2014 02:35:22 -1.0635115866e-010,-6.3795634899e-014 @ 02/22/2014 02:39:52 -1.0947714477e-010,-6.3795634899e-014 @ 02/22/2014 02:40:52 -1.2733387921e-010,-6.2957112939e-014 @ 02/22/2014 02:45:22 4.1019065602e-010,-2.6931360042e-014 @ 02/22/2014 12:11:52 (beggining reception for this sat pass) omitted about 20 readings here (to lazy to cut an past) 2.8165598456e-010,-5.0887679487e-014 @ 02/22/2014 13:04:22 (ending reception for this sat pass) 4.3603246331e-010,-1.6790847616e-01402/23/2014 12:07:52 4.3593171822e-010,-1.6790847616e-01402/23/2014 12:08:22 4.3174004663e-010,-1.8414870662e-01402/23/2014 12:11:52 4.3034051646e-010,-1.8414870662e-01402/23/2014 12:13:22 4.2869713019e-010,-2.0026462652e-01402/23/2014 12:14:22 4.1581271863e-010,-2.4775827210e-01402/23/2014 12:23:52 4.1281643054e-010,-2.6318389403e-01402/23/2014 12:25:52 4.0926344797e-010,-2.6318389403e-01402/23/2014 12:27:52 4.0478960091e-010,-2.7851801947e-01402/23/2014 12:30:52 3.9935083907e-010,-2.9374723140e-01402/23/2014 12:33:52 3.9419403312e-010,-3.0861188035e-01402/23/2014 12:36:22 3.7487843100e-010,-3.5255679669e-01402/23/2014 12:45:52 3.7015489306e-010,-3.6675906588e-01402/23/2014 12:47:52 3.6828442183e-010,-3.6675906588e-01402/23/2014 12:48:52 3.6575238324e-010,-3.8055713095e-01402/23/2014 12:49:52 3.6331681760e-010,-3.8055713095e-01402/23/2014 12:50:52 3.6305042761e-010,-3.8055713095e-01402/23/2014 12:51:22 3.4513124556e-010,-4.0722789453e-01402/23/2014 12:58:22 3.3345738644e-010 -4.3288038898e-01402/23/2014 13:02:52 3.3311108214e-010,-4.3288038898e-01402/23/2014 13:03:22 3.0597744159e-010,-4.6912604687e-01402/23/2014 13:12:52 2.9199553517e-010,-4.9187274398e-01402/23/2014 13:17:52 2.8347651083e-010,-5.0266031843e-01402/23/2014 13:20:52 4.2985792512e-010,-2.453659e-01402/24/2014 00:22:21 3.9619769439e-010,-3.0869905699e-01402/24/2014 00:43:51 2.7843215833e-010,-5.0366500114e-01402/24/2014 01:30:51 2.6696754744e-010,-5.1414151121e-01402/24/2014 01:34:51 2.6696754744e-010,-5.1414151121e-01402/24/2014 01:34:51 2.5655241979e-010,-5.3399281253e-01402/24/2014 01:37:51 2.3977925547e-010,-5.4335815090e-01402/24/2014 01:42:51 1.5593235232e-010,-6.0487530783e-01402/24/2014 02:06:51 1.3662021621e-010,-6.1631397956e-01402/24/2014 02:12:21 9.1330613763e-011,-6.3442815183e-01402/24/2014 02:24:21 7.4941924493e-011,-6.3779697127e-01402/24/2014 02:28:51 6.8642013947e-011,-6.4078001802e-01402/24/2014 02:30:21 5.9060884222e-011,-6.4327788430e-01402/24/2014 02:32:51 -6.6260772297e-011,-6.4416503273e-014 02/24/2014 03:04:51 -7.7866533308e-011,-6.4184273944e-014 02/24/2014 03:07:51 -8.4434374222e-011,-6.3902103552e-014 02/24/2014 03:09:51 -8.7629479398e-011,-6.3902103552e-014 02/24/2014 03:10:21
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
On 2/24/2014 8:54 AM, Pete Lancashire wrote: Does this hang ? http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/ That works, but when i click on the actual link to the actual, my browser still hangs. Rick ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
Still doesn't work for me. On 2/24/2014 8:57 AM, Had wrote: http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/pdf/1968_09 .pdf Rick, I got the above to work with no problem. The original link was busted. Had K7MLR ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
Worked fine for me earlier. May want to try to dump your cache and cookies. That seems to help when things get silly. All of that said and back to the numbers. That would have been way back in 1968 and there would have been artificial gods that controlled the numbers. These odd folks still exist or are the sons and daughters of the number gods. But today they use excel and color thing red yellow and green and haven't figured out that you can expand the cell to hold more numbers. Regards Paul. On Mon, Feb 24, 2014 at 12:34 PM, Richard (Rick) Karlquist rich...@karlquist.com wrote: Still doesn't work for me. On 2/24/2014 8:57 AM, Had wrote: http://www.hp.com/hpinfo/abouthp/histnfacts/ publications/measure/pdf/1968_09 .pdf Rick, I got the above to work with no problem. The original link was busted. Had K7MLR ___ 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.
Re: [time-nuts] 10811-60111 needs repair
On 2/24/2014 8:26 AM, Tom Holmes wrote: Is there anyone on the list who repairs these guys. The one I have is dead and I would like to get it going again. Tom, the most common fault with these is the thermal fuse going open circuit. If that's your problem then fixing it yourself might be easier than sending it out... I had one with a dead thermistor; that was a little bit trickier. A lot in the archives on these, I'm sure. Dan ac6ao ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
When there are extraneous characters and a line feed added by some word wrapping I use this method: 1) Forward the email 2) delete the extra characters, getting the proper URL back 3) Copy the URL to the clipboard 4) Open browser and paste URL in After that, trash the forward email. The link below worked fine on a Chrome browser after I did the above. Bob LaJeunesse From: Richard (Rick) Karlquist rich...@karlquist.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Monday, February 24, 2014 12:34 PM Subject: Re: [time-nuts] A small piece on HP's hydrogen maser in 1968 Still doesn't work for me. On 2/24/2014 8:57 AM, Had wrote: http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/pdf/1968_09 .pdf ___ 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.
Re: [time-nuts] 5370 processor boards available
D I can give you some insights here. Others will be more effective. We all agree that the 5370 frequency counters are great devices from 1980. Right there is the first issue. The old micros are getting old and failing. I have lost both 6800s and eproms. Thank heavens stuff is still available. But this board replaces those items completely. Welcome to 2014. Now we just have to worry about big fat capacitors. In addition it gives you remote control other then GPIB. We all love GPIB, but us lazy types like Ethernet better. Cables are easier to manage. Finally the crazy thing is it gives you web services. Wow for a 1980s box. All while leaving the front panel operation intact for simple quick applications. The only thing that can be annoying is there is a shut down procedure for the unit now. It used to be power off. All of the above for $90. Hope that helps you. Regards Paul WB8TSL On Mon, Feb 24, 2014 at 12:16 PM, Pete Lancashire p...@petelancashire.comwrote: Goto one of the places selling the BB Black and look up BB View. Not pushing this disty just one that has a decent image http://www.element14.com/community/docs/DOC-55844/l/element14-bb-view-lcd-cape-for-beaglebone-family-boards On Mon, Feb 24, 2014 at 1:50 AM, cheater00 . cheate...@gmail.com wrote: Hi, I browsed the page and the GitHub repository for a while, and read the readme and read-more documents, but I still don't know what it actually adds. Perhaps it would be a good idea to document this? Cheers, D. On Mon, Feb 24, 2014 at 9:38 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote: In message 45dfb8f9-3595-4a5d-8dcc-fd7317988...@jks.com, John Seamons writes: I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html As one of the Beta-testers I can highly recommend this, it really gives your HP5370 a kick into the next millenium. The potential for future improvements is also virtually unlimited: How about hooking up an LCD display and calculate and show allan variance in real time ? Thanks a LOT John! -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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.
Re: [time-nuts] 10811-60111 needs repair
dan...@verizon.net said: I had one with a dead thermistor; that was a little bit trickier. A lot in the archives on these, I'm sure. Good pictures and directions here: http://www.realhamradio.com/GPS-oven-journey.htm -- These are my opinions. I hate spam. ___ 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.
Re: [time-nuts] FE-5680A sweep range setting
A couple further observations, to make life easier when adjusting C245 you can unplug the top card and move it aside, the CVXO will lock without it, but you will not have the 10MHz to monitor, but you can monitor the CVXO output instead. On the 6 pin connector you will see a 1 near the outer long edge of the second card, the CVXO output appears on pin 5 of this connector and on mine, it locks at 50.25505808 MHz according to my 5335A. I also noted that when the 5680A is well warmed up it sweeps through a much smaller range. It would appear that the one I had trouble getting to lock has some secondary issue. I can get it to lock playing with C245 but the when I power off and back on it seems the CVXO does not start properly measured frequency is low and outputs a very weak signal, injecting some capacitance by touching a metal screwdriver to the end of one capacitor gets it going and once that happens it will lock pretty quickly more investigation needed. Paul. On 2/23/14 6:01 PM, Simon Lyons wrote: OK ... I have C245 on the middle board, same as you. Tweaking it and ... Hmmm, it does affect the range (twitchy is an understatement!) but still no lock. To be continued Now by the 'frequency control board' do you mean the board that overlaps the top of the D-Sub connector? I have been at a loss to understand this section. There is all sorts of silicon on it but no inputs of any kind. Just a 5V supply and a single analog output of 1.99V on the orange wire. I'm baffled, so if you know what this board is doing, please tell! ___ 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.
Re: [time-nuts] 5370 processor boards available
In message cad2jfahdzgnfwnzkyo7sfj4pqvnussy8ns9u3sdjyf+vymt...@mail.gmail.com , paul swed writes: The only thing that can be annoying is there is a shut down procedure for the unit now. It used to be power off. That should be fixable, given enough Linux-clue. (I could trivially do it on FreeBSD, but don't know the incantations for Linux) -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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.
Re: [time-nuts] 5370 processor boards available
Thanks for the info. It could still be power off... just add a large capacitor as voltage backup and make the unit sense when power is off. It should be able to shut down quickly enough. That's how it works most of the time. Alternatively add some 1.5v batteries and a charger. That should never run out. Running a PC without backup power is asking for trouble. A few 1.5v batteries and a charger and buck-boost cost only 10 bucks. D. On 24 Feb 2014 18:57, paul swed paulsw...@gmail.com wrote: D I can give you some insights here. Others will be more effective. We all agree that the 5370 frequency counters are great devices from 1980. Right there is the first issue. The old micros are getting old and failing. I have lost both 6800s and eproms. Thank heavens stuff is still available. But this board replaces those items completely. Welcome to 2014. Now we just have to worry about big fat capacitors. In addition it gives you remote control other then GPIB. We all love GPIB, but us lazy types like Ethernet better. Cables are easier to manage. Finally the crazy thing is it gives you web services. Wow for a 1980s box. All while leaving the front panel operation intact for simple quick applications. The only thing that can be annoying is there is a shut down procedure for the unit now. It used to be power off. All of the above for $90. Hope that helps you. Regards Paul WB8TSL On Mon, Feb 24, 2014 at 12:16 PM, Pete Lancashire p...@petelancashire.comwrote: Goto one of the places selling the BB Black and look up BB View. Not pushing this disty just one that has a decent image http://www.element14.com/community/docs/DOC-55844/l/element14-bb-view-lcd-cape-for-beaglebone-family-boards On Mon, Feb 24, 2014 at 1:50 AM, cheater00 . cheate...@gmail.com wrote: Hi, I browsed the page and the GitHub repository for a while, and read the readme and read-more documents, but I still don't know what it actually adds. Perhaps it would be a good idea to document this? Cheers, D. On Mon, Feb 24, 2014 at 9:38 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote: In message 45dfb8f9-3595-4a5d-8dcc-fd7317988...@jks.com, John Seamons writes: I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html As one of the Beta-testers I can highly recommend this, it really gives your HP5370 a kick into the next millenium. The potential for future improvements is also virtually unlimited: How about hooking up an LCD display and calculate and show allan variance in real time ? Thanks a LOT John! -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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. ___ 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.
Re: [time-nuts] 5370 processor boards available
Going to leave the battery comment alone. Most people with HP and other gear of age have experienced the dreaded leaking batteries from really poorly designed charging circuits. Even HP did the resistor diode thing. Regards Paul. On Mon, Feb 24, 2014 at 1:24 PM, cheater00 . cheate...@gmail.com wrote: Thanks for the info. It could still be power off... just add a large capacitor as voltage backup and make the unit sense when power is off. It should be able to shut down quickly enough. That's how it works most of the time. Alternatively add some 1.5v batteries and a charger. That should never run out. Running a PC without backup power is asking for trouble. A few 1.5v batteries and a charger and buck-boost cost only 10 bucks. D. On 24 Feb 2014 18:57, paul swed paulsw...@gmail.com wrote: D I can give you some insights here. Others will be more effective. We all agree that the 5370 frequency counters are great devices from 1980. Right there is the first issue. The old micros are getting old and failing. I have lost both 6800s and eproms. Thank heavens stuff is still available. But this board replaces those items completely. Welcome to 2014. Now we just have to worry about big fat capacitors. In addition it gives you remote control other then GPIB. We all love GPIB, but us lazy types like Ethernet better. Cables are easier to manage. Finally the crazy thing is it gives you web services. Wow for a 1980s box. All while leaving the front panel operation intact for simple quick applications. The only thing that can be annoying is there is a shut down procedure for the unit now. It used to be power off. All of the above for $90. Hope that helps you. Regards Paul WB8TSL On Mon, Feb 24, 2014 at 12:16 PM, Pete Lancashire p...@petelancashire.comwrote: Goto one of the places selling the BB Black and look up BB View. Not pushing this disty just one that has a decent image http://www.element14.com/community/docs/DOC-55844/l/element14-bb-view-lcd-cape-for-beaglebone-family-boards On Mon, Feb 24, 2014 at 1:50 AM, cheater00 . cheate...@gmail.com wrote: Hi, I browsed the page and the GitHub repository for a while, and read the readme and read-more documents, but I still don't know what it actually adds. Perhaps it would be a good idea to document this? Cheers, D. On Mon, Feb 24, 2014 at 9:38 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote: In message 45dfb8f9-3595-4a5d-8dcc-fd7317988...@jks.com, John Seamons writes: I am now accepting general orders for the hp 5370 processor replacement board. More info and ordering information at: www.jks.com/5370/5370.html As one of the Beta-testers I can highly recommend this, it really gives your HP5370 a kick into the next millenium. The potential for future improvements is also virtually unlimited: How about hooking up an LCD display and calculate and show allan variance in real time ? Thanks a LOT John! -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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. ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
The.pdf got caught up in a linefeed/carriagereturn -Original Message- From: Richard (Rick) Karlquist Sent: Monday, February 24, 2014 11:34 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] A small piece on HP's hydrogen maser in 1968 Still doesn't work for me. On 2/24/2014 8:57 AM, Had wrote: http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/pdf/1968_09 .pdf Rick, I got the above to work with no problem. The original link was busted. Had K7MLR ___ 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.
Re: [time-nuts] 10811-60111 needs repair
Hi Dan ... Thanks for that info; I wish that was all it it but I have bypassed the tiny(amp-wise) fuse and that did not help anything so i have concluded that there is more wrong, like maybe the oscillator circuit has a problem. Part of reason is that my time is limited us I have poked into it far enough to see that further damage caused by me is more likely than repair. As Dirty Harry Callahan once said in a movie, a man's got to know his limitations. Thanks for the suggestion. From Tom Holmes On Feb 24, 2014, at 11:52 AM, Dan Rae dan...@verizon.net wrote: On 2/24/2014 8:26 AM, Tom Holmes wrote: Is there anyone on the list who repairs these guys. The one I have is dead and I would like to get it going again. Tom, the most common fault with these is the thermal fuse going open circuit. If that's your problem then fixing it yourself might be easier than sending it out... I had one with a dead thermistor; that was a little bit trickier. A lot in the archives on these, I'm sure. Dan ac6ao ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
On 2/24/2014 1:59 PM, dlewis wrote: The.pdf got caught up in a linefeed/carriagereturn Wouldn't that problem result in a file not found error rather than just hanging? I eventually got the link to work from Internet Explorer, which took 5 minutes to download it. It never worked from Firefox. Rick ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/pdf/1968_09.pdf This broken link business is very common in some browsers (in Windows). It's because there's an underline in the original URL. When the browser sees a link it underlines it in blue, which converts the underline into a Rich Text or HTML graphics character. The simple cure is to cut and paste the URL into a text file with notepad. This gets rid of the fancy format characters. An even better way is to switch off HTML and RTF if you can. Email was meant to be text. . Zim ___ 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.
Re: [time-nuts] 5370 processor boards available
I may have a solution for the power-off problem that doesn't involve batteries or supercaps. It has the added advantage of providing instant-on. I need to run some tests.. ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
On 2/24/14 8:17 AM, Poul-Henning Kamp wrote: In message caa-f0u_jbz5dyb+hacmwfpkz6vhfo7arz+jpsmhrt9uss2n...@mail.gmail.com , Pete Lancashire writes: http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/pdf/1968_09.pdf pages 8 9 As far as I know, those satellites never made it to orbit ? Wasn't that Gravity Probe B.. which finally launched in 2004, and had equivocal results. Also: You can just see the writer twist his brain in order to get to that final punch-line :-) ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
In the back of my head, I beleive that project red shift did fly, but they dumped the hydrogen masers to use brand new lighter weight and much smaller rubidiums. GET FREE SMILEYS FOR YOUR IM EMAIL - Learn more at http://www.inbox.com/smileys Works with AIM®, MSN® Messenger, Yahoo!® Messenger, ICQ®, Google Talk™ and most webmails ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968 - download
That was my experience with XP and IE 8. Downloading began at once and the byte counter rolled on up to the target in a minute or so, but I couldn't read the document. My network indicator stayed lit, and Properties showed message flow, so I did something else and came back to find it done. Has happened once or twice before. Great articles in the result, though. Bill Hawkins -Original Message- From: Richard (Rick) Karlquist Sent: Monday, February 24, 2014 5:57 PM I eventually got the link to work from Internet Explorer, which took 5 minutes to download it. It never worked from Firefox. ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968 - download
Great articles in the result, though. I didn't know the whole history of this, even being in frequency standards at HP for years. I see there is a picture of Lou Mueller. He was extremely smart guy to work with. I learned an immense amount of physics from him. Rick Karlquist N6RK ___ 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.
Re: [time-nuts] A small piece on HP's hydrogen maser in 1968
[Jim Lux] Wasn't that Gravity Probe B.. which finally launched in 2004, and had equivocal results. No, GPB was the gyro-experiment, it tested another part of GR than red shift was supposed to. [Tony Greene] In the back of my head, I beleive that project red shift did fly, but they dumped the hydrogen masers to use brand new lighter weight and much smaller rubidiums. I've found no trace of it. Are you sure you are not confusing it with the pathfinders for NavStar ? -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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.