Re: [time-nuts] Have done some more cutting on the Cs beam tube

2017-02-19 Thread Bill Dailey
Is it possible that the higher temp keeps the tube "cooked off?" Bill Dailey > On Feb 19, 2017, at 12:54 PM, <cdel...@juno.com> <cdel...@juno.com> wrote: > > Hi, > > The tiny coil inside the beam path is the low frequency coil used for DC >

Re: [time-nuts] more teensies

2015-09-25 Thread Bill Dailey
It would be neat to drive one off a disciplined 16MHz synthesizer and compare. Bill Dailey > On Sep 25, 2015, at 1:40 PM, Jim Lux <jim...@earthlink.net> wrote: > > I ran 5 teensys in parallel, driven from the same Rb source for an hour.. > They track reasonably well.

Re: [time-nuts] beaglebones, time, web services

2015-07-05 Thread Bill Dailey
These are pricey but offer 5900 steps over 120 degrees. 0.02 degree per step. At least you could try a couple. If you have many of them it would get expensive quickly. http://www.horizonhobby.com/ds8231-ultra-precision-servo-jrps8231 Sent from mobile On Jul 5, 2015, at 7:46 AM, Jim Lux

Re: [time-nuts] beaglebones, time, web services

2015-07-04 Thread Bill Dailey
Pysolar Sent from mobile On Jul 4, 2015, at 8:13 AM, Jim Lux jim...@earthlink.net wrote: I've got a project I'm working on to make a sophisticated sundial with moving mirrors. I've got a batch of Arduinos that move the mirrors to the appropriate places, given the current sun angle,

Re: [time-nuts] Jackson labs fury gpsdo with docxo for sale

2015-06-26 Thread Bill Dailey
The double oven? Sent from mobile On Jun 25, 2015, at 4:25 PM, Rhys D heyr...@gmail.com wrote: According to the brochure, they are only $750 new. Or am I missing something here? R On 26 June 2015 at 03:30, Mark Spencer m...@alignedsolutions.com wrote: Hi I'm wondering if there is

Re: [time-nuts] 10MHz LTE-Lite - PPS accuracy?

2014-12-08 Thread Bill Dailey
Or use 1ns per foot of antenna cable. That will get you closer. Sent from mobile On Dec 8, 2014, at 8:16 AM, David J Taylor david-tay...@blueyonder.co.uk wrote: Hi On *most* GPSDO’s, the simple answer is “there is a cable delay adjustment to align it”. Without some sort of reliable

Re: [time-nuts] eBay seller has Z3801A upgraded to 58503A

2014-11-27 Thread Bill Dailey
Get the Fury. Plug and play. Sent from mobile On Nov 27, 2014, at 4:55 PM, Dr. David Kirkby (Kirkby Microwave Ltd) drkir...@kirkbymicrowave.co.uk wrote: There's a seller on eBay selling what he says is Z3801A upgraded to 58503A. One or two things have made me a bit suspicious of that

Re: [time-nuts] Hydrogen Maser KIT! Update #1

2014-11-03 Thread Bill Dailey
Good god, be core full with that. Did you find any references to sputtering the coating. I would think this would give you a more even and more adhesive coating. Some chemical engineering labs at universities do that and would probably coat it for free. I know Dr. Viljoen at

Re: [time-nuts] If any of your USB devices have stopped working lately...

2014-10-24 Thread Bill Dailey
actually. I buy products that I believe are legit no way to know just as if the cpu in my acer or emachines not legal. Heck I have no idea. Regards Paul WB8TSL On Thu, Oct 23, 2014 at 10:02 PM, Bill Dailey docdai...@gmail.com wrote: Well..if they didn't properly license the technology

Re: [time-nuts] If any of your USB devices have stopped working lately...

2014-10-23 Thread Bill Dailey
Well..if they didn't properly license the technology... They should be disabled. Sent from my iPad On Oct 23, 2014, at 8:45 PM, Mark Sims hol...@hotmail.com wrote: Happened to a friend of mine. All his Arduino stuff died. This could be the reason:

Re: [time-nuts] LTE-Lite module

2014-10-18 Thread Bill Dailey
the instructions there. -- Doc Bill Dailey KXØO ___ 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] Any simple way to get 200 MHz from 10 MHz?

2014-09-28 Thread Bill Dailey
I use this for my qs1r (125MHz) and to discipline a sound card (24.576MHz). http://www.valontechnology.com/5007%20synthesizer.html http://www.valontechnology.com/3008%20divider.html I actually have one 5007 sandwiched between two 3008's within a Hammond enclosure I built. Has voltage in,

Re: [time-nuts] Update on my Arduino GPSDO / NTP server - going atomic

2014-09-10 Thread Bill Dailey
approach, and when I get my new board (Taijiuino, a Due-alike board that routes the SAM3X's Ethernet MAC pins) I'm going to keep going with that, but this is pretty good performance for Linux, I'd say. Andrew On Sat, Sep 6, 2014 at 12:06 PM, Bill Dailey docdai...@gmail.com wrote: Will add

Re: [time-nuts] Update on my Arduino GPSDO / NTP server - going atomic

2014-09-10 Thread Bill Dailey
to keep going with that, but this is pretty good performance for Linux, I'd say. Andrew On Sat, Sep 6, 2014 at 12:06 PM, Bill Dailey docdai...@gmail.com wrote: Will add it to my list of projects. Will touch bases when I get close. Sent from my iPad On Sep 6, 2014, at 10:18 AM, Andrew

Re: [time-nuts] Update on my Arduino GPSDO / NTP server - going atomic

2014-09-06 Thread Bill Dailey
, since the i.MX is clocked quite a bit faster and has its Ethernet MAC on-chip :) Andrew On Sat, Sep 6, 2014 at 12:08 AM, Bill Dailey docdai...@gmail.com wrote: I was wondering if a board like the udoo would help your ntp performance. I have one and would be willing to try this configuration

Re: [time-nuts] Update on my Arduino GPSDO / NTP server - going atomic

2014-09-05 Thread Bill Dailey
I was wondering if a board like the udoo would help your ntp performance. I have one and would be willing to try this configuration. Have you posted your source? I think I got confused as to who was doing this. I don't have a rubidium but I have a 6T on a breakout and a couple of very good

Re: [time-nuts] How are iPhones' clocks set under LTE?

2014-08-04 Thread Bill Dailey
For informational purposes I will show what I use to compare with my stock Iphone. It is an app called emerald time. Screenshot at: https://www.dropbox.com/s/zt6tjrsylrrtrc3/2014-08-04%2008.06.02.png You can set it up to sync with you own ntp server. I think. You can just spot check it.

Re: [time-nuts] How are iPhones' clocks set under LTE?

2014-08-04 Thread Bill Dailey
://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Doc Bill Dailey KXØO ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow

Re: [time-nuts] How are iPhones' clocks set under LTE?

2014-08-04 Thread Bill Dailey
for the app developer? http://www.emeraldsequoia.com/ On Mon, Aug 4, 2014 at 8:01 PM, Bill Dailey docdai...@gmail.com wrote: I put my own ntp server in there and was frequently disappinted This is an acknowledged design flaw on their part. It will only choose a user provided clock

Re: [time-nuts] temperature sensor

2014-07-22 Thread Bill Dailey
In a container, as steam condenses the pressure will drop. The steam will stay saturated. This is as long as the container contains steam only. Eventually, as the steam cools and condenses you will be left with a vacuum contains only minimal water vapor. Sent from mobile On Jul 22, 2014,

Re: [time-nuts] temperature sensor

2014-07-21 Thread Bill Dailey
Ice water and boiling water coupled with altitude will give you two points. Sent from mobile On Jul 21, 2014, at 10:12 AM, Attila Kinali att...@kinali.ch wrote: On Mon, 21 Jul 2014 04:39:51 -0700 Alexander Pummer alex...@ieee.org wrote: NTC are not that very stable, they are amorphous

Re: [time-nuts] temperature sensor

2014-07-21 Thread Bill Dailey
You don't use ice as a reference. With ice water, the same principles apply that apply to boiling water. This is why these are convenient calibration check points. Sent from mobile On Jul 21, 2014, at 3:51 PM, jim s jwsm...@jwsss.com wrote: On 7/21/2014 11:36 AM, Hal Murray wrote:

Re: [time-nuts] BeagleBone Black NTP server

2014-05-09 Thread Bill Dailey
I have the adafruit and a ublox-6T each mated to raspberry pi's. With NTP they are essentially indistinguishable. I have something other than NTP in mind for the 6Tpi. Sent from my iPad On May 9, 2014, at 9:32 PM, Brian Lloyd br...@lloyd.com wrote: On Fri, May 9, 2014 at 8:49 PM, Chris

Re: [time-nuts] Rb vs.Crystal OCXO

2014-04-27 Thread Bill Dailey
I unplug the antenna from my fury boards. I hope this is an effective alternative. Sent from mobile On Apr 27, 2014, at 9:02 AM, Tom Van Baak t...@leapsecond.com wrote: The Pendulum GPS-88 and GPS-89 have a button on the front you push when you want to force it into hold-over to do your

Re: [time-nuts] Measuring 1 PPS with an HP 5335A

2014-02-16 Thread Bill Dailey
No idea. That's what's sad. They all blend together. Sent from mobile On Feb 16, 2014, at 6:17 PM, Jimmy D. Burrell jimmydb...@gmail.com wrote: Bingo! It's working now!! Thanks to everyone on the thread. Paul, I have to give chops to Bob on this one, even though my experience is the

Re: [time-nuts] Measuring 1 PPS with an HP 5335A

2014-02-16 Thread Bill Dailey
Disregard that. Meant for someone else. I apologize. Sent from mobile On Feb 16, 2014, at 7:33 PM, Bill Dailey docdai...@gmail.com wrote: No idea. That's what's sad. They all blend together. Sent from mobile On Feb 16, 2014, at 6:17 PM, Jimmy D. Burrell jimmydb...@gmail.com wrote

Re: [time-nuts] Line Frequency

2014-02-09 Thread Bill Dailey
The PicPET is what I use. Input is from a 5v ac transformer. Seems simple to me. I bought a handful of these. Love em. http://www.leapsecond.com/pic/picpet.htm Doc Sent from mobile On Feb 9, 2014, at 7:53 AM, M. Simon msimon6...@yahoo.com wrote: This probably came up during the recent

Re: [time-nuts] Local Solar Time Clock

2014-01-18 Thread Bill Dailey
http://www.precisionsundials.com The sawyer looks like it fits the bill. $8,000 Sent from mobile On Jan 18, 2014, at 4:25 PM, P Nielsen pniel...@tpg.com.au wrote: I am looking for a physical clock (not software) that will indicate local solar time. IOW when the sun is at its highest

Re: [time-nuts] Is this measurement for real?

2013-12-08 Thread Bill Dailey
Sounds about right. Sent from mobile On Dec 7, 2013, at 2:24 PM, quartz55 quart...@hughes.net wrote: I've been testing my soundcard measurement capability with Speclab, so I hooked my LPRO Rb to lock my Moto Service Monitor, fed the 1K audio out into the sound card and I measured the

Re: [time-nuts] Man killed in quartz crystal accident

2013-11-26 Thread Bill Dailey
So throw caution to the wind because other things kill people? 100% of people die from something. So we shouldn't try to keep from killing bystanders because they are going to die anyway? Sounds a bit sociopathic to me. Doc Sent from mobile On Nov 26, 2013, at 7:34 AM, J. Forster

Re: [time-nuts] Man killed in quartz crystal accident

2013-11-24 Thread Bill Dailey
-- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Doc Bill Dailey KXØO ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com

Re: [time-nuts] Man killed in quartz crystal accident

2013-11-24 Thread Bill Dailey
. There used to be a few more around here, since shut down. Bob On Nov 24, 2013, at 8:10 PM, Bill Dailey docdai...@gmail.com wrote: I am a chemical engineer and am quite frankly appalled that this kind of high pressure process would be done in such proximity to innocents. On Sun, Nov 24

Re: [time-nuts] Mains frequency

2013-11-18 Thread Bill Dailey
-- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Doc Bill Dailey KXØO ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] Mains frequency

2013-11-18 Thread Bill Dailey
noise. The slope of the ADEV curve can help you determine what sort of noise it is. The slope(s) on an modified ADEV curve can do that slightly better. Bob On Nov 18, 2013, at 8:03 PM, Bill Dailey docdai...@gmail.com wrote: tom, nice plots. how do you figure out what the contribution

Re: [time-nuts] Mains frequency

2013-11-18 Thread Bill Dailey
hours on that particular project with other list members involved as well. As always we kept it off list to keep from offending those who place a high value on their bandwidth. Bob On Nov 18, 2013, at 9:11 PM, Bill Dailey docdai...@gmail.com wrote: I meant ideal at the noise floor of the picPET

Re: [time-nuts] Mains frequency (Tom Van Baak)

2013-11-17 Thread Bill Dailey
___ 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. -- Doc Bill Dailey KXØO ___ time-nuts mailing list -- time-nuts

Re: [time-nuts] Mains frequency

2013-11-16 Thread Bill Dailey
at 6:51 PM, Bill Dailey docdai...@gmail.com wrote: 110vac--5vac--100ohm--picpet event--- python average 60 cycles-- log freq every second. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] Mains frequency

2013-11-16 Thread Bill Dailey
rough comparison... I didnt have my interval right for this set. https://www.dropbox.com/s/1gi5tbf96yop5hz/stonercompare.JPG On Sat, Nov 16, 2013 at 3:02 AM, Bill Dailey docdai...@gmail.com wrote: Understood.. I have it every 6 cycles now to sync up with his synchrophaser. I wrote

Re: [time-nuts] Mains frequency

2013-11-16 Thread Bill Dailey
at 1:55 AM, Kevin M. Rosenberg ke...@rosenberg.netwrote: Not on the eastern grid, but I had hook my picpet ac mains logger back to the southwest grid if that would be of any help. On Nov 15, 2013, at 7:51 PM, Bill Dailey docdai...@gmail.com wrote: I have my picpet faithfully measuring grid

Re: [time-nuts] Mains frequency

2013-11-16 Thread Bill Dailey
My purpose is to do it with a picpet. That's it. So, that eliminates a bunch of the options. I can decouple the measurements from the pc clock that way. Doc Sent from mobile On Nov 16, 2013, at 11:26 AM, Chris Albertson albertson.ch...@gmail.com wrote: The signal is 120 volts. You

Re: [time-nuts] Mains frequency

2013-11-16 Thread Bill Dailey
the time. In fact that's one of the reasons I designed it. If you're having any trouble contact me by email. /tvb (i5s) On Nov 16, 2013, at 11:23 AM, Bill Dailey docdai...@gmail.com wrote: My purpose is to do it with a picpet. That's it. So, that eliminates a bunch of the options. I can

Re: [time-nuts] Mains frequency

2013-11-16 Thread Bill Dailey
be used, what is the question driving the measurement? On Sat, Nov 16, 2013 at 11:23 AM, Bill Dailey docdai...@gmail.com wrote: My purpose is to do it with a picpet. That's it. So, that eliminates a bunch of the options. I can decouple the measurements from the pc clock that way. Doc

Re: [time-nuts] Mains frequency

2013-11-16 Thread Bill Dailey
Does an ac transformer hurt me? I was looking for that dang megohm page when I started this. Couldn't find it so I used a transformer. Doc Sent from my iPad On Nov 16, 2013, at 9:17 PM, Tom Van Baak t...@leapsecond.com wrote: Again, why are you measuring the AC line? I'd think maybe to

Re: [time-nuts] Mains frequency

2013-11-16 Thread Bill Dailey
This resonates with me somewhat since I used to run nuclear power plants and operate the actual turbines. It does seem that the time interval measurements have much more jitter than I would expect. I suspect the thousands of turbines phase locked may introduce all kinds of very subtle

[time-nuts] Mains frequency

2013-11-15 Thread Bill Dailey
I have my picpet faithfully measuring grid frequency and was wondering if anyone else if the eastern grid has a live measure to compare to? 110vac--5vac--100ohm--picpet event--- python average 60 cycles-- log freq every second. Sent from mobile ___

[time-nuts] Clock block

2013-11-05 Thread Bill Dailey
Does anyone have any spares? Or bom with pcb files so I can order and build? Doc Sent from my iPad ___ 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

Re: [time-nuts] Computing GPS Distance Error in Time

2013-11-04 Thread Bill Dailey
The pps on that unit is good. Compares favorably to the ublox6T. I can't say how favorably. I am working on quantifying its pps as compared to my 2 fury units and the ublox 6T. Awaiting a 8 antenna splitter, and dso. Have another trick up my sleeve but need a Linux kernel hacker. I

Re: [time-nuts] Computing GPS Distance Error in Time

2013-11-04 Thread Bill Dailey
for timing applications. I'll try to get that done early after lunch today. Bob From: Bill Dailey docdai...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Monday, November 4, 2013 11:30 AM Subject: Re: [time

Re: [time-nuts] time-nuts Digest, Vol 111, Issue 70

2013-10-26 Thread Bill Dailey
The fury already has a fat pps correct? Sent from mobile On Oct 26, 2013, at 7:31 PM, Frank Hughes hp_cisco...@yahoo.com wrote: Discretion being the better part of valor, and I need plug play for this piece, in order to save time for other things that need attention, so I ordered :

Re: [time-nuts] NTP REFCLOCK for a Jackson Fury??

2013-10-17 Thread Bill Dailey
/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. -- Doc Bill Dailey KXØO

Re: [time-nuts] NTP REFCLOCK for a Jackson Fury??

2013-10-17 Thread Bill Dailey
hpgps driver fudge flag4 to 1 and I bet it will stop working well. This flag logs the system:print output. Scott On 10/17/2013 10:24 AM, Bill Dailey wrote: Interesting.. I see something completely different with my Fury. My hard-coded fudge factor is 0.077 yielding: Every 2.0s: ntpq

Re: [time-nuts] NTP REFCLOCK for a Jackson Fury??

2013-10-17 Thread Bill Dailey
Correct. And I can access my soekris right now. Sent from mobile On Oct 17, 2013, at 1:35 PM, Paul tic-...@bodosom.net wrote: On Thu, Oct 17, 2013 at 2:00 PM, Scott Mace sm...@intt.net wrote: Try setting your Fury hpgps driver fudge flag4 to 1 He said he thought he was using 20+22

Re: [time-nuts] NTP REFCLOCK for a Jackson Fury??

2013-10-16 Thread Bill Dailey
You can use FreeBSD. I will dig out the refclock I am using with my disciplined soekris. Sent from mobile On Oct 16, 2013, at 4:44 PM, Frank Hughes hp_cisco...@yahoo.com wrote: Hi, What NTP REFCLOCK can be used for a Jackson Fury? I know that the Jackson Fury docs suggest using:

Re: [time-nuts] NTP REFCLOCK for a Jackson Fury??

2013-10-16 Thread Bill Dailey
I think I used type 20 and 22 with bsd on my soekris. I have had it off for some time because it started to error on boot. Have it apart now trying to figure out what is going on. I suspect a problem with the clock block. Set the fury to output ggtts. Bill Sent from my iPad On Oct 16,

Re: [time-nuts] NTP REFCLOCK for a Jackson Fury??

2013-10-16 Thread Bill Dailey
Yes Sent from mobile On Oct 16, 2013, at 8:39 PM, Paul tic-...@bodosom.net wrote: On Wed, Oct 16, 2013 at 7:18 PM, Bill Dailey docdai...@gmail.com wrote: Set the fury to output ggtts Did you mean GPGGA? If the Fury is producing RMC sentences then NMEA+PPS (20+22) should work

Re: [time-nuts] Trimble replacement part-2

2013-10-13 Thread Bill Dailey
Gpscon work fine as long as you are using win xp. I had a hitch when I tried to use it with win7. They also work with Z38xx. Bill Sent from my iPad On Oct 13, 2013, at 4:21 PM, Jim Sanford wb4...@wb4gcs.org wrote: Someone earlier suggested a group buy of the Jackson Labs device. I would

Re: [time-nuts] Trimble replacement part-2

2013-10-12 Thread Bill Dailey
I have a double oven and oem. Prices are reasonable. Inquire. Sent from mobile On Oct 12, 2013, at 5:37 PM, Paul tic-...@bodosom.net wrote: On Sat, Oct 12, 2013 at 5:49 PM, Frank Hughes hp_cisco...@yahoo.com wrote: I sent an EM to Jackson Labs sales to see if they will sell a Fury to

Re: [time-nuts] A readl atomic wristwatch

2013-10-01 Thread Bill Dailey
No but I bet he could build several with what he has laying around. Sent from mobile On Oct 1, 2013, at 12:23 PM, Joseph Gray jg...@zianet.com wrote: http://www.ablogtowatch.com/bathys-hawaii-cesium-133-atomic-wrist-watch-accurate-second-1000-years/ But will TVB buy one? :-) Joe Gray

Re: [time-nuts] Racal-Dana 199x DIY High Stability DIY Timebase

2013-09-24 Thread Bill Dailey
I watched his rubidium build last night. Good stuff. Sent from my iPad On Sep 23, 2013, at 11:47 PM, Raj vu2...@gmail.com wrote: Found via Hack-a-day http://gerrysweeney.com/racal-dana-199x-diy-high-stability-diy-timebase-hack-for-under-25/ Chees -- Raj, VU2ZAP Bangalore, India.

Re: [time-nuts] Doppler and FMT

2013-09-19 Thread Bill Dailey
You shouldn't be seeing a 2Hz spread. It can happen but in my experience that is big. Check gain control and make sure you aren't seeing artifacts. There is an fmt-nuts on yahoo which may be more appropriate for this. Doc Sent from mobile On Sep 19, 2013, at 10:32 AM, quartz55

Re: [time-nuts] display on sale

2013-05-29 Thread Bill Dailey
Do you have a contact? Sent from mobile On May 29, 2013, at 11:11 AM, Robert Darlington rdarling...@gmail.com wrote: Their local distributer (Vic Meyers Associates) just emailed me back with a quote. $99 a pop for the Symmetricom analog displays/clocks. They are out of digital time

Re: [time-nuts] Net4501's cheap...

2013-05-19 Thread Bill Dailey
I got 2 Sent from mobile On May 19, 2013, at 6:07 PM, Didier Juges shali...@gmail.com wrote: I snatched one for $20 and they are now $59 or best offer. On Sun, May 19, 2013 at 11:18 AM, Bob Camp li...@rtty.us wrote: Hi There are a number of things that a Net4501 could be used for….

Re: [time-nuts] u-blox -6T purchase

2013-03-18 Thread Bill Dailey
I thought there was someplace where you can get them for $35 or $60. Check the archives Sent from mobile On Mar 18, 2013, at 1:23 PM, Paul tic-...@bodosom.net wrote: On Mon, Mar 18, 2013 at 12:00 PM, Pieter ten Pierick wrote: The -T models are not that expensive. The problem is that you

Re: [time-nuts] Off topic project sort of heart rate monitor NEED BEATS PRE MINUTE TO ANALOG VOLTAGE

2013-02-20 Thread Bill Dailey
Another thing they do in the rate algorithms is make sure each beat falls in accordance with the previous 3 or 4 beats. Sent from mobile On Feb 20, 2013, at 6:02 AM, Bob Camp li...@rtty.us wrote: Hi Actually I have the 70's beat by a decade in terms of playing with home made ECG gear….

Re: [time-nuts] any time nuts in Cleveland ?

2012-12-20 Thread Bill Dailey
fts or ftc On Thu, Dec 20, 2012 at 11:35 AM, Chris Howard ch...@elfpen.com wrote: FTC-4060 -- Doc Bill Dailey KXØO ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] Comparing PPS from 2 GPS units

2012-12-14 Thread Bill Dailey
Yes it does. Sent from my iPad On Dec 14, 2012, at 10:47 PM, Hal Murray hmur...@megapathdsl.net wrote: saidj...@aol.com said: Time-Nuts, anyone willing to write this for the benefit of all? Does python run on Windows? If so, give me samples of input data and what you want as output.

Re: [time-nuts] Thunderbolt oven / non-stable operating temperature

2012-12-11 Thread Bill Dailey
If it is used for tempco it should affect the temp by stabilizing offset with temp changes correct? Maybe a more correct approach would be to disconnect it and test. Has been awhile since I read that testing stuff. Doc Sent from mobile On Dec 11, 2012, at 6:39 AM, Charles P. Steinmetz

Re: [time-nuts] PTTI 2012, part 2

2012-12-04 Thread Bill Dailey
-- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Doc Bill Dailey KXØO ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com

Re: [time-nuts] PTTI 2012, part 2

2012-12-04 Thread Bill Dailey
AM To: Discussion of precise time and frequency measurement; Bill Dailey Subject: Re: [time-nuts] PTTI 2012, part 2 In message CAMPhiorJihW9z6-q0+Qfd+GPLjs6e8_ovWrDxQoxV=92hgj...@mail.gmail.com , Bill Dailey writes: If you look at the papers on portable rubidium fountains

Re: [time-nuts] PTTI 2012, part 2

2012-12-04 Thread Bill Dailey
; Bill Dailey Subject: Re: [time-nuts] PTTI 2012, part 2 In message CAMPhiorJihW9z6-q0+Qfd+GPLjs6e8_ovWrDxQoxV=92hgj...@mail.gmail.com , Bill Dailey writes: If you look at the papers on portable rubidium fountains they are significantly bigger than a shoebox (65 cm). Diameter

Re: [time-nuts] PTTI 2012, part 2

2012-12-04 Thread Bill Dailey
-Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Poul-Henning Kamp Sent: Tuesday, December 04, 2012 9:19 AM To: Discussion of precise time and frequency measurement; Bill Dailey Subject: Re: [time-nuts] PTTI 2012, part 2

Re: [time-nuts] eBay Ublox

2012-11-21 Thread Bill Dailey
Very nice write up. I went down a similar road with my fury and Ubuntu... And then with FreeBSD on a soekris box. Have you tried refclock drivers instead of gpsd? I use gpsd on Ubuntu but decided to use refclock route instead for FreeBSD. I have an overall feeling that at us and ns levels

Re: [time-nuts] eBay Ublox

2012-11-21 Thread Bill Dailey
Yep. You are right. May help only in the serial data... And irrelevant. Doc ___ 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] Phase Shifter

2012-11-12 Thread Bill Dailey
GHz, and 8-12.4 GHz.. -- Doc Bill Dailey KXØO ___ 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] Measuring gpsdo vs itself

2012-11-05 Thread Bill Dailey
://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Doc Bill Dailey KXØO ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow

[time-nuts] Measuring gpsdo vs itself

2012-11-04 Thread Bill Dailey
If I use a gpsdo as my reference and feed the same 10MHz into a counter does that yield the reference independent noise floor of the measuring system? Seems to me it would look like an ideal reference with respect to the measuring system. Thanks, Doc KX0O

Re: [time-nuts] Measuring gpsdo vs itself

2012-11-04 Thread Bill Dailey
of the counter. /tvb - Original Message - From: Bill Dailey docdai...@gmail.com To: Time Nuts time-nuts@febo.com Sent: Sunday, November 04, 2012 7:19 PM Subject: [time-nuts] Measuring gpsdo vs itself If I use a gpsdo as my reference and feed the same 10MHz into a counter does

Re: [time-nuts] Adjusting HP 5065A frequency

2012-10-21 Thread Bill Dailey
Anybody in the middle of the country (Kansas City) have a maser or 5065a? I want to test my super-charged gpsdo but don't have the tools. Doc KX0O Sent from my iPad On Oct 21, 2012, at 11:43 AM, ewkeh...@aol.com wrote: John I agree with your observations. Before my time nuts time I did

Re: [time-nuts] GPSDO three cornered comparisons

2012-10-21 Thread Bill Dailey
I would like a treatise on ti reported by gpsdo's. Sent from my iPad On Oct 21, 2012, at 7:39 PM, Tom Van Baak t...@leapsecond.com wrote: David, This is problematic, since the Z38xx software is not really measuring the output of the GPSDO. Instead it's taking the internally reported PLL

[time-nuts] Thermistor on OCXO

2012-10-17 Thread Bill Dailey
C... was thinking of using thermal epoxy to hold it down and then putting some insulating material (suggestions) on top of it. -- Doc Bill Dailey KXØO ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin

Re: [time-nuts] Thermistor on OCXO

2012-10-17 Thread Bill Dailey
(and the other way around if the current decreases). On Thu, Oct 18, 2012 at 12:47 AM, Rick Karlquist rich...@karlquist.comwrote: Bill Dailey wrote: If I wanted to try to compensate for temperature variation of my OCXO... where would I attach a thermistor? What would be a good method

Re: [time-nuts] Centering ocxo

2012-10-03 Thread Bill Dailey
is 10^12. -- 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. -- Doc Bill Dailey KXØO

Re: [time-nuts] Centering ocxo

2012-10-03 Thread Bill Dailey
to 0ns. Higher values push faster. If your ocxo is still drifting (aging and or retrace) it will take about 48 hours for the aging measurement and correction to kick in, and bring the offset down to 0ns. Bye Said Sent From iPhone On Oct 3, 2012, at 3:46, Bill Dailey docdai...@gmail.com

[time-nuts] Z38XX parameters

2012-10-02 Thread Bill Dailey
Maybe a dumb question. Just got my new oscillator hooked up to my Fury board. Using the z38xx program of Ulrichs. Can someone help me wrap my head around the pps TI /s? It seems to be confusing me. May dovetail into the counter thread. Doc KX0O Sent from mobile

[time-nuts] Centering ocxo

2012-10-02 Thread Bill Dailey
I am ok for awhile but how do you center the efc of an ocxo? I understand there is something (screw) to adjust the ocxo so it is approximately on freq with 2.5v efc. Specific oscillator datum-c. I have he datasheet but doesn't say coarse frequency adjust this screw or some such. Doc KX0O

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Bill Dailey
On Oct 1, 2012, at 4:45 AM, Javier Herrero jherr...@hvsistemas.es wrote: El 01/10/2012 11:22, Hal Murray escribió: t...@westwood-tech.com said: information appeared to be non-existent. IMHO for pretty much *everything* that is for sale, if you have to ask for the price it is a scam. Yes,

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Bill Dailey
That isn't bad Sent from my iPhone and Hunter Lambert is my hero! On Oct 1, 2012, at 11:27 AM, Don Latham d...@montana.com wrote: Hello Hal and all: Here's the answer I got: Don, A single unit would set you back $465.00 and delivery would be in the region of 6 weeks. Best Regards

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Bill Dailey
Well over 1000. Can still buy them Sent from my iPhone and Hunter Lambert is my hero! On Oct 1, 2012, at 11:53 AM, Chris Albertson albertson.ch...@gmail.com wrote: On Mon, Oct 1, 2012 at 9:27 AM, Don Latham d...@montana.com wrote: A single unit would set you back $465.00 and delivery would

Re: [time-nuts] Tbolt Orignal Cost

2012-10-01 Thread Bill Dailey
/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Doc Bill Dailey KXØO ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] Symmetricom 58532A and 58536A group delay figures

2012-09-30 Thread Bill Dailey
I think the usually quote worse case. Sent from my iPhone and Hunter Lambert is my hero! On Sep 30, 2012, at 12:03 PM, Hal Murray hmur...@megapathdsl.net wrote: j...@febo.com said: My recollection was a bit off -- we saw about 22ns on the two-port 58535a and about 15ns on the 8-port

Re: [time-nuts] E1938A PN measurments

2012-09-30 Thread Bill Dailey
Bert, When you do tests like this, how long do you let the oscillators settle prior to testing? Doc Sent from my iPad On Sep 30, 2012, at 4:23 PM, ewkeh...@aol.com wrote: Rick I have some 10811's all below 1 E-12 in the 1 to 100 sec. range, a few as low as 4 E-13 at 10 seconds. How low

Re: [time-nuts] E1938A PN measurments

2012-09-30 Thread Bill Dailey
I have a corby ocxo (datum-c) that I am coupling with a fury oem board soon (need some connectors). I wish someone with good measurement equipment lived nearby. I would like to measure this vs my standard fury. I think the ocxo is mid 10-13 at 1s. Anybody near Kansas City? Doc Sent

Re: [time-nuts] BPSK Receiver GPS Antenna siting

2012-09-28 Thread Bill Dailey
I don't think it is legal to prohibit flag poles Sent from my iPhone and Hunter Lambert is my hero! On Sep 28, 2012, at 8:16 AM, Bob Camp li...@rtty.us wrote: Hi Flag poles are prohibited. Bob -Original Message- From: time-nuts-boun...@febo.com

Re: [time-nuts] Link to 50's 60's test equipment that I would like to get rid of

2012-09-28 Thread Bill Dailey
There is a comma in equipment messing that link up Sent from my iPad On Sep 28, 2012, at 7:54 PM, jim s j...@jwsss.com wrote: There is a space after 49em which messes up a copy if you don't watch out. I tried bitly and and tinyrul couldn't get it to work with the contracted link. They

Re: [time-nuts] REF osc distribution.

2012-09-06 Thread Bill Dailey
What is the port to port isolation and price Sent from my iPad On Sep 6, 2012, at 2:21 AM, Gaudin Luc lgau...@naelcom.com wrote: Hello, We have a product that have been specially design for these : NGA-DIS http://naelcom.fr/app/download/5788490907/Data+sheet+NGA-DIS+V1.0.pdf Regards,

Re: [time-nuts] 60 Hz line quirks, anybody recognize this stuff?

2012-09-01 Thread Bill Dailey
Firefox is notorious for screwing up audio in windows. I have had OS of problems with this. I actually think its something o o with networking. Sent from my iPad On Sep 1, 2012, at 5:16 PM, Chuck Forsberg WA7KGX N2469R c...@omen.com wrote: On 09/01/2012 02:17 PM, Magnus Danielson wrote: On

Re: [time-nuts] Is this a cesium frequency standard?

2012-08-23 Thread Bill Dailey
The PRS10 by SRS has serious shortcomings at short tau. I don't understand why but there is a huge hump in the adev. That's why I avoided one. Sent from my iPhone On Aug 23, 2012, at 10:42 AM, paul swed paulsw...@gmail.com wrote: OK have been staying clear of the replies. Thats a lot

Re: [time-nuts] Is this a cesium frequency standard?

2012-08-23 Thread Bill Dailey
data? If you made the measure, what reference clock did you use? I have (at work, in another department) a new PRS10, hope to get it back... On Thu, Aug 23, 2012 at 6:00 PM, Bill Dailey docdai...@gmail.com wrote: The PRS10 by SRS has serious shortcomings at short tau. I don't understand

Re: [time-nuts] Is this a cesium frequency standard?

2012-08-23 Thread Bill Dailey
Bill Dailey KXØO ___ 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] Is this a cesium frequency standard?

2012-08-23 Thread Bill Dailey
... On Thu, Aug 23, 2012 at 6:00 PM, Bill Dailey docdai...@gmail.com wrote: The PRS10 by SRS has serious shortcomings at short tau. I don't understand why but there is a huge hump in the adev. That's why I avoided one. Sent from my iPhone On Aug 23, 2012, at 10:42 AM, paul swed

  1   2   >