Re: [time-nuts] Fw: 5065

Anywhere there is a concentration of HAMs you should be able to find the connector. I found the one for my 5061 at a ham swapmeet and found another for a friend by asking a few hams who were the 'collector' type. On Thu, Mar 17, 2016 at 10:54 AM, paul swed wrote: > Both

Re: [time-nuts] Z3801A recovering

The saga continues. Last night, I hooked up the second Z3801A that I got recently. At first, it was having a hard time finding satellites and then locking. I did a PRESET and started a new survey late last night. All day and this evening, it has been operating flawlessly. Tonight, I did a quick

Re: [time-nuts] Fw: 5065

In message , "Tom Van Baak" writes: With respect to 120/240VAC, the 5065 I have is jumpered for 5065, the manual (available from Artek) has the details. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP

Re: [time-nuts] Lucent GPS UTC confusion

jg...@zianet.com said: > I noticed on the Status screen that the Lucent unit said the PPS was locked > to GPS, not UTC, as the Z3801A is. So, I issued ":DIAG:GPS:UTC 1" and "TST?" > to correct this. > But things are not as I expected. Displaying the clock for both GPSDO's in > Z38xx now shows

Re: [time-nuts] Symmetricom SA.35M Information Request

Hi Ed, On 03/16/2016 07:11 AM, Ed Palmer wrote: Hi Magnus, Yes, the 10 MHz output sweeps about +114 and -168 Hz. The 6.834 GHz is moving +84 to -107 KHz. Not the same ratio, but close enough. So the RF side all looks good. Good thing too since this thing is much too small to have any

Re: [time-nuts] Fw: 5065

Ulrich, The connectors can be obtained reasonably inexpensively from Galco. http://www.galco.com/shop/Circular-Connectors They are a 3 pin circular connector, consisting of three parts, that are purchased as an 'insert', 'shell', and 'clamp', IIRC. I don't have the part numbers in front of

Re: [time-nuts] Home-brew GPSDO

I just went through the exercise of adding a phase comparator to my GPSDO. Jim Harmon from the list gave me the concept for it. It’s quite simple and elegant and so far it seems to be doing its job. I’m still in the throes of tuning the firmware to use it. Where I initially went wrong was

Re: [time-nuts] HP 5065A

In message , KA2WEU--- via time-nuts writes: >In my closet I found one of these, any merit to play with it ? I'm having oodles of fun with mine :-) http://phk.freebsd.dk/hacks/HP5065A/index.html -- Poul-Henning Kamp | UNIX since Zilog

Re: [time-nuts] How to run Lady Heather under Windows10

On 3/17/2016 5:34 AM, Neville Michie wrote: Hi, a new laptop and a new problem, I can not find COM1, and the slash command on Lady Heather provokes a response that spaces and slash marks are illegal in file names. Any ideas? thanks, Neville Michie

[time-nuts] Difference between Oncore models

When an old electronic gizmo starts failing across multiple units, the culprit is almost always failing electrolytic capacitors. Check your GPS board for electrolytic caps and replace them. There could be some other component that is susceptible to an age-related failure mode, but caps are

Re: [time-nuts] quartz thermometers

Quartzdyne makes pressure and temperature sensors for the oil industry based on quartz xtals: http://www.quartzdyne.com/quartz.html Daniel Em 13/03/2016 01:04, "jimlux" escreveu: > On 3/12/16 7:35 AM, Bob Camp wrote: > >> Hi >> >> The conventional MCXO uses an AT cut

Re: [time-nuts] quartz thermometers

Lots of info here: http://www.quartzdyne.com/white-papers.html Em 16/03/2016 20:53, "Daniel Mendes" escreveu: > Quartzdyne makes pressure and temperature sensors for the oil industry > based on quartz xtals: > > http://www.quartzdyne.com/quartz.html > > Daniel > Em

Re: [time-nuts] Unix software to generate nice looking *DEV plots

Attila, See adev4 (linear tau) and adev5 (logarithmic tau) in my www.leapsecond.com/tools/ directory. Windows .exe is there, as well as .c for unix. I use these for all my command line or scripted ADEV work. Results have been checked against NBS data sets, Stable32, Plotter, and Timelab. The

[time-nuts] Update on Oncores that can be used in Z3801A

My 'evaluator' (thanks Dave) has seen a mechanical interference issue with the modules with a straight antenna connector. But other then that so far there have not been any issues. As stated before these are pulls from NIB obsolete hand held surveying system.

Re: [time-nuts] Unix software to generate nice looking *DEV plots

Simplest solution is "gnuplot". You may already have it installed on your system. http://www.gnuplot.info On Thu, Mar 17, 2016 at 3:29 AM, Attila Kinali wrote: > Moin, > > I'm looking for some non-GUI software to generate the different *DEV > plots we generally use to asses

[time-nuts] How to run Lady Heather under Windows10

Hi, Sorry, I have to speak up here. This fake stuff isn't "clone" FTDI hardware. It is counterfeit hardware. And it uses FTDI's VID illegally. FTDI should block counterfeit hardware from using their drivers. Making the assumption that the counterfeit junk will work, and putting blame on

[time-nuts] Home-brew GPSDO

Hello All, Thanks to the advice earlier, I’ve gotten my HP 10544A OCXO working well, and close enough in frequency that the EFC is useful. I’ve started work on putting together a home-brew GPSDO. In short, it’s an Arduino Due, and a u-blox MAX-7 module. (I may think about grabbing a LEA module

[time-nuts] Timepod

Hello, I'm just about to order a timepod at $9400 from Micro Semi. Does any one have a used one for sale? Best Regards Martyn  Precision Test Systems UK & USA Contact Details: This email is from Martyn Smith United Kingdom  Precision Test Systems Ltd The Studio, Whitehouse Farm, New Hall

Re: [time-nuts] Unix software to generate nice looking *DEV, plots

Hi all, Attila, take a look at SigmaTheta Software . I'm using it from a while, and it's a collection of different, helpful scripts. https://theta.obs-besancon.fr/spip.php?article103=fr#download If you need it i can send you a shell script that i've created to plot , convert and finalize a

Re: [time-nuts] Fw: 5065

Also Allied Electronics... If I knew it was CPCs y'all were talking about... same stuff we used in aviation, et al. for comms, nav aids, etc... Also used in the oilfield for some equipment cables for data acquisition. Plug: https://www.alliedelec.com/te-connectivity-213905-1/70082887/

Re: [time-nuts] Fw: 5065

Tom, it is not, see the Farnell code below followed by Amphenol part number: Farnell code: 1914117 pn 97-3106A18-22S connector Farnell code: 1654733 pn 9779-513-8 plastic ring Farnell code: 151628 pn 97-3057-1010-1 cable clamp and bush see also:

Re: [time-nuts] Z3801A recovering

Hi If you look at the scale on the EFC plot, it’s likely showing you a 1 LSB change on the dac…. Bob > On Mar 16, 2016, at 7:38 PM, Joseph Gray wrote: > > As I mentioned a while back, my trusty Z3801A, which has worked well > for several years, went into holdover some time

Re: [time-nuts] Unix software to generate nice looking *DEV plots

I have done something similar at work (not for adev, for plots of corona test results on HV transformers) but since most engineers here are Linux/UNIX challenged, I put the Perl scripts on a Linux box and let people send their data through a web page via cgi, which returns the plot as graphic.

Re: [time-nuts] CERN hosted 9th White Rabbit workshop, presentations online

Thanks for the kind words Achim! On Thu, Mar 17, 2016 at 12:25 PM, Achim Vollhardt wrote: > CERN has hosted this week the 9th White Rabbit workshop. Actually our friends at Nkhef [1] hosted the event in Amsterdam. Nikhef is a really cool institute. In the same building

Re: [time-nuts] Conditioning Rubidium Oscillators

Attila and Bruce and Adrian, You are right, I stand corrected. Despite the talk in the app note about aging rates and calculating the average slope of the frequency offset, and about how m represents the rate of change of the frequency offset, when you dig into the formulas, they are doing a

Re: [time-nuts] Lucent PPS

I think the PPS output on the Lucent beats to a different drummer. Tried to get it to sync PC sound board for SL. Pulse too short. Used a pulse stretcher and that did not help. Other members of our list said they had problems with it also. Using a Jackson's 1 PPS output and it works fine.

Re: [time-nuts] Home-brew GPSDO

Hi Nigel, Mostly just chiming in because I'm planning to do something very similar, disciplining or tuning a VCO to a precise frequency based off GPS PPS - with a Due (Atmel SAM3x8E). In my case the control voltage is much wider range, so I'm forced to use an external DAC - I picked one

Re: [time-nuts] HP 5065A

Hi Ulrich, Indeed. Some LTC and they have very nice performance. You got a manual to go with it? Corby has some interesting mods for them, Poul-Henning is looking at further improvements. Cheers, Magnus On 03/16/2016 09:24 PM, KA2WEU--- via time-nuts wrote: In my closet I found one of

Re: [time-nuts] Serial-Ethernet

Hi Be *very* careful looking at plots based on translated DAC readings. You don’t really have all you need to come up with proper numbers. A simple scale error can make things look much better or much worse than they actually are. Bob > On Mar 16, 2016, at 7:54 PM, Joseph Gray

[time-nuts] IEEE article on Judah Levine

Nice article on NIST and NTP. http://spectrum.ieee.org/tech-talk/computing/networks/meet-the-guy-whose-software-keeps-the-nations-clocks-in-sync -GKH ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] Unix software to generate nice looking *DEV plots

Give rrdtool a shot. Many of the open source packages that have time series based plots use it. http://oss.oetiker.ch/rrdtool/gallery/index.en.html it is both the data storage, conditioning and graphing all in one On Thu, Mar 17, 2016 at 3:29 AM, Attila Kinali wrote: > Moin,

Re: [time-nuts] Serial-Ethernet

Well, the 4-port serial to Ethernet converter has been running for 22 hours, collecting data from two GPSDO's and it hasn't missed a beat. Although I have had the Lucent unit running for several months, this is the first time I have hooked up to the RS-422 port and taken data from it. From the

Re: [time-nuts] Difference between Oncore models

Could just be that the older Encore requires a hotter signal. Try without the 4-port splitter, those do introduce some attenuation. But then if you have an amplifier that's not it. On Wed, Mar 16, 2016 at 4:03 AM, Joseph Gray wrote: > I understand that the Oncore GPS in the

Re: [time-nuts] Fw: 5065

The HP 5065A Rubidium Frequency Standard requires a circular 3 pin adapter cable that can be plugged into 115V AC outlet. I checked all cables I have and this particular cable is not finable. Can the unit set to 110/220 V Maybe this cable can be purchased or assembled ? ULRICH

Re: [time-nuts] Lucent GPS UTC confusion

Hi The CDMA world (and most systems) want GPS lock rather than UTC. The only real change is likely in the status messages. I strongly suspect that a “UTC locked” version will not send a double pps pulse (or drop one) at a leap second boundary … Bob > On Mar 16, 2016, at 8:29 PM, Joseph Gray

Re: [time-nuts] Fw: 5065

Ulrich, You can buy the MS connector from Digikey, Mouser, etc. Some practical time-nuts just rip out the expensive mil-spec connector and install a normal IEC connector. Or, if you're brave, just remove the bottom panel and use jumper wires to deliver 120 VAC directly to the pins. But, very

Re: [time-nuts] Fw: 5065

Ulrich, you can buy it from Farnell: Farnell code: 1914117 pn 97-3106A18-22S connector Farnell code: 1654733 pn 9779-513-8 plastic ring Farnell code: 151628 pn 97-3057-1010-1 cable clamp and bush Luciano www.timeok.it On Thu 17/03/16 15:29 , KA2WEU--- via time-nuts

Re: [time-nuts] Difference between Oncore models

> Le 16 mars 2016 à 12:03, Joseph Gray a écrit : > > I understand that the Oncore GPS in the Lucent units is a newer module > that tracks eight satellites, vs the older Oncore in the Z3801A that > only tracks six satellites. > > I decided to do a re-survey with my Z3801A that

[time-nuts] Fwd: Home-brew GPSDO

-- re-posting with smaller attachment -- On Thu, Mar 17, 2016 at 12:40 PM, Logan Cummings wrote: > I was planning on using the Due's ADC to measure the voltage on the > integrator capacitor, but hadn't decided yet about a "good" current source > vs. a series resistor

[time-nuts] Z3801A EEPROM

Referring to this old post: https://www.febo.com/pipermail/time-nuts/2011-December/061718.html In particular, this statement: "but If the RTC in the receiver is not set or its battery has failed, and the reference year stored in EEPROM is also wrong, the receiver may select the wrong 20-year

Re: [time-nuts] DC-DC Converters

Dave never heard of these guys before. It looks like they have lots of stuff that can be useful at reasonable prices. Thanks for sharing. Paul WB8TSL On Sat, Mar 19, 2016 at 1:59 PM, Dave M wrote: > Alert for anyone repairing or toying with telcom equipment. Goldmine >

Re: [time-nuts] Fw: 5065

For those of us in Western Canada, I've purchased circular connectors at MRO electronics. Best regards Mark Spencer Sent from my iPhone > On Mar 17, 2016, at 9:29 PM, Clay Autery wrote: > > Also Allied Electronics... If I knew it was CPCs y'all were talking > about...

Re: [time-nuts] Difference between Oncore models

Hi > On Mar 16, 2016, at 7:03 AM, Joseph Gray wrote: > > I understand that the Oncore GPS in the Lucent units is a newer module > that tracks eight satellites, vs the older Oncore in the Z3801A that > only tracks six satellites. > > I decided to do a re-survey with my Z3801A

[time-nuts] How to run Lady Heather under Windows10

Another issue is that FTDI is back at it again with making their drivers incompatible with clone FTDI chips. Their previous attempt actually bricked the clone USB interface chips. Their latest driver just sends garbage out the serial port. If you are using a cheap USB to serial converter

[time-nuts] Lucent GPS UTC confusion

I noticed on the Status screen that the Lucent unit said the PPS was locked to GPS, not UTC, as the Z3801A is. So, I issued ":DIAG:GPS:UTC 1" and "TST?" to correct this. But things are not as I expected. Displaying the clock for both GPSDO's in Z38xx now shows them to be 17 seconds different,

Re: [time-nuts] DC-DC Converters

Goldmine has been around for a bunch of years. I've bought lots of stuff from them. Most of the time, their prices are significantly below MSRP. They sell first class stuff, usually discontinued items and retailers' clearance items. Great folks to buy from. My only heartburn with them is

[time-nuts] software for HP58503 ?

Hi, I'd like to connect my HP58503 to a pc running windosw 7 Enterprise. I do not have com port, I'm using an USB FTDI converter. Which software could I use ? I've tried the Symetricon SatSat but can't connect to my GPSDO any suggestion ? Cheers Stephane --- L'absence de virus dans ce

Re: [time-nuts] How to run Lady Heather under Windows10

Hi There are multiple possible issues: 1) Most (like 99.99%) new laptops do not have a com port, that gets you to some sort of external port 2) USB is pretty common, but as mentioned in another thread, ethernet and bluetooth are also quite possible. 3) Since it is an external bus, the

Re: [time-nuts] software for HP58503 ?

Well, it works better with correct RS232 wiring :-/ Now I can connect with SatStat ang get my status. I've seen there is GPScon which sounds nice. Any other software suggested ? Cheers Stephane -- Message d'origine -- De : "Stéphane Rey" À : "Discussion of

Re: [time-nuts] Unix software to generate nice looking *DEV plots

Hi Attila -- I have some stuff that does ADEV and similar calculations and shoves the results into plots using the Grace plotting tool. It's basically a perl script using some document formatting templates and a couple of shell scripts for control. I use it to automagically create web pages

Re: [time-nuts] How to run Lady Heather under Windows10

The OP got lots of good answers. This thread is now closed. /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.

Re: [time-nuts] quartz thermometers

Hi Indeed they do …. The target market is mainly down hole oil wells. Bob > On Mar 16, 2016, at 7:53 PM, Daniel Mendes wrote: > > Quartzdyne makes pressure and temperature sensors for the oil industry > based on quartz xtals: > > http://www.quartzdyne.com/quartz.html >

Re: [time-nuts] How to run Lady Heather under Windows10

I have had no problems running LH under WIn10 perhaps because my PC has a "traditional" serial port. I've had problems with serial-to-USB adapters; sometimes they work and sometimes they don't, depending on the application and the drivers. For example, my wife has an embroidery sewing machine

Re: [time-nuts] HP 5065A

Hi If you have the time to get it going, it’s in deed a good short term stability source. It’s long(er) term stability is not as good as a Cesium. Possibly the most interesting thing might be to rip out the silly old synthesizer and put in something more modern. If you decide to “throw it

Re: [time-nuts] Unix software to generate nice looking *DEV plots

allantools has functions for most of the xDEV statistics, and it is tested against Stable32 https://github.com/aewallin/allantools or https://pypi.python.org/pypi/AllanTools matplotlib works for plotting, but there are probably many alternatives. Anders On Thu, Mar 17, 2016 at 7:35 PM, Didier

[time-nuts] CERN hosted 9th White Rabbit workshop, presentations online

Fellow time-nutters, CERN has hosted this week the 9th White Rabbit workshop. As a reminder: White Rabbit is a open hardware fiber-based network which allows for precise (sub-ns) time transfer over fiber lengths of up to 10km (and even more) between attached nodes. The presentations are online:

[time-nuts] Possible STEL-1173 replacement

Apparently the PLCC version of the chip is a lot easier to find than the DIP chip. One could make an adapter board to use the PLCC in a DIP socket. The PLCC will probably not fit between the rows of legs of the DIP, so the adapter would need to be bigger than the DIP footprint. Or if

Re: [time-nuts] Fw: 5065

Both good answers the old connect to the bottom, and my favorite get the connector. I used both methods. Connected to the bottom, fixed the unit, purchased the real connector. It was something like $18 or $30. Search time nuts because 2 years ago someone figured out the model numbers and source.

Re: [time-nuts] How to run Lady Heather under Windows10

No problems with Windows 10. * If you are using USB-serial adapters use FTDI based devices and turn off 'Serial Enumeration' in the advanced properties in Device Manger - stops the data being used by Windows as Mouse data. This is also a good idea for Win7 and earlier. * Use a

Re: [time-nuts] Lucent GPS UTC confusion

Thanks to Paul, the Lucent is now reporting UTC. Apparently, even though the Status screen says UTC, it doesn't really change until after a power cycle. Bad UI. My Z3801A is off at the moment and about to go onto the bench, so I compared against: http://time.is/UTC Joe Gray W5JG On Thu, Mar

[time-nuts] HP 5065A

In my closet I found one of these, any merit to play with it ? Ulrich In a message dated 3/14/2016 5:00:28 P.M. Eastern Daylight Time, lars.walen...@hotmail.com writes: Hi Shouldn´t 5x10^-11 over 50C be 1x10^-12 / C? So with 2-4°C variation it is 2-4x10^-12. What about pressure

[time-nuts] Z3801A recovering

As I mentioned a while back, my trusty Z3801A, which has worked well for several years, went into holdover some time ago and stayed there. Until recently, I haven't had time to look into this. About 20 days ago, I did power cycle it to see if that made a difference. It did not. In the middle of

Re: [time-nuts] Serial-Ethernet

Hi Joe, The "TI" value reported through SCPI by a HP GPSDO is the current "time interval"; the phase error within the closed loop. So this is PLL data, not clock data. As such, double-difference ADEV statistics selected in that plot of yours are somewhere between misleading and invalid. The

Re: [time-nuts] Z3801A recovering

Dave, I power cycled it about 20 days ago, which did no good. That is the 496 hours holdover time. This time, I did just the survey once command. I'll try your suggestion before attacking the hardware. I'm currently using Z38xx.exe. Joe Gray W5JG On Thu, Mar 17, 2016 at 4:30 AM, Artek Manuals

Re: [time-nuts] How to run Lady Heather under Windows10

If you want to argue about FTDI, please take it over here: http://www.eevblog.com/forum/microcontrollers/ftdi-gate-2-0/ On Fri, Mar 18, 2016 at 10:36 AM, Dan Kemppainen wrote: > Hi, > > Sorry, I have to speak up here. This fake stuff isn't "clone" FTDI > hardware. It

Re: [time-nuts] How to run Lady Heather under Windows10

This USB/serial adapter has the FTDI chipset and is $14.99 USD. It is the one I am using on my Windows 10 laptop. http://www.amazon.com/gp/product/B00DCJRD2Y?psc=1=true_=oh_aui_detailpage_o03_s00 Ken WA2LBI On Thu, Mar 17, 2016 at 12:34 PM, David J Taylor < david-tay...@blueyonder.co.uk>

Re: [time-nuts] Unix software to generate nice looking *DEV plots

R might be a good place to start. I use it extensively for astrophysics (all graphs in my recent pulsar paper accepted in The Astrophysical Journal were done using R: http://arxiv.org/pdf/1602.01899v1.pdf). R has a huge support network. I haven't even looked, but I bet it'd be a great place to

Re: [time-nuts] Electronic Goldmine ===> was: Re: DC-DC Converters

I too have bought from them on several occasions. Always found their shipping rates high, although nothing as ridiculous like Dave M reported. What irks me more, is that often they have something I want on sale but they limit your purchase to a single item or very small quantity. 73 - Mike

[time-nuts] Framework for simulation of oscillators

Moin, Measurement we recently did showed some quite unexpected behaviour and I am trying to figure out where this comes from. For this I would like to simulate our system, which consists of multiple crystal oscillators that are coupled in a non-linear way (kind of a vector-PLL with a step

Re: [time-nuts] How to run Lady Heather under Windows10

NEville Thoughts 1)Get rid of WIN10 ...and instal WIN7 on the new laptop 2) Are you running a USB to COM port adapter? Could be a WIN 10 driver problem 3) as far as I know Windows in any version wont allow SLASH in a file name. I am not familiar with Lady Heather so I do not understand the

[time-nuts] Spreadsheet from Ulrich Rohde's paper

If you don't have MathCAD but would like a parameter fed version in Python... Drop me a line and I'll send you my version. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and

Re: [time-nuts] Difference between Oncore models

Hi A lot of “dead” Z3801’s have a blown fuse link input on the power supply. I’d check that first. Bob > On Mar 16, 2016, at 9:56 PM, Joseph Gray wrote: > > Thanks to all for the comments. I recently traded for another Z3801A > that I was told didn't work. I don't know

[time-nuts] Electronic Goldmine ===> was: Re: DC-DC Converters

I find Electronic Goldmine shipping quite reasonable and I am in Canada, perhaps a wee bit high but not overly. The sometimes have flat rate or free shipping specials to the US. Sign up for their email news letter. You will get notice of new items and special deals; some special deals are

Re: [time-nuts] Unix software to generate nice looking *DEV plots

Here is what my tool looks like: www.eds-fl.com/misc/graph/index.php You need to download a data file first, I added a link to download a small file 9kB. Again, this is not an ADEV tool, the file format is binary (came out of an old DOS tool that could not plot to save its life...) but it's

[time-nuts] DC-DC Converters

Alert for anyone repairing or toying with telcom equipment. Goldmine Electronics has a number of DC-DC converters having approx. 35 - 75 VDC inputs with various output voltage and current ratings listed in their web catalog (http://www.goldmine-elec-products.com/products.asp?dept=1492).

Re: [time-nuts] Serial-Ethernet

Yes, I should have realized that it wasn't comparing the GPSDO against anything. So, what is the point of this graph in Z38xx? On Wed, Mar 16, 2016 at 7:39 PM, Bob Camp wrote: > Hi > > Be *very* careful looking at plots based on translated DAC readings. You > don’t really have