Re: [time-nuts] Oscilloquartz 8600-3 Disassembly pictures...

Ulf Kylenfall photos: http://leapsecond.com/museum/osa8600/ http://leapsecond.com/museum/osa8600/view.htm Ed Palmer text and photos: http://leapsecond.com/museum/osa8601/ http://leapsecond.com/museum/osa8601/view.htm ___ time-nuts mailing list --

Re: [time-nuts] Oscilloquartz 8600-3 Disassembly pictures...

Hello, Once upon a time, I uploaded to Didier Juges' site the manual (English & French) for my Oscilloquartz 2200 which include a OCXO 8601 :

Re: [time-nuts] Oscilloquartz 8600-3 Disassembly pictures...

You are always welcome to upload time-nuts related material to my manual site www.ko4bb.com Didier KO4BB On Dec 14, 2017 1:03 AM, "Ulf Kylenfall via time-nuts" wrote: > > Tried to mail the pictures to Magnus. The mail bounced back. > Ole Petter Ronningen was kind to also

Re: [time-nuts] Lady Heather newb questions

Mark, Thanks. I think I got it: > Tcor, UNC Lady Heather happily posts cryptic messages from the device! > TFOM, FFOM Yup, I found them in the Z3801A manual. Appreciate the help. Will look for (maybe I have) the (or a) Symmetricom manual. Scott > On Dec 16, 2017, at 10:55 AM, Mark

Re: [time-nuts] Determining Allan Deviation From Interpolated Peak Frequency Readings

On Sat, Dec 16, 2017 at 7:36 AM, Gerhard Hoffmann wrote: I'm about to buy a RedPitaya Stemlab 125-14. Cost is just €310 in .de, > seems to have respectable performance, can emulate the > GnuRadio hardware boards more or less right out of the box, > Win & Linux. > > And it is a

Re: [time-nuts] Determining Allan Deviation From Interpolated Peak Frequency Readings

On Sat, Dec 16, 2017 at 3:57 AM, Attila Kinali wrote: > > > Apparently the Perseus is supported by GnuRadio[1]. Which means you can > just click your control system together (similar to LabView). According > to [2] the driver uses libusb and works on windows as well. > > If you

[time-nuts] Lady Heather newb questions

Hello, Thanks for the great discussions on this group, and the work of all who brought Lady Heather to us. I hope it is acceptable to ask some newbie questions? What works: Lady Heather installs, connects, and runs fine. I’m comfortable with the command line interface. What

[time-nuts] Lady Heather newb questions

Generally the best way to figure out what some cryptic Heather parameter is is to consult the manual for the device and see if you can find something similar to the label... you do have an extensive Symmetricom GPSDO manual, don't you? ;-) If Heather sees a wiggly value in a message , it

Re: [time-nuts] European Electronics Systems Radio Clock Model 100

Nigel Thank you for the information. I have two Model 100 units, one has a stick on label saying "GPS modified" the other has no label but as they came from the same source at the same time, it may be that the label has come off. I am going to take a look inside the units later today. The

Re: [time-nuts] Determining Allan Deviation From Interpolated Peak Frequency Readings

Am 16.12.2017 um 11:57 schrieb Attila Kinali: [1] "Oscillator metrology with software defined radio", by Sherman and Jördens, 2016 https://arxiv.org/abs/1605.03505 I have seen this paper before. Unfortunately, it is a lot more work to implement than what I have already done. I am really a

[time-nuts] Somewhat OT: Resurrecting a Symmetricom ND-4 Clock / Date display with a Raspberry Pi.

Hi all, I've had a broken Symmetricom ND-4 NTP Clock sitting around for a time, and it somehow turned into one of those OCD projects which I just couldn't drop. I wanted an NTP display to show what my time is, and this was such a simple device that the fact I couldn't fix it really bugged me.

Re: [time-nuts] accurate 60 hz reference chips/ckts

I sent a note to Vlad off-list about the bug in the MCU code, but it's worth a reminder to the list as well since many of you are programmers and this arcane issue comes up every once in a while here and on the web. The way to compute time differences of free-running binary time counters is

Re: [time-nuts] Determining Allan Deviation From Interpolated Peak Frequency Readings

On Fri, 15 Dec 2017 10:08:29 -0700 Mark Goldberg wrote: > > The approach using FFT works, but just using the peak frequency, you throw > > away half of the data (the phase) and also limit yourself in precision > > to the bin width. It's not 100% clear that estimating the

Re: [time-nuts] Simple open source microcontroller solution to tune DDS needed

Hi list Here is an Arduino way to control AD9833, AD9850, AD9851, AD9912 and AD9913 Alternatively using an Atmega128A to control an AD9912: Bo ___ time-nuts mailing

[time-nuts] Lady Heather newb questions

Hello, Thanks for the great discussions on this group, and the work of all who brought Lady Heather to us. I hope it is acceptable to ask some newbie questions? What works: Lady Heather installs, connects, and runs fine. I’m comfortable with the command line interface. What

Re: [time-nuts] accurate 60 hz reference chips/ckts

Yo All! Jeremy wrote: > I'm surprised Vlad is seeing as much as six seconds differential > but maybe I don't understand the experiment. I've done measurements > of the line frequency here in California and never seen much > variation. I live in Central Oregon. Next to the Pacific Intertie

Re: [time-nuts] Determining Allan Deviation From Interpolated Peak Frequency Readings

Thanks for the detailed response. On Fri, Dec 15, 2017 at 5:42 AM, Attila Kinali wrote: > Hey Mark > > On Wed, 6 Dec 2017 15:43:49 -0700 > Mark Goldberg wrote: > > > https://sites.google.com/site/perseusmods/ > > and > >