[time-nuts] Re: 1 pps / Gerber files
Hi Gerhard. If possible I would download the source files. Thank you very much for sharing your work. Best regards. 73 from Claude VA2 HDD ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 pps / Gerber files
DaveM is absolutely right -- JLCPCB is crazy cheap (and great quality) for small runs of PCBs, esp. in the default config (green soldermask PCBs, simple HASL (leaded) finish, 0.062" thick, et.). When I do PCBs I often choose alternate soldermask colors (there's a madness to the method :-) ), and I pretty much always go with ENIG (gold finish), to avoid any corrosion issues, etc. But that adds an easy $20-$40/board. If you want the absolute cheapest way to go, follow DaveM's instructions! It's a great way for folks who are not yet experienced with PCBs to get into handling PCBs, esp. if someone else is providing the Gerbers (the source files for making the PCBs). (At this point in my life I have designed around well over 500 PCBs). --Andrew Andrew E. Kalman, Ph.D. On Thu, Nov 25, 2021 at 12:19 PM DM wrote: > To all who are interested in Gerhard's boards; > If you just send a zip file of the Gerber files that Gerhard has provided > to JLCPCB, you can get 5 boards, including shipping to your address (I'm in > the USA; I can't say what shipping would be to other countries) for a grand > total of $5.90 USD. The board manufacturing cost is $2.00 for all 5 boards, > shipping is a measly $3.90. PCB build time is 1-2 days. Shipping is fast > and reliable. I've used DHL for previous orders, usually arriving within a > week. > They accept Paypal for payment. > > By ordering boards yourself, you get 5 boards, for less money than having > to go through a 3rd party, and avoiding USPO costs and delays. > > Cheers, > DaveM > > > > > > > > From: "Andrew Kalman" > To: "Discussion of precise time and frequency measurement" < > time-nuts@lists.febo.com> > Sent: Thursday, November 25, 2021 12:34:41 PM > Subject: [time-nuts] Re: 1 pps / Gerber files > > I have boards built regularly at JLCPCB, I could certainly order a batch > delivered to me, but I would have to send them all to someone else, to > deal > with distributing them out to folks on the list (I am time-constrained). > ___ > Andrew E. Kalman, Ph.D. a...@pumpkininc.com > > President > Pumpkin, Inc. > 750 Naples Street > San Francisco, CA 94112 USA > tel: (415) 584-6360 > fax: (415) 585-7948 > web: http://www.pumpkinspace.com > > *The information contained in this email message is intended only for the > use of the individual or entity to which it is addressed and may contain > information that is confidential. Furthermore, this information may be > protected by Federal law relating to confidentiality (42 CFR Part 2) > prohibiting any further disclosure. If the reader of this message is not > the intended recipient or the employee or agent responsible for delivering > this message to its intended recipient, you are hereby notified that any > review, dissemination, distribution or copying of the communication is > strictly prohibited. If you have received this communication in error, > please notify Pumpkin, Inc. immediately by telephone, email or fax and > return the original message to us via the means by which it was originally > delivered. Thank you.* > ___ > > > On Thu, Nov 25, 2021 at 10:31 AM Dan Rae via time-nuts < > time-nuts@lists.febo.com> wrote: > > > On 11/24/2021 1:06 PM, Gerhard Hoffmann wrote: > > > Hi, > > > > > > it took some time to make the Gerbers, > > > > It is much appreciated Gerhard, all the work you have done to make these > > available to the group. Many thanks! > > > > Now, the inevitable query; is anyone planning on ordering some of these > > boards, and is willing to make one available to me, in the US, for a > > share of the cost? > > > > Dan > > > > ___ > > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe > send > > an email to time-nuts-le...@lists.febo.com > > To unsubscribe, go to and follow the instructions there. > ___ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send > an email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. > ___ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send > an email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. > > ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 pps / Gerber files
To all who are interested in Gerhard's boards; If you just send a zip file of the Gerber files that Gerhard has provided to JLCPCB, you can get 5 boards, including shipping to your address (I'm in the USA; I can't say what shipping would be to other countries) for a grand total of $5.90 USD. The board manufacturing cost is $2.00 for all 5 boards, shipping is a measly $3.90. PCB build time is 1-2 days. Shipping is fast and reliable. I've used DHL for previous orders, usually arriving within a week. They accept Paypal for payment. By ordering boards yourself, you get 5 boards, for less money than having to go through a 3rd party, and avoiding USPO costs and delays. Cheers, DaveM From: "Andrew Kalman" To: "Discussion of precise time and frequency measurement" Sent: Thursday, November 25, 2021 12:34:41 PM Subject: [time-nuts] Re: 1 pps / Gerber files I have boards built regularly at JLCPCB, I could certainly order a batch delivered to me, but I would have to send them all to someone else, to deal with distributing them out to folks on the list (I am time-constrained). ___ Andrew E. Kalman, Ph.D. a...@pumpkininc.com President Pumpkin, Inc. 750 Naples Street San Francisco, CA 94112 USA tel: (415) 584-6360 fax: (415) 585-7948 web: http://www.pumpkinspace.com *The information contained in this email message is intended only for the use of the individual or entity to which it is addressed and may contain information that is confidential. Furthermore, this information may be protected by Federal law relating to confidentiality (42 CFR Part 2) prohibiting any further disclosure. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering this message to its intended recipient, you are hereby notified that any review, dissemination, distribution or copying of the communication is strictly prohibited. If you have received this communication in error, please notify Pumpkin, Inc. immediately by telephone, email or fax and return the original message to us via the means by which it was originally delivered. Thank you.* ___ On Thu, Nov 25, 2021 at 10:31 AM Dan Rae via time-nuts < time-nuts@lists.febo.com> wrote: > On 11/24/2021 1:06 PM, Gerhard Hoffmann wrote: > > Hi, > > > > it took some time to make the Gerbers, > > It is much appreciated Gerhard, all the work you have done to make these > available to the group. Many thanks! > > Now, the inevitable query; is anyone planning on ordering some of these > boards, and is willing to make one available to me, in the US, for a > share of the cost? > > Dan > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send > an email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 pps / Gerber files
I have boards built regularly at JLCPCB, I could certainly order a batch delivered to me, but I would have to send them all to someone else, to deal with distributing them out to folks on the list (I am time-constrained). ___ Andrew E. Kalman, Ph.D.a...@pumpkininc.com President Pumpkin, Inc. 750 Naples Street San Francisco, CA 94112 USA tel: (415) 584-6360 fax: (415) 585-7948 web: http://www.pumpkinspace.com *The information contained in this email message is intended only for the use of the individual or entity to which it is addressed and may contain information that is confidential. Furthermore, this information may be protected by Federal law relating to confidentiality (42 CFR Part 2) prohibiting any further disclosure. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering this message to its intended recipient, you are hereby notified that any review, dissemination, distribution or copying of the communication is strictly prohibited. If you have received this communication in error, please notify Pumpkin, Inc. immediately by telephone, email or fax and return the original message to us via the means by which it was originally delivered. Thank you.* ___ On Thu, Nov 25, 2021 at 10:31 AM Dan Rae via time-nuts < time-nuts@lists.febo.com> wrote: > On 11/24/2021 1:06 PM, Gerhard Hoffmann wrote: > > Hi, > > > > it took some time to make the Gerbers, > > It is much appreciated Gerhard, all the work you have done to make these > available to the group. Many thanks! > > Now, the inevitable query; is anyone planning on ordering some of these > boards, and is willing to make one available to me, in the US, for a > share of the cost? > > Dan > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send > an email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 pps / Gerber files
On 11/24/2021 1:06 PM, Gerhard Hoffmann wrote: Hi, it took some time to make the Gerbers, It is much appreciated Gerhard, all the work you have done to make these available to the group. Many thanks! Now, the inevitable query; is anyone planning on ordering some of these boards, and is willing to make one available to me, in the US, for a share of the cost? Dan ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 pps
On Thu, 2021-11-11 at 14:07 +, Andy Talbot wrote: > I made a 5MHz doubler plus distribution for my HP5061. You can see > the > design at http://g4jnt.com/10MHzDist.pdf The doubler is a full wave It's worth noting that the HP5370A has a doubler on the reference input. It will accept either 5 or 10 MHz, and in the case of 5 MHz, it doubles. It may not be as clean as what you need, but the full schematic is in the service manual. There is a reasonable chance that I could measure mine and see if it comes close. Bear in mind that it converts to a square wave in order to drive the counter, but also back to a sine wave for the reference output. Have fun, Darren ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 pps
Gerhard, May I have a copy of the Gerbers for the Doubler-Distribution amp? I started designing a PCB for the board myself, but if you could send me a copy of your files, surely would save me a ton of time and work. Thanks for your willingness to share your work. DaveM Hazel Green, AL, USA From: "Gerhard Hoffmann" To: time-nuts@lists.febo.com Sent: Wednesday, November 10, 2021 6:52:56 PM Subject: [time-nuts] Re: 1 pps Am 10.11.21 um 23:56 schrieb B Riches via time-nuts: > Any ideas on how to get a useable 1 pps output sig out of a Lucent KS-24361 > to use with SL sampling rate detector. > I am using the 1 pps output from a Jackson unit but would like to use the > Lucent if I can since that is my gps standard. > 73 > Bill, WA2DVUCape May, NJ There are some pics with red arrows herein: < http://www.hoffmann-hochfrequenz.de/downloads/DoubDist.pdf > The board I made was home-etched, so there are no left-overs, but you or whoever can get the Altium or Gerber files. Should be less than 20 bucks for 10 boards from JLCPCB, including postage. Cheers, Gerhard ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 pps
You seem to have gone to extraordinary lengths to trap out each unwanted product, yet the final spectrum shows only -50dBc products. That seems a poor return for that effort in filter design. I made a 5MHz doubler plus distribution for my HP5061. You can see the design at http://g4jnt.com/10MHzDist.pdf The doubler is a full wave rectifier and the filter a three section top capacitor coupled LC resonator.I achieved better than -80dBc rejection of the 5MHz fundamental and something like -75dB at 15MHz but this far down, measurement is quite a challenge. For most practical purposes these levels are more than adequate, but I do sometimes directly multiply up to 10GHz or higher, using this 10MHz source as the reference input to a PLL synthesizer. I think I've seen evidence that even -80dBc at 5MHz can introduce spurii at this level of multiplication, so really ought to be aiming at -100dBc - but that woul dbe impossible to measure with any test equipment I have. Even seeing -80dBc was a challenge. Andy www.g4jnt.com On Thu, 11 Nov 2021 at 00:53, Gerhard Hoffmann wrote: > > > Am 10.11.21 um 23:56 schrieb B Riches via time-nuts: > > Any ideas on how to get a useable 1 pps output sig out of a Lucent > KS-24361 to use with SL sampling rate detector. > > I am using the 1 pps output from a Jackson unit but would like to use > the Lucent if I can since that is my gps standard. > > 73 > > Bill, WA2DVUCape May, NJ > > There are some pics with red arrows herein: > > < http://www.hoffmann-hochfrequenz.de/downloads/DoubDist.pdf > > > The board I made was home-etched, so there are no left-overs, > but you or whoever can get the Altium or Gerber files. > Should be less than 20 bucks for 10 boards from JLCPCB, > including postage. > > Cheers, Gerhard > ___ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send > an email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 pps
Thank you Gerhard. Great project! Bill, WA2DVU 73, On Wednesday, November 10, 2021, 07:53:20 PM EST, Gerhard Hoffmann wrote: Am 10.11.21 um 23:56 schrieb B Riches via time-nuts: > Any ideas on how to get a useable 1 pps output sig out of a Lucent KS-24361 > to use with SL sampling rate detector. > I am using the 1 pps output from a Jackson unit but would like to use the > Lucent if I can since that is my gps standard. > 73 > Bill, WA2DVUCape May, NJ There are some pics with red arrows herein: < http://www.hoffmann-hochfrequenz.de/downloads/DoubDist.pdf > The board I made was home-etched, so there are no left-overs, but you or whoever can get the Altium or Gerber files. Should be less than 20 bucks for 10 boards from JLCPCB, including postage. Cheers, Gerhard ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 pps
Am 10.11.21 um 23:56 schrieb B Riches via time-nuts: Any ideas on how to get a useable 1 pps output sig out of a Lucent KS-24361 to use with SL sampling rate detector. I am using the 1 pps output from a Jackson unit but would like to use the Lucent if I can since that is my gps standard. 73 Bill, WA2DVUCape May, NJ There are some pics with red arrows herein: < http://www.hoffmann-hochfrequenz.de/downloads/DoubDist.pdf > The board I made was home-etched, so there are no left-overs, but you or whoever can get the Altium or Gerber files. Should be less than 20 bucks for 10 boards from JLCPCB, including postage. Cheers, Gerhard ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 pps
> Any ideas on how to get a useable 1 pps output sig out of a Lucent KS-24361 > to use with SL sampling rate detector. It's on a differential pair on at least one of the serial ports. I don't have the pinout handy. It can't be hard to find if you have a scope handy. -- These are my opinions. I hate spam. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: 1 PPS question
On 8/28/21 10:25 AM, Robert DiRosario wrote: For GPS receivers that give 1 PPS output the spacing between pulses is, obviously, very accurate. Are the pulses synchronized to something, like UTC seconds, or does it vary from one manufacturer to another, or even one unit to another? GPS seconds (which are very close to UTC, except for the fact that UTC is an ensemble time, which technically isn't available until it's been processed). Your receiver documentation should say whether it's the rising or falling edge of the pulse. Some receivers, just to make things exciting, generate the pulse by gating an internal clock, so at the nanosecond level, there's a variation due to the internal clock not being synced with GPS, but free running. Some receivers will tell you what the offset is in some data message. Or, it won't, and you have to measure it (or average over many seconds, which is what GPSDOs do). A simple question you ask and it can lead you down such a rabbit hole with hanging bridges, steps, etc. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
