[time-nuts] Attila Active vs Passive H Masers
If I may direct you to www.quartzlock.com and the online catalog, you will see specifications of the small H Masers. We have both in use. Nicholai Demidov's paper at EFTF 2012 showed real results of a number of active H maser's with drifts down to E-17 levels One might ask when some benefit will be seen from all the trapped ion and optical clock work over the last 20 years ? cw a €160k AHM. We used a NIST system here for months to look at our AHM drift / offset, but our maser was below the noise level of the NIST system, so we just had E-12 results Why AHM performance better, look at the physics package drawings in the catalog to see the multiple ovens, magnetic screens etc, but mostly AHM Q=40,000, where PHM Q=10,000. Modern AHM have inbuilt autonomous autotuning to virtually illuminate drift. Incidentally, an oral paper by a NIST or USNO in Switzerland at EFTF many years ago reminded us all that any greater performance will have to account for lunar phases, earth tides, sea level change 2 x day, local magnetic anomalies 9the least of one's worries and in any event, what is the application / relevance of these levels of performance. of course the advancement of knowledge is one, but hugely expensive. Open question: We regularly measure stability noise floors to E-17 levels. What other parameter can be measured with greater resolution ? Clive Green G3OPX/MM Clive Green CEO Quartzlock + Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England (: +44 (0) 1803 862 062 7: +44 (0) 1803 867 962 š: cgr...@quartzlock.com ü: www.quartzlock.com Skype: clive.green.skype Messenger: cgr...@quartzlock.com Registered office: Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England Registered in England P Think Environment, print only if necessary. This is an e-mail from Quartzlock (UK) Limited, its contents (including all attachments) and any files transmitted with it are confidential and intended solely for the individual(s) to which it is addressed and may also be privileged. It may not be copied or printed by anyone other than the addressee and may not be disclosed or distributed in any way. If you have received this e-mail in error please inform Quartzlock (UK) Limited and delete it from your mailbox or any other storage devices. Although this e-mail and any attachments are believed to be free of any virus or other defects which might affect any computer or IT system into which they are received, no responsibility is accepted by Quartzlock (UK) Limited or any of its directors, staff or associated businesses or contacts for any loss or damage arising in any way from the receipt or use thereof. Opinions, conclusions and other information expressed in this message are not given or endorsed by Quartzlock (UK) Limited unless otherwise indicated by an authorised representative independent of this message. ___ 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] lower cost Rb, GPS OCXO with -110dBc/Hz@1Hz GPS Rb
We just made a breakthrough with 2 x 2 OCXO size Rb for $666:00 with 3 year warranty. This enables a low cost GPS-Rb one board with 1us holdover, NMEA or NTP. Our standard GPS OCXO has -110dBc/Hz@1Hz Phase Noise. Available from mid 2011 in quantity.not even on our web site yet. Clive Green CEO Quartzlock + Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England (: +44 (0) 1803 862 062 7: +44 (0) 1803 867 962 š: mailto:n...@quartzlock.com cgr...@quartzlock.com ü: http://www.quartzlock.com www.quartzlock.com Skype: clive.green.skype Messenger: cgr...@quartzlock.com Registered office: Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England Registered in England P Think Environment, print only if necessary. This is an e-mail from Quartzlock (UK) Limited, its contents (including all attachments) and any files transmitted with it are confidential and intended solely for the individual(s) to which it is addressed and may also be privileged. It may not be copied or printed by anyone other than the addressee and may not be disclosed or distributed in any way. If you have received this e-mail in error please inform Quartzlock (UK) Limited and delete it from your mailbox or any other storage devices. Although this e-mail and any attachments are believed to be free of any virus or other defects which might affect any computer or IT system into which they are received, no responsibility is accepted by Quartzlock (UK) Limited or any of its directors, staff or associated businesses or contacts for any loss or damage arising in any way from the receipt or use thereof. Opinions, conclusions and other information expressed in this message are not given or endorsed by Quartzlock (UK) Limited unless otherwise indicated by an authorised representative independent of this message. ___ 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] 60kHz shielded loop antenna
Have you considered an H Field Loop antenna. We built a quantity of these to dramatically increase sensitivity and reduce EMI on our LF tracking RXs (now obsolete) Some details are still on our web site under RF microwave components. Yours Clive Green CEO Quartzlock + Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England (: +44 (0) 1803 862 062 7: +44 (0) 1803 867 962 : mailto:n...@quartzlock.com cgr...@quartzlock.com ü: http://www.quartzlock.com www.quartzlock.com Skype: clive.green.skype Messenger: cgr...@quartzlock.com Registered office: Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England Registered in England P Think Environment, print only if necessary. This is an e-mail from Quartzlock (UK) Limited, its contents (including all attachments) and any files transmitted with it are confidential and intended solely for the individual(s) to which it is addressed and may also be privileged. It may not be copied or printed by anyone other than the addressee and may not be disclosed or distributed in any way. If you have received this e-mail in error please inform Quartzlock (UK) Limited and delete it from your mailbox or any other storage devices. Although this e-mail and any attachments are believed to be free of any virus or other defects which might affect any computer or IT system into which they are received, no responsibility is accepted by Quartzlock (UK) Limited or any of its directors, staff or associated businesses or contacts for any loss or damage arising in any way from the receipt or use thereof. Opinions, conclusions and other information expressed in this message are not given or endorsed by Quartzlock (UK) Limited unless otherwise indicated by an authorised representative independent of this message. ___ 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] FW: H Maser project.
From: Clive Green [mailto:cgr...@quartzlock.com] Sent: 30 August 2010 12:05 To: time nuts Subject: Galileo Masers If some nuts are seriously interested in building masers .it might just be doable as a collective. Knowing who could do what etc and how many are in the US and EU (or elsewhere) would be a great help. The group has touched on some of the problems, BUT, only some. We are involved in trying to rescue the Galileo space ground clock problem .must be in EU ..not Russian based as now. QL has been involved in H Maser RD for some 15+ years with Kvarz we have sold more than any other maser co. We have AHM PHM at Quartzlock with the best available comparator dare I say our own A7-MX. I would be happy to host a meeting in UK for any EU Nuts and in US at PTTI or FCS and welcome any direct approaches. Clearly a group could benefit from economies of scale and enjoy parts at production cost with proven electronics design to PCB files thrown in, most importantly the groups contribution. QL would have to protect the IPR of its major software investment in an FPGA or PIC, but these components would be available on a secured basis to the group. We have developed modern Maser electronics in UK and had UK built storage bulb, just as a test Kvarz were very impressed. I may have missed some of the maser postings, sorry, running the show here is full 24/7 sometimes. We have full maser workshop manual for viewing here no physics drawings .but lots of inside track. I believe in Galileo as 1 more way of keeping EU together, plus .like Airbus, its a great demo of EU competence. Your ideas welcome Yours Clive Green G3OPX/MM when relicenced. CEO Quartzlock + Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England (: +44 (0) 1803 862 062 7: +44 (0) 1803 867 962 : mailto:n...@quartzlock.com cgr...@quartzlock.com ü: http://www.quartzlock.com www.quartzlock.com Skype: clive.green.skype Messenger: cgr...@quartzlock.com Registered office: Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England Registered in England P Think Environment, print only if necessary. This is an e-mail from Quartzlock (UK) Limited, its contents (including all attachments) and any files transmitted with it are confidential and intended solely for the individual(s) to which it is addressed and may also be privileged. It may not be copied or printed by anyone other than the addressee and may not be disclosed or distributed in any way. If you have received this e-mail in error please inform Quartzlock (UK) Limited and delete it from your mailbox or any other storage devices. Although this e-mail and any attachments are believed to be free of any virus or other defects which might affect any computer or IT system into which they are received, no responsibility is accepted by Quartzlock (UK) Limited or any of its directors, staff or associated businesses or contacts for any loss or damage arising in any way from the receipt or use thereof. Opinions, conclusions and other information expressed in this message are not given or endorsed by Quartzlock (UK) Limited unless otherwise indicated by an authorised representative independent of this message. ___ 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] IRIG B
Can anyone help with a modern IRIG B chipset manufacturer Many thanks Clive Green Quartzlock + Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England (: +44 (0) 1803 862 062 7: +44 (0) 1803 867 962 š: mailto:n...@quartzlock.com cgr...@quartzlock.com ü: http://www.quartzlock.com www.quartzlock.com Skype: clive.green.skype Messenger: cgr...@quartzlock.com Registered office: Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England Registered in England ___ 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] maser threads
Be sure the heli coils are totally non magnetic Clive Green CEO Quartzlock + Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England (: +44 (0) 1803 862 062 7: +44 (0) 1803 867 962 š: mailto:n...@quartzlock.com cgr...@quartzlock.com ü: http://www.quartzlock.com www.quartzlock.com Skype: clive.green.skype Messenger: cgr...@quartzlock.com Registered office: Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England Registered in England P Think Environment, print only if necessary. This is an e-mail from Quartzlock (UK) Limited, its contents (including all attachments) and any files transmitted with it are confidential and intended solely for the individual(s) to which it is addressed and may also be privileged. It may not be copied or printed by anyone other than the addressee and may not be disclosed or distributed in any way. If you have received this e-mail in error please inform Quartzlock (UK) Limited and delete it from your mailbox or any other storage devices. Although this e-mail and any attachments are believed to be free of any virus or other defects which might affect any computer or IT system into which they are received, no responsibility is accepted by Quartzlock (UK) Limited or any of its directors, staff or associated businesses or contacts for any loss or damage arising in any way from the receipt or use thereof. Opinions, conclusions and other information expressed in this message are not given or endorsed by Quartzlock (UK) Limited unless otherwise indicated by an authorised representative independent of this message. ___ 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] distribution amplifier specifications
Our standard A5 distribution amplifier, 12 years old has 90dB adjacent out to out i...@10mhz, -130dB non adj iso @5MHz out to in -11...@10mhz. in to in (crosstalk is 9...@5mhz) Spur -110, BB noise -148dBm/Hz, delay match 2ns (or 300ps within a group of 4 ops), phase/temp of 10ps/C, open/short any o/p gives phase change 0.5ps, however, most important specs are PN @1Hz -140dBc/Hz, 10Hz -150dBc/Hz, 100Hz -165dBc/Hz and AVAR E-13/s, 3E-14/10s, e...@100s. This old design draws much on the NIST BJT design (Fred Walls et al) and should be improved using later components. We need this performance with modern Active Noise Filters after Cs and in general Maser based lab work. Clive Green CEO Quartzlock + Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England (: +44 (0) 1803 862 062 7: +44 (0) 1803 867 962 š: mailto:n...@quartzlock.com cgr...@quartzlock.com ü: http://www.quartzlock.com www.quartzlock.com Skype: clive.green.skype Messenger: cgr...@quartzlock.com Registered office: Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England Registered in England P Think Environment, print only if necessary. This is an e-mail from Quartzlock (UK) Limited, its contents (including all attachments) and any files transmitted with it are confidential and intended solely for the individual(s) to which it is addressed and may also be privileged. It may not be copied or printed by anyone other than the addressee and may not be disclosed or distributed in any way. If you have received this e-mail in error please inform Quartzlock (UK) Limited and delete it from your mailbox or any other storage devices. Although this e-mail and any attachments are believed to be free of any virus or other defects which might affect any computer or IT system into which they are received, no responsibility is accepted by Quartzlock (UK) Limited or any of its directors, staff or associated businesses or contacts for any loss or damage arising in any way from the receipt or use thereof. Opinions, conclusions and other information expressed in this message are not given or endorsed by Quartzlock (UK) Limited unless otherwise indicated by an authorised representative independent of this message. ___ 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] time-nuts Digest, Vol 61, Issue 59
Hi John The 6CW4 Nuvistor that I know is a metal/ceramic valve by RCAmaybe all at cross purposes ! Yours Clive Green CEO Quartzlock Q Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England : +44 (0) 1803 862 062 : +44 (0) 1803 867 962 : cgr...@quartzlock.com : www.quartzlock.com Skype: clive.green.skype Messenger: cgr...@quartzlock.com Registered office: Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England Registered in England Think Environment, print only if necessary. This is an e-mail from Quartzlock (UK) Limited, its contents (including all attachments) and any files transmitted with it are confidential and intended solely for the individual(s) to which it is addressed and may also be privileged. It may not be copied or printed by anyone other than the addressee and may not be disclosed or distributed in any way. If you have received this e-mail in error please inform Quartzlock (UK) Limited and delete it from your mailbox or any other storage devices. Although this e-mail and any attachments are believed to be free of any virus or other defects which might affect any computer or IT system into which they are received, no responsibility is accepted by Quartzlock (UK) Limited or any of its directors, staff or associated businesses or contacts for any loss or damage arising in any way from the receipt or use thereof. Opinions, conclusions and other information expressed in this message are not given or endorsed by Quartzlock (UK) Limited unless otherwise indicated by an authorised representative independent of this message. -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of time-nuts-requ...@febo.com Sent: 14 August 2009 18:40 To: time-nuts@febo.com Subject: time-nuts Digest, Vol 61, Issue 59 Send time-nuts mailing list submissions to time-nuts@febo.com To subscribe or unsubscribe via the World Wide Web, visit https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts or, via email, send a message with subject or body 'help' to time-nuts-requ...@febo.com You can reach the person managing the list at time-nuts-ow...@febo.com When replying, please edit your Subject line so it is more specific than Re: Contents of time-nuts digest... Today's Topics: 1. Re: on the E 117As and 5087As (Pete Lancashire) 2. Re: time-nuts Digest, Vol 61, Issue 57 (Mark Sims) 3. Re: Difference in GPS antennas (Pete Lancashire) 4. Difference in GPS antennas (Mark Sims) 5. Re: Difference in GPS antennas (Lux, Jim (337C)) 6. Taking apart timing GPS antenna (John Green) 7. Re: Difference in GPS antennas (Robert Darlington) 8. Re: Difference in GPS antennas (Dick Moore) 9. Best way for generating 8994.03 MHz from 2899.00042272.MHz? (Javier Serrano) -- Message: 1 Date: Fri, 14 Aug 2009 09:38:21 -0700 From: Pete Lancashire p...@petelancashire.com Subject: Re: [time-nuts] on the E 117As and 5087As To: j...@quik.com, Discussion of precise time and frequency measurementtime-nuts@febo.com Message-ID: 5c603f05cff512b813d32e7bac6b71d0.squir...@petelancashire.com Content-Type: text/plain;charset=iso-8859-1 I guess I have been lucky, I came across about 6 rolls a few years ago. I was picking up an instrument I won locally and as usual I took the time to find the drop boxs/dumpsters. They along with some other 'trash' such as the SMA terminators, attenuators, etc were ready to be tossed. To them not enough to make up a EBay lot. Another place is from old Ampprobes recorders, the problem there is the printed scale will be wrong. Before I found my HP rolls I get those from a local electrical disti who just gave them to me. They were in cubic feet per minute :-) -pete Does anyone know of a source fot te 117A strip chart paper or the two Nuvistors in the active loop? Thanks, -John === Just passing on the info, no association etc 110421524421 3 ea 5087A's $500 or Make offer I'm making my own after I get my TBolt in a chassis 110424016673 2 ea 117A's $200 or Make offer I all ready have one -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. -- Message: 2 Date: Fri, 14 Aug 2009 16:33:26 + From: Mark Sims hol...@hotmail.com Subject: Re: [time-nuts] time-nuts Digest, Vol 61, Issue 57 To: time-nuts@febo.com Message-ID: blu125-w20f4bcfe56e6ef9cd4a94bce...@phx.gbl Content-Type: text/plain; charset=iso-8859-1 There is a Leica L1 only survey antenna on Ebay right now for $200 (220451355177) a Javad choke ring unit for $900 (200373329570). The listings don't have any specs on the operating voltage. These are typical prices for what these devices sell
[time-nuts] bootstrap voltage standard to frequency standatrd
Josephson Junction is the ultimate way to reference Voltage to Frequency. Mother nature having blessed us with time frequency / ways of atomically referencing it so that this parameter may be generated measured as a more accurate/lower offset/repeatable/stable way than any other parameter. Most other parameters can also be referenced to frequency. Clive Green CEO Quartzlock + Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England (: +44 (0) 1803 862 062 7: +44 (0) 1803 867 962 š: mailto:[EMAIL PROTECTED] [EMAIL PROTECTED] ü: http://www.quartzlock.com www.quartzlock.com Skype: clive.green.skype Messenger: [EMAIL PROTECTED] Registered office: Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England Registered in England P Think Environment, print only if necessary. This is an e-mail from Quartzlock (UK) Limited, its contents (including all attachments) and any files transmitted with it are confidential and intended solely for the individual(s) to which it is addressed and may also be privileged. It may not be copied or printed by anyone other than the addressee and may not be disclosed or distributed in any way. If you have received this e-mail in error please inform Quartzlock (UK) Limited and delete it from your mailbox or any other storage devices. Although this e-mail and any attachments are believed to be free of any virus or other defects which might affect any computer or IT system into which they are received, no responsibility is accepted by Quartzlock (UK) Limited or any of its directors, staff or associated businesses or contacts for any loss or damage arising in any way from the receipt or use thereof. Opinions, conclusions and other information expressed in this message are not given or endorsed by Quartzlock (UK) Limited unless otherwise indicated by an authorised representative independent of this message. ___ 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] Oh the horror
Having sold, delivered, installed, commissioned some 50 Active Passive Hydrogen Masers around the world, with the attendant paperwork, for these controlled timepieces, end user obligations etc etc, I can fully feel for the lab awaiting a successful delivery. The insurance claim will be interesting. The repair will be long winded, but nothing can be expected otherwise. Having your own backing vacuum pump, turbo molecular vacuum pump, helium leak detector the attendant connections vacuum valves will help a local rather than a back-to-base fix. Then, look forward to e-15 / 100s AVAR not being able to live without them. If you have problems, QSY contact me. Look out for a breath of fresh air on the H Maser front. Clive Green CEO Quartzlock + Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England (: +44 (0) 1803 862 062 7: +44 (0) 1803 867 962 : mailto:[EMAIL PROTECTED] [EMAIL PROTECTED] ü: http://www.quartzlock.com www.quartzlock.com Skype: clive.green.skype Messenger: [EMAIL PROTECTED] Registered office: Gothic, Plymouth Road, Totnes, Devon. TQ9 5LH England Registered in England P Think Environment, print only if necessary. This is an e-mail from Quartzlock (UK) Limited, its contents (including all attachments) and any files transmitted with it are confidential and intended solely for the individual(s) to which it is addressed and may also be privileged. It may not be copied or printed by anyone other than the addressee and may not be disclosed or distributed in any way. If you have received this e-mail in error please inform Quartzlock (UK) Limited and delete it from your mailbox or any other storage devices. Although this e-mail and any attachments are believed to be free of any virus or other defects which might affect any computer or IT system into which they are received, no responsibility is accepted by Quartzlock (UK) Limited or any of its directors, staff or associated businesses or contacts for any loss or damage arising in any way from the receipt or use thereof. Opinions, conclusions and other information expressed in this message are not given or endorsed by Quartzlock (UK) Limited unless otherwise indicated by an authorised representative independent of this message. ___ 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] time-nuts Digest, Vol 28, Issue 5
Certificated Time Nut (Clive Green) certainly a wavemeter should count, so should Lecher Lines, not sure about a calibrated candle or sun dial (maybe if its very nice) but not hour glass / egg timer. Really well aged tuning fork OK but not the bowl of water with a hole in it gismo. If GPS or Rb are to be the lowest these very important steps certainly drop off the bottom. Clive Green Managing Director Quartzlock (UK) Ltd Gothic, Plymouth Road, Totnes, DEVON. TQ9 5LH Tel: - +44 (0) 1803 862 062 Fax: - +44 (0) 1803 867 962 Mob: - +44 (0) 7714 246 062 [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] www.quartzlock.com http://www.quartzlock.com PRECISE TIME FREQUENCY FOR TELECOMS, METROLOGY CALIBRATION STANDARDS - DISTRIBUTION - MEASUREMENT -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: 05 November 2006 02:00 To: time-nuts@febo.com Subject: time-nuts Digest, Vol 28, Issue 5 Send time-nuts mailing list submissions to time-nuts@febo.com To subscribe or unsubscribe via the World Wide Web, visit https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than Re: Contents of time-nuts digest... Today's Topics: 1. Re: Re Certified Time Nut Certificate (Jack Hudler) 2. Re: Re Certified Time Nut Certificate (Poul-Henning Kamp) 3. Re: HP 8642a Fan Fixed (Bill Janssen) 4. Re: Re Certified Time Nut Certificate (Bill Janssen) 5. HP-8642A (Colin Bradley) 6. Re: Re Certified Time Nut Certificate (tom) 7. Re: Re Certified Time Nut Certificate (Bill Hawkins) 8. Re: Re Certified Time Nut Certificate, hp 117A, WWVB (Tom Van Baak) 9. Re: Austron 1210D-03 Manual? (John Ackermann N8UR) 10. Re: Re Certified Time Nut Certificate (tom) -- Message: 1 Date: Sat, 4 Nov 2006 12:03:09 -0600 From: Jack Hudler [EMAIL PROTECTED] Subject: Re: [time-nuts] Re Certified Time Nut Certificate To: 'Discussion of precise time and frequency measurement' time-nuts@febo.com Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=us-ascii Scan one at RBG 600 DPI or better; I wee what I can do. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Doug Millar Sent: Saturday, November 04, 2006 9:35 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] Re Certified Time Nut Certificate Hi John, Ok. Great idea. We should make up a certificate that looks like an NIST cert. that certifies that if we have a working Cesium or hydrogen maser standard or two or more standards that can be traceable to NIST, you can become a Certified Time Nut. It will look nice hanging over a person's maser. Of course we could have levels as well. Master Nut (Own a maser or 5071) and then levels like primary, secondary and tertiary. The lowest could be having just a GPS source or rubidium. What do you think? Maybe we could come up with something interesting. Anyone want to make them up? Doug At 05:47 AM 11/4/2006, you wrote: Doug Millar said the following on 11/03/2006 09:57 PM: Should we be considered certified time nuts? or just certifiable? Depends on whether you're traceable to NIST... ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts -- Message: 2 Date: Sat, 04 Nov 2006 18:16:48 + From: Poul-Henning Kamp [EMAIL PROTECTED] Subject: Re: [time-nuts] Re Certified Time Nut Certificate To: Discussion of precise time and frequency measurement time-nuts@febo.com Message-ID: [EMAIL PROTECTED] You really need to get Borgmans permission to include the Zits nanosecond strip on the certificate. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. -- Message: 3 Date: Sat, 04 Nov 2006 11:37:10 -0800 From: Bill Janssen [EMAIL PROTECTED] Subject: Re: [time-nuts] HP 8642a Fan Fixed To: Discussion of precise time and frequency measurement time-nuts@febo.com Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=us-ascii; format=flowed John Ackermann N8UR wrote: Doug Millar said the following on 11/03/2006 09:57 PM: Should we be considered certified time nuts? or just certifiable? Depends on whether
