Re: [time-nuts] Datum/Symmetricom BC637PCI TimeandFrequencyProcessor

Hi Greg, Good to see you are still around! Regards to Ron H if he's still there. I took another look for the CDs, but no luck. Can you liaise directly with Nigel to see if you can help him out. Cheers Rob Kimberley -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]

[time-nuts] Low profile coax connector?

After digging through boxes tonight, I found a few leftover bits from when I did some work for Trimble, in particular a couple of antennas from their early handheld units that I'll like to try out with a Jupiter board. I thought the connector was a Hirose H.FL (3mm tall) male, but I found some

Re: [time-nuts] Thunderbolt Group Buy, part 1

My feelings exactly, I would have done the same except that (1) I already have a Tbolt, and I had so many messages, that I (2) started in the middle of the flood... The original message should have been worded in such a way to avoid a massive reply. At this price, I really had to convince

Re: [time-nuts] HP Z3816AHP 5087A

Bruce Griffiths wrote: J. L. Trantham wrote: I have acquired a HP 5087A that I plan to use to distribute the 10 MHz output of my HP Z3816A GPSDO and was wondering if anyone had a manual or any other information on the unit. Also, does anyone have a manual on the Z3816A? Thanks, Joe

Re: [time-nuts] Thunderbolt Group Buy, part 1

On Wed, 07 May 2008 06:42:10 + [EMAIL PROTECTED] wrote: My feelings exactly, I would have done the same except that (1) I already have a Tbolt, and I had so many messages, that I (2) started in the middle of the flood... The original message should have been worded in such a way to

Re: [time-nuts] Updated GPS Interface docs available

Note, All of the text given below was hyperlinked - got removed somehow. You need to paste in the rest manually now. Rob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rob Kimberley Sent: 07 May 2008 07:21 To: 'Discussion of precise time and frequency

Re: [time-nuts] Thunderbolt Group Buy, part 1

Attila Kinali wrote: Although, such behaviour has existed since the first cave men draw pictures on the walls of their caves, i have the impression that it is getting more and more pronounced over the last years. And as you can see, it even caught technical people who were among those who

Re: [time-nuts] HP Z3816AHP 5087A

Download the 5087A manual from the Agilent website. Bruce Oops thats only a supplement. I thought I had downloaded the 5087A manual from there, obviously it was from elsewhere that seems to have disappeared since. Bruce QService on eBay sells a nice .PDF scan of the 5087A

Re: [time-nuts] Thunderbolt Group Buy, part 1

Chuck Harris said, in part. And, I don't think there is any cause for you to insult list members and call them cheapskates. No insult was intended. Rather, it was as close to using a 2x4 to get attention as is possible in email. At least you read the whole message. Bill Hawkins

Re: [time-nuts] Datum/Symmetricom BC637PCI TimeandFrequencyProcessor

In a message dated 07/05/2008 07:24:54 GMT Daylight Time, [EMAIL PROTECTED] writes: I took another look for the CDs, but no luck. Can you liaise directly with Nigel to see if you can help him out. - Hi Rob Many thanks for looking, it's much appreciated. I've

Re: [time-nuts] Datum/Symmetricom BC637PCI Time andFrequencyProcessor

In a message dated 06/05/2008 20:17:41 GMT Daylight Time, [EMAIL PROTECTED] writes: I had it running on an winXP disc that crashed a few months ago. -- Was that the earlier version of the software or something XP specific? -- I

[time-nuts] Was: Thunderbolt Group Buy, part 1

At 09:54 PM 5/6/2008, [EMAIL PROTECTED] wrote... people are not getting it, and keep sending-in requests to this list... Is there any possibility to set up a mail alias that can get all these requests, and keep the noise off of this list as well? Better yet, keep a list, and put those people

Re: [time-nuts] Thunderbolt Group Buy, part 1

Please add me to the list with two units. Hiro ___ 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] Updated GPS Interface docs available

Hi Rob: Thanks for the link. These pdf docs have pretty good bookmarks. They made it easy to find this: 20.3.3.8.2 GPS and GNSS Time. The GPS/GNSS-time relationship is given by, tGNSS = tE – (A0GGTO + A1GGTO (tE – totGGTO + 604800 (WN – WNotGGTO) + A2GGTO (tE – totGGTO + 604800 (WN –

Re: [time-nuts] Low profile coax connector?

Hi Dave: How about a photo and some dimensions? Have Fun, Brooke Clarke http://www.prc68.com/P/Prod.html Products I make and sell http://www.prc68.com/Alpha.shtml All my web pages listed based on html name http://www.PRC68.com http://www.precisionclock.com http://www.prc68.com/I/WebCam2.shtml

[time-nuts] HP Z3801A

I have one coming and am looking to collect some info on it. I Googled it and got quite a bit of info, but nowhere have I found a Service Manual or its like. Anyone know where I can get one ? Thanks, Dick, W1KSZ ___ time-nuts mailing list --

Re: [time-nuts] HP Z3801A

Richard- Schematics for the power supply/oven control board are available, but I've never seen anything else. (and even those are not from HP) -Dave -- Original message -- From: Richard W. Solomon [EMAIL PROTECTED] I have one coming and am looking to collect some

[time-nuts] Measuring 10 MHz accurately.

Hi, Two questions for all of you today. 1st Question I can measure 10 MHz frequency to an accuracy of about 2 parts in 10E-12 in a one second gate time. I use a SR620 time interval counter and make a timeAB measurement. I make two measurements of phase (between my UUT and my reference) and

Re: [time-nuts] Datum/Symmetricom BC637PCI Time andFrequencyProcessor

On Wed, May 7, 2008 11:37, [EMAIL PROTECTED] said: In a message dated 06/05/2008 20:17:41 GMT Daylight Time, [EMAIL PROTECTED] writes: I had it running on an winXP disc that crashed a few months ago. -- Was that the earlier version of the software or something

Re: [time-nuts] Measuring 10 MHz accurately.

Martyn, 2 parts in 10E-12 in a second's gate time would require to measure the time interval with an 2 ps resolution. Since the SR620 (at least mine) features a 20 ps single shot resolution, i fear your number is more likely 20 parts in 10E-12. Or what you are doing is to make = 10 measurements /

Re: [time-nuts] Measuring 10 MHz accurately.

At 10:20 AM 5/7/2008, Ulrich Bangert wrote: Martyn, 2 parts in 10E-12 in a second's gate time would require to measure the time interval with an 2 ps resolution. Since the SR620 (at least mine) features a 20 ps single shot resolution, i fear your number is more likely 20 parts in 10E-12. Or what

Re: [time-nuts] Measuring 10 MHz accurately.

What is the difference between 1E-12, 10E-12, and 10^-12? Ed, K1GGI snip 2 parts in 10E-12 snip ___ 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] Measuring 10 MHz accurately.

Ed, k1ggi wrote: What is the difference between 1E-12, 10E-12, and 10^-12? A little imprecision in the nomenclature, but it all should mean the same thing. 1 part in 10E12 is the same as saying 1 part per 10E12. It is the fraction: 1/[10E12], or 1.0 x 10E-12 ... snip 2 parts in 10E-12

Re: [time-nuts] OT Thunderbold whine...

On Wed, May 7, 2008 12:41, Mike S said: At 09:54 PM 5/6/2008, [EMAIL PROTECTED] wrote... people are not getting it, and keep sending-in requests to this list... Is there any possibility to set up a mail alias that can get all these requests, and keep the noise off of this list as well? Better

Re: [time-nuts] Datum/Symmetricom BC637PCI Time andFrequencyProcessor

In a message dated 07/05/2008 17:55:20 GMT Daylight Time, [EMAIL PROTECTED] writes: That was a 7.0.1 version of bc635cpp.exe I will _try_ to boot that HD within a few days. If you have not received the software from elsewhere next week, let me know. - Hi Bjorn Many

[time-nuts] Z3801A User Manual

If somebody needs the User Manual of the Z3801A, it can be downloaded from here : http://www.weaksignals.com/bin/Z3801A_UserManual.pdf 73 Alberto I2PHD P.S. It will stay there a few days only, so if you need it, get it now. ___ time-nuts mailing

[time-nuts] Service manual, Z3801A

Dick, If only! So far as I am aware, nobody has ever come up with a service manual for any of the HP/Agilent/Symmetricom GPSGOs. I'd be very pleased to be proved wrong! I have here an HP Z3801A, Symmetricom Z3815A, Chongho GPSR-A and Samsung GCRU-D, and nary a manual between them! As you are

[time-nuts] Altitude Effect on Cesium Standard?

Hi Tom: I've been making some measurements of the Datum 4065 vs. GPS where the 4065 is setting all the parameters (i.e. I have zeroed the offset and it's doing it's thing). After some days the t/T plot looks like a straight line at about 4E13 with a couple of ns bobble. The 4065 is at about

Re: [time-nuts] OT Thunderbold whine...

Who will be the first to copyright \ trademark THUNDERBOLT WHINE Steve ScopeFreak [EMAIL PROTECTED] wrote: Björn, The problem is that the people that should be insulted because: 1. they did not read what Tom van Baak wrote ( Those of you

Re: [time-nuts] Measuring 10 MHz accurately.

Hi Martyn, you may be able to use a Wavecrest DTS-2070 or better DTS-2075 Time Interval Analyzer for this. It has up to 40K samples/second capture capability, with +/-25ps single-shot accuracy, 10ps RMS noise, and 800 Femtoseconds resolution. If you can capture the data via GPIB, you

[time-nuts] A Note From Your Administrator

Folks, the time-nuts list now has 614 members. Not all of them are interested in the Thunderbolt discussion, or the Thunderbolt meta-discussion. Can we close the subject for now? Thanks, John ___ time-nuts mailing list -- time-nuts@febo.com To

Re: [time-nuts] OT Thunderbold whine...

At 03:00 PM 5/7/2008, Björn Gabrielsson wrote... Stop insulting people left and right. Stop telling people what to do. ___ 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] Measuring 10 MHz accurately

Ed wrote: What is the difference between 1E-12, 10E-12, and 10^-12? E means raised to the power of ten. x E y is shorthand for X * 10^y. (See http://en.wikipedia.org/wiki/E_notation#E_notation) 1E-12 and 10^-12 are the same number, specifically 1,000,000,000,000. 10E-12 is one order of

Re: [time-nuts] OT Thunderbold whine...

Björn, The problem is that the people that should be insulted because: 1. they did not read what Tom van Baak wrote ( Those of you newcomers to Time-Nuts should expect  to wait until the first batch has been shipped and TAPR is ready for you... AND ...I will advise you when the official

Re: [time-nuts] Measuring 10 MHz accurately.

Hi Ulrich: The SR620 has a 1 kHz Reference output that's derived from the 10 MHz external clock input. It also has a Gate/Arm function. Appendix B in the PRS10 Manual explains how to use these two features to make 1,000 time interval measurements per second thus averaging the 20 ps one shot

Re: [time-nuts] Measuring 10 MHz accurately: correction

Bruce Griffiths wrote: Martyn Smith wrote: Hi, Two questions for all of you today. 1st Question I can measure 10 MHz frequency to an accuracy of about 2 parts in 10E-12 in a one second gate time. I use a SR620 time interval counter and make a timeAB measurement. I make two

Re: [time-nuts] Measuring 10 MHz accurately.

Martyn Smith wrote: Hi, Two questions for all of you today. 1st Question I can measure 10 MHz frequency to an accuracy of about 2 parts in 10E-12 in a one second gate time. I use a SR620 time interval counter and make a timeAB measurement. I make two measurements of phase (between my

Re: [time-nuts] OT Thunderbolt whine...

Sigh. I've been biting my tongue (keyboard) over this whole kerfuffle. Perhaps this only goes to prove Clare Boothe right: No good deed goes unpunished. And a very good deed it was. Thanks, Tom, John, TAPR et al! You guys rock. -ch p.s. Please add me to the list. (JOKE! I'm already on

[time-nuts] Efratom FRS-C Service Manual.

Does anyone have a Efratom Model FRS-C service manual that I can download or have photocopied ?. Thanks. Lin Scott. ___ 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] Efratom FRS-C Service Manual.

Hi Lin, If you don't get a response today, I will send you my copy with notes, but I will have to do it from home tonight. I have repaired about 10 units in the past 5 years with great success. What appears to be the issue? Regards Gerald Molenkamp VK3FGJM Subject: [time-nuts] Efratom

Re: [time-nuts] Efratom FRS-C Service Manual.

Take a look here: www.to-way.com At 05:49 PM 5/7/2008, you wrote: Does anyone have a Efratom Model FRS-C service manual that I can download or have photocopied ?. Thanks. Lin Scott. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go

Re: [time-nuts] Efratom FRS-C Service Manual.

I have a copy of it on my web page: http://www.yeagley.net/Time-Nuts/ Daun -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lin Scott Sent: Wednesday, May 07, 2008 8:49 PM To: time-nuts@febo.com Subject: [time-nuts] Efratom FRS-C Service Manual. Does

Re: [time-nuts] 5085 manual

For Brian Walz, sorry Brian but my manuals do not go nearly that high in series numbers. Best of Luck with it Chuck ___ 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] Service manual, Z3801A

I found the User Manual but was not aware HP did not provide a S/M. Pity. Tnanks, Dick, W1KSZ -Original Message- From: Murray Greenman [EMAIL PROTECTED] Sent: May 7, 2008 12:37 PM To: time-nuts@febo.com Subject: [time-nuts] Service manual, Z3801A Dick, If only! So far as I am aware,

Re: [time-nuts] Altitude Effect on Cesium Standard?

Hi Tom: I've been making some measurements of the Datum 4065 vs. GPS where the 4065 is setting all the parameters (i.e. I have zeroed the offset and it's doing it's thing). After some days the t/T plot looks like a straight line at about 4E13 with a couple of ns bobble. Good. The

[time-nuts] HP/Agilent 5065A Rubidium Vapour frequency standard problem

Hi all, I'm in need of someone with some experience in fault finding a 5065A. I'm having a go at repairing my university's old unit which up until a short while ago was working well. I've got the PDF of the manual and I've been testing and trying various things but I need someone with a bit of