Re: [time-nuts] Looking for HP5359A manual

2007-11-30 Thread Poul-Henning Kamp
In message [EMAIL PROTECTED], Magnus Danielson wri tes: http://rubidium.dyndns.org/~magnus/electronics/HP5359A-draft.pdf In addition to manuals, we should start to preserve the (EP)ROM contents of these instruments, early generation EPROMS are reaching end of life in a lot of systems. I already

Re: [time-nuts] HP 8924C's on ebay

2007-11-30 Thread Poul-Henning Kamp
In message [EMAIL PROTECTED], John Ackermann N8UR writes: One thing to be very carefull about with these, is that they can function as bona-fide base-stations if you hand them an antenna. I don't need to draw you a picture. The ad claims it's a derivative of the HP 8920B, and it looks like it.

Re: [time-nuts] EU funds Galileo

2007-11-30 Thread Chuck Harris
Javier wrote: As a hard working ES tax payer, I think that the funds are right there :) I prefer not to have exlusive dependence on DoD... You are dreaming if you think DOD won't deactivate Galileo if they need to. -Chuck Harris ___ time-nuts

Re: [time-nuts] EU funds Galileo

2007-11-30 Thread Javier
As a hard working ES tax payer, I think that the funds are right there :) I prefer not to have exlusive dependence on DoD... Javier Rob Kimberley escribió: As a hard working UK tax payer, I'd rather my money was spent elsewhere - I'm more than happy with GPS! Rob K -Original

Re: [time-nuts] EU funds Galileo

2007-11-30 Thread Jeff Mock
As a hard working US tax payer, I'm happy that someone is paying for an excuse to buy another disciplined oscillator one day... lots more plots, quibbling about differences in the 10 decimal point, etc. jeff Javier wrote: As a hard working ES tax payer, I think that the funds are right there

Re: [time-nuts] Of rubidium life and piggy-bank anemia....

2007-11-30 Thread Bruce Griffiths
Magne Mæhre wrote: Ulrich Bangert wrote: Use the three-cornered-hat method to rank your clocks! The literature seems to say that you need to do the measurements simultanously to get good results from the TCH method. I guess most of us have only one TIC at home, so I wonder how

Re: [time-nuts] HP 8924C's on ebay

2007-11-30 Thread Daun Yeagley
There is a lot of commonality between the various 892x test sets. When I get some time, I'll ping my buddy that was sales manager for the line at (HP)Agilent Spokane division. I know we've talked some about it in the past, but don't remember enough details to make any binding comments! Daun

Re: [time-nuts] Looking for HP5359A manual

2007-11-30 Thread Magnus Danielson
From: Poul-Henning Kamp [EMAIL PROTECTED] Subject: Re: [time-nuts] Looking for HP5359A manual Date: Fri, 30 Nov 2007 20:34:20 + Message-ID: [EMAIL PROTECTED] In message [EMAIL PROTECTED], Magnus Danielson wri tes: http://rubidium.dyndns.org/~magnus/electronics/HP5359A-draft.pdf In

Re: [time-nuts] Looking for HP5359A manual

2007-11-30 Thread Didier Juges
Bruce Lane has an EPROM repository, and I have one too: http://www.ko4bb.com/cgi-bin/manuals.pl Go to 5) ROM Images It could use more submissions, there are MANY more manuals than ROM images. I will put the HP 5370A ROMs there soon. You can upload to your heart content :-) Didier KO4BB

Re: [time-nuts] More details on IEEE Spectrum clock competition

2007-11-30 Thread Jeff Mock
Philip, I think this sounds pretty reasonable, here's my 2-cents worth. I think calibration should be part of delivering the clock. You can imagine a designer developing elaborate models for the timebase and you don't want to stifle creativity here. I think calibration is part of the

Re: [time-nuts] OT: Prologix GPIB and HP3478A...It's Alive!!!

2007-11-30 Thread Chuck Harris
Hi Abdul and Group, I'm beginning to feel like I am a manic depressive.. I keep going from the lowest lows to the highest highs... Well things are pretty high right now. Here's how I got there: First, I took my Prologix adapter apart to have a look see under the microscope. ... Abdul probably

Re: [time-nuts] Of rubidium life and piggy-bank anemia....

2007-11-30 Thread Magne Mæhre
Ulrich Bangert wrote: Use the three-cornered-hat method to rank your clocks! The literature seems to say that you need to do the measurements simultanously to get good results from the TCH method. I guess most of us have only one TIC at home, so I wonder how the results will be affected by

Re: [time-nuts] Of rubidium life and piggy-bank anemia....

2007-11-30 Thread Didier Juges
Maybe quasi-simultaneously is adequate, using a switch to sample the 3 pairs in rotation. The HP59307A can be used for that under GPIB control. I would think the main reason for doing it simultaneously is so that whatever source of error exists (temperature, vibration, etc) will affect the 3

[time-nuts] EU funds Galileo

2007-11-30 Thread Magnus Danielson
Hi! Just heard this and here is some details: http://investing.reuters.co.uk/news/articleinvesting.aspx?type=allBreakingNewsstoryID=2007-11-29T235046Z_01_L29893386_RTRIDST_0_EU-GALILEO-UPDATE-3.XML Looks like it just became likelier that we will have those Galileo birds. Cheers, Magnus

Re: [time-nuts] Looking for HP5359A manual

2007-11-30 Thread Magnus Danielson
From: Ulrich Bangert [EMAIL PROTECTED] Subject: [time-nuts] Looking for HP5359A manual Date: Fri, 30 Nov 2007 07:44:22 +0100 Message-ID: [EMAIL PROTECTED] Gentlemen, Ulrich, I just managed to buy an HP5359A time synthesizer on ebay. Has anyone of you a manual for that device in electronic

Re: [time-nuts] Looking for HP5359A manual

2007-11-30 Thread Poul-Henning Kamp
In message [EMAIL PROTECTED], Ulrich Bangert writes: Gentlemen, I just managed to buy an HP5359A time synthesizer on ebay. Has anyone of you a manual for that device in electronic form available that he can share with me? My search at the usual places (Agilent, Didier's pages, Boat anchor

Re: [time-nuts] HP 8924C's on ebay

2007-11-30 Thread Javier
That would be nice... to bring a more useful life to my 8922Ss, but I've not been yet able to gather too much information about them. Regards, Javier, EA1CRB Poul-Henning Kamp escribió: It would be interesting if somebody tried to convert a cellphone unit to 8920A to see if it was possible.

Re: [time-nuts] Chronometer contest sponsored by IEEE Spectrum

2007-11-30 Thread Max Robinson
In my experience watches come from the factory adjusted to gain about 5 seconds a month. The ones I have owned over the years seemed to be fairly stable in that. I have always wished there was a way for someone who is not a watch maker to open up such a watch and turn the trimmer capacitor,

Re: [time-nuts] Prologix 3478A

2007-11-30 Thread Grant Hodgson
Chuck et al I connected my Prologx 3.12 to the 3478A, ran 7470.exe and the 3478A's TLK icon came on straight away, with the RMT icon coming on a few seconds later. Repeated it for good measure with the same result. 7470.exe reported an error saying that it was talking to unsupported device

[time-nuts] More details on IEEE Spectrum clock competition

2007-11-30 Thread p . ross
A number of people have asked for more details on IEEE Spectrum's digital clock competition, so we've formulated the following list. Throughout, the idea is to build a clock that an ordinary person would want to use, in an ordinary home. That's why we want a display that can be read with ease

Re: [time-nuts] Chronometer contest sponsored by IEEE Spectrum

2007-11-30 Thread Hal Murray
With a little work you might be able to precisely calculate the maxima of the parabola and precisely set the frequency independent of temp and aging. Ha! What's the aging like for watch crystals? What type of cut to watch crystals use? Are there any generalizations about aging? I don't

Re: [time-nuts] More details on IEEE Spectrum clock competition

2007-11-30 Thread Eric Fort
over what durration will the clocks accuracy be measured? (seconds, minutes, hours, days, months, (years)? accuracy to be measured before disciplining with GPS, WWVB. calibration should be within the grasp of a layman Could some clarification be given here? I'm thinking that the clock

[time-nuts] PM6681 Manual

2007-11-30 Thread S. Nestra
For those interested, I have uploaded the service manual for the Fluke PM-6681/Pendulum CNT-81 to the k04bb website. Too bad you can't calibrate these beasts yourself, special software is needed. Regards, Stijn Nestra ___ time-nuts mailing list --

Re: [time-nuts] Of rubidium life and piggy-bank anemia....

2007-11-30 Thread Hal Murray
So use a gate array to implement a multichannel time stamp device. FPGA development boards are readily available and some people consider the price within range. Would digital inputs be good enough? Suppose you feed several 10 MHz signals into a FPGA and program it so each input signal

Re: [time-nuts] Chronometer contest sponsored by IEEE Spectrum

2007-11-30 Thread Bruce Griffiths
Max Robinson wrote: In my experience watches come from the factory adjusted to gain about 5 seconds a month. The ones I have owned over the years seemed to be fairly stable in that. I have always wished there was a way for someone who is not a watch maker to open up such a watch and turn

Re: [time-nuts] Of rubidium life and piggy-bank anemia....

2007-11-30 Thread Bruce Griffiths
Hal Murray wrote: So use a gate array to implement a multichannel time stamp device. FPGA development boards are readily available and some people consider the price within range. Would digital inputs be good enough? Suppose you feed several 10 MHz signals into a FPGA and program