Re: [time-nuts] HP 5060A option 004

2006-11-06 Thread Robert Deliën
The military radio guys tell me that every service depot had a collection of dogs that couldn't be fixed. The dogs were identifiable because they were missing so many parts that were used to fix other equipment. These units originate from a German network operator (Deutsche Telekom). They

Re: [time-nuts] HP 5060A option 004

2006-11-06 Thread Magnus Danielson
From: Robert_Deliën [EMAIL PROTECTED] Subject: Re: [time-nuts] HP 5060A option 004 Date: Mon, 6 Nov 2006 09:14:40 +0100 Message-ID: [EMAIL PROTECTED] The military radio guys tell me that every service depot had a collection of dogs that couldn't be fixed. The dogs were identifiable because

[time-nuts] Frequency processing scheme of HP5065 vapour rubidium standard

2006-11-06 Thread Ulrich Bangert
Hi folks, me and my friend Frank (who has got his hands on two of these HP5065) have a problem in understanding the frequency processing scheme of these beasts. At a first glance everything looks pretty straightforward: A 60 MHz carrier derived from the OCXO is multiplied by 114 to get a

Re: [time-nuts] Frequency processing scheme of HP5065 vapour rubidium standard

2006-11-06 Thread Poul-Henning Kamp
In message [EMAIL PROTECTED], Ulrich Bangert writes: But what surprises us completely is the fact that different physics packages need DIFFERENT thumbwheel settings to generate the SAME time scale as seen with the two devices available. This is because rubidium vapour standards are not primary

Re: [time-nuts] Frequency processing scheme of HP5065 vapourrubidium standard

2006-11-06 Thread Ulrich Bangert
Hi Poul-Henning, They don't have a correct frequency, only a very stable frequency. The actual resonance frequency of a rubidium standard depends amongst other things on the partial pressures inside the physics package. We are well aware of these facts! But if THAT were the reason to

Re: [time-nuts] Frequency processing scheme of HP5065 vapour rubidium standard

2006-11-06 Thread Ulrich Bangert
Hi folks, please be assured that I do not want to argue away the existence of these dependencies! They don't have a correct frequency, only a very stable frequency. The actual resonance frequency of a rubidium standard depends amongst other things on the partial pressures inside the

Re: [time-nuts] Frequency processing scheme of HP5065 vapour rubidium standard

2006-11-06 Thread John Ackermann N8UR
Ulrich Bangert wrote: Agreed! But you are talking about things that happen INSIDE the physics package, don't you? Ok, let us assume that there WERE big differences in the physics packages that need to be compensated for. In THIS case the tunable synthesizer would indeed make sense and even

Re: [time-nuts] Frequency processing scheme of HP5065 vapour rubidium standard

2006-11-06 Thread Magnus Danielson
From: John Ackermann N8UR [EMAIL PROTECTED] Subject: Re: [time-nuts] Frequency processing scheme of HP5065 vapour rubidium standard Date: Mon, 06 Nov 2006 11:11:56 -0500 Message-ID: [EMAIL PROTECTED] Ulrich Bangert wrote: Agreed! But you are talking about things that happen INSIDE the

Re: [time-nuts] Frequency processing scheme of HP5065 vapour rubidium standard

2006-11-06 Thread Ulrich Bangert
John, offset that changed annually. IIRC, it was typically something like 300x10e-10. Agreed! And that is what the manual says its good for! However, the question remains why different physics packages need DIFFERENT thumbwheel settings in order to achieve the SAME time scale. 73 de

[time-nuts] HP 10811A/B OCXO OP/SRV manual is online at hparchive.com

2006-11-06 Thread Jack Hudler
I just finished and posted the 10811A/B OP/SRV to hparchives.com. http://www.hparchive.com/Manuals/HP-10811AB-Manual.pdf Enjoy, Jack attachment: winmail.dat___ time-nuts mailing list time-nuts@febo.com

Re: [time-nuts] HP 10811A/B OCXO OP/SRV manual is online athparchive.com

2006-11-06 Thread John Miles
Re: [time-nuts] HP 5060A option 004Wow, that is a NICE scan. Thanks for that contribution. -- john, KE5FX -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jack Hudler Sent: Monday, November 06, 2006 11:31 AM To: 'Discussion of precise time and

Re: [time-nuts] HP 10811A/B OCXO OP/SRV manual is online at hparchive.com

2006-11-06 Thread Jack Hudler
Thanks John, I wonder if the group has any requests. I'm working on a personal project to scan a considerable archive of documentation. It has required me to write a lot of custom OCR software and I thought I would try it on my favorite source first. What's the most requested or desired manual

Re: [time-nuts] HP 10811A/B OCXO OP/SRV manual is online at hparchive.com

2006-11-06 Thread John Ackermann N8UR
Not HP, but it seems that manuals for Austron gear are always hard to find. At the moment, I'd like to find one for the 1210D portable clock. John Jack Hudler wrote: Thanks John, I wonder if the group has any requests. I'm working on a personal project to scan a considerable archive

[time-nuts] Blackout in Europe and power line frequency jump

2006-11-06 Thread Marco IK1ODO
Saturday evening part of Europe experienced a blackout, caused, it seems, by a single failure in Northern Germany, then propagated up to southern Italy. A friend that routinely monitors the 0-120Hz ULF/ELF frequency spectrum captured the power line frequency jump following the fault. Hre are

Re: [time-nuts] Austron 1210D-03 Battery Pack Ideas

2006-11-06 Thread Brooke Clarke
Hi Mike: http://www.batteryspace.com has a number of Ni-Cad and Ni-MH cells. It's a good idea to replace with the same chemistry so that the charger works properly. Most modern batteries have a capacity that's much higher than batteries 10 or 20 years ago, so getting the exact same size is

Re: [time-nuts] Austron 1210D-03 Battery Pack Ideas

2006-11-06 Thread Mike Feher
Brooke - Thanks for the suggestion. I did want to replace them with the same chemistry for the reasons you stated. You are of course also correct that the more modern cells have a higher A/Hr capacity. So, sounds like regular modern NiCd D cells will be the way to go. That was my inclination to

Re: [time-nuts] HP 10811A/B OCXO OP/SRV manual is onlineat hparchive.com

2006-11-06 Thread Jack Hudler
If someone has that I would do it. If its glue bound I'll need to shear the binding off to release the pages from each signature. Right now the software needs another set of rules to create a document. I'm sure Austron manuals are significantly different. -Original Message- From: [EMAIL

Re: [time-nuts] Blackout in Europe and power line frequency jump

2006-11-06 Thread Bill Hawkins
Wow. There are some sophisticated tools to measure power line frequency, indeed. Many thanks for the report. Curious about what would cause that kind of massive overload. Seems like several generating plants just dropped off the grid. Regards, Bill Hawkins -Original Message- From:

Re: [time-nuts] Austron 1210D-03

2006-11-06 Thread John Ackermann N8UR
My local Batteries Plus was able to order the cells for me. They're called F cells and are normally 7000 maH, though a web search suggests there may be some 8000 maH versions available. I have the rebuilt pack installed and it seems to work OK. John Mike Feher said the following on

Re: [time-nuts] Austron 1210D-03

2006-11-06 Thread Mike Feher
I just went ahead and ordered from the source that Brooke suggested. They already had a 10 pack of type F NiCds built up, so, it should be just a drop in. That will be great as I have way too many projects anyway. BTW, I would very much be interested in a manual as well. It seems to work fine now,

Re: [time-nuts] Frequency processing scheme of HP5065 vapour rubidium standard

2006-11-06 Thread Normand Martel
--- Ulrich Bangert [EMAIL PROTECTED] wrote: John, offset that changed annually. IIRC, it was typically something like 300x10e-10. Agreed! And that is what the manual says its good for! However, the question remains why different physics packages need DIFFERENT thumbwheel

Re: [time-nuts] Austron 1210D-03

2006-11-06 Thread John Ackermann N8UR
The battery pack uses 12 cells, not 10... John Mike Feher said the following on 11/06/2006 07:00 PM: I just went ahead and ordered from the source that Brooke suggested. They already had a 10 pack of type F NiCds built up, so, it should be just a drop in. That will be great as I have way

Re: [time-nuts] Blackout in Europe and power line frequency jump

2006-11-06 Thread Paul Nelson
Hi folks- I lurk here from time to time, a piker with only one little FE-5650 and a Russian ships' chronometer to my name... oh, a few nixie clocks and a scope clock or so- but I saw this post about the power outage and thought I might contribute this snippet- From the Risks List-

Re: [time-nuts] Frequency processing scheme of HP5065 vapour rubidium standard

2006-11-06 Thread Brian Kirby
The offsets were determined by BIH for UTC as ; 1960, 1961 -150 x10-10 1962-1963 -130 x10-10 1964-1965 -150x10-10 1966-1971 -300x10-10 and in 1972 -0- the offset in clock rate was chosen to keep the UTC clock in reasonable agreement with ET (Chapter 1 - NBS Monograph 140) Ulrich

Re: [time-nuts] Frequency processing scheme of HP5065 vapourrubidium standard

2006-11-06 Thread Bill Hawkins
Normand Martel VE2UM wrote, With Cesium, high end techniologies like fountains or beans can be used Yes, I know it's a typo and I mean no harm to Normand, but it gives new meaning to the term bean counter. (Normally, a bean counter is an accountant.) Regards, Bill Hawkins

Re: [time-nuts] Frequency processing scheme of HP5065 vapourrubidium standard

2006-11-06 Thread Normand Martel
--- Bill Hawkins [EMAIL PROTECTED] wrote: Normand Martel VE2UM wrote, With Cesium, high end techniologies like fountains or beans can be used Yes, I know it's a typo and I mean no harm to Normand, but it gives new meaning to the term bean counter. (Normally, a bean counter is an

Re: [time-nuts] Blackout in Europe and power line frequency jump

2006-11-06 Thread Poul-Henning Kamp
In message [EMAIL PROTECTED], Bill Hawkins writes: Many thanks for the report. Curious about what would cause that kind of massive overload. Seems like several generating plants just dropped off the grid. A big cruise-boat needed to pass under a 400 kV line on the river Ems and to avoid trouble