Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread Magnus Danielson
On 04/25/2012 01:12 AM, Ed Palmer wrote: Magnus, On 4/24/2012 10:49 AM, Magnus Danielson wrote: On 04/24/2012 07:55 AM, Ed Palmer wrote: Hi Joe, On 4/23/2012 9:45 PM, J. L. Trantham wrote: Ed, I am not familiar with the Tracor units, only the 5061A and B as well as the 5065A. These units us

[time-nuts] PICTIC II ready-made?

2012-04-24 Thread Andrew Rodland
I've been having a lot of fun with this time-nut stuff over the past year or so, and I'm thinking about going atomic in the next year (GPSDRbO), but I'm a microprocessor kind of guy, and I have incredibly clumsy hands with electronics and soldering. As much, I'm wondering: Would anyone be willing

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread Ed Palmer
Paul, On 4/24/2012 5:24 PM, paul swed wrote: When all else fails check the grounds. Especially 40 year old screws. Been there, done that. This unit had multiple problems with bad soldered ground connections. I went through the unit and resoldered everything that looked the least bit odd.

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread paul swed
When all else fails check the grounds. Especially 40 year old screws. On Tue, Apr 24, 2012 at 6:13 PM, ed breya wrote: > Ed, > > Tuning the cavity should peak everything - it just maximizes the > excitation power at the microwave frequency, so you get the most output > from the Rb light waveleng

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread Ed Palmer
Hi Ed, On 4/24/2012 4:13 PM, ed breya wrote: Ed, Tuning the cavity should peak everything - it just maximizes the excitation power at the microwave frequency, so you get the most output from the Rb light wavelengths. A mechanical cavity resonator will have a very wide (compared to the modul

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread Ed Palmer
Magnus, On 4/24/2012 10:49 AM, Magnus Danielson wrote: On 04/24/2012 07:55 AM, Ed Palmer wrote: Hi Joe, On 4/23/2012 9:45 PM, J. L. Trantham wrote: Ed, I am not familiar with the Tracor units, only the 5061A and B as well as the 5065A. These units use the 2nd Harmonic as an integral part of

[time-nuts] Essays on the Nature of Time

2012-04-24 Thread J. Forster
>From a friend: http://www.fqxi.org/community/forum/category/10 -John = ___ 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] Antique Rubidium Standard Questions

2012-04-24 Thread ed breya
Ed, Tuning the cavity should peak everything - it just maximizes the excitation power at the microwave frequency, so you get the most output from the Rb light wavelengths. A mechanical cavity resonator will have a very wide (compared to the modulation frequencies you're looking for) bandwidth

Re: [time-nuts] Op and Service Manual for HP 5372A

2012-04-24 Thread J. L. Trantham
Dickson, I have a paper set of manuals. My recollection is that it is a multi-part set. What, in particular, are you looking for? Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Dickson Fu Sent: Tuesday, April 24, 2012 10:28 AM

Re: [time-nuts] Op and Service Manual for HP 5372A

2012-04-24 Thread Magnus Danielson
On 04/24/2012 05:27 PM, Dickson Fu wrote: Hi all, Does anyone have the Operation and Service Manual for HP 5372A? Available online on Agilent's site. Cheers, Magnus ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread Magnus Danielson
On 04/24/2012 07:55 AM, Ed Palmer wrote: Hi Joe, On 4/23/2012 9:45 PM, J. L. Trantham wrote: Ed, I am not familiar with the Tracor units, only the 5061A and B as well as the 5065A. These units use the 2nd Harmonic as an integral part of the feedback loop. Without the 2nd Harmonic, is there an

Re: [time-nuts] Lucent 40 dB Antenna

2012-04-24 Thread Chuck Forsberg WA7KGX N2469R
On 04/24/2012 07:40 AM, David J Taylor wrote: Is everyone buying these because they have 40dB gain or because they are the only reasonably priced GPS timing antennas on eBay right now? Thomas Knox Thomas, I bought mine because of the gain, but on +5V it performs worse than a "38 dBi" ante

Re: [time-nuts] Op and Service Manual for HP 5372A

2012-04-24 Thread Dave M
time-nuts-requ...@febo.com wrote: From: Dickson Fu Hi all, ? Does anyone have the Operation and Service Manual for HP 5372A? ? Thanks and Regards, Dickson Fu VR2WHF You can download PDFs of the HP 5372A TI Analyzer from Didier's site at http://www.ko4bb.com/manuals. Just search for 5372A.

Re: [time-nuts] Op and Service Manual for HP 5372A

2012-04-24 Thread Had
Dickson, There is a Op manual along with other info on my Web site at www.to-way.com in the Test Equipment section. Had K7MLR At 08:27 AM 4/24/2012, you wrote: Hi all, Does anyone have the Operation and Service Manual for HP 5372A? Thanks and Regards, Dickson Fu VR2WHF

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread paul swed
I actually think thats what time-nuts is about. I know I have done things with RBs and a CS that I never would have thought I would or could do. Heck its broke and junk and it feels great when you get the thing working again. Whats amazing is that when these were designed they were so cutting edge

[time-nuts] Op and Service Manual for HP 5372A

2012-04-24 Thread Dickson Fu
Hi all,   Does anyone have the Operation and Service Manual for HP 5372A?   Thanks and Regards, Dickson Fu VR2WHF ___ 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] Lucent 40 dB Antenna

2012-04-24 Thread David J Taylor
Is everyone buying these because they have 40dB gain or because they are the only reasonably priced GPS timing antennas on eBay right now? Thomas Knox Thomas, I bought mine because of the gain, but on +5V it performs worse than a "38 dBi" antenna, quite a lot worse. I'm wonder whether it ne

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread Ed Palmer
Joe, Thanks for your thoughts and ideas. I expected that this would be an interesting project and it hasn't disappointed me. I'm currently reading an article from the Bell System Technical Journal on microwave cavities so the learning continues. Hopefully, it will never end. Ed On 4/24/

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread J. L. Trantham
Ed, Sounds like you are on the right track. These things are fairly simple and fun to play with. The Rb assembly on the 5065A can be opened at either end. One end has the Rb lamp and is mounted by 3 screws, against the 'end' of the 'cavity'. Inside that is a 'filter' assembly and beyond that, a

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread paul swed
Great thought on using the led. That goes in the bagOtricks. Regards Paul On Tue, Apr 24, 2012 at 9:29 AM, Ed Palmer wrote: > Joe, > > > On 4/24/2012 6:50 AM, J. L. Trantham wrote: > >> Ed, >> >> If it is, indeed, stable at exactly 5.000 000 000 MHz, it is probably >> locked. That being said, I

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread Ed Palmer
Joe, On 4/24/2012 6:50 AM, J. L. Trantham wrote: Ed, If it is, indeed, stable at exactly 5.000 000 000 MHz, it is probably locked. That being said, I would wonder if there is an indicator issue and perhaps a control logic issue. On the HP units, the AC Amplifier, that receives the signal from

Re: [time-nuts] Antique Rubidium Standard Questions

2012-04-24 Thread J. L. Trantham
Ed, If it is, indeed, stable at exactly 5.000 000 000 MHz, it is probably locked. That being said, I would wonder if there is an indicator issue and perhaps a control logic issue. On the HP units, the AC Amplifier, that receives the signal from the Rb assembly, has been the source of some proble