HP-5065a bought and finally working!
Dear Joe,
Thank you for your thoughts! The extra manual sheets will certainly be of a great help. I will come back to you regarding the serial number of the equipment and also the part number of the manual. I am still at the office.
Following the multiple advises, I am ordering a Brooke Shera board to build my disciplining set for my 105B from the TB. I am surely having lots of fun with it.
Thank you again.
Regards,
Edgardo Molina
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T : 55 55 55202444
M : 04455 20501854
Piensa en Bits SA de CV
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On Aug 22, 2012, at 7:22 AM, J. L. Trantham jltran@att.net wrote:
Edgardo,
Congrats on getting the 5065A up and operational. Make sure the A11 Board
(Temperature Controller) is all OK. Failure there can destroy the A12 RVFR
Assembly. There is a lot of 'expertise' on the list for this unit.
What is the serial number of your unit and what is the part number of the
manual you have?
I have a couple of manuals and I may also have the 'change sheets' that
updates the manual to your serial number. It may take me a while to chase
that down but if I have the 'change sheets', I can scan them and send them
to you.
I have not heard of anyone 'disciplining' the 5065A by GPS, other than by
hand from week to week. However, the 105B has a built in connection on the
back that is great for that purpose (negative slope, as I recall) and I have
done that using a Brooks Shera controller board and the 1 PPS from my TBolt.
It works quite well.
Joe
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of Edgardo Molina
Sent: Wednesday, August 22, 2012 12:22 AM
To: time-nuts@febo.com
Subject: [time-nuts] HP-5065a bought and finally working!
Dear Group,
I wish you well.
Do you recall a message and thread about a month ago with my concerns about
buying a used / unknown condition HP-5065a rubidium frequency standard? I
bit the bullet and bought it. Almost mint condition (cosmetically speaking)
and with several operational issues.
Well, It took me several weeks to put it back to work. Several capacitors on
several boards along with a couple of transistors and an IC were replaced.
After that any being bored by the yellow light, it finally came off to allow
a beautiful green lock condition light. I went through the necessary steps
to tune it and calibrate it. Now, as I have been told recently. "You have
been bitten by the Time Nuts bug." I am not complaining at all.
Now the technical issues if you kindly allow:
a. Does anybody have an HP-5065a manual for the latest versions? Mine (which
I downloaded from the Internet) is intended for earlier versions. It seems I
have one of the last produced units. I would kindly appreciate any help on
this and I am willing to pay for time and expenses to anybody who could
help. During the repair process I found several differences in the earlier
versions design and had to figure out hoy mine works.
b. Is it possible to build a GPSDRb? I would like to know if it is
reasonable to pursue the goal to discipline the 5065a with a TB which I also
got recently.
c. I am waiting for the delivery of a recent purchase. An HP-59309a Digital
Clock to go with the HP 5065a. How I wish I could find the optional LED
integrated optional clock and 1PPS output. Is my purchase a good match for
the 5065a? Any other suggestions to drive a clock?
d. I am waiting also for de delivery of an HP-105b mint condition quartz
frequency standard. Would a second 59309a make sense to use it with this
quartz standard? Or just saving it for a Cesium? Anybody willing to sell a
spare, dust gathering, clean unit to me?
e. Any suggestions for software of lab equipment to measure my experiments
like AD, jitter, phase comparisons, etc?
While I wait I am doing some experiments with a FE Rb standard to discipline
an Adret synthesiser to output 32.768 KHz to directly drive a Nixie clock
kit I just finished building.
Your comments are surely welcome. Thank you!
Kind regards,
Edgardo Molina
XE1XUS
Mexico
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Dear Azelio,
Wow! The TimePod is a beauty. I wrote to John Miles regarding payment options and ordering instructions. Not planning to buy one at that price soon, but better be safe than sorry. What a nice piece of equipment.
Are all of you guys obtaining your graphical information and Allan Dev information using TimePod exclusively? Sorry to sound newbie on these matters. I am planning to take the plunge to full depth, you will see.
In the mean time, are there other generic or home made solutions for measuring? I only have the following in my "arsenal wanna be":
Oscilloscope. Digital 100Mhz 2 channels (Siglent)
Oscilloscope. Analogue 20Mhz 2 channels (Goldstar)
Bench multimeter digital (HP)
Frequency counter 10Hz to 1GHz (Sencore)
Frequency counter 10Hz to 20GHz (HP)
Signal generator synthesiser up to 60Mhz (HP)
Signal Hound Spectrum Analyser up to 4Ghz
Multiple other gadgets with lesser quality not worth mentioning
Could there be software and SDR, USB connected kits solutions to play around while saving for a TimePod?
Thank you.
Regards,
Edgardo Molina
Dirección IPTEL
T : 55 55 55202444
M : 04455 20501854
Piensa en Bits SA de CV
Información anexa:
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On Aug 22, 2012, at 4:43 AM, Azelio Boriani azelio.boriani@screen.it wrote:
I think that it is the time for you to look at the TimePod: the TimePod can
help you with Allan Deviation and phase noise measurement, the next step
after clocks is measuring equipment and the TimePod is a sort of all-in-one
for time-nuts, its place is right after the bench yellow multimeter.
On Wed, Aug 22, 2012 at 9:03 AM, Chuck Forsberg WA7KGX N2469R
caf@omen.comwrote:
If it is a really good Rb standard, consider adjusting the
standard yourself by measuring the phase over several
days once the standard has warmed up and settled down.
A GPIB counter with phase measurement is useful for this.
--
Chuck Forsberg WA7KGX N2469R caf@omen.com www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
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Dear Chuck,
Thank you for your advise. Could you please kindly give me an example of such a GPIB counter with phase measurement? HP model number? My 5065a has been running with a beautiful green light for almost 72hrs. Glad to be back home and found it warm and stable.
Take care!
Regards,
Edgardo Molina
Dirección IPTEL
T : 55 55 55202444
M : 04455 20501854
Piensa en Bits SA de CV
Información anexa:
CONFIDENCIALIDAD DE INFORMACION
Este mensaje tiene carácter confidencial. Si usted no es el destinarario de este mensaje, le suplicamos se lo notifique al remitente mediante un correo electrónico y que borre el presente mensaje y sus anexos de su computadora sin retener una copia de los mismos. Queda estrictamente prohibido copiar este mensaje o hacer usode el para cualquier propósito o divulgar su en forma parcial o total su contenido. Gracias.
NON-DISCLOSURE OF INFORMATION
This email is strictly confidential and may also be privileged. If you are not the intended recipient please immediately advise the sender by replying to this e-mail and then deleting the message and its attachments from your computer without keeping a copy. It is strictly forbidden to copy it or use it for any purpose or disclose its contents to any third party. Thank you.
On Aug 22, 2012, at 2:03 AM, Chuck Forsberg WA7KGX N2469R caf@omen.com wrote:
If it is a really good Rb standard, consider adjusting the
standard yourself by measuring the phase over several
days once the standard has warmed up and settled down.
A GPIB counter with phase measurement is useful for this.
--
Chuck Forsberg WA7KGX N2469R caf@omen.com www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
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.
Hi Eduardo --
For longer term measurements (e.g., tau of an hour or more) a very nice
and inexpensive counter is the HP 5334A/B. I haven't looked recently,
but in the past I bought several off eBay for $150 or less. They are
fairly modern, compact (2U high), and don't have a noisy fan. They have
2ns time interval resolution in single shot mode, have a built-in 100
sample average, and have GPIB output.
You can use a Prologix (http://prologix.biz) USB - GPIB converter to
talk to the 5334 from John Miles' TimeLab software.
For longer measurements, it's usually easiest to use a PPS signal rather
than 5 MHz. There are a number of ways to derive that, but I'll put in
a shameless plug for the TAPR TADD-2 Mini
(http://tapr.org/kits_t2-mini.html) as an inexpensive PPS generator.
With that set-up and a GPS you will be able to measure the medium-term
stability and aging of your 5065A.
John
On 8/24/2012 4:40 PM, Edgardo Molina wrote:
Dear Chuck,
Thank you for your advise. Could you please kindly give me an example of such a GPIB counter with phase measurement? HP model number? My 5065a has been running with a beautiful green light for almost 72hrs. Glad to be back home and found it warm and stable.
Take care!
Regards,
Edgardo Molina
Dirección IPTEL
T : 55 55 55202444
M : 04455 20501854
Piensa en Bits SA de CV
Información anexa:
CONFIDENCIALIDAD DE INFORMACION
Este mensaje tiene carácter confidencial. Si usted no es el destinarario de este mensaje, le suplicamos se lo notifique al remitente mediante un correo electrónico y que borre el presente mensaje y sus anexos de su computadora sin retener una copia de los mismos. Queda estrictamente prohibido copiar este mensaje o hacer usode el para cualquier propósito o divulgar su en forma parcial o total su contenido. Gracias.
NON-DISCLOSURE OF INFORMATION
This email is strictly confidential and may also be privileged. If you are not the intended recipient please immediately advise the sender by replying to this e-mail and then deleting the message and its attachments from your computer without keeping a copy. It is strictly forbidden to copy it or use it for any purpose or disclose its contents to any third party. Thank you.
On Aug 22, 2012, at 2:03 AM, Chuck Forsberg WA7KGX N2469R caf@omen.com wrote:
If it is a really good Rb standard, consider adjusting the
standard yourself by measuring the phase over several
days once the standard has warmed up and settled down.
A GPIB counter with phase measurement is useful for this.
--
Chuck Forsberg WA7KGX N2469R caf@omen.com www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
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Dear John,
Thank you for such a detailed response. I will certainly look for Ebay opportunities on the models you kindly advised. I had the TAPR unit on my mind for several months but not sure about the way it could behave for these kind of measurements. I see this hobby will last for a long time. Other hobbies I have are amateur radio, seismology, radio and visual astronomy as well as astrophotography. I have seen large amounts of checks being used for hobbies that turn out to be great for learning. Nowadays I make a living out of what amateur radio digital communications taught to me decades ago. That is what hobbies are for me. Time and Frequency will certainly led me to better learning opportunities and a way to enjoy experimenting with the technology that was only a dream during my childhood.
I will take the time to research on the items you kindly mention. Thank you.
P.S. And also very important: Should I leave the HP 5065a "on" 24x7? Or do you recommend to treat it like a randomly used Cesium? I have a couple of FE cheap Rubidiums that won't hurt if they fail for disciplining purposes.
Regards,
Edgardo Molina
Dirección IPTEL
T : 55 55 55202444
M : 04455 20501854
Piensa en Bits SA de CV
Información anexa:
CONFIDENCIALIDAD DE INFORMACION
Este mensaje tiene carácter confidencial. Si usted no es el destinarario de este mensaje, le suplicamos se lo notifique al remitente mediante un correo electrónico y que borre el presente mensaje y sus anexos de su computadora sin retener una copia de los mismos. Queda estrictamente prohibido copiar este mensaje o hacer usode el para cualquier propósito o divulgar su en forma parcial o total su contenido. Gracias.
NON-DISCLOSURE OF INFORMATION
This email is strictly confidential and may also be privileged. If you are not the intended recipient please immediately advise the sender by replying to this e-mail and then deleting the message and its attachments from your computer without keeping a copy. It is strictly forbidden to copy it or use it for any purpose or disclose its contents to any third party. Thank you.
On Aug 24, 2012, at 3:53 PM, John Ackermann N8UR jra@febo.com wrote:
Hi Eduardo --
For longer term measurements (e.g., tau of an hour or more) a very nice and inexpensive counter is the HP 5334A/B. I haven't looked recently, but in the past I bought several off eBay for $150 or less. They are fairly modern, compact (2U high), and don't have a noisy fan. They have 2ns time interval resolution in single shot mode, have a built-in 100 sample average, and have GPIB output.
You can use a Prologix (http://prologix.biz) USB - GPIB converter to talk to the 5334 from John Miles' TimeLab software.
For longer measurements, it's usually easiest to use a PPS signal rather than 5 MHz. There are a number of ways to derive that, but I'll put in a shameless plug for the TAPR TADD-2 Mini (http://tapr.org/kits_t2-mini.html) as an inexpensive PPS generator.
With that set-up and a GPS you will be able to measure the medium-term stability and aging of your 5065A.
John
On 8/24/2012 4:40 PM, Edgardo Molina wrote:
Dear Chuck,
Thank you for your advise. Could you please kindly give me an example of such a GPIB counter with phase measurement? HP model number? My 5065a has been running with a beautiful green light for almost 72hrs. Glad to be back home and found it warm and stable.
Take care!
Regards,
Edgardo Molina
Dirección IPTEL
T : 55 55 55202444
M : 04455 20501854
Piensa en Bits SA de CV
Información anexa:
CONFIDENCIALIDAD DE INFORMACION
Este mensaje tiene carácter confidencial. Si usted no es el destinarario de este mensaje, le suplicamos se lo notifique al remitente mediante un correo electrónico y que borre el presente mensaje y sus anexos de su computadora sin retener una copia de los mismos. Queda estrictamente prohibido copiar este mensaje o hacer usode el para cualquier propósito o divulgar su en forma parcial o total su contenido. Gracias.
NON-DISCLOSURE OF INFORMATION
This email is strictly confidential and may also be privileged. If you are not the intended recipient please immediately advise the sender by replying to this e-mail and then deleting the message and its attachments from your computer without keeping a copy. It is strictly forbidden to copy it or use it for any purpose or disclose its contents to any third party. Thank you.
On Aug 22, 2012, at 2:03 AM, Chuck Forsberg WA7KGX N2469R caf@omen.com wrote:
If it is a really good Rb standard, consider adjusting the
standard yourself by measuring the phase over several
days once the standard has warmed up and settled down.
A GPIB counter with phase measurement is useful for this.
--
Chuck Forsberg WA7KGX N2469R caf@omen.com www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
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