[time-nuts] Special connector for Symmetricom X72 rubidium standard

2017-08-18 Thread Mark Sims 
The Mark II  (groan)...  changed power connector to a 2.1mm barrel jack,  added 
a 15uF or so filter cap,  added a PPS LED,  added a separate ground test point, 
 added series damping resistors for the ACMOS and FXO outputs (can be omitted 
to isolate these signals from the cable), etc.___
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Re: [time-nuts] PLL book 3rd edition

2017-08-18 Thread KA2WEU--- via time-nuts 
well,that is a good question. Knowing the publishing industry a yea after  
submission of the manuscript , so end of 2018 if we pull our act together  
...   
 
 
In a message dated 8/18/2017 6:31:37 P.M. Eastern Daylight Time,  
wb4...@wb4gcs.org writes:

When  will it be available??

Jim

wb4...@amsat.org



On  8/18/2017 4:17 PM, Dr. Ulrich L. Rohde via time-nuts wrote:
> Yes, and  there is a lot of useful material in place including CMOS  and 
related  new topics and update on numerical controlled oscillators . Thanks, 
 Ulrich
>
> Sent from my iPhone
>
>> On Aug 18,  2017, at 2:58 PM, David Bengtson   
wrote:
>>
>> That's good news. It would be good to have a  single reference for noise 
correlation.
>>
>>  Dave
>>
>>> On Tue, Aug 15, 2017 at 7:04 AM   wrote:
>>>Good Morning all  ,
>>>   
>>> yes , it became non trivial but  Enrico agreed to take over the old 
chapter 2. He thinks I do not use IEEE  norm  abbreviation and the noise 
correlation part did not exist 20 years  ago.And many new and important things  
So 
I thing we are  settled.
>>>   
>>> Thanks,  Ulrich
>>>   
>>> In a message dated  8/14/2017 9:10:45 P.M. Eastern Daylight Time, 
david.bengt...@gmail.com  writes:
>>> Ulrich - Did anyone ever agree to help update  this?
>>>
>>> Regards
>>>
>>>  Dave
>>>
 On Fri, Mar 11, 2016 at 3:13 PM,  KA2WEU--- via time-nuts 
  wrote:

 Why don't you look at the  outline to determine what might be  needed 
or
 missing  .

  Ulrich




  In a message dated 3/11/2016 11:09:51 A.M. Eastern Standard  Time,
 att...@kinali.ch  writes:

 Hoi   Ulrich,

 On Mon, 7 Mar 2016 19:52:58  -0500
 KA2WEU--- via time-nuts    wrote:

>  I have published the following   book
>
> " Microwave and Wireless  Synthesizers: Theory and  Design, Ulrich L.
  Rohde,
> John Wiley & Sons, August 1997,   ISBN  0-471-52019-5."
 [...]
>  As I am more or less now in  microwave technology and less in  PLL  
IC's,
 I
> hate to see this   standard textbook disappear Who can help or  
want
  to
> take  over?
 Da ich sowieso  für mich was grösseres über  Zeit/Frequenzmessung
  amzusammenstellen bin, und da PLL's grundsätzlich auch  dazu  gehören,
 wäre ich interessiert. Mein Problem dabei ist,  dass ich von  der
 praktischen Seite aber kaum eine  Erfahrung habe und für mich  alleine
 die Arbeit mit  ziemlicher Sicherheit zuviel wäre. Aber es wäre   
möglich,
 dass ich zum Beispiel mit Magnus zusammen und  vielleicht der Hilfe  
von
 ein paar anderen time-nuts  und/oder Enrico etwas auf die Beine stellen
  könnte.

 Was wären denn die Dinge,  welche für dich, in ein Update rein   
müssten?

 Gruess aus  Saarbrücken

 Attila  Kinali

 --
 It is  upon moral qualities that a  society is ultimately founded.  All
 the prosperity and technological  sophistication  in the world is of no
 use without that   foundation.
 -- Miss Matheson, The Diamond Age, Neil   Stephenson
  ___
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 To unsubscribe, go to  
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  and follow the instructions there.
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Re: [time-nuts] PLL book 3rd edition

2017-08-18 Thread Jim Sanford 

When will it be available??

Jim

wb4...@amsat.org



On 8/18/2017 4:17 PM, Dr. Ulrich L. Rohde via time-nuts wrote:

Yes, and there is a lot of useful material in place including CMOS  and related 
new topics and update on numerical controlled oscillators . Thanks, Ulrich

Sent from my iPhone


On Aug 18, 2017, at 2:58 PM, David Bengtson  wrote:

That's good news. It would be good to have a single reference for noise 
correlation.

Dave


On Tue, Aug 15, 2017 at 7:04 AM  wrote:
   Good Morning all ,
  
yes , it became non trivial but Enrico agreed to take over the old chapter 2. He thinks I do not use IEEE norm  abbreviation and the noise correlation part did not exist 20 years ago.And many new and important things  So I thing we are settled.
  
Thanks, Ulrich
  
In a message dated 8/14/2017 9:10:45 P.M. Eastern Daylight Time, david.bengt...@gmail.com writes:

Ulrich - Did anyone ever agree to help update this?

Regards

Dave


On Fri, Mar 11, 2016 at 3:13 PM, KA2WEU--- via time-nuts  
wrote:

Why don't you look at the outline to determine what might be  needed or
missing .

Ulrich




In a message dated 3/11/2016 11:09:51 A.M. Eastern Standard Time,
att...@kinali.ch writes:

Hoi  Ulrich,

On Mon, 7 Mar 2016 19:52:58 -0500
KA2WEU--- via time-nuts   wrote:


I have published the following  book

" Microwave and Wireless Synthesizers: Theory and  Design, Ulrich L.

Rohde,

John Wiley & Sons, August 1997,  ISBN  0-471-52019-5."

[...]

As I am more or less now in  microwave technology and less in  PLL IC's,

I

hate to see this  standard textbook disappear Who can help or  want

to

take  over?

Da ich sowieso für mich was grösseres über  Zeit/Frequenzmessung
amzusammenstellen bin, und da PLL's grundsätzlich auch  dazu gehören,
wäre ich interessiert. Mein Problem dabei ist, dass ich von  der
praktischen Seite aber kaum eine Erfahrung habe und für mich  alleine
die Arbeit mit ziemlicher Sicherheit zuviel wäre. Aber es wäre  möglich,
dass ich zum Beispiel mit Magnus zusammen und vielleicht der Hilfe  von
ein paar anderen time-nuts und/oder Enrico etwas auf die Beine stellen
könnte.

Was wären denn die Dinge, welche für dich, in ein Update rein  müssten?

Gruess aus Saarbrücken

Attila Kinali

--
It is upon moral qualities that a  society is ultimately founded. All
the prosperity and technological  sophistication in the world is of no
use without that  foundation.
-- Miss Matheson, The Diamond Age, Neil  Stephenson
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Re: [time-nuts] PLL book 3rd edition

2017-08-18 Thread Dr. Ulrich L. Rohde via time-nuts 
Yes, and there is a lot of useful material in place including CMOS  and related 
new topics and update on numerical controlled oscillators . Thanks, Ulrich

Sent from my iPhone

> On Aug 18, 2017, at 2:58 PM, David Bengtson  wrote:
> 
> That's good news. It would be good to have a single reference for noise 
> correlation. 
> 
> Dave
> 
>> On Tue, Aug 15, 2017 at 7:04 AM  wrote:
>>   Good Morning all ,
>>  
>> yes , it became non trivial but Enrico agreed to take over the old chapter 
>> 2. He thinks I do not use IEEE norm  abbreviation and the noise correlation 
>> part did not exist 20 years ago.And many new and important things  So I 
>> thing we are settled.
>>  
>> Thanks, Ulrich
>>  
>> In a message dated 8/14/2017 9:10:45 P.M. Eastern Daylight Time, 
>> david.bengt...@gmail.com writes:
>> Ulrich - Did anyone ever agree to help update this? 
>> 
>> Regards
>> 
>> Dave
>> 
>>> On Fri, Mar 11, 2016 at 3:13 PM, KA2WEU--- via time-nuts 
>>>  wrote:
>>> 
>>> Why don't you look at the outline to determine what might be  needed or
>>> missing .
>>> 
>>> Ulrich
>>> 
>>> 
>>> 
>>> 
>>> In a message dated 3/11/2016 11:09:51 A.M. Eastern Standard Time,
>>> att...@kinali.ch writes:
>>> 
>>> Hoi  Ulrich,
>>> 
>>> On Mon, 7 Mar 2016 19:52:58 -0500
>>> KA2WEU--- via time-nuts   wrote:
>>> 
>>> > I have published the following  book
>>> >
>>> > " Microwave and Wireless Synthesizers: Theory and  Design, Ulrich L.
>>> Rohde,
>>> > John Wiley & Sons, August 1997,  ISBN  0-471-52019-5."
>>> [...]
>>> > As I am more or less now in  microwave technology and less in  PLL IC's,
>>> I
>>> > hate to see this  standard textbook disappear Who can help or  want
>>> to
>>> > take  over?
>>> 
>>> Da ich sowieso für mich was grösseres über  Zeit/Frequenzmessung
>>> amzusammenstellen bin, und da PLL's grundsätzlich auch  dazu gehören,
>>> wäre ich interessiert. Mein Problem dabei ist, dass ich von  der
>>> praktischen Seite aber kaum eine Erfahrung habe und für mich  alleine
>>> die Arbeit mit ziemlicher Sicherheit zuviel wäre. Aber es wäre  möglich,
>>> dass ich zum Beispiel mit Magnus zusammen und vielleicht der Hilfe  von
>>> ein paar anderen time-nuts und/oder Enrico etwas auf die Beine stellen
>>> könnte.
>>> 
>>> Was wären denn die Dinge, welche für dich, in ein Update rein  müssten?
>>> 
>>> Gruess aus Saarbrücken
>>> 
>>> Attila Kinali
>>> 
>>> --
>>> It is upon moral qualities that a  society is ultimately founded. All
>>> the prosperity and technological  sophistication in the world is of no
>>> use without that  foundation.
>>> -- Miss Matheson, The Diamond Age, Neil  Stephenson
>>> ___
>>> 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.
>> 
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Re: [time-nuts] PLL book 3rd edition

2017-08-18 Thread David Bengtson 
That's good news. It would be good to have a single reference for noise
correlation.

Dave

On Tue, Aug 15, 2017 at 7:04 AM  wrote:

>   Good Morning all ,
>
> yes , it became non trivial but Enrico agreed to take over the old chapter
> 2. He thinks I do not use IEEE norm  abbreviation and the noise correlation
> part did not exist 20 years ago.And many new and important things  So I
> thing we are settled.
>
> Thanks, Ulrich
>
> In a message dated 8/14/2017 9:10:45 P.M. Eastern Daylight Time,
> david.bengt...@gmail.com writes:
>
> Ulrich - Did anyone ever agree to help update this?
>
> Regards
>
> Dave
>
> On Fri, Mar 11, 2016 at 3:13 PM, KA2WEU--- via time-nuts <
> time-nuts@febo.com> wrote:
>
>>
>> Why don't you look at the outline to determine what might be  needed or
>> missing .
>>
>> Ulrich
>>
>>
>>
>>
>> In a message dated 3/11/2016 11:09:51 A.M. Eastern Standard Time,
>> att...@kinali.ch writes:
>>
>> Hoi  Ulrich,
>>
>> On Mon, 7 Mar 2016 19:52:58 -0500
>> KA2WEU--- via time-nuts   wrote:
>>
>> > I have published the following  book
>> >
>> > " Microwave and Wireless Synthesizers: Theory and  Design, Ulrich L.
>> Rohde,
>> > John Wiley & Sons, August 1997,  ISBN  0-471-52019-5."
>> [...]
>> > As I am more or less now in  microwave technology and less in  PLL IC's,
>> I
>> > hate to see this  standard textbook disappear Who can help or  want
>> to
>> > take  over?
>>
>> Da ich sowieso für mich was grösseres über  Zeit/Frequenzmessung
>> amzusammenstellen bin, und da PLL's grundsätzlich auch  dazu gehören,
>> wäre ich interessiert. Mein Problem dabei ist, dass ich von  der
>> praktischen Seite aber kaum eine Erfahrung habe und für mich  alleine
>> die Arbeit mit ziemlicher Sicherheit zuviel wäre. Aber es wäre  möglich,
>> dass ich zum Beispiel mit Magnus zusammen und vielleicht der Hilfe  von
>> ein paar anderen time-nuts und/oder Enrico etwas auf die Beine stellen
>> könnte.
>>
>> Was wären denn die Dinge, welche für dich, in ein Update rein  müssten?
>>
>> Gruess aus Saarbrücken
>>
>> Attila Kinali
>>
>> --
>> It is upon moral qualities that a  society is ultimately founded. All
>> the prosperity and technological  sophistication in the world is of no
>> use without that  foundation.
>> -- Miss Matheson, The Diamond Age, Neil  Stephenson
>> ___
>> 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.
>>
>
>
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Re: [time-nuts] Special connector for Symmetricom X72 rubidium standard

2017-08-18 Thread Ed Palmer 

Chris,

Are you suggesting reusing the entire cable?  I wasn't suggesting that.  
The cable is over a meter long!  Even if the wiring was correct, which 
it isn't, I don't know if you could pull enough power through those 28 
guage wires even though they have multiple leads in parallel.  Either 
remove the cable from the IDC connector and replace with something more 
appropriate or cut the cable and leave maybe 10 cm. of cable attached to 
the connector.  Terminate as appropriate.


Datum understood that different situations require different solutions.  
They provided both Molex and 'circuit board' connectors for maximum 
flexibility.  Personally, I think the connector looks a little silly.  
It's so big compared to the X72.  But for some users, it might be perfect.


I'm looking forward to Mark's circuit boards.  I have one of the 
official boards that I've barnacled a few extra leads onto to bring out 
the signals that Datum didn't, but it's ugly.  A better solution would 
be welcome.


You asked for the connector, I provided a source.  As is typical with 
Time-Nuts equipment, some assembly is required.


Ed

On 2017-08-18 9:56 AM, Christoph Kopetzky  wrote:

Hello all,

here is the connection schematics from symmetricoms designer manual for
the X72.
So you see, that there is no need for an25 pin connector on the boards
side:)



If someone wants to download the X72 designer guide here it is:

http://www1.symmetricom.com/media/files/support/productmanual/man-x72.pdf

Regards

Chris


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[time-nuts] Special connector for Symmetricom X72 rubidium standard

2017-08-18 Thread Mark Sims 
Image of the first cut of the X72 interface board attached...

This board can be used stand-alone or connected to another soon-to-be board 
with RS-232, 4xBNC, and 2.1mm power connectors.  Hopefully the second board 
will also be able to connect to a SA22.c___
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Re: [time-nuts] Special connector for Symmetricom X72 rubidium standard

2017-08-18 Thread Christoph Kopetzky 

Hello all,

here is the connection schematics from symmetricoms designer manual for 
the X72.
So you see, that there is no need for an25 pin connector on the boards 
side :)




If someone wants to download the X72 designer guide here it is:

http://www1.symmetricom.com/media/files/support/productmanual/man-x72.pdf

Regards

Chris

Ed Palmer 
 
Thu, 17 Aug 2017 22:11:47 -0700 
 



I did some more work on the HP printer cable that uses this connector. 
Here's what I found:

1.  Pin 25 on the X72 connector is unconnected.
2. The connector is IDC. It's possible to open it up and add the extra 
lead, but like all IDC connectors, it's rather fragile. 3. Of the 25 
leads in the cable, 10 aren't connected through. However, the 
disconnect is at the DB-25 end. All 25 leads are wired into the X72 
end. 4. HP used both JST and Molex connectors. From the pictures I've 
found, I can't tell if the Molex connectors can be opened.

5.  The connector appears to be model DMX as shown here:
https://web.archive.org/web/20050313045224/http://www.jst-mfg.com:80/pdfE/eDMX.pdf
It looks like you have to order all the pieces seperately (?).
JST Connector: http://www.ebay.com/itm/182682094117 . Note the angled 
corners near the cable. Molex Connector: www.ebay.com/itm/182474574277 
. Note the corners are closer to square than on the JST connector. The 
ideal result would be to find a source of new,unused connectors, but 
these printer cables appear to be an alternative.

Ed

--

Regards

Christoph Kopetzky

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