Re: [time-nuts] 2016 European Frequency and Time Seminar

[Magnus Danielson]

Good afternoon,

On 02/09/2016 10:41 AM, Attila Kinali wrote:

Good morning,

Enrico Rubiola just send an email out, announcing the EFTS this summer.
It's a one week seminar that covers all important parts of precision
time and frequency measurement. Magnus and me were there last year
and had lots of fun. Including some late night discussion sessions
on parkinglots :-)

For more information please read the webpage:
  http://efts.eu


Agree with Attila, it's a week full of knowledge and fun.
At lunch, Enrico is happy to give a private lecture on a particular 
topic, using the paper-napkins as his notepad.


We enjoyed it, and that includes the late night parkinglot session about 
different counters and details. :)


For those that need to get better insight to various aspects of 
timekeeping as they do their PhD or from the industry, this is a great 
opportunity.


Cheers,
Magnus
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Re: [time-nuts] http://www.arrl.org/news/ieee-microwave-theory-and-techniques-society-honors-ulr

[Magnus Danielson]

Dear Ulrich,

On 02/09/2016 02:39 AM, ka2...@aol.com wrote:

http://www.microwavejournal.com/articles/25845-dr-ulrich-l-rohde-receives-2016-microwave-application-award

My team and I will continue to work on ultra-low noise oscillators by
applying "Möbius Strips and Metamaterial Symmetry: Theory and
Applications" for mm wave applications and other techniques using
different resonators like  multiple coupled resonators and my special
hobby low noise crystal oscillators but not as a product but
understanding the complete physics . Ulrich



Congratulation on the award!

Look forward to see the progress, as well as your presentation at IFCS.

Best Regards,
Magnus
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[time-nuts] 2016 European Frequency and Time Seminar

[Attila Kinali]

Good morning,

Enrico Rubiola just send an email out, announcing the EFTS this summer.
It's a one week seminar that covers all important parts of precision
time and frequency measurement. Magnus and me were there last year
and had lots of fun. Including some late night discussion sessions
on parkinglots :-)

For more information please read the webpage:
 http://efts.eu

Attila Kinali

-- 
Reading can seriously damage your ignorance.
-- unknown
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[time-nuts] Aeroflex IFR 3413

[Clint Jay]

I've acquired from eBay a 'faulty' Aeroflex IFR 3413 signal generator with
Option 001 (no attenuator) and an error 509 which I think would indicate
it's had power applied to the output port.

Does anyone have service information for these generators?

I'm also looking for firmware upgrades and any experience of adding
'options' I.E. is it possible to add the mechanical or electronic
attenuator options ?

-- 
Clint.

*No trees were harmed in the sending of this mail. However, a large number
of electrons were greatly inconvenienced.*
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Re: [time-nuts] Aeroflex IFR 3413

[Bob Albert via time-nuts]

I think there is an Aeroflex or IFR yahoo group.  But it doesn't see much 
activity.
I own an IFR spectrum analyzer and would like to connect with others who have 
solved problems and found new uses, etc.
Bob
 

On Tuesday, February 9, 2016 1:02 PM, Clint Jay  wrote:
 

 I've acquired from eBay a 'faulty' Aeroflex IFR 3413 signal generator with
Option 001 (no attenuator) and an error 509 which I think would indicate
it's had power applied to the output port.

Does anyone have service information for these generators?

I'm also looking for firmware upgrades and any experience of adding
'options' I.E. is it possible to add the mechanical or electronic
attenuator options ?

-- 
Clint.

*No trees were harmed in the sending of this mail. However, a large number
of electrons were greatly inconvenienced.*
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Re: [time-nuts] Aeroflex IFR 3413

[Stéphane Rey]

Hi Clint,

I do not know this instrument, however let me share my current 
experience with my IFR2945.
I've found a faulty board to be part of the main PLL. The failled 
component was an old CPLD. I've requested a quotation from both the CPLD 
and the full board.
The CPLD was 90 euros with 9 months of leadtime (!) and the full board 
460€ with 1 month. I've bought the full board.

The company is actually Cobham Wireless who owns Marconi Aeroflex now.
After 3 months nothing yet received. I had to complain.
I finally got the board after 3.5 months. Put in the instrument and 
still not working. New release of the board with FPGA instead of CPLD. 
The FPGA outputs are not doing anything. Ask to the support again and it 
appears the board has not been programmed/tested... but they don't want 
to send me the code for programming (I've the tools at work). I have to 
send back my board
After 3 weeks they tell me I should have ordered the slash T version 
(which costs 30% more)  Well guys.. you made the quotation for that 
board... What could I do with a non programmed board 
Meanwhile my support guy tells me the facility he works in France... is 
going to be closed suddenly. By the way they're all fired.
Cobham Wireless is under restructuration and they're closing some sites. 
My board has been lost !
Finally apparently they've sent me a new board, I hope programmed this 
time and I'm waiting for it...


According to the very nice french support guy I was in contact with, in 
IFR2945/2965 there are very few components like that which are 
programmable for which this is no option other than Cobham support but 
at the moment it looks like an incredible mess there.


Good luck
Cheers
Stephane

-- Message d'origine --
De : "Clint Jay" 
À : time-nuts@febo.com
Envoyé 09/02/2016 20:58:08
Objet : [time-nuts] Aeroflex IFR 3413

I've acquired from eBay a 'faulty' Aeroflex IFR 3413 signal generator 
with
Option 001 (no attenuator) and an error 509 which I think would 
indicate

it's had power applied to the output port.

Does anyone have service information for these generators?

I'm also looking for firmware upgrades and any experience of adding
'options' I.E. is it possible to add the mechanical or electronic
attenuator options ?

--
Clint.

*No trees were harmed in the sending of this mail. However, a large 
number

of electrons were greatly inconvenienced.*
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Re: [time-nuts] Z3801 Update with VP-Oncore 8Ch receiver

[Art Sepin]

The first 8 channel, B3 series Motorola VP Oncore was introduced in late 1996 
and was followed by the B4, which included a better RF front end filter, and, 
finally, the B8 which used a revised PC Board layout for lower noise operation. 
 All of these 8 channel VP Oncore receivers included a backward compatible 6 
channel mode. See the VP Oncore Command Reference here:
 http://www.synergy-gps.com/images/stories/pdf/vpcommands.pdf

The Synergy Adaptor Board product, with an M12+ or M12M GPS receiver, will not 
function in products expecting a 6 or 8 channel message. That’s because HP, and 
products from other manufacturers, are sending either a 6 channel @@Ba command 
or an 8 channel @@Ea 8 channel command to the receiver and, depending on the 
specific command sent, are expecting either a 6 channel @@Ba or an 8 channel 
@@Ea reply message. The 12 channel M12+ and M12M receivers do not have a 6 or 
an 8 channel backward compatible mode so the @@Ha 12 channel messages are not 
requested and are not recognized by HP and other timing products.

When used with an Adaptor Board, Synergy’s new u-Blox based SSR-6Tf GPS 
receiver board is mechanically and electrically plug-compatible with the older 
VP Oncore units. It also contains important 12 channel Motorola binary timing 
messages and some of the basic 6 and 8 channel command\reply messages needed 
for 6 and 8 channel based timing products (HP and others). Firmware updates for 
6, 8 and 12 channel messages will also be available. Until Synergy's new web 
site is up and running, we can respond to SSR-6Tf questions or comments off 
list.

For VP Oncore receivers that don't seem to work, the B3, B4 and B8 VP Oncore 
receivers included a power saving idle mode for navigation applications. On 
occasion, a timing user would call to say their VP Oncore was not working. 
Nearly always the cure was to use the @@Cg Position Fix\Idle Mode Select 
command to put the receiver back to Position Fix Mode.  

Art Sepin

-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Frederick Bray
Sent: Sunday, February 07, 2016 7:34 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Z3801 Update with VP-Oncore 8Ch receiver

This brings up a question that I have been wondering about.  Has anyone tried 
using one of the Synergy M12/adaptor board assemblies as an update in the Z3801 
or similar unit?  If the original firmware just ignores the extra data, perhaps 
the Synergy unit might work? They are quite inexpensive on the used market.

See:

https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fwww.synergy-gps.com%2findex.php%3foption%3dcom_content%26task%3dview%26id%3d173%26Itemid%3d115=01%7c01%7cart%40synergy-gps.com%7cb4b40e483fe146c6a36608d3303c6ff1%7cc81f9fdec0e04d8c95779afaa0cad9ed%7c1=7Nk8Dj%2bE2H6yNAm2tWXnvCetomDrfxb1rITrKgxRgRg%3d

As a further upgrade, might it be possible to replace the M12 receiver unit on 
the Synergy board with a Jackson Labs M12M replacement receiver?  While the 
additional data would be lost / ignored, the superior characteristics of the 
Jackson Labs unit could prove helpful.

Thanks for any information.

Fred Bray
KE6CD
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Re: [time-nuts] 2016 European Frequency and Time Seminar

[Poul-Henning Kamp]

In message <56ba2a53.2060...@rubidium.dyndns.org>, Magnus Danielson writes:

>> For more information please read the webpage:
>>   http://efts.eu
>
>Agree with Attila, it's a week full of knowledge and fun.

Now, if you could persuade them to do a flea-market also... :->

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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Re: [time-nuts] 2016 European Frequency and Time Seminar

[Samuel Ritchie]

Attila

Thank you for keeping us informed.  I live in hope that one day I will be able 
to attend the EFIS - unfortunately this year it coincides with the meeting of 
ITU Study Group 3.

Samuel


-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Attila Kinali
Sent: 09 February 2016 09:42
To: time-nuts@febo.com
Subject: [time-nuts] 2016 European Frequency and Time Seminar

Good morning,

Enrico Rubiola just send an email out, announcing the EFTS this summer.
It's a one week seminar that covers all important parts of precision time and 
frequency measurement. Magnus and me were there last year and had lots of fun. 
Including some late night discussion sessions on parkinglots :-)

For more information please read the webpage:
 http://efts.eu

Attila Kinali

--
Reading can seriously damage your ignorance.
-- unknown
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Re: [time-nuts] update on Z3801A repairs

[paul swed]

Congratulations Dave very good to hear its back in the land of the living.
Looking forward to the additional thread.
Regards
Paul
WB8TSL

On Sun, Feb 7, 2016 at 12:37 PM, Artek Manuals 
wrote:

> I had reported earlier that the power supply went south in my Z3801A ( and
> then the receiver) became a suspect as well
>
> In the final analysis I am not sure which went first the Z3801 supply or
> the external power supply I use to power the unit.Both have a clear
> failures.But both were down creating a little confusion at first about the
> problem
>
> The external supply has an adjustable current limit setting which is now
> nonadjustable at 150ma..have not dug into that one yet
>
> Once I figured out that my external supply was bust I switched to another
> supply I have here in the lab to find that the internal Z3801A supply still
> had a problem. As I noted in an earlier post there is a "pre processing"
> section  which I am told was really a over-voltage protection section and
> the DC-DC converter section. The problem fortunately is in the the voltage
> protection section and I have not bothered to run it down.Instead I  have
> reverted for now to bypassing the front end of the supply and am now
> feeding 36V directly into the DC/DC converter an easy thing to do at the
> output of L1 with a simple and convenient trace cut. SO not sure which
> supply took out which supply but for now the unit is powered on another
> supply .with the overkil / over-voltage circuit bypassed
>
> A few days after I started things back up the receiver began to error out.
> At first it would  error after 8 hours, then after an hour and now it only
> lasts about 20 minutes. Again no obvious suspects on the receiver board in
> terms of smoked caps etc. At that point another list member who has a cache
> of Motorola Oncore boards that I knew well from another list offered to
> send me a replacement Moto receiver, which turned out to be plug and play
> compatible. the new-used receiver fixed the problem in spades so we are
> back with a working Z3801A. I will cover the receiver update from an Moto
> 6CH Oncore to a 8CH VP Oncore in a separate post
> --
> Dave
> manu...@artekmanuals.com
> www.ArtekManuals.com
>
> ---
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