Re: [time-nuts] UCCM GPSDO

[ziggy9+time-nuts]

Well, that actually helped a little. I dug a little further into the system 
documentation, and while there is only a smattering of information on the UCCM 
itself, I was able to find that the alarm parameters for them dictate a 
5.2-5.8v supply range, so THAT finally definitively answers one of the things 
that’s only been guessed at before. I also found a statement of ‘Stability: .02 
ppm’, with no other qualification. If I find anything more of interest I’ll 
post it.

Paul

> On Dec 5, 2016, at 12:58 PM, Ed Palmer  wrote:
> 
> The UCCM modules came from Samsung WiMAX radio systems.  It looks like they 
> OEM'd the boards from both Trimble and Symmetricom.  "UCCM = Universal Core 
> Clock Module"  UCCM-P = "Universal Core Clock Module - Plus".  I managed to 
> find a system description document that mentions it two or three times.  No 
> details, though.
> 
> Ed
> 
> On 2016-12-05 11:00 AM, Larry McDavid  wrote:
>> Does anyone know the origin of the "UCCM" designation for the Trimble
>> GPSDO boards recently popular here?
>> 
>> Is "UCCM" a valid model number, is it an acronym or is it something else?
>> 
>> I've packaged several of these Trimble boards and I've seen about four
>> others, none of which was marked "UCCM." I've seen one on-line picture
>> of a packaged board that shows a separate label with "UCCM" marked.
>> 
>> GPSCon already supports these "UCCM" boards and the next release of Lady
>> Heather is expected to support them also, so there is some acceptance of
>> this "UCCM" designation. But, what is the origin of this term and is it
>> valid?
>> 
>> -- Best wishes, Larry McDavid W6FUB Anaheim, California (SE of Los Angeles, 
>> near Disneyland)
> 
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Re: [time-nuts] UCCM GPSDO

[John Allen]

Almost every PC Board made in the last few decades is UL 94V-0.

John K1AE

-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Van Horn, David
Sent: Monday, December 05, 2016 3:35 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] UCCM GPSDO

Yes.

-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Glen Hoag
Sent: Monday, December 5, 2016 12:14 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] UCCM GPSDO

94V-0 is a UL flame retardancy test, if I recall correctly. 

Sent from my iPhone

> On Dec 5, 2016, at 12:34, Tim Shoppa <tsho...@gmail.com> wrote:
> 
> I was trying to guess what acronym (or backronym) UCCM might stand for.
> Then I did an E-bay search and found all the PC boards with "94V-0" in 
> their part numbers for sale E-bay. Ha! Literally thousands of hits.
> 
> Tim N3QE
> 
>> On Mon, Dec 5, 2016 at 7:42 AM, Bob Camp <kb...@n1k.org> wrote:
>> 
>> Hi
>> 
>> I’d bet it’s an inventory label put on by their customer. If so a 
>> good bet would be something like China Unicom.
>> 
>> Bob
>> 
>>> On Dec 4, 2016, at 5:50 PM, Larry McDavid <lmcda...@lmceng.com> wrote:
>>> 
>>> Does anyone know the origin of the "UCCM" designation for the 
>>> Trimble
>> GPSDO boards recently popular here?
>>> 
>>> Is "UCCM" a valid model number, is it an acronym or is it something else?
>>> 
>>> I've packaged several of these Trimble boards and I've seen about 
>>> four
>> others, none of which was marked "UCCM." I've seen one on-line 
>> picture of a packaged board that shows a separate label with "UCCM" marked.
>>> 
>>> GPSCon already supports these "UCCM" boards and the next release of 
>>> Lady
>> Heather is expected to support them also, so there is some acceptance 
>> of this "UCCM" designation. But, what is the origin of this term and 
>> is it valid?
>>> 
>>> --
>>> Best wishes,
>>> 
>>> Larry McDavid W6FUB
>>> Anaheim, California  (SE of Los Angeles, near Disneyland) 
>>> ___
>>> 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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>> the instructions there.
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Re: [time-nuts] UCCM GPSDO

[Van Horn, David]

Yes.

-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Glen Hoag
Sent: Monday, December 5, 2016 12:14 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] UCCM GPSDO

94V-0 is a UL flame retardancy test, if I recall correctly. 

Sent from my iPhone

> On Dec 5, 2016, at 12:34, Tim Shoppa <tsho...@gmail.com> wrote:
> 
> I was trying to guess what acronym (or backronym) UCCM might stand for.
> Then I did an E-bay search and found all the PC boards with "94V-0" in 
> their part numbers for sale E-bay. Ha! Literally thousands of hits.
> 
> Tim N3QE
> 
>> On Mon, Dec 5, 2016 at 7:42 AM, Bob Camp <kb...@n1k.org> wrote:
>> 
>> Hi
>> 
>> I’d bet it’s an inventory label put on by their customer. If so a 
>> good bet would be something like China Unicom.
>> 
>> Bob
>> 
>>> On Dec 4, 2016, at 5:50 PM, Larry McDavid <lmcda...@lmceng.com> wrote:
>>> 
>>> Does anyone know the origin of the "UCCM" designation for the 
>>> Trimble
>> GPSDO boards recently popular here?
>>> 
>>> Is "UCCM" a valid model number, is it an acronym or is it something else?
>>> 
>>> I've packaged several of these Trimble boards and I've seen about 
>>> four
>> others, none of which was marked "UCCM." I've seen one on-line 
>> picture of a packaged board that shows a separate label with "UCCM" marked.
>>> 
>>> GPSCon already supports these "UCCM" boards and the next release of 
>>> Lady
>> Heather is expected to support them also, so there is some acceptance 
>> of this "UCCM" designation. But, what is the origin of this term and 
>> is it valid?
>>> 
>>> --
>>> Best wishes,
>>> 
>>> Larry McDavid W6FUB
>>> Anaheim, California  (SE of Los Angeles, near Disneyland) 
>>> ___
>>> 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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>> the instructions there.
>> 
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Re: [time-nuts] UCCM GPSDO

[Glen Hoag]

94V-0 is a UL flame retardancy test, if I recall correctly. 

Sent from my iPhone

> On Dec 5, 2016, at 12:34, Tim Shoppa  wrote:
> 
> I was trying to guess what acronym (or backronym) UCCM might stand for.
> Then I did an E-bay search and found all the PC boards with "94V-0" in
> their part numbers for sale E-bay. Ha! Literally thousands of hits.
> 
> Tim N3QE
> 
>> On Mon, Dec 5, 2016 at 7:42 AM, Bob Camp  wrote:
>> 
>> Hi
>> 
>> I’d bet it’s an inventory label put on by their customer. If so a good bet
>> would be something
>> like China Unicom.
>> 
>> Bob
>> 
>>> On Dec 4, 2016, at 5:50 PM, Larry McDavid  wrote:
>>> 
>>> Does anyone know the origin of the "UCCM" designation for the Trimble
>> GPSDO boards recently popular here?
>>> 
>>> Is "UCCM" a valid model number, is it an acronym or is it something else?
>>> 
>>> I've packaged several of these Trimble boards and I've seen about four
>> others, none of which was marked "UCCM." I've seen one on-line picture of a
>> packaged board that shows a separate label with "UCCM" marked.
>>> 
>>> GPSCon already supports these "UCCM" boards and the next release of Lady
>> Heather is expected to support them also, so there is some acceptance of
>> this "UCCM" designation. But, what is the origin of this term and is it
>> valid?
>>> 
>>> --
>>> Best wishes,
>>> 
>>> Larry McDavid W6FUB
>>> Anaheim, California  (SE of Los Angeles, near Disneyland)
>>> ___
>>> 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.
>> 
>> ___
>> 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] UCCM GPSDO

[Tim Shoppa]

I was trying to guess what acronym (or backronym) UCCM might stand for.
Then I did an E-bay search and found all the PC boards with "94V-0" in
their part numbers for sale E-bay. Ha! Literally thousands of hits.

Tim N3QE

On Mon, Dec 5, 2016 at 7:42 AM, Bob Camp  wrote:

> Hi
>
> I’d bet it’s an inventory label put on by their customer. If so a good bet
> would be something
> like China Unicom.
>
> Bob
>
> > On Dec 4, 2016, at 5:50 PM, Larry McDavid  wrote:
> >
> > Does anyone know the origin of the "UCCM" designation for the Trimble
> GPSDO boards recently popular here?
> >
> > Is "UCCM" a valid model number, is it an acronym or is it something else?
> >
> > I've packaged several of these Trimble boards and I've seen about four
> others, none of which was marked "UCCM." I've seen one on-line picture of a
> packaged board that shows a separate label with "UCCM" marked.
> >
> > GPSCon already supports these "UCCM" boards and the next release of Lady
> Heather is expected to support them also, so there is some acceptance of
> this "UCCM" designation. But, what is the origin of this term and is it
> valid?
> >
> > --
> > Best wishes,
> >
> > Larry McDavid W6FUB
> > Anaheim, California  (SE of Los Angeles, near Disneyland)
> > ___
> > 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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> mailman/listinfo/time-nuts
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>
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Re: [time-nuts] UCCM GPSDO

[Ed Palmer]

The UCCM modules came from Samsung WiMAX radio systems.  It looks like 
they OEM'd the boards from both Trimble and Symmetricom.  "UCCM = 
Universal Core Clock Module"  UCCM-P = "Universal Core Clock Module - 
Plus".  I managed to find a system description document that mentions it 
two or three times.  No details, though.


Ed

On 2016-12-05 11:00 AM, Larry McDavid  wrote:

Does anyone know the origin of the "UCCM" designation for the Trimble
GPSDO boards recently popular here?

Is "UCCM" a valid model number, is it an acronym or is it something else?

I've packaged several of these Trimble boards and I've seen about four
others, none of which was marked "UCCM." I've seen one on-line picture
of a packaged board that shows a separate label with "UCCM" marked.

GPSCon already supports these "UCCM" boards and the next release of Lady
Heather is expected to support them also, so there is some acceptance of
this "UCCM" designation. But, what is the origin of this term and is it
valid?

-- Best wishes, Larry McDavid W6FUB Anaheim, California (SE of Los 
Angeles, near Disneyland)


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Re: [time-nuts] UCCM GPSDO

[Bob Camp]

Hi

I’d bet it’s an inventory label put on by their customer. If so a good bet 
would be something 
like China Unicom. 

Bob

> On Dec 4, 2016, at 5:50 PM, Larry McDavid  wrote:
> 
> Does anyone know the origin of the "UCCM" designation for the Trimble GPSDO 
> boards recently popular here?
> 
> Is "UCCM" a valid model number, is it an acronym or is it something else?
> 
> I've packaged several of these Trimble boards and I've seen about four 
> others, none of which was marked "UCCM." I've seen one on-line picture of a 
> packaged board that shows a separate label with "UCCM" marked.
> 
> GPSCon already supports these "UCCM" boards and the next release of Lady 
> Heather is expected to support them also, so there is some acceptance of this 
> "UCCM" designation. But, what is the origin of this term and is it valid?
> 
> -- 
> Best wishes,
> 
> Larry McDavid W6FUB
> Anaheim, California  (SE of Los Angeles, near Disneyland)
> ___
> 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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Re: [time-nuts] UCCM GPSDO

[Tim Lister]

On Sun, Dec 4, 2016 at 3:04 PM, Bryan _  wrote:
> I think the designation "UCCM" actually applies to the Symmetricom GPSDO 
> boards. Since most of these tend to come salvaged from China, tongue in cheek 
> I suspect "Unusable, Crushed, Cr_p, Mangled"
>
>
> Do the Trimble units report UCCM from the serial port?

Mine does and it was sold as a 'Trimble Inside'... Lady Heather
identifies it as a Trimble board and it doesn't seem to lose the
survey position on power-off, which I believe is a feature of the
Symmetricom version of the boards. I think the Symmetricom boards also
report 'UCCM-P >' as their prompt (based on the eevblog thread) which
mine doesn't (just 'UCCM >').

>
> -=Bryan=-
>

Cheers,
Tim
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Re: [time-nuts] UCCM GPSDO

[William H. Fite]

Unbelievably Crude Clock Mechanism:)

On Sunday, December 4, 2016, Bryan _ <bpl...@outlook.com> wrote:

> I think the designation "UCCM" actually applies to the Symmetricom GPSDO
> boards. Since most of these tend to come salvaged from China, tongue in
> cheek I suspect "Unusable, Crushed, Cr_p, Mangled"
>
>
> Do the Trimble units report UCCM from the serial port?
>
>
>
> -=Bryan=-
>
>
>
>
> 
> From: time-nuts <time-nuts-boun...@febo.com <javascript:;>> on behalf of
> Tim Lister <lister...@gmail.com <javascript:;>>
> Sent: December 4, 2016 3:00 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] UCCM GPSDO
>
> On Sun, Dec 4, 2016 at 2:50 PM, Larry McDavid <lmcda...@lmceng.com
> <javascript:;>> wrote:
> > Does anyone know the origin of the "UCCM" designation for the Trimble
> GPSDO
> > boards recently popular here?
> >
> > Is "UCCM" a valid model number, is it an acronym or is it something else?
> >
> > I've packaged several of these Trimble boards and I've seen about four
> > others, none of which was marked "UCCM." I've seen one on-line picture
> of a
> > packaged board that shows a separate label with "UCCM" marked.
> >
> > GPSCon already supports these "UCCM" boards and the next release of Lady
> > Heather is expected to support them also, so there is some acceptance of
> > this "UCCM" designation. But, what is the origin of this term and is it
> > valid?
>
> That's what the command prompt says when you connect to it over serial
> and it shows up in various places in response to commands such as
> SYST:STAT? I haven't taken my reboxed GPSDO apart to see if it says
> UCCM anywhere else on the board.
>
> >
> > --
> > Best wishes,
> >
> > Larry McDavid W6FUB
>
> Cheers,
> Tim
> ___
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> time and frequency measurement and related topics. To see the collection of
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>
>
>
> and follow the instructions there.
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-- 
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Re: [time-nuts] UCCM GPSDO

[Bryan _]

I think the designation "UCCM" actually applies to the Symmetricom GPSDO 
boards. Since most of these tend to come salvaged from China, tongue in cheek I 
suspect "Unusable, Crushed, Cr_p, Mangled"


Do the Trimble units report UCCM from the serial port?



-=Bryan=-





From: time-nuts <time-nuts-boun...@febo.com> on behalf of Tim Lister 
<lister...@gmail.com>
Sent: December 4, 2016 3:00 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] UCCM GPSDO

On Sun, Dec 4, 2016 at 2:50 PM, Larry McDavid <lmcda...@lmceng.com> wrote:
> Does anyone know the origin of the "UCCM" designation for the Trimble GPSDO
> boards recently popular here?
>
> Is "UCCM" a valid model number, is it an acronym or is it something else?
>
> I've packaged several of these Trimble boards and I've seen about four
> others, none of which was marked "UCCM." I've seen one on-line picture of a
> packaged board that shows a separate label with "UCCM" marked.
>
> GPSCon already supports these "UCCM" boards and the next release of Lady
> Heather is expected to support them also, so there is some acceptance of
> this "UCCM" designation. But, what is the origin of this term and is it
> valid?

That's what the command prompt says when you connect to it over serial
and it shows up in various places in response to commands such as
SYST:STAT? I haven't taken my reboxed GPSDO apart to see if it says
UCCM anywhere else on the board.

>
> --
> Best wishes,
>
> Larry McDavid W6FUB

Cheers,
Tim
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and follow the instructions there.
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Re: [time-nuts] UCCM GPSDO

[Tim Lister]

On Sun, Dec 4, 2016 at 2:50 PM, Larry McDavid  wrote:
> Does anyone know the origin of the "UCCM" designation for the Trimble GPSDO
> boards recently popular here?
>
> Is "UCCM" a valid model number, is it an acronym or is it something else?
>
> I've packaged several of these Trimble boards and I've seen about four
> others, none of which was marked "UCCM." I've seen one on-line picture of a
> packaged board that shows a separate label with "UCCM" marked.
>
> GPSCon already supports these "UCCM" boards and the next release of Lady
> Heather is expected to support them also, so there is some acceptance of
> this "UCCM" designation. But, what is the origin of this term and is it
> valid?

That's what the command prompt says when you connect to it over serial
and it shows up in various places in response to commands such as
SYST:STAT? I haven't taken my reboxed GPSDO apart to see if it says
UCCM anywhere else on the board.

>
> --
> Best wishes,
>
> Larry McDavid W6FUB

Cheers,
Tim
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[time-nuts] UCCM GPSDO

[Larry McDavid]

Does anyone know the origin of the "UCCM" designation for the Trimble 
GPSDO boards recently popular here?


Is "UCCM" a valid model number, is it an acronym or is it something else?

I've packaged several of these Trimble boards and I've seen about four 
others, none of which was marked "UCCM." I've seen one on-line picture 
of a packaged board that shows a separate label with "UCCM" marked.


GPSCon already supports these "UCCM" boards and the next release of Lady 
Heather is expected to support them also, so there is some acceptance of 
this "UCCM" designation. But, what is the origin of this term and is it 
valid?


--
Best wishes,

Larry McDavid W6FUB
Anaheim, California  (SE of Los Angeles, near Disneyland)
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