GB

Gregory Beat

Wed, Jan 31, 2024 3:51 PM

The Synergy SSR-series UT+/VP Single Board Replcement
https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-board-replacement/
does have a modern u-processor with ability to upgrade its firmware (future-proof).

The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers.

WHY BUY or UPGRADE ?

Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver.
Modern sensitive receiver (ublox), better ADEV observed and graphed
Faster GPS Lock, “Best of N” sats passed to GPSDO.
Fix the annoying Week Number Roll Over (WNRO) issue.
Future Proofing with ability to upgrade u-processor firmware.
—
Symmetricom 58503B
In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes).
—
I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board.

Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware.

As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands.

greg, w9gb
chicago

Date: Tue, 30 Jan 2024 09:58:43 -0500
From: Bob Camp kb8tq@n1k.org
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A
To: time-nuts@lists.febo.com

Hi

Just a random comment …..

The Ublox series parts speak a very different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task.

Bob

The Synergy SSR-series UT+/VP Single Board Replcement https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-board-replacement/ does have a modern u-processor with ability to upgrade its firmware (future-proof). The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers. WHY BUY or UPGRADE ? * Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver. * Modern sensitive receiver (ublox), better ADEV observed and graphed * Faster GPS Lock, “Best of N” sats passed to GPSDO. * Fix the annoying Week Number Roll Over (WNRO) issue. * Future Proofing with ability to upgrade u-processor firmware. — Symmetricom 58503B In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes). — I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board. Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware. As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands. greg, w9gb chicago == Date: Tue, 30 Jan 2024 09:58:43 -0500 From: Bob Camp <kb8tq@n1k.org> Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A To: <time-nuts@lists.febo.com> Hi Just a random comment ….. The Ublox series parts speak a *very* different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task. Bob

LM

Larry McDavid

Thu, Feb 1, 2024 12:30 AM

Greg, do you know if Synergy is actively selling this board and how?

I ask because I sent them an inquiry from their website message system
and have no reply.

I have several HP Z-3801A units and have had one receiver fail. I would
like to have a replacement, especially an upgraded one. Several here
have reported good results with the Synergy board but all those were
apparently ordered long ago and just recently delivered. I'm wondering
if the board is an active product...

Best wishes,

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

On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote:

The Synergy SSR-series UT+/VP Single Board Replcement
https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-board-replacement/
does have a modern u-processor with ability to upgrade its firmware (future-proof).

The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers.

WHY BUY or UPGRADE ?

Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver.
Modern sensitive receiver (ublox), better ADEV observed and graphed
Faster GPS Lock, “Best of N” sats passed to GPSDO.
Fix the annoying Week Number Roll Over (WNRO) issue.
Future Proofing with ability to upgrade u-processor firmware.
—
Symmetricom 58503B
In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes).
—
I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board.

Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware.

As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands.

greg, w9gb
chicago

Date: Tue, 30 Jan 2024 09:58:43 -0500
From: Bob Camp kb8tq@n1k.org
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A
To: time-nuts@lists.febo.com

Hi

Just a random comment …..

The Ublox series parts speak a very different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task.

Bob

time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe send an email to time-nuts-leave@lists.febo.com

Greg, do you know if Synergy is actively selling this board and how? I ask because I sent them an inquiry from their website message system and have no reply. I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product... Best wishes, Larry McDavid W6FUB Anaheim, California (SE of Los Angeles, near Disneyland) On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote: > The Synergy SSR-series UT+/VP Single Board Replcement > https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-board-replacement/ > does have a modern u-processor with ability to upgrade its firmware (future-proof). > > The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers. > > WHY BUY or UPGRADE ? > * Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver. > * Modern sensitive receiver (ublox), better ADEV observed and graphed > * Faster GPS Lock, “Best of N” sats passed to GPSDO. > * Fix the annoying Week Number Roll Over (WNRO) issue. > * Future Proofing with ability to upgrade u-processor firmware. > — > Symmetricom 58503B > In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes). > — > I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board. > > Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware. > > As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands. > > greg, w9gb > chicago > == > Date: Tue, 30 Jan 2024 09:58:43 -0500 > From: Bob Camp <kb8tq@n1k.org> > Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A > To: <time-nuts@lists.febo.com> > > Hi > > Just a random comment ….. > > The Ublox series parts speak a *very* different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task. > > Bob > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com >

BJ

Brian Justin, WA1ZMS

Thu, Feb 1, 2024 10:47 PM

Gentlemen-

I contacted Synergy yesterday and while the person I spoke with could not provide me with a lead-time…..(the demand has been high)…..they are accepting orders if you contact them via e-mail or phone. For 1 to 10 pieces, the price is just under $200 ($191 if I recall) plus shipping.

If a TimeNut were to broker a large order, I’m sure a few dollars could be saved per receiver but that just adds complexity and it may not save much at all after the man-hours trying to coordinate any savings.

I may order one myself just try it in one of my Z3801A units at the house, but at that price I can live off salvaging a few of the original receivers as a few other non-HP products also used the same original GPS receiver and so I have my personal spares.

The current Synergy part number for the Z3801A and Z3805A is listed as model: SSR-VP1 with a Synergy part number of 16U54523G-B1.

NOTE: Synergy advised me they will be updating their data-sheet for the entire family of these new receivers and it should be on their website soon. So if you do order one, be certain to verify with sales the make and model of GPS standard (ie: Z3801A) you intend to use their newest receiver in. That will hopefully avoid any future changes in their part numbers if that happens.

Regards,
-Brian, WA1ZMS
iPhone

On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts time-nuts@lists.febo.com wrote:

Greg, do you know if Synergy is actively selling this board and how?

I ask because I sent them an inquiry from their website message system and have no reply.

I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product...

Best wishes,

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

On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote:
The Synergy SSR-series UT+/VP Single Board Replcement
https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-board-replacement/
does have a modern u-processor with ability to upgrade its firmware (future-proof).
The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers.
WHY BUY or UPGRADE ?

Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver.
Modern sensitive receiver (ublox), better ADEV observed and graphed
Faster GPS Lock, “Best of N” sats passed to GPSDO.
Fix the annoying Week Number Roll Over (WNRO) issue.
Future Proofing with ability to upgrade u-processor firmware.
—
Symmetricom 58503B
In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes).
—
I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board.
Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware.
As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands.
greg, w9gb
chicago
==
Date: Tue, 30 Jan 2024 09:58:43 -0500
From: Bob Camp kb8tq@n1k.org
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A
To: time-nuts@lists.febo.com
Hi
Just a random comment …..
The Ublox series parts speak a very different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task.
Bob

time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe send an email to time-nuts-leave@lists.febo.com

Gentlemen- I contacted Synergy yesterday and while the person I spoke with could not provide me with a lead-time…..(the demand has been high)…..they are accepting orders if you contact them via e-mail or phone. For 1 to 10 pieces, the price is just under $200 ($191 if I recall) plus shipping. If a TimeNut were to broker a large order, I’m sure a few dollars could be saved per receiver but that just adds complexity and it may not save much at all after the man-hours trying to coordinate any savings. I may order one myself just try it in one of my Z3801A units at the house, but at that price I can live off salvaging a few of the original receivers as a few other non-HP products also used the same original GPS receiver and so I have my personal spares. The current Synergy part number for the Z3801A and Z3805A is listed as model: SSR-VP1 with a Synergy part number of 16U54523G-B1. NOTE: Synergy advised me they will be updating their data-sheet for the entire family of these new receivers and it should be on their website soon. So if you do order one, be certain to verify with sales the make and model of GPS standard (ie: Z3801A) you intend to use their newest receiver in. That will hopefully avoid any future changes in their part numbers if that happens. Regards, -Brian, WA1ZMS iPhone > On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts <time-nuts@lists.febo.com> wrote: > > Greg, do you know if Synergy is actively selling this board and how? > > I ask because I sent them an inquiry from their website message system and have no reply. > > I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product... > > Best wishes, > > Larry McDavid W6FUB > Anaheim, California (SE of Los Angeles, near Disneyland) > >> On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote: >> The Synergy SSR-series UT+/VP Single Board Replcement >> https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-board-replacement/ >> does have a modern u-processor with ability to upgrade its firmware (future-proof). >> The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers. >> WHY BUY or UPGRADE ? >> * Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver. >> * Modern sensitive receiver (ublox), better ADEV observed and graphed >> * Faster GPS Lock, “Best of N” sats passed to GPSDO. >> * Fix the annoying Week Number Roll Over (WNRO) issue. >> * Future Proofing with ability to upgrade u-processor firmware. >> — >> Symmetricom 58503B >> In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes). >> — >> I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board. >> Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware. >> As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands. >> greg, w9gb >> chicago >> == >> Date: Tue, 30 Jan 2024 09:58:43 -0500 >> From: Bob Camp <kb8tq@n1k.org> >> Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A >> To: <time-nuts@lists.febo.com> >> Hi >> Just a random comment ….. >> The Ublox series parts speak a *very* different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task. >> Bob >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

T

tholmes@woh.rr.com

Thu, Feb 1, 2024 11:00 PM

I got a written quote yesterday for $191 plus shipping and 16-week lead time. I get the impression that they are manufactured overseas (no assumptions on my part as to where), and part of the lead time is getting past customs.

Tom, N8ZM

-----Original Message-----
From: Brian Justin, WA1ZMS via time-nuts time-nuts@lists.febo.com
Sent: Thursday, February 1, 2024 5:47 PM
To: Discussion of precise time and frequency measurement time-nuts@lists.febo.com
Cc: Brian Justin, WA1ZMS wa1zms@att.net
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A

Gentlemen-

I contacted Synergy yesterday and while the person I spoke with could not provide me with a lead-time…..(the demand has been high)…..they are accepting orders if you contact them via e-mail or phone. For 1 to 10 pieces, the price is just under $200 ($191 if I recall) plus shipping.

If a TimeNut were to broker a large order, I’m sure a few dollars could be saved per receiver but that just adds complexity and it may not save much at all after the man-hours trying to coordinate any savings.

I may order one myself just try it in one of my Z3801A units at the house, but at that price I can live off salvaging a few of the original receivers as a few other non-HP products also used the same original GPS receiver and so I have my personal spares.

The current Synergy part number for the Z3801A and Z3805A is listed as model: SSR-VP1 with a Synergy part number of 16U54523G-B1.

NOTE: Synergy advised me they will be updating their data-sheet for the entire family of these new receivers and it should be on their website soon. So if you do order one, be certain to verify with sales the make and model of GPS standard (ie: Z3801A) you intend to use their newest receiver in. That will hopefully avoid any future changes in their part numbers if that happens.

Regards,
-Brian, WA1ZMS
iPhone

On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts time-nuts@lists.febo.com wrote:

Greg, do you know if Synergy is actively selling this board and how?

I ask because I sent them an inquiry from their website message system and have no reply.

I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product...

Best wishes,

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

On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote:
The Synergy SSR-series UT+/VP Single Board Replcement
https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-boar
d-replacement/ does have a modern u-processor with ability to upgrade
its firmware (future-proof).
The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers.
WHY BUY or UPGRADE ?

Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver.
Modern sensitive receiver (ublox), better ADEV observed and graphed
Faster GPS Lock, “Best of N” sats passed to GPSDO.
Fix the annoying Week Number Roll Over (WNRO) issue.
Future Proofing with ability to upgrade u-processor firmware.
—
Symmetricom 58503B
In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes).
—
I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board.
Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware.
As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands.
greg, w9gb
chicago
==
Date: Tue, 30 Jan 2024 09:58:43 -0500
From: Bob Camp kb8tq@n1k.org
Subject: [time-nuts] Re: Drop-in replacement receiver boards for
Z3801A
To: time-nuts@lists.febo.com
Hi
Just a random comment …..
The Ublox series parts speak a very different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task.
Bob

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe
send an email to time-nuts-leave@lists.febo.com

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send
an email to time-nuts-leave@lists.febo.com

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

I got a written quote yesterday for $191 plus shipping and 16-week lead time. I get the impression that they are manufactured overseas (no assumptions on my part as to where), and part of the lead time is getting past customs. Tom, N8ZM -----Original Message----- From: Brian Justin, WA1ZMS via time-nuts <time-nuts@lists.febo.com> Sent: Thursday, February 1, 2024 5:47 PM To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> Cc: Brian Justin, WA1ZMS <wa1zms@att.net> Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A Gentlemen- I contacted Synergy yesterday and while the person I spoke with could not provide me with a lead-time…..(the demand has been high)…..they are accepting orders if you contact them via e-mail or phone. For 1 to 10 pieces, the price is just under $200 ($191 if I recall) plus shipping. If a TimeNut were to broker a large order, I’m sure a few dollars could be saved per receiver but that just adds complexity and it may not save much at all after the man-hours trying to coordinate any savings. I may order one myself just try it in one of my Z3801A units at the house, but at that price I can live off salvaging a few of the original receivers as a few other non-HP products also used the same original GPS receiver and so I have my personal spares. The current Synergy part number for the Z3801A and Z3805A is listed as model: SSR-VP1 with a Synergy part number of 16U54523G-B1. NOTE: Synergy advised me they will be updating their data-sheet for the entire family of these new receivers and it should be on their website soon. So if you do order one, be certain to verify with sales the make and model of GPS standard (ie: Z3801A) you intend to use their newest receiver in. That will hopefully avoid any future changes in their part numbers if that happens. Regards, -Brian, WA1ZMS iPhone > On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts <time-nuts@lists.febo.com> wrote: > > Greg, do you know if Synergy is actively selling this board and how? > > I ask because I sent them an inquiry from their website message system and have no reply. > > I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product... > > Best wishes, > > Larry McDavid W6FUB > Anaheim, California (SE of Los Angeles, near Disneyland) > >> On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote: >> The Synergy SSR-series UT+/VP Single Board Replcement >> https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-boar >> d-replacement/ does have a modern u-processor with ability to upgrade >> its firmware (future-proof). >> The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers. >> WHY BUY or UPGRADE ? >> * Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver. >> * Modern sensitive receiver (ublox), better ADEV observed and graphed >> * Faster GPS Lock, “Best of N” sats passed to GPSDO. >> * Fix the annoying Week Number Roll Over (WNRO) issue. >> * Future Proofing with ability to upgrade u-processor firmware. >> — >> Symmetricom 58503B >> In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes). >> — >> I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board. >> Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware. >> As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands. >> greg, w9gb >> chicago >> == >> Date: Tue, 30 Jan 2024 09:58:43 -0500 >> From: Bob Camp <kb8tq@n1k.org> >> Subject: [time-nuts] Re: Drop-in replacement receiver boards for >> Z3801A >> To: <time-nuts@lists.febo.com> >> Hi >> Just a random comment ….. >> The Ublox series parts speak a *very* different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task. >> Bob >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe >> send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send > an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

AS

Art Sepin

Fri, Feb 2, 2024 12:57 AM

Hi Larry - I apologize for the delay. Your original request to be added to our replacement board list was in one of several folders that got corrupted so many other names are missing also! Unfortunately, we're still backlogged on direct responses too. Anyone interested should send price and delivery requests to Gina who is copied on this e-mail and technical support questions to me. Thanks for your patience and understanding!

This is an active product, ADEV better than original receivers, and a datasheet is here:
https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-board-replacement/

Art

-----Original Message-----
From: Larry McDavid via time-nuts time-nuts@lists.febo.com
Sent: Wednesday, January 31, 2024 4:30 PM
To: Gregory Beat via time-nuts time-nuts@lists.febo.com
Cc: Larry McDavid lmcdavid@lmceng.com
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A

Greg, do you know if Synergy is actively selling this board and how?

I ask because I sent them an inquiry from their website message system and have no reply.

I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product...

Best wishes,

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

On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote:

The Synergy SSR-series UT+/VP Single Board Replcement
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsyne
rgy-gps.com%2Fsynergy-products%2Fssr-series-ut-vp-single-board-replace
ment%2F&data=05%7C02%7Cart%40synergy-gps.com%7Cbb7c360b4edb4cd6d2d808d
c23718999%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1%7C0%7C638424217768927
413%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTi
I6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=bU1%2Bx39rZtwuqOR%2BuIKGy7
Uzn6UESoehVgF2pAnpVqY%3D&reserved=0
does have a modern u-processor with ability to upgrade its firmware (future-proof).

The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers.

WHY BUY or UPGRADE ?

Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver.
Modern sensitive receiver (ublox), better ADEV observed and graphed
Faster GPS Lock, “Best of N” sats passed to GPSDO.
Fix the annoying Week Number Roll Over (WNRO) issue.
Future Proofing with ability to upgrade u-processor firmware.
—
Symmetricom 58503B
In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes).
—
I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board.

Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware.

As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands.

greg, w9gb
chicago

Date: Tue, 30 Jan 2024 09:58:43 -0500
From: Bob Camp kb8tq@n1k.org
Subject: [time-nuts] Re: Drop-in replacement receiver boards for
Z3801A
To: time-nuts@lists.febo.com

Hi

Just a random comment …..

The Ublox series parts speak a very different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task.

Bob

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send
an email to time-nuts-leave@lists.febo.com

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Hi Larry - I apologize for the delay. Your original request to be added to our replacement board list was in one of several folders that got corrupted so many other names are missing also! Unfortunately, we're still backlogged on direct responses too. Anyone interested should send price and delivery requests to Gina who is copied on this e-mail and technical support questions to me. Thanks for your patience and understanding! This is an active product, ADEV better than original receivers, and a datasheet is here: https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-board-replacement/ Art -----Original Message----- From: Larry McDavid via time-nuts <time-nuts@lists.febo.com> Sent: Wednesday, January 31, 2024 4:30 PM To: Gregory Beat via time-nuts <time-nuts@lists.febo.com> Cc: Larry McDavid <lmcdavid@lmceng.com> Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A Greg, do you know if Synergy is actively selling this board and how? I ask because I sent them an inquiry from their website message system and have no reply. I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product... Best wishes, Larry McDavid W6FUB Anaheim, California (SE of Los Angeles, near Disneyland) On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote: > The Synergy SSR-series UT+/VP Single Board Replcement > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsyne > rgy-gps.com%2Fsynergy-products%2Fssr-series-ut-vp-single-board-replace > ment%2F&data=05%7C02%7Cart%40synergy-gps.com%7Cbb7c360b4edb4cd6d2d808d > c23718999%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1%7C0%7C638424217768927 > 413%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTi > I6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=bU1%2Bx39rZtwuqOR%2BuIKGy7 > Uzn6UESoehVgF2pAnpVqY%3D&reserved=0 > does have a modern u-processor with ability to upgrade its firmware (future-proof). > > The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers. > > WHY BUY or UPGRADE ? > * Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver. > * Modern sensitive receiver (ublox), better ADEV observed and graphed > * Faster GPS Lock, “Best of N” sats passed to GPSDO. > * Fix the annoying Week Number Roll Over (WNRO) issue. > * Future Proofing with ability to upgrade u-processor firmware. > — > Symmetricom 58503B > In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes). > — > I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board. > > Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware. > > As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands. > > greg, w9gb > chicago > == > Date: Tue, 30 Jan 2024 09:58:43 -0500 > From: Bob Camp <kb8tq@n1k.org> > Subject: [time-nuts] Re: Drop-in replacement receiver boards for > Z3801A > To: <time-nuts@lists.febo.com> > > Hi > > Just a random comment ….. > > The Ublox series parts speak a *very* different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task. > > Bob > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send > an email to time-nuts-leave@lists.febo.com > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

LC

Lon Cottingham

Fri, Feb 2, 2024 4:24 PM

The price, when I ordered my boards (9/15/23) was $171. With shipping and
tax, I paid $183 per board, so you should probably add $12.00 to your cost.

I thought the boards were made off shore, but they are clearly marked "Made
in USA". They are extremely good quality. I have installed four of the
Synergy boards with no problems. Two have been running for a week without
any kind of drop out, or lock up.

73 de Lon, K5JV
281-795-1335

On Thu, Feb 1, 2024 at 11:27 PM TomH via time-nuts time-nuts@lists.febo.com
wrote:

I got a written quote yesterday for $191 plus shipping and 16-week lead
time. I get the impression that they are manufactured overseas (no
assumptions on my part as to where), and part of the lead time is getting
past customs.

Tom, N8ZM

-----Original Message-----
From: Brian Justin, WA1ZMS via time-nuts time-nuts@lists.febo.com
Sent: Thursday, February 1, 2024 5:47 PM
To: Discussion of precise time and frequency measurement <
time-nuts@lists.febo.com>
Cc: Brian Justin, WA1ZMS wa1zms@att.net
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A

Gentlemen-

I contacted Synergy yesterday and while the person I spoke with could not
provide me with a lead-time…..(the demand has been high)…..they are
accepting orders if you contact them via e-mail or phone. For 1 to 10
pieces, the price is just under $200 ($191 if I recall) plus shipping.

If a TimeNut were to broker a large order, I’m sure a few dollars could be
saved per receiver but that just adds complexity and it may not save much
at all after the man-hours trying to coordinate any savings.

I may order one myself just try it in one of my Z3801A units at the house,
but at that price I can live off salvaging a few of the original receivers
as a few other non-HP products also used the same original GPS receiver and
so I have my personal spares.

The current Synergy part number for the Z3801A and Z3805A is listed as
model: SSR-VP1 with a Synergy part number of 16U54523G-B1.

NOTE: Synergy advised me they will be updating their data-sheet for the
entire family of these new receivers and it should be on their website
soon. So if you do order one, be certain to verify with sales the make and
model of GPS standard (ie: Z3801A) you intend to use their newest receiver
in. That will hopefully avoid any future changes in their part numbers if
that happens.

Regards,
-Brian, WA1ZMS
iPhone

On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts <

time-nuts@lists.febo.com> wrote:

Greg, do you know if Synergy is actively selling this board and how?

I ask because I sent them an inquiry from their website message system

and have no reply.

I have several HP Z-3801A units and have had one receiver fail. I would

like to have a replacement, especially an upgraded one. Several here have
reported good results with the Synergy board but all those were apparently
ordered long ago and just recently delivered. I'm wondering if the board is
an active product...

Best wishes,

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

On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote:
The Synergy SSR-series UT+/VP Single Board Replcement
https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-boar
d-replacement/ does have a modern u-processor with ability to upgrade
its firmware (future-proof).
The Synergy SSR board converts Ublox GPS receiver’s native protocol to

that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox
receivers detect and receiver more than 8 or 12 satellite, the u-processor
(MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in
Oncore format). The form factor and 10-pin (2x5) header connection is
identical to the late 1990s Motorola Oncore receivers.

WHY BUY or UPGRADE ?

Revive from junk pile (dumpster) that GPSDO with a Dead Oncore

receiver.

Modern sensitive receiver (ublox), better ADEV observed and graphed
Faster GPS Lock, “Best of N” sats passed to GPSDO.
Fix the annoying Week Number Roll Over (WNRO) issue.
Future Proofing with ability to upgrade u-processor firmware.
—
Symmetricom 58503B
In 2017, I acquired this late GPSDO model that was “thrown in a closet”

from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of
operation and WNRO may have been mistaken for broken. This 58503B used the
Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board
(Form factor, command changes).

—
I started talking to Art Sepin at Synergy about this specific 58503B

configuration in 2022. As Art noted earlier, I sent my 58503B to his
experienced software team for full testing. This testing involved both the
UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver
replacement with my Goshay adapter board.

Since this was one of the last production runs of the 58503B, a few

additional commands (Bob’s fiddly problems) were detected between the
Symmetricom’s firmware & the GPS receiver. These were addressed in the
latest firmware.

As Bob noted, this was not an easy task. However, after 2 years of

work, I believe a good solution now exists for Oncore replacement. I
tested it with Lady Heather, SatStat, and SCPI commands.

greg, w9gb
chicago

Date: Tue, 30 Jan 2024 09:58:43 -0500
From: Bob Camp kb8tq@n1k.org
Subject: [time-nuts] Re: Drop-in replacement receiver boards for
Z3801A
To: time-nuts@lists.febo.com
Hi
Just a random comment …..
The Ublox series parts speak a very different language than the old

Motorola parts. Dropping a stock version of one chip in place of the other
isn’t going to work. You either need a custom version of the base chip or
some sort of MCU on the board to translate languages. Either way, there’s a
whole lot of hard work (and testing) that needs to be done to make that
work right. There are a number of fiddly problems you get into. Not at all
an easy task.

Bob

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe
send an email to time-nuts-leave@lists.febo.com

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send
an email to time-nuts-leave@lists.febo.com

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an
email to time-nuts-leave@lists.febo.com

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To unsubscribe send an email to time-nuts-leave@lists.febo.com

The price, when I ordered my boards (9/15/23) was $171. With shipping and tax, I paid $183 per board, so you should probably add $12.00 to your cost. I thought the boards were made off shore, but they are clearly marked "Made in USA". They are extremely good quality. I have installed four of the Synergy boards with no problems. Two have been running for a week without any kind of drop out, or lock up. 73 de Lon, K5JV 281-795-1335 On Thu, Feb 1, 2024 at 11:27 PM TomH via time-nuts <time-nuts@lists.febo.com> wrote: > I got a written quote yesterday for $191 plus shipping and 16-week lead > time. I get the impression that they are manufactured overseas (no > assumptions on my part as to where), and part of the lead time is getting > past customs. > > Tom, N8ZM > > -----Original Message----- > From: Brian Justin, WA1ZMS via time-nuts <time-nuts@lists.febo.com> > Sent: Thursday, February 1, 2024 5:47 PM > To: Discussion of precise time and frequency measurement < > time-nuts@lists.febo.com> > Cc: Brian Justin, WA1ZMS <wa1zms@att.net> > Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A > > Gentlemen- > > I contacted Synergy yesterday and while the person I spoke with could not > provide me with a lead-time…..(the demand has been high)…..they are > accepting orders if you contact them via e-mail or phone. For 1 to 10 > pieces, the price is just under $200 ($191 if I recall) plus shipping. > > If a TimeNut were to broker a large order, I’m sure a few dollars could be > saved per receiver but that just adds complexity and it may not save much > at all after the man-hours trying to coordinate any savings. > > I may order one myself just try it in one of my Z3801A units at the house, > but at that price I can live off salvaging a few of the original receivers > as a few other non-HP products also used the same original GPS receiver and > so I have my personal spares. > > The current Synergy part number for the Z3801A and Z3805A is listed as > model: SSR-VP1 with a Synergy part number of 16U54523G-B1. > > NOTE: Synergy advised me they will be updating their data-sheet for the > entire family of these new receivers and it should be on their website > soon. So if you do order one, be certain to verify with sales the make and > model of GPS standard (ie: Z3801A) you intend to use their newest receiver > in. That will hopefully avoid any future changes in their part numbers if > that happens. > > Regards, > -Brian, WA1ZMS > iPhone > > > On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts < > time-nuts@lists.febo.com> wrote: > > > > Greg, do you know if Synergy is actively selling this board and how? > > > > I ask because I sent them an inquiry from their website message system > and have no reply. > > > > I have several HP Z-3801A units and have had one receiver fail. I would > like to have a replacement, especially an upgraded one. Several here have > reported good results with the Synergy board but all those were apparently > ordered long ago and just recently delivered. I'm wondering if the board is > an active product... > > > > Best wishes, > > > > Larry McDavid W6FUB > > Anaheim, California (SE of Los Angeles, near Disneyland) > > > >> On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote: > >> The Synergy SSR-series UT+/VP Single Board Replcement > >> https://synergy-gps.com/synergy-products/ssr-series-ut-vp-single-boar > >> d-replacement/ does have a modern u-processor with ability to upgrade > >> its firmware (future-proof). > >> The Synergy SSR board converts Ublox GPS receiver’s native protocol to > that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox > receivers detect and receiver more than 8 or 12 satellite, the u-processor > (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in > Oncore format). The form factor and 10-pin (2x5) header connection is > identical to the late 1990s Motorola Oncore receivers. > >> WHY BUY or UPGRADE ? > >> * Revive from junk pile (dumpster) that GPSDO with a Dead Oncore > receiver. > >> * Modern sensitive receiver (ublox), better ADEV observed and graphed > >> * Faster GPS Lock, “Best of N” sats passed to GPSDO. > >> * Fix the annoying Week Number Roll Over (WNRO) issue. > >> * Future Proofing with ability to upgrade u-processor firmware. > >> — > >> Symmetricom 58503B > >> In 2017, I acquired this late GPSDO model that was “thrown in a closet” > from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of > operation and WNRO may have been mistaken for broken. This 58503B used the > Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board > (Form factor, command changes). > >> — > >> I started talking to Art Sepin at Synergy about this specific 58503B > configuration in 2022. As Art noted earlier, I sent my 58503B to his > experienced software team for full testing. This testing involved both the > UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver > replacement with my Goshay adapter board. > >> Since this was one of the last production runs of the 58503B, a few > additional commands (Bob’s fiddly problems) were detected between the > Symmetricom’s firmware & the GPS receiver. These were addressed in the > latest firmware. > >> As Bob noted, this was not an easy task. However, after 2 years of > work, I believe a good solution now exists for Oncore replacement. I > tested it with Lady Heather, SatStat, and SCPI commands. > >> greg, w9gb > >> chicago > >> == > >> Date: Tue, 30 Jan 2024 09:58:43 -0500 > >> From: Bob Camp <kb8tq@n1k.org> > >> Subject: [time-nuts] Re: Drop-in replacement receiver boards for > >> Z3801A > >> To: <time-nuts@lists.febo.com> > >> Hi > >> Just a random comment ….. > >> The Ublox series parts speak a *very* different language than the old > Motorola parts. Dropping a stock version of one chip in place of the other > isn’t going to work. You either need a custom version of the base chip or > some sort of MCU on the board to translate languages. Either way, there’s a > whole lot of hard work (and testing) that needs to be done to make that > work right. There are a number of fiddly problems you get into. Not at all > an easy task. > >> Bob > >> _______________________________________________ > >> time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe > >> send an email to time-nuts-leave@lists.febo.com > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send > > an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an > email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

AS

Art Sepin

Fri, Feb 2, 2024 6:56 PM

All,

I apologize the frustration. With the exception of the u-Blox modules, all of Synergy's products are, and have always been, manufactured here in San Diego, CA. They also meet stringent telecom, RR and EU standards. Delays have occured due to our inability to forecast demand which forces us to build smaller lots at higher costs. We're also in the process of selecting another local CM In San Diego (part of the most recent delay).

As a courtesy to Time-Nuts, Hams, Experimenters, effective immediately Synergy offers the first Replacement board, whether a larger format VP, GT+, UT+ or the smaller format M12+, M12M replacement at $150. Any additional boards, and boards for commercial orders, are quoted at their current price.

Art
(former K6IWS - previously known as a 14 year old, lower band, 20 meter CW freak)

-----Original Message-----
From: TomH via time-nuts time-nuts@lists.febo.com
Sent: Thursday, February 1, 2024 3:01 PM
To: 'Discussion of precise time and frequency measurement' time-nuts@lists.febo.com
Cc: tholmes@woh.rr.com
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A

I got a written quote yesterday for $191 plus shipping and 16-week lead time. I get the impression that they are manufactured overseas (no assumptions on my part as to where), and part of the lead time is getting past customs.

Tom, N8ZM

-----Original Message-----
From: Brian Justin, WA1ZMS via time-nuts time-nuts@lists.febo.com
Sent: Thursday, February 1, 2024 5:47 PM
To: Discussion of precise time and frequency measurement time-nuts@lists.febo.com
Cc: Brian Justin, WA1ZMS wa1zms@att.net
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A

Gentlemen-

I contacted Synergy yesterday and while the person I spoke with could not provide me with a lead-time…..(the demand has been high)…..they are accepting orders if you contact them via e-mail or phone. For 1 to 10 pieces, the price is just under $200 ($191 if I recall) plus shipping.

If a TimeNut were to broker a large order, I’m sure a few dollars could be saved per receiver but that just adds complexity and it may not save much at all after the man-hours trying to coordinate any savings.

I may order one myself just try it in one of my Z3801A units at the house, but at that price I can live off salvaging a few of the original receivers as a few other non-HP products also used the same original GPS receiver and so I have my personal spares.

The current Synergy part number for the Z3801A and Z3805A is listed as model: SSR-VP1 with a Synergy part number of 16U54523G-B1.

NOTE: Synergy advised me they will be updating their data-sheet for the entire family of these new receivers and it should be on their website soon. So if you do order one, be certain to verify with sales the make and model of GPS standard (ie: Z3801A) you intend to use their newest receiver in. That will hopefully avoid any future changes in their part numbers if that happens.

Regards,
-Brian, WA1ZMS
iPhone

On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts time-nuts@lists.febo.com wrote:

Greg, do you know if Synergy is actively selling this board and how?

I ask because I sent them an inquiry from their website message system and have no reply.

I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product...

Best wishes,

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

On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote:
The Synergy SSR-series UT+/VP Single Board Replcement
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsyn
ergy-gps.com%2Fsynergy-products%2Fssr-series-ut-vp-single-boar&data=0
5%7C02%7Cart%40synergy-gps.com%7C127bc0b9667e4be6192d08dc23afd1f1%7Cc
81f9fdec0e04d8c95779afaa0cad9ed%7C1%7C0%7C638424485258933505%7CUnknow
n%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiL
CJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=tCsQ2G31g9ynRFJwpWZoRe2eHKstjxQ%2FXa
L6Tkahk8A%3D&reserved=0 d-replacement/ does have a modern u-processor
with ability to upgrade its firmware (future-proof).
The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers.
WHY BUY or UPGRADE ?

Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver.
Modern sensitive receiver (ublox), better ADEV observed and graphed
Faster GPS Lock, “Best of N” sats passed to GPSDO.
Fix the annoying Week Number Roll Over (WNRO) issue.
Future Proofing with ability to upgrade u-processor firmware.
—
Symmetricom 58503B
In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes).
—
I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board.
Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware.
As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands.
greg, w9gb
chicago
==
Date: Tue, 30 Jan 2024 09:58:43 -0500
From: Bob Camp kb8tq@n1k.org
Subject: [time-nuts] Re: Drop-in replacement receiver boards for
Z3801A
To: time-nuts@lists.febo.com
Hi
Just a random comment …..
The Ublox series parts speak a very different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task.
Bob

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe
send an email to time-nuts-leave@lists.febo.com

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send
an email to time-nuts-leave@lists.febo.com

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com _______________________________________________
time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

All, I apologize the frustration. With the exception of the u-Blox modules, all of Synergy's products are, and have always been, manufactured here in San Diego, CA. They also meet stringent telecom, RR and EU standards. Delays have occured due to our inability to forecast demand which forces us to build smaller lots at higher costs. We're also in the process of selecting another local CM In San Diego (part of the most recent delay). As a courtesy to Time-Nuts, Hams, Experimenters, effective immediately Synergy offers the first Replacement board, whether a larger format VP, GT+, UT+ or the smaller format M12+, M12M replacement at $150. Any additional boards, and boards for commercial orders, are quoted at their current price. Art (former K6IWS - previously known as a 14 year old, lower band, 20 meter CW freak) -----Original Message----- From: TomH via time-nuts <time-nuts@lists.febo.com> Sent: Thursday, February 1, 2024 3:01 PM To: 'Discussion of precise time and frequency measurement' <time-nuts@lists.febo.com> Cc: tholmes@woh.rr.com Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A I got a written quote yesterday for $191 plus shipping and 16-week lead time. I get the impression that they are manufactured overseas (no assumptions on my part as to where), and part of the lead time is getting past customs. Tom, N8ZM -----Original Message----- From: Brian Justin, WA1ZMS via time-nuts <time-nuts@lists.febo.com> Sent: Thursday, February 1, 2024 5:47 PM To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> Cc: Brian Justin, WA1ZMS <wa1zms@att.net> Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A Gentlemen- I contacted Synergy yesterday and while the person I spoke with could not provide me with a lead-time…..(the demand has been high)…..they are accepting orders if you contact them via e-mail or phone. For 1 to 10 pieces, the price is just under $200 ($191 if I recall) plus shipping. If a TimeNut were to broker a large order, I’m sure a few dollars could be saved per receiver but that just adds complexity and it may not save much at all after the man-hours trying to coordinate any savings. I may order one myself just try it in one of my Z3801A units at the house, but at that price I can live off salvaging a few of the original receivers as a few other non-HP products also used the same original GPS receiver and so I have my personal spares. The current Synergy part number for the Z3801A and Z3805A is listed as model: SSR-VP1 with a Synergy part number of 16U54523G-B1. NOTE: Synergy advised me they will be updating their data-sheet for the entire family of these new receivers and it should be on their website soon. So if you do order one, be certain to verify with sales the make and model of GPS standard (ie: Z3801A) you intend to use their newest receiver in. That will hopefully avoid any future changes in their part numbers if that happens. Regards, -Brian, WA1ZMS iPhone > On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts <time-nuts@lists.febo.com> wrote: > > Greg, do you know if Synergy is actively selling this board and how? > > I ask because I sent them an inquiry from their website message system and have no reply. > > I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product... > > Best wishes, > > Larry McDavid W6FUB > Anaheim, California (SE of Los Angeles, near Disneyland) > >> On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote: >> The Synergy SSR-series UT+/VP Single Board Replcement >> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsyn >> ergy-gps.com%2Fsynergy-products%2Fssr-series-ut-vp-single-boar&data=0 >> 5%7C02%7Cart%40synergy-gps.com%7C127bc0b9667e4be6192d08dc23afd1f1%7Cc >> 81f9fdec0e04d8c95779afaa0cad9ed%7C1%7C0%7C638424485258933505%7CUnknow >> n%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiL >> CJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=tCsQ2G31g9ynRFJwpWZoRe2eHKstjxQ%2FXa >> L6Tkahk8A%3D&reserved=0 d-replacement/ does have a modern u-processor >> with ability to upgrade its firmware (future-proof). >> The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers. >> WHY BUY or UPGRADE ? >> * Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver. >> * Modern sensitive receiver (ublox), better ADEV observed and graphed >> * Faster GPS Lock, “Best of N” sats passed to GPSDO. >> * Fix the annoying Week Number Roll Over (WNRO) issue. >> * Future Proofing with ability to upgrade u-processor firmware. >> — >> Symmetricom 58503B >> In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes). >> — >> I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board. >> Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware. >> As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands. >> greg, w9gb >> chicago >> == >> Date: Tue, 30 Jan 2024 09:58:43 -0500 >> From: Bob Camp <kb8tq@n1k.org> >> Subject: [time-nuts] Re: Drop-in replacement receiver boards for >> Z3801A >> To: <time-nuts@lists.febo.com> >> Hi >> Just a random comment ….. >> The Ublox series parts speak a *very* different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task. >> Bob >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe >> send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send > an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

T

tholmes@woh.rr.com

Fri, Feb 2, 2024 8:35 PM

Art...

Thank you for the clarification and the kind pricing for us hobbyists. Much appreciated.

Tom, N8ZM

-----Original Message-----
From: Art Sepin art@synergy-gps.com
Sent: Friday, February 2, 2024 1:56 PM
To: Discussion of precise time and frequency measurement time-nuts@lists.febo.com
Cc: tholmes@woh.rr.com
Subject: RE: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A

All,

I apologize the frustration. With the exception of the u-Blox modules, all of Synergy's products are, and have always been, manufactured here in San Diego, CA. They also meet stringent telecom, RR and EU standards. Delays have occured due to our inability to forecast demand which forces us to build smaller lots at higher costs. We're also in the process of selecting another local CM In San Diego (part of the most recent delay).

As a courtesy to Time-Nuts, Hams, Experimenters, effective immediately Synergy offers the first Replacement board, whether a larger format VP, GT+, UT+ or the smaller format M12+, M12M replacement at $150. Any additional boards, and boards for commercial orders, are quoted at their current price.

Art
(former K6IWS - previously known as a 14 year old, lower band, 20 meter CW freak)

-----Original Message-----
From: TomH via time-nuts time-nuts@lists.febo.com
Sent: Thursday, February 1, 2024 3:01 PM
To: 'Discussion of precise time and frequency measurement' time-nuts@lists.febo.com
Cc: tholmes@woh.rr.com
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A

I got a written quote yesterday for $191 plus shipping and 16-week lead time. I get the impression that they are manufactured overseas (no assumptions on my part as to where), and part of the lead time is getting past customs.

Tom, N8ZM

-----Original Message-----
From: Brian Justin, WA1ZMS via time-nuts time-nuts@lists.febo.com
Sent: Thursday, February 1, 2024 5:47 PM
To: Discussion of precise time and frequency measurement time-nuts@lists.febo.com
Cc: Brian Justin, WA1ZMS wa1zms@att.net
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A

Gentlemen-

I contacted Synergy yesterday and while the person I spoke with could not provide me with a lead-time…..(the demand has been high)…..they are accepting orders if you contact them via e-mail or phone. For 1 to 10 pieces, the price is just under $200 ($191 if I recall) plus shipping.

If a TimeNut were to broker a large order, I’m sure a few dollars could be saved per receiver but that just adds complexity and it may not save much at all after the man-hours trying to coordinate any savings.

I may order one myself just try it in one of my Z3801A units at the house, but at that price I can live off salvaging a few of the original receivers as a few other non-HP products also used the same original GPS receiver and so I have my personal spares.

The current Synergy part number for the Z3801A and Z3805A is listed as model: SSR-VP1 with a Synergy part number of 16U54523G-B1.

NOTE: Synergy advised me they will be updating their data-sheet for the entire family of these new receivers and it should be on their website soon. So if you do order one, be certain to verify with sales the make and model of GPS standard (ie: Z3801A) you intend to use their newest receiver in. That will hopefully avoid any future changes in their part numbers if that happens.

Regards,
-Brian, WA1ZMS
iPhone

On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts time-nuts@lists.febo.com wrote:

Greg, do you know if Synergy is actively selling this board and how?

I ask because I sent them an inquiry from their website message system and have no reply.

I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product...

Best wishes,

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

On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote:
The Synergy SSR-series UT+/VP Single Board Replcement
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsyn
ergy-gps.com%2Fsynergy-products%2Fssr-series-ut-vp-single-boar&data=0
5%7C02%7Cart%40synergy-gps.com%7C127bc0b9667e4be6192d08dc23afd1f1%7Cc
81f9fdec0e04d8c95779afaa0cad9ed%7C1%7C0%7C638424485258933505%7CUnknow
n%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiL
CJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=tCsQ2G31g9ynRFJwpWZoRe2eHKstjxQ%2FXa
L6Tkahk8A%3D&reserved=0 d-replacement/ does have a modern u-processor
with ability to upgrade its firmware (future-proof).
The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers.
WHY BUY or UPGRADE ?

Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver.
Modern sensitive receiver (ublox), better ADEV observed and graphed
Faster GPS Lock, “Best of N” sats passed to GPSDO.
Fix the annoying Week Number Roll Over (WNRO) issue.
Future Proofing with ability to upgrade u-processor firmware.
—
Symmetricom 58503B
In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes).
—
I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board.
Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware.
As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands.
greg, w9gb
chicago
==
Date: Tue, 30 Jan 2024 09:58:43 -0500
From: Bob Camp kb8tq@n1k.org
Subject: [time-nuts] Re: Drop-in replacement receiver boards for
Z3801A
To: time-nuts@lists.febo.com
Hi
Just a random comment …..
The Ublox series parts speak a very different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task.
Bob

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe
send an email to time-nuts-leave@lists.febo.com

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send
an email to time-nuts-leave@lists.febo.com

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com _______________________________________________
time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

Art... Thank you for the clarification and the kind pricing for us hobbyists. Much appreciated. Tom, N8ZM -----Original Message----- From: Art Sepin <art@synergy-gps.com> Sent: Friday, February 2, 2024 1:56 PM To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> Cc: tholmes@woh.rr.com Subject: RE: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A All, I apologize the frustration. With the exception of the u-Blox modules, all of Synergy's products are, and have always been, manufactured here in San Diego, CA. They also meet stringent telecom, RR and EU standards. Delays have occured due to our inability to forecast demand which forces us to build smaller lots at higher costs. We're also in the process of selecting another local CM In San Diego (part of the most recent delay). As a courtesy to Time-Nuts, Hams, Experimenters, effective immediately Synergy offers the first Replacement board, whether a larger format VP, GT+, UT+ or the smaller format M12+, M12M replacement at $150. Any additional boards, and boards for commercial orders, are quoted at their current price. Art (former K6IWS - previously known as a 14 year old, lower band, 20 meter CW freak) -----Original Message----- From: TomH via time-nuts <time-nuts@lists.febo.com> Sent: Thursday, February 1, 2024 3:01 PM To: 'Discussion of precise time and frequency measurement' <time-nuts@lists.febo.com> Cc: tholmes@woh.rr.com Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A I got a written quote yesterday for $191 plus shipping and 16-week lead time. I get the impression that they are manufactured overseas (no assumptions on my part as to where), and part of the lead time is getting past customs. Tom, N8ZM -----Original Message----- From: Brian Justin, WA1ZMS via time-nuts <time-nuts@lists.febo.com> Sent: Thursday, February 1, 2024 5:47 PM To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> Cc: Brian Justin, WA1ZMS <wa1zms@att.net> Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A Gentlemen- I contacted Synergy yesterday and while the person I spoke with could not provide me with a lead-time…..(the demand has been high)…..they are accepting orders if you contact them via e-mail or phone. For 1 to 10 pieces, the price is just under $200 ($191 if I recall) plus shipping. If a TimeNut were to broker a large order, I’m sure a few dollars could be saved per receiver but that just adds complexity and it may not save much at all after the man-hours trying to coordinate any savings. I may order one myself just try it in one of my Z3801A units at the house, but at that price I can live off salvaging a few of the original receivers as a few other non-HP products also used the same original GPS receiver and so I have my personal spares. The current Synergy part number for the Z3801A and Z3805A is listed as model: SSR-VP1 with a Synergy part number of 16U54523G-B1. NOTE: Synergy advised me they will be updating their data-sheet for the entire family of these new receivers and it should be on their website soon. So if you do order one, be certain to verify with sales the make and model of GPS standard (ie: Z3801A) you intend to use their newest receiver in. That will hopefully avoid any future changes in their part numbers if that happens. Regards, -Brian, WA1ZMS iPhone > On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts <time-nuts@lists.febo.com> wrote: > > Greg, do you know if Synergy is actively selling this board and how? > > I ask because I sent them an inquiry from their website message system and have no reply. > > I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product... > > Best wishes, > > Larry McDavid W6FUB > Anaheim, California (SE of Los Angeles, near Disneyland) > >> On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote: >> The Synergy SSR-series UT+/VP Single Board Replcement >> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsyn >> ergy-gps.com%2Fsynergy-products%2Fssr-series-ut-vp-single-boar&data=0 >> 5%7C02%7Cart%40synergy-gps.com%7C127bc0b9667e4be6192d08dc23afd1f1%7Cc >> 81f9fdec0e04d8c95779afaa0cad9ed%7C1%7C0%7C638424485258933505%7CUnknow >> n%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiL >> CJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=tCsQ2G31g9ynRFJwpWZoRe2eHKstjxQ%2FXa >> L6Tkahk8A%3D&reserved=0 d-replacement/ does have a modern u-processor >> with ability to upgrade its firmware (future-proof). >> The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers. >> WHY BUY or UPGRADE ? >> * Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver. >> * Modern sensitive receiver (ublox), better ADEV observed and graphed >> * Faster GPS Lock, “Best of N” sats passed to GPSDO. >> * Fix the annoying Week Number Roll Over (WNRO) issue. >> * Future Proofing with ability to upgrade u-processor firmware. >> — >> Symmetricom 58503B >> In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes). >> — >> I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board. >> Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware. >> As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands. >> greg, w9gb >> chicago >> == >> Date: Tue, 30 Jan 2024 09:58:43 -0500 >> From: Bob Camp <kb8tq@n1k.org> >> Subject: [time-nuts] Re: Drop-in replacement receiver boards for >> Z3801A >> To: <time-nuts@lists.febo.com> >> Hi >> Just a random comment ….. >> The Ublox series parts speak a *very* different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task. >> Bob >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe >> send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send > an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

JP

JF PICARD

Sat, Feb 3, 2024 11:07 AM

Hello,

Do you supply a drop in GPS replacement board for the HP 58503B ?

Thank you.
On Friday, February 2, 2024 at 09:04:05 PM GMT+1, Art Sepin via time-nuts time-nuts@lists.febo.com wrote:

All,

I apologize the frustration. With the exception of the u-Blox modules, all of Synergy's products are, and have always been, manufactured here in San Diego, CA. They also meet stringent telecom, RR and EU standards. Delays have occured due to our inability to forecast demand which forces us to build smaller lots at higher costs. We're also in the process of selecting another local CM In San Diego (part of the most recent delay).

As a courtesy to Time-Nuts, Hams, Experimenters, effective immediately Synergy offers the first Replacement board, whether a larger format VP, GT+, UT+ or the smaller format M12+, M12M replacement at $150. Any additional boards, and boards for commercial orders, are quoted at their current price.

Art
(former K6IWS - previously known as a 14 year old, lower band, 20 meter CW freak)

-----Original Message-----
From: TomH via time-nuts time-nuts@lists.febo.com
Sent: Thursday, February 1, 2024 3:01 PM
To: 'Discussion of precise time and frequency measurement' time-nuts@lists.febo.com
Cc: tholmes@woh.rr.com
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A

I got a written quote yesterday for $191 plus shipping and 16-week lead time. I get the impression that they are manufactured overseas (no assumptions on my part as to where), and part of the lead time is getting past customs.

Tom, N8ZM

-----Original Message-----
From: Brian Justin, WA1ZMS via time-nuts time-nuts@lists.febo.com
Sent: Thursday, February 1, 2024 5:47 PM
To: Discussion of precise time and frequency measurement time-nuts@lists.febo.com
Cc: Brian Justin, WA1ZMS wa1zms@att.net
Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A

Gentlemen-

I contacted Synergy yesterday and while the person I spoke with could not provide me with a lead-time…..(the demand has been high)…..they are accepting orders if you contact them via e-mail or phone. For 1 to 10 pieces, the price is just under $200 ($191 if I recall) plus shipping.

If a TimeNut were to broker a large order, I’m sure a few dollars could be saved per receiver but that just adds complexity and it may not save much at all after the man-hours trying to coordinate any savings.

I may order one myself just try it in one of my Z3801A units at the house, but at that price I can live off salvaging a few of the original receivers as a few other non-HP products also used the same original GPS receiver and so I have my personal spares.

The current Synergy part number for the Z3801A and Z3805A is listed as model: SSR-VP1 with a Synergy part number of 16U54523G-B1.

NOTE: Synergy advised me they will be updating their data-sheet for the entire family of these new receivers and it should be on their website soon. So if you do order one, be certain to verify with sales the make and model of GPS standard (ie: Z3801A) you intend to use their newest receiver in. That will hopefully avoid any future changes in their part numbers if that happens.

Regards,
-Brian, WA1ZMS
iPhone

On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts time-nuts@lists.febo.com wrote:

Greg, do you know if Synergy is actively selling this board and how?

I ask because I sent them an inquiry from their website message system and have no reply.

I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product...

Best wishes,

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

On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote:
The Synergy SSR-series UT+/VP Single Board Replcement
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsyn
ergy-gps.com%2Fsynergy-products%2Fssr-series-ut-vp-single-boar&data=0
5%7C02%7Cart%40synergy-gps.com%7C127bc0b9667e4be6192d08dc23afd1f1%7Cc
81f9fdec0e04d8c95779afaa0cad9ed%7C1%7C0%7C638424485258933505%7CUnknow
n%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiL
CJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=tCsQ2G31g9ynRFJwpWZoRe2eHKstjxQ%2FXa
L6Tkahk8A%3D&reserved=0 d-replacement/ does have a modern u-processor
with ability to upgrade its firmware (future-proof).
The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers.
WHY BUY or UPGRADE ?

Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver.
Modern sensitive receiver (ublox), better ADEV observed and graphed
Faster GPS Lock, “Best of N” sats passed to GPSDO.
Fix the annoying Week Number Roll Over (WNRO) issue.
Future Proofing with ability to upgrade u-processor firmware.
—
Symmetricom 58503B
In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes).
—
I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board.
Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware.
As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands.
greg, w9gb
chicago
==
Date: Tue, 30 Jan 2024 09:58:43 -0500
From: Bob Camp kb8tq@n1k.org
Subject: [time-nuts] Re: Drop-in replacement receiver boards for
Z3801A
To: time-nuts@lists.febo.com
Hi
Just a random comment …..
The Ublox series parts speak a very different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task.
Bob

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe
send an email to time-nuts-leave@lists.febo.com

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send
an email to time-nuts-leave@lists.febo.com

time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com _______________________________________________
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To unsubscribe send an email to time-nuts-leave@lists.febo.com

Hello, Do you supply a drop in GPS replacement board for the HP 58503B ? Thank you. On Friday, February 2, 2024 at 09:04:05 PM GMT+1, Art Sepin via time-nuts <time-nuts@lists.febo.com> wrote: All, I apologize the frustration. With the exception of the u-Blox modules, all of Synergy's products are, and have always been, manufactured here in San Diego, CA. They also meet stringent telecom, RR and EU standards. Delays have occured due to our inability to forecast demand which forces us to build smaller lots at higher costs. We're also in the process of selecting another local CM In San Diego (part of the most recent delay). As a courtesy to Time-Nuts, Hams, Experimenters, effective immediately Synergy offers the first Replacement board, whether a larger format VP, GT+, UT+ or the smaller format M12+, M12M replacement at $150. Any additional boards, and boards for commercial orders, are quoted at their current price. Art (former K6IWS - previously known as a 14 year old, lower band, 20 meter CW freak) -----Original Message----- From: TomH via time-nuts <time-nuts@lists.febo.com> Sent: Thursday, February 1, 2024 3:01 PM To: 'Discussion of precise time and frequency measurement' <time-nuts@lists.febo.com> Cc: tholmes@woh.rr.com Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A I got a written quote yesterday for $191 plus shipping and 16-week lead time. I get the impression that they are manufactured overseas (no assumptions on my part as to where), and part of the lead time is getting past customs. Tom, N8ZM -----Original Message----- From: Brian Justin, WA1ZMS via time-nuts <time-nuts@lists.febo.com> Sent: Thursday, February 1, 2024 5:47 PM To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> Cc: Brian Justin, WA1ZMS <wa1zms@att.net> Subject: [time-nuts] Re: Drop-in replacement receiver boards for Z3801A Gentlemen- I contacted Synergy yesterday and while the person I spoke with could not provide me with a lead-time…..(the demand has been high)…..they are accepting orders if you contact them via e-mail or phone. For 1 to 10 pieces, the price is just under $200 ($191 if I recall) plus shipping. If a TimeNut were to broker a large order, I’m sure a few dollars could be saved per receiver but that just adds complexity and it may not save much at all after the man-hours trying to coordinate any savings. I may order one myself just try it in one of my Z3801A units at the house, but at that price I can live off salvaging a few of the original receivers as a few other non-HP products also used the same original GPS receiver and so I have my personal spares. The current Synergy part number for the Z3801A and Z3805A is listed as model: SSR-VP1 with a Synergy part number of 16U54523G-B1. NOTE: Synergy advised me they will be updating their data-sheet for the entire family of these new receivers and it should be on their website soon. So if you do order one, be certain to verify with sales the make and model of GPS standard (ie: Z3801A) you intend to use their newest receiver in. That will hopefully avoid any future changes in their part numbers if that happens. Regards, -Brian, WA1ZMS iPhone > On Feb 1, 2024, at 17:02, Larry McDavid via time-nuts <time-nuts@lists.febo.com> wrote: > > Greg, do you know if Synergy is actively selling this board and how? > > I ask because I sent them an inquiry from their website message system and have no reply. > > I have several HP Z-3801A units and have had one receiver fail. I would like to have a replacement, especially an upgraded one. Several here have reported good results with the Synergy board but all those were apparently ordered long ago and just recently delivered. I'm wondering if the board is an active product... > > Best wishes, > > Larry McDavid W6FUB > Anaheim, California (SE of Los Angeles, near Disneyland) > >> On 1/31/2024 7:51 AM, Gregory Beat via time-nuts wrote: >> The Synergy SSR-series UT+/VP Single Board Replcement >> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsyn >> ergy-gps.com%2Fsynergy-products%2Fssr-series-ut-vp-single-boar&data=0 >> 5%7C02%7Cart%40synergy-gps.com%7C127bc0b9667e4be6192d08dc23afd1f1%7Cc >> 81f9fdec0e04d8c95779afaa0cad9ed%7C1%7C0%7C638424485258933505%7CUnknow >> n%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiL >> CJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=tCsQ2G31g9ynRFJwpWZoRe2eHKstjxQ%2FXa >> L6Tkahk8A%3D&reserved=0 d-replacement/ does have a modern u-processor >> with ability to upgrade its firmware (future-proof). >> The Synergy SSR board converts Ublox GPS receiver’s native protocol to that of the obsolete Motorola Oncore VP/UT+ receivers. Since modern Ublox receivers detect and receiver more than 8 or 12 satellite, the u-processor (MCU) can select the “Best” 8 or 12 GPS satellites to send to GPSDO (in Oncore format). The form factor and 10-pin (2x5) header connection is identical to the late 1990s Motorola Oncore receivers. >> WHY BUY or UPGRADE ? >> * Revive from junk pile (dumpster) that GPSDO with a Dead Oncore receiver. >> * Modern sensitive receiver (ublox), better ADEV observed and graphed >> * Faster GPS Lock, “Best of N” sats passed to GPSDO. >> * Fix the annoying Week Number Roll Over (WNRO) issue. >> * Future Proofing with ability to upgrade u-processor firmware. >> — >> Symmetricom 58503B >> In 2017, I acquired this late GPSDO model that was “thrown in a closet” from a former ‘Mom & Pop’ cellular company. It had less than 1,000 hours of operation and WNRO may have been mistaken for broken. This 58503B used the Oncore M12+ GPS receiver with a Goshay Group (Norridge, CA) Adapter board (Form factor, command changes). >> — >> I started talking to Art Sepin at Synergy about this specific 58503B configuration in 2022. As Art noted earlier, I sent my 58503B to his experienced software team for full testing. This testing involved both the UT+/VP receiver replacement (solution I’m using) as well as M12+ receiver replacement with my Goshay adapter board. >> Since this was one of the last production runs of the 58503B, a few additional commands (Bob’s fiddly problems) were detected between the Symmetricom’s firmware & the GPS receiver. These were addressed in the latest firmware. >> As Bob noted, this was not an easy task. However, after 2 years of work, I believe a good solution now exists for Oncore replacement. I tested it with Lady Heather, SatStat, and SCPI commands. >> greg, w9gb >> chicago >> == >> Date: Tue, 30 Jan 2024 09:58:43 -0500 >> From: Bob Camp <kb8tq@n1k.org> >> Subject: [time-nuts] Re: Drop-in replacement receiver boards for >> Z3801A >> To: <time-nuts@lists.febo.com> >> Hi >> Just a random comment ….. >> The Ublox series parts speak a *very* different language than the old Motorola parts. Dropping a stock version of one chip in place of the other isn’t going to work. You either need a custom version of the base chip or some sort of MCU on the board to translate languages. Either way, there’s a whole lot of hard work (and testing) that needs to be done to make that work right. There are a number of fiddly problems you get into. Not at all an easy task. >> Bob >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe >> send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send > an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

LM

Larry McDavid

Sat, Feb 3, 2024 7:07 PM

The latest Synergy Tech Note #484-B (see my previous email on how to
download this Tech Note) shows the GPS receiver in the HP 58503A can be
replaced by the Synergy Model SSR-VP8/R P/N 16U54525G-B8 module, but
apparently the HP 58503B GPSDO units were delivered with different types
of GPS receivers. The data sheet shows that a picture of the installed
receiver is needed to select the correct replacement. The difference may
be how the coax connector is mounted.

You really need to download that Tech Note but be sure you get the
latest version, #484-B.

Best wishes,

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

On 2/3/2024 3:07 AM, JF PICARD via time-nuts wrote:

Hello,

Do you supply a drop in GPS replacement board for the HP 58503B ?

...

The latest Synergy Tech Note #484-B (see my previous email on how to download this Tech Note) shows the GPS receiver in the HP 58503A can be replaced by the Synergy Model SSR-VP8/R P/N 16U54525G-B8 module, but apparently the HP 58503B GPSDO units were delivered with different types of GPS receivers. The data sheet shows that a picture of the installed receiver is needed to select the correct replacement. The difference may be how the coax connector is mounted. You really need to download that Tech Note but be sure you get the latest version, #484-B. Best wishes, Larry McDavid W6FUB Anaheim, California (SE of Los Angeles, near Disneyland) On 2/3/2024 3:07 AM, JF PICARD via time-nuts wrote: > Hello, > > Do you supply a drop in GPS replacement board for the HP 58503B ? > ...