[time-nuts] GPS pcb IDs??

Art Sepin art at synergy-gps.com
Fri Aug 20 20:27:45 UTC 2010


Gentlemen,

What you have is a Motorola SL Oncore navigation receiver, R6 series
model number, with timing firmware installed. These 8 channel receivers,
slightly smaller than the UT+ but larger than the M12x receivers,  were
flashed with UT+ timing firmware and shipped to various telecom
companies between 1999 and 2003. 

Unlike the Motorola VP, GT/GT+ and UT/UT+ receivers, the SL Oncore
receivers are characterized by an "RF Dam" PC trace in place of the full
metal shield covering the RF components. Most of the SL Oncore receivers
we shipped were mounted in a full, shielded enclosure to operate in
higher EMI environments encountered in telecom installations.

An "SL Oncore Engineering Notes" document outlines the physical,
electrical and environmental characteristics of this GPS receiver. A
separate User's Guide for the SL was not published. The navigation
firmware load is like the older GT+ and the timing firmware load is like
the UT+. Therefore, the UT+ command/reply messages outlined in the
GT+/UT+ User's Guide can serve as a reference to the timing messages
available in the SL Oncore.

Because of continuing requests, we will be updating our web site to
include information on Motorola's legacy GPS receivers. In the interim,
please let me know where I can e-mail the SL Engineering Notes so that
anyone with interest can make reference to them. Engineering notes in
electronic form are also available for the Basic Oncore, VP Oncore, GT+
& UT+ Oncore and the M12 Oncore (but not M12+) - Thanks!

Art Sepin

Synergy Systems, LLC
San Diego
T (858) 566-0666
F (858) 566-0768
art at synergy-gps.com


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Alan Melia
Sent: Friday, August 20, 2010 6:37 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] GPS pcb IDs??

Thanks Christian, I have that doc but although I think it is probably
relevant the outline of the pcb is totally different to the pcb I have
though more like a number of M12 Oncores I have. Thank you for your
interest, and help.
Best Wishes
Alan G3NYK

----- Original Message -----
From: "Christian Riesch" <christian.riesch at omicron.at>
To: "'Discussion of precise time and frequency measurement'"
<time-nuts at febo.com>
Sent: Friday, August 20, 2010 1:13 PM
Subject: Re: [time-nuts] GPS pcb IDs??


> > -----Original Message-----
> > From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]
On
> > Behalf Of Alan Melia
> > Sent: Thursday, 19. August 2010 12:44
> > To: didier at cox.net; Discussion of precise time and frequency
> > measurement
> > Subject: Re: [time-nuts] GPS pcb IDs??
> >
> > Hi Didier, the Trimble is a Resolution T (3.3v)....user manual at
the
> > URL
> > quoted by Stanley (Thanks again Stanley)
> > The Synergy is Motorola UT+ Oncore (5v)  and I am sure the manual
for
> > those
> > is around somewhere but not had time to chase that yet.
>
> Alan,
> on the gpsd website you can find the Motorola Oncore Documentation:
> http://gpsd.berlios.de/vendor-docs/motorola/
>
> Christian
>
>
> > Please feel free to
> > add these to your gallery.......I may have some more when I get
round
> > to
> > taking some photos
> >
> > Thanks and Best Wishes
> > Alan G3NYK
> >
> > ----- Original Message -----
> > From: "Didier Juges" <didier at cox.net>
> > To: "Time-Nuts" <time-nuts at febo.com>
> > Sent: Thursday, August 19, 2010 12:43 AM
> > Subject: Re: [time-nuts] GPS pcb IDs??
> >
> >
> > > Alan,
> > >
> > > You may want to compare to those:
> > > http://www.ko4bb.com/Timing/GPS_Pics/
> > >
> > > If they do not match and you eventually find out what they are,
> > please let
> > me know and I will add them to my collection.
> > >
> > > That goes for anybody who has identified, clear pictures of GPS
> > receiver
> > boards, both sides preferably.
> > >
> > > Thanks in advance,
> > >
> > > Didier KO4BB
> > >
> > > ------------------------
> > > Sent from my BlackBerry Wireless thingy while I do other things...
> > >
> > > -----Original Message-----
> > > From: "Alan Melia" <alan.melia at btinternet.com>
> > > Sender: time-nuts-bounces at febo.com
> > > Date: Thu, 19 Aug 2010 00:07:20
> > > To: Time-Nuts measurement<time-nuts at febo.com>
> > > Reply-To: Discussion of precise time and frequency measurement
> > > <time-nuts at febo.com>
> > > Subject: [time-nuts] GPS pcb IDs??
> > >
> > > Hi I have just acquired a couple of GPS receiver pcbs, ex Telcoms
> > equipment.
> > > I know a lot of htese poards were discussed so time ago on the
group.
> > Does
> > > anyone recognise what they are and could point me at some
> > intrormations
> > > please.
> > > I am afraid the flash has washed the the pics out a bit but
hopefully
> > there
> > > is enough detail to be recognised
> > > http://www.alan.melia.btinternet.co.uk/GPS/Trimble_top.JPG
> > > http://www.alan.melia.btinternet.co.uk/GPS/Trimble_lower.JPG
> > > http://www.alan.melia.btinternet.co.uk/GPS/Synergy_top.JPG
> > > http://www.alan.melia.btinternet.co.uk/GPS/Synergy_lower.JPG
> > >
> > > The Trimble pcb is 2.6 by 1.25in., and the Synergy is 3.15 by 1.6
in.
> > >
> > > Thanks
> > > Alan
> > > G3NYK
> > >
>
>
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