Hi, If no one on the list has a spare one, you might try calling synergy systems as you are in the US. They have adapter boards built for the M12 receiver which have a VP footprint and if the doc is correct can be configured as 6/8 chan VPs. The M12 can be found at reasonable prices on eBay. See: <http://www.synergy-gps.com/images/stories/pdf/m12_adapter_tn487%20070209.pdf>
They also have a LEA-6T board in M12 card format which can be used with that adaptor board. You would of course need to check the headroom needed for the receiver + adaptor. See : <http://www.synergy-gps.com/images/stories/pdf/ssr-6t%20tn%20493-c.pdf> > Le 27 sept. 2018 à 06:03, Matthew D'Asaro <[email protected]> a écrit : > > Hi, > I just subscribed to this list but I have been interested in time > standards for some years and have been reading the archives. My specific > interest is in an accurate frequency standard for my home lab so that I can > do my own "calibrations" of the ovenized timebases used in oscilloscopes, > counters, synthesized generators and the like. I had originally thought it > would be really cool to own my own primary standard and have been trolling > eBay for some time looking for an HP 5061A, but I never really wanted to > spend the big $$$$ or gamble on a unit in unknown condition having a good > tube so I sat on the idea for a number of years. However, I have recently > started working on a project where I really need an accurate frequency > reference and after researching GPSDOs I decided that is the way I would go. > > Last month I bought on eBay a used HP 58503a and matching antenna. > Unfortunatly, the system would not work (the HP wouldn't even finish booting) > and when I opened it up I found that the GPS board is completely missing. > After reading a bunch of back posts from this group, it appears that what I > need is a Motorola VP Oncore board and that other versions (such as the UT+) > will NOT work. Unfortunatly, I don't see any VP Oncore boards for sale on > eBay or elsewhere. This leads me to my questions. First, am I correct that I > can't use any Oncore version except the VP in my 58503a and second, does > anyone know of a source for an Oncore VP? > I am pretty sure that you need a VP. I have a Z3801A which is much the same as the 58503A IIRC. I have tried GT+, UT+ in that but they don’t work. > Thanks in advance, > Matthew D'Asaro > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. People have only as much liberty as they have the intelligence to want and the courage to take. Emma Goldman _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
