Art, Thanks for the info. Please do put me on the list for updates.
Fred > On Jun 21, 2021, at 8:55 PM, Art Sepin <a...@synergy-gps.com> wrote: > > Hi Fred, > > I apologize if the following smells overtly commercial; it's only intended to > answer your questions and explain where we are in the process of producing > GPS replacement products for legacy timing instruments. > > The 6 and 8 channel Motorola VP and 8 channel UT+ will not work as > replacements. Those products have also reached their 1024 Week-Roll Over > limits. The HP Z3801A and Z3805A products only respond to 6 channel commands > and produce 6 channel reply messages. > > We have developed single-board clones for the Motorola VP and UT+ products, > as drop-in replacements, that are lower in cost than Synergy's 2-board > Adaptor Board products (Shooting for dropping to less than $190 if component > prices don't go even higher!). The SSR-VP can plug into the HP Z3801A and > Z3805A products. > > A different part number SSR-VP designed to drop into HP 58503A and an > SSR-UT+, designed to drop into HP 58503B products, have also been completed > but firmware for those have yet to be tested in actual instruments. With the > proper firmware loads, the SSR Drop-In products should be candidates for > upgrading many other legacy timing instruments. > > We had planned for the single board "Drop-In" products to be available near > the end of 2020 but COVID-19 changed things for us. We are now planning a > small production run to satisfy folks that have already been in touch with us > but we need to complete our boot-loader for firmware updates first. With > current work load, I'd estimate 90 - 120 days for HP Z3801A and Z3805A > replacements. If you are interested we can put you on our list. > > Apologies for the quasi-commercial intrusion! > > Art > > > -----Original Message----- > From: Frederick Bray <fwb...@mminternet.com> > Sent: Monday, June 21, 2021 7:21 PM > To: time-nuts@lists.febo.com > Subject: [time-nuts] Z3801A Receiver Replacement > > I have a HP Z3801A with a dead GPS receiver. I understand that it is > possible to drop in an Oncore VP 8 channel receiver as a replacement -- not > withstanding the fact that the Z3801A will only see six channels. > > I see that Motorola R5122U1154 8 channel receivers are available. Does > anyone know whether this will function in the Z3801A? I'd like to get it > working again. > > Thanks. > > Fred Bray, KE6CD > > > > ______________________ _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.