Plus, you can add a Motrorla UT+ GPS receiver into the Z3812A and turn it into a GPSDO. There is a nice writeup of the procedure on EEVBLOG. Basically you move a half dozen 0 ohm resistors and add a resistor for the antenna current sense circuit. Also, Lady Heather now talks to them.

I looked at this when it was mentioned here a few weeks ago. I did the procedure in an hour or so and it's working well, keeping the PPS within 50ns of GPS with 6-8 satellites. Monitored by the patched version of Z38XX at the moment though I look forward to putting Lady Heather on the job. The curious thing is, although that file is hosted on eevblog, I can't find any link to it from the forums. You have to know where to find it. http://www.eevblog.com/forum/testgear/economical-option-for-precision-frequency-reference/?action=dlattach;attach=172662 Perhaps we could get a copy on Didier's site (with the author, Peter Garde's permission) before it gets lost ? On Thu, Nov 10, 2016 at 6:19 PM, Mark Sims <holrum@hotmail.com> wrote: > Plus, you can add a Motrorla UT+ GPS receiver into the Z3812A and turn it > into a GPSDO. There is a nice writeup of the procedure on EEVBLOG. > Basically you move a half dozen 0 ohm resistors and add a resistor for the > antenna current sense circuit. > > Also, Lady Heather now talks to them. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >