Bert, In discussions with Brooks Shera the approach we are contemplating is an interpolating TIC and 0-5v output add-on board for use with his controller board. Minor modifications to the A&A engineering board will route the XO to an interpolating front end and route the outputs back to the controller board. The +/- 3v output will route to the new board, which will supply 0-5v for an Rb. A new controller PIC would be added, and the upgrade would be complete. So don't get rid of those old Shera controllers just yet, an upgrade is in the works. It won't have the features of the GPSMAX as Brooks thinks we need to "KISS" the design, but it will increase the resolution and gain so the original board can be used with Rubidium sources.
Richard > Yes, you are absolutely right and I have tried to get Richard to do it. > Bert > > > In a message dated 7/28/2010 4:47:46 P.M. Eastern Daylight Time, > p...@phk.freebsd.dk writes: > > In message <4c5092fa.2030...@xtra.co.nz>, Bruce Griffiths writes: > >>Instead of copying the Shera controller albeit with higher resolution >>its probably more cost effective to choose a microprocessor with built >>in time stamping capability. > > Uhm, isn't this exactly where you want to use the > still-smelling-like-brand-new-car PICTIC II with a good DAC and > a microcontroller ? > > -- > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > p...@freebsd.org | TCP/IP since RFC 956 > FreeBSD committer | BSD since 4.3-tahoe > Never attribute to malice what can adequately be explained by > incompetence. > > _______________________________________________ > 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. > > _______________________________________________ > 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. > _______________________________________________ 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.
