Thanks, Chris, I didn't gather that from his posting. It'd be up to Perrier to illuminate that point.
Volker Am 08.02.2014 18:33, schrieb Chris Albertson: > On Sat, Feb 8, 2014 at 3:44 AM, Volker Esper <[email protected]> wrote: > >> you don't need 10kHz to build a GPS disciplined oscillator. GPSDOs are >> build with control loop response times in the range of some hours, so >> the loop will be absolutely happy with a 1PPS input. >> > > Of course you are correct. Most GPSDOs are driven with a 1Hz pulse. But I > think maybe the OP is not building just any GPSDO but maybe he is looking > to repair a specific GPSDO that is designed to use the old (and now rare) > Rockwell GPS. If that is the case he needs the old Rockwell or needs > to redesign his system. > > If you are starting from scratch to build a new GPSDO it's easier now. All > you need is some kind of a phase detector (74HC4046 ?) and a small uP that > has a good built-in DAC. The uP checks the phase once per second and > adjusts it'sDAC accordingly. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
