[time-nuts] DIY GPS-DO

Filip Ozimek me_super at o2.pl
Sat Mar 10 13:07:33 UTC 2012


Hello,


could you recommend me a good project of GPS-DO? I've got a GPS module with 1PPS output and a 20 MHz VCXO.
As I understand to do a phaselock to 1 PPS signal one must build some kind of digital PLL. But I'm not sure 
how to calculate a correction signal to the VCXO and how to test such a disciplined oscillator.

Filip.



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