[time-nuts] DIY GPS-DO

Bob Camp lists at rtty.us
Sat Mar 10 13:14:01 UTC 2012


Hi

Which module do you have?

Bob



On Mar 10, 2012, at 8:07 AM, Filip Ozimek <me_super at o2.pl> wrote:

> 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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