[time-nuts] Yet another GPSDO project.

[Jim Harman]

You might want to study the design by Lars Walenius posted on this list in
2014 and updated here
https://www.eevblog.com/forum/projects/lars-diy-gpsdo-with-arduino-and-1ns-resolution-tic/

Lars has unfortunately passed away, but his design lives on. I have built a
couple of GPSDOs based on his design and would be happy to answer any
questions you have.

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--Jim Harman