If you’ve read this whole project description it is pretty evident that it doesn’t actually do anything yet! It would be pretty easy to turn the prototype into a frequency counter or generator, a pulse width measurement tool or generator and of course a precision time source such as a NTP server. It could also just emulate a GPS when there is no satellite reception which then could be used directly with time synchronization software on a PC.
With all the work that I did to calibrate these oscillators manually I am convinced that I can do better by experimentally measuring the aging drift and the response to temperature and compensating by adjusting the FPGA counter constants. Also the calibration needs to be done automatically which will not be too difficult to accomplish.
There are better performance TCXOs and of course OCXOs and I have one of each to try out. I also found some used OCXOs on Ebay for $20 so I am quite keen on trying one of those.
Finally I want to see what is possible with a S3231 RTC chip which is available on many low cost breakout boards and it would be interested to see what kind of performance could be achieved with those.
This project is definitely not over yet!