Hmmm...I design such timing systems for Moto data radios, and 30nS sync is
going to be very hard to achieve in reality. Over a few hundred miles you're
going to have OTA time of flight issues, temperature dependencies, etc. Over
the years this has been tried, usually with dismal success in the
Regarding the thread about NTP as a backup timing source:
We've done quite a lot of customizing of NTP code here in our lab, and
researching ways to make it better than typically 20mS on a good day (reliably)
over the cloud. One of the main problems is that core assumption that the
outbound pa
