From: MikeE@ster.invalid   
      
   Mike Easter wrote:   
   > I think I like the no-solder RPi GPS one best.   
      
   There's more on this concept at another site:   
      
   > This post details how to create a stratum-1 NTP Server using a   
   > Raspberry Pi utilizing GPS and PPS, and get time within 100   
   > nanoseconds of real time, directly from the atomic clocks located in   
   > the GPS satellites above your head. The best part about this guide is   
   > that this will work with no internet.   
      
   Besides the PPS (serial), he also/alternatively does it via USB of less   
   precision.   
      
   https://blog.networkprofile.org/gps-backed-local-ntp-server/   
   GPS Raspberry Pi NTP Server   
      
   --   
   Mike Easter   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)