[time-nuts] Re: Derivation of time from celestial sight

2021-12-28 Thread Rob Seaman
ling list, whether via computer networks, cell phones, radio signals from the ground or orbiting satellites, or indeed, carried in a pocket, on our wrists, or in the back of an SUV (http://leapsecond.com/great2016a/ <http://leapsecond.com/great2016a/>). I invite Tom back any time to our o

[time-nuts] Re: Poor's man NTP

2021-12-17 Thread Rob Seaman
liances_Project>). Which is to say that the Raspberry Pi itself is not the limiting factor here, and indeed such an affordable single board computer is required to provide inexpensive ubiquitous precision timekeeping. Rob Seaman Lunar and Planetary Laboratory University of Arizona —

[time-nuts] Re: Updated TimeHat image (new gpsd!)

2021-11-09 Thread Rob Seaman
will need the compilers and such provided by the build environment before running “scons”. Rob Seaman University of Arizona — > > dietpi-update > > -Bob > > On Tue, Nov 2, 2021 at 8:25 PM Bill Dailey <http://febo.com/cgi-bin/mailman/listinfo/time-nuts_lists.febo.com>&g

Re: [time-nuts] Affordable PoE 6-digit time displays?

2018-06-18 Thread Rob Seaman
local time will tick the seconds in lockstep with each other and external references to a small fraction of a second (hundredths or better). Rob Seaman, University of Arizona (No connection to the company.) — > On Jun 14, 2018, at 9:15 PM, David Andersen <https://lists.febo.com/cgi-bin/m