[time-nuts] Four hour cycle in GPS NMEA jitter

Mon Mar 20 20:06:54 EDT 2017

Yo Chris!

On Mon, 20 Mar 2017 15:19:25 -0700
Chris Albertson <albertson.chris at gmail.com> wrote:

> I've only hear of 1 uS being broken with hardware.

A Raspberry Pi can get down to a Standard Deviation of about 350 nano seconds
using NTPsec..

https://blog.ntpsec.org/2017/02/01/heat-it-up.html

RGDS
GARY
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