Re: NTP Sync Issue Across Tata (Europe)

[Chris Adams <cma () cmadams net>]

Once upon a time, Jay Hennigan <jay () west net> said:
> Both GPS and WWVB are over-the-air. There has been concern expressed
> of a bad actor spoofing or jamming GPS. Comparatively speaking,
> jamming or spoofing WWVB is a trivial joke.

WWVB is not generally useful for precision timing applications, due to
the distance and wave reflections.  Also, from a security point of view,
I have read that it is legal to have your own low-power transmitter on
the WWVB frequency, and there are instructions for doing it with a Pi,
so it would be very cheap and easy to mess with somebody's WWVB signal.
-- 
Chris Adams <cma () cmadams net>