[time-nuts] Positional accuracy of the M12+T

Poul-Henning Kamp phk at phk.freebsd.dk
Wed Jan 3 08:12:49 EST 2007


In message <5197.202.64.189.90.1167829315.squirrel at webmail.lysator.liu.se>, bg@
lysator.liu.se writes:

>Hmmm... with 25m position accuracy (and 100ns is about 30m), how do they
>really get time down to a few ns. Clever engineering!  :-)

Position hold mode allows them to solve N(sat) equations with one
unknown instead of N(sat) equations with four unknowns.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
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Never attribute to malice what can adequately be explained by incompetence.



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