[time-nuts] Low-long-term-drift clock for board levelintegration?

Bill Woodcock woody at pch.net
Wed Feb 22 01:05:37 UTC 2012


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256


On Feb 21, 2012, at 11:12 AM, Mark Spencer wrote:

> Perhaps another way to approach this problem would be to see if there are entities and or individuals who already have precision time keeping equipment (or at least access to GPS antennas) who might be able to participate in collecting this data.

That approach has been tried by RIPE, and it yielded a couple of dozen usefullly-reliable measurement points after five years, twenty thousand man-hours, and about USD 1M in investment.  That's not the approach we're taking, though certainly it has produced some useful results.  The rate at which the number of links increases as a function of the number of nodes in a full mesh is a powerful incentive to pursue larger numbers of nodes.

                                -Bill




-----BEGIN PGP SIGNATURE-----
Version: GnuPG/MacGPG2 v2.0.17 (Darwin)
Comment: GPGTools - http://gpgtools.org
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=FYYB
-----END PGP SIGNATURE-----




More information about the time-nuts mailing list