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

Bill Woodcock woody at pch.net
Wed Feb 22 00:56:48 UTC 2012


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

> What if one sends a message one way that triggers say, 10 response messages 1 second apart.   Then you get distribution statistics on the return path.  You still don't know what the absolute forward or reverse path time was, of course.

Yes, that's one of the things that we do.  You don't need a trigger, you can just transmit the beacon.  That's how we measure jitter and out-of-order delivery, and how we detect parallel paths.

                                -Bill




-----BEGIN PGP SIGNATURE-----
Version: GnuPG/MacGPG2 v2.0.17 (Darwin)
Comment: GPGTools - http://gpgtools.org
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=864K
-----END PGP SIGNATURE-----





More information about the Time-nuts_lists.febo.com mailing list