> GSM, CDMA and TDMA networks require extreme precision in their timing so they
> all use GPS disciplined clock references. In fact, old digital cell phones
> are great sources of extremely accurate SMT TCXO's (ppm level) if you don't
> mind the odd ball base frequency.

Answering my own question: GPS time is Stratum 2 as it's slaved from a
cesium clock at USNO (US Navy).

-marc

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Marc Nicholas Geekythings Inc. C/416.543.4896
UNIX, Database, Security and Networking Consulting

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