[time-nuts] GPS discipline oscillator vs phase lock

Attila Kinali attila at kinali.ch
Fri Jun 16 18:32:09 EDT 2017

On Sat, 17 Jun 2017 00:21:54 +0200
Attila Kinali <attila at kinali.ch> wrote:

> Another reference value: Time transfer using calibrated GPS receivers
> achieves an absolute accuracy of about 1-2ns(RMS) over base lines of
> several 10km with single frequency receivers. Dual frequency receivers
> have been reported to do <200ps[1] over 400km (TDEV <60ps up to 5days).

Yet another reference value:

Using LEA6-T it is possible to achieve sub-cm relative positioning precision
when recording phase data and doing postprocessing over several hour
blocks and with distances of a few km (<5km IIRC). Stability is good
to several months in high-alpine environments.

			Attila Kinali

You know, the very powerful and the very stupid have one thing in common.
They don't alters their views to fit the facts, they alter the facts to
fit the views, which can be uncomfortable if you happen to be one of the
facts that needs altering.  -- The Doctor

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