[time-nuts] Some results of PRS10 and Trimble Resolution

Tom Van Baak tvb at leapsecond.com
Fri Jun 30 01:44:53 EDT 2006

> Why are dual freq. receivers not used in timing instruments? Ionospheric

They are. But only in the high-end instruments.

> errors are almost removed. Surveyors in every small town on earth are
> routinely getting sub 5cm accuracy in real time. Are not time labs using
> it to transfer their cesium time to each other?

True, but what's your guess on the price ratio between
a 5 cm dual frequency survey-grade timing receiver and
a M12 or Res-T? I'd guess 100x to 1000x. Anyone
know for sure?


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