[time-nuts] GSP clock stabilitiy, Rb vs Cs

[Attila Kinali]

On Sat, 4 May 2013 16:31:42 -0700 (PDT)
Mark Spencer <mspencer12345 at yahoo.ca> wrote:

> The article available for download via this URL contains some history
> about development issues with Rb and Cs Clocks for GPS.   It seems at
> one point after the GPS system was placed into service a development
> program for new Cs GPS clocks failed and by necessity there was a shift
> towards Rb (at least for a period of time.)
>  
> http://www.insidegnss.com/node/281

Interesting article. Thanks!

			Attila Kinali

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