[time-nuts] CSAC Project(was CSAC purchase)

Bob kb8tq kb8tq at n1k.org
Thu Jan 25 14:20:26 EST 2018


Hi

One of the unique features of underwater timing is that the sea bottom temperature
(once you get well away from a coastline) is *very* stable. In some deployments, the “random”
nature of ambient temperature that we fight all the time in the rest of the world, simply is not
present. The device sits at 2.345 C and that’s it …..

Bob

> On Jan 25, 2018, at 2:06 PM, Tom Van Baak <tvb at LeapSecond.com> wrote:
> 
>> www.obsip.org/documents/Gardner_IEEE_Oceans_2016.pdf
> 
> Also see the very nice presentation:
> 
> "Challenges of precise timing underwater"
> http://www.ipgp.fr/~crawford/2017_EuroOBS_workshop/Resources/Gardner_OBS_Timing_ATG_20150427.pdf
> 
> /tvb
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