[time-nuts] GPSDO time constant

Magnus Danielson magnus at rubidium.dyndns.org
Thu Jan 8 14:19:01 EST 2009


Poul-Henning Kamp skrev:
> In message <4965E869.4090205 at rubidium.dyndns.org>, Magnus Danielson writes:
> 
>> Ericsson created a rack system in which the bottom of the rack 
>> was actually forming a closed container with the floor. 
> 
> We had that at one place I worked, except it was two small "dogs" you
> attached front and back a standard 19" rack.

I never seen it myself, so you have more correct info. I go back from 
something told to me way back in time, so details got a bit fuzzy.

> Trouble was that you had to wash the floor first, or the dust would
> blow all over the place.

You also have some rather high requirements on the floor quality, it 
needs to be fairly flat as well.

Cheers,
Magnus




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