On Thu, 30 Nov 2017 09:39:59 -0500
Bob kb8tq <kb...@n1k.org> wrote:

>  That last decade ( 0.01 Hz period to 0.001 Hz)

What puzzles me here is, the reason why someone would care
about sub-1Hz frequencies in a telephone system? IIRC POTS
did cut off somewhere areound 100-300Hz anyways.

                        Attila Kinali
-- 
It is upon moral qualities that a society is ultimately founded. All 
the prosperity and technological sophistication in the world is of no 
use without that foundation.
                 -- Miss Matheson, The Diamond Age, Neil Stephenson
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