[time-nuts] US New Year countdown - accurate?

J. Forster jfor at quikus.com
Mon Jan 2 05:14:03 UTC 2012


I was referencing anything to an external, local reference. My comment was
the time difference between the FOX on screen timing and the ball dropping
fireworks. Presumably, the on-screen timing was inserted at their local
control center in NYC, not after satellite hops.

-John

============


> On Sun, Jan 01, 2012 at 05:54:46PM -0800, J. Forster wrote:
>> To me the ball drop/fireworks was different from the on-screen time on
>> FOX
>> by a few secnds.
>
> 	I was watching the media pool HD satellite feed on AMC-1 and
> through a broadcast grade IRD (ex PBS Bitlink ) it appeared to be about
> 2 seconds slow relative to  my house NTP timing.   This would about
> exactly match what I would expect for uplink encoder, satellite path,
> and decoder delays.
>
> 	I would expect a TV station using that feed might add anywhere
> from 1-6 seconds to the delay in their internal processing to OTA... and
> a digital cable system might add further delay to that (couple of more
> seconds at least).
>
> 	Real time TV these days is only RELATIVELY real time.
>
>
> --
>   Dave Emery N1PRE/AE, die at dieconsulting.com  DIE Consulting, Weston, Mass
> 02493
> "An empty zombie mind with a forlorn barely readable weatherbeaten
> 'For Rent' sign still vainly flapping outside on the weed encrusted pole -
> in
> celebration of what could have been, but wasn't and is not to be now
> either."
>
>





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