[time-nuts] US New Year countdown - accurate?
David I. Emery
die at dieconsulting.com
Mon Jan 2 05:09:16 UTC 2012
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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