[time-nuts] ABC time signals in Tasmania/Australia wrong

[Hal Murray]

> If the TV station was transmitting digital and they were passing a
> network signal, a 5 second delay is possible. 

[snip long list of places where delays happen]

> With all of the processing, encoding and decoding of the digital
> signal, a 5 second delay is not unheard of. 

5 seconds is a long time.

How much is the typical encoding or decoding delay?

Speed of light delays are 1/ft per nanosecond.  Slow coax is half as fast 
(twice as long for the same distance).  At worst, that's 10 microseconds per 
mile or 10 ms per 1,000 miles.  That's not in the right ballpark for adding 
up to a second.

Lets look at it another way.  TV is 30 frames per second.  So 5 seconds is 
150 frames.  What sort of processing adds up to 150 frames?



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