Re: [FCP-L] Re: OT LG TruMotion 480Mhz LCD TV, etc??

Then there's what happens to broadcast television when the cable or
satellite service providers take in the signal (which can often be via
a very clean, high-bandwidth direct fiber or microwave link from the
broadcaster) and do data reduction or bandwidth limiting on the
broadcaster's signal in order to squeeze more channels into a fixed
amount of bandwidth going to homes.

On Nov 28, 2009, at 5:23 PM, Dennis Degan wrote:

> Broadcast TV has less data bandwidth than a Blu-ray disc. It is also
> broadcast in the air, which adds lots of noise and possible
> interference to the signal. Corrective data is provided in order to
> mask some of these problems. If you are receiving a weak signal or
> multipath, the TV must work harder to mask the additional errors. But
> those errors may not be completely masked; there may be artifacts
> left.
> Of course, additional data devoted to correcting errors also takes up
> bandwidth that otherwise would be used to produce a better picture.
> Another big difference is that the bandwidth that IS available for
> broadcasting is shared with other additional services. WPIX Channel 11
> for example is carrying a subchannel (11.2) called "LATV" which uses
> about 1.5MHz of the available 19.3MHz bandwidth. OTOH, Blu-ray can
> devote more of its available bandwidth to making high-quality pictures
> and sound.

Ted Langdell
flashscan8.us
209 East 12th Street
Marysville, CA 95901
Main: (530) 741-1212
Cell: (530) 301-2931

ted@flashscan8.us

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