Re: Videoguys NAB2006 report


"J. Clarke" <jclarke.usenet@xxxxxxxxxxxxxxxx> wrote in message
news:e3klol12684@xxxxxxxxxxxxxxxxxxxx

<Snip>
Note that in three years analog broadcast goes black unless the law is
changed.

Also note that this doesn't mean that your TV will go black
just because it is analog. If you have cable or satellite then
you will probably be able to get analog out of your set top
box for some time to come. Direct analog out of the cable
is slowly going away. By this I mean cable that you can
connect to your old cable ready TV to and be able to watch
anything that isn't scrambled, but the cable company will
give or rent you a cable box that converts the digital cable
signal and delivers it to your analog TV. The change to
digital doesn't affect anybody except those people that
only receive local TV stations on rabbit ears, or other type
of VHF/UHF antenna.

The conversion of over the air broadcasting from analog to
digital is something the local TV stations have to cope with.
They are loosing their broadcast allocation for analog
broadcasting. They are being converted to a smaller
bandwidth frequency allocation that is only to be used for
digital transmission. They will still be expected to meet the
same requirements of over the air public broadcasting just
as they do now, but the digital allocation allows them enough
digital bandwidth to have quite a bit left over to put out other
channels or services within the same digital broadcast signal.

Another mis-conception is that the local broadcasters are
being required to switch over to HDTV. This is not true. They
don't even have to switch to 16 x 9. They only have to switch
to digital. Most of us with relatively new cable installations have
already switched to watching 3 X 4 digital TV. Eventually they
will likely switch to HDTV, but even then there will likely be
digital to analog set top converters available, just as there
were when UHF became available. It may not be as prevalent
or continue to be available as long as it was for UHF but it
should exist for a while to allow people with old analog TVs
to be able to still get local TV signals.

HDTV is digital, but digital is not necessarily HD in broadcast TV.

David


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