[opendtv] Re: White paper from CEA
- From: Mark Schubin <tvmark@xxxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Mon, 31 Oct 2005 14:56:58 -0500
Bob Miller wrote:
>With current 8-VSB receivers ATSC does not work as well as NTSC. I think
>Mark Schubin will attest to that.
>
>
It depends what you mean by "current." As I reported on July 22, 2004 (more
than 15 months ago), a prototype LG set-top box demonstrated in my apartment
worked conceivably at least as well as NTSC for reception with a fixed, set-top
antenna. Not all NY DTT stations were on the air at the time, but, of those
that were, there was reliable reception of all but one, and they were running
at lower power than the NTSCs. The one was located in a different state, and
even its NTSC version requires some fiddling for me to receive. With the DTT
box, I was able to get it reliably with an antenna near the window.
I'd love to repeat the test now that everyone is on the air, but I'm pretty
comfortable that it works, with lower power than NTSC, with generally
better-quality results (excessive compression and lip-sync can be problems, but
neither is attributable to the ATSC standard).
That said, no box demonstrated at my apartment since that prototype --
including several that supposedly had the same demodulator -- has worked as
well as NTSC there. Furthermore, the successful technology was first publicly
demonstrated 15 months before it was tested at my apartment. So, in 30 months
it has yet to appear in a set-top box someone can buy.
Supposedly, the next (LG-made) DirecTV boxes will have it. I look forward to
testing one.
TTFN,
Mark
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