[opendtv] Re: Let them eat cake (and ATSC while they're at it)
- From: Bob Miller <bob@xxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Mon, 16 May 2005 13:22:16 -0400
No HM involved.
Bob Miller
John Shutt wrote:
>Doug,
>
>Yes it can because that is EXACTLY what I have been flapping my gums about
>since 1999 on this list! DVB-T provides, me, the broadcaster, with a huge
>knob on the side of my transmitter that reads "More robust, less bitrate" at
>one end, and "Less Robust, More Bitrate" at the other. And I, as the
>broadcaster, can turn that knob as it suits me, my business model, and my
>terrain.
>
>ATSC is fixed at one spot, and as has been demonstrated for the past 7
>years, too far clockwise on the dial. As we see, E-VSB is going nowhere.
>The ATSC itself basically killed E-VSB with the restrictions they placed in
>the standard as to how many total bits a broadcaster is allowed to dedicate
>to the robust stream, and what video resolution can be used in the robust
>stream. Purely political, not technical, decisions that sunk that ship as
>it slid down the slipway.
>
>I have said for YEARS that even if the miracle chips ever became a
>reality,( as they apparently have as long as a mil spec front end is used,
>ala the LG Cold Fusion prototype that so far can't be reproduced by anyone
>else,) it still won't provide mobile, or datacasting to mobile devices, or
>the newly developed DVB-H to hand held devices.
>
>Bob's demo showed 4 SD streams, and did not use HM modulation. I would much
>rather deliver 12 Mbps to everyone than 19 Mbps to half of my potential
>audience.
>
>John
>
>----- Original Message -----
>From: "Doug McDonald" <mcdonald@xxxxxxxxxxxx>
>
>
>
>>John .... that demo CANNOT be compared to ATSC ***AT ALL***
>>because it is much less than 19.3 Mb/sec. Mobile, bitrate
>>matters, and matters a lot ... independant of power.
>>And that was not a "low power" scenario .... because
>>Bob never drove very far from the transmitter. He never,
>>for example, was at least a few miles beyond the LOS horizon.
>>
>>Doug McDonald
>>
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