[opendtv] Charirman Genachowski speech at NAB
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: "opendtv@xxxxxxxxxxxxx" <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 12 Apr 2011 20:02:17 -0500
http://www.fcc.gov/Daily_Releases/Daily_Business/2011/db0412/DOC-305708A1.pdf
The interesting stuff starts well in the second half.
He says incentive auctions are a win-win for broadcasters and broadband, and a
"slam dunk" for the public. I'm not so sure about that last part. At least, not
for those who actually use FOTA TV.
He says voluntary incentive auctions are voluntary, although the broadcaster
might not be allowed to remain in its existing 6 MHz channel. Interesting.
He doesn't seem to understand the comment that if two broadcasters share
spectrum, mobile DTV will suffer. Or at least, he responds with generalities
about "business models," which makes me wonder.
He doesn't buy the argument that we need a new broadcast standard first. I tend
to agree on that. Unless the "new standards" proponents are prepared for big
changes, such as (a) deploying a dense mesh of towers to exploit MIMO
advantages throughout market areas, or (b) installing regional networks to
allow SFNs to really save on spectrum, I haven't seen any convincing arguments
that appreciable amounts of spectrum can be saved with a modulation change.
Nor does switching to H.264 seem to have the 2:1 benefits that one keeps
reading about. Even the French scheme, where they increased from two to three
HD programs in a 24 MHz channel, doesn't support the 2:1 hype. Not unless these
are all sports programming, which they are not. (Compare this with the common
mix of 1 HD + 3 SD, in a 19 Mb/s channel, with MPEG-2 compression. Assume
whatever numbers you like.)
But a change to compression would seem like the simplest of all. Perhaps make
it a jump to H.265, while we're at it.
Bert
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