[opendtv] Gap Fillers Could Be Key Issue in ATSC-MH Deployment
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Fri, 31 Jul 2009 20:21:28 -0400
What makes the US deployment interesting is its implication for all
other DTT users. Since the M/H stream here is on the same RF channel as
that broadcaster's main ATSC signal, any gap fillers added for mobile
appliances would also potentially impact fixed TV sets. Hopefully, for
the better.
The DVB-H systems in Europe are on dedicated channels, as far as I know.
I checked our local Ion station, which now went to one HD stream, three
SD streams, and the M/H stream too (don't know how many M/H programs).
The SD look a little stressed out, but I wouldn't say they are worse
than some others in the area.
Also, who is left transmitting 1080i for HD? I noticed that our PBS
station, WETA, went from 1080i to 720p and that Ion also went 720p for
its new HD stream. Fox and ABC are also 720p. I'll check tonight if I
remember, but it could be that 1080i is being phased out gradually?
Bert
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http://www.tvtechnology.com/article/84716
Gap Fillers Could Be Key Issue in ATSC-MH Deployment
From Doug Lung's RF Report
07.30.2009.
According to research firm TeleAnalytics, deployment of gap fillers
could delay broadcasters' deployment of mobile DTV in the United States.
It the July issue of its TeleAnalytics Mobile TV Tracking Service
(TMTS) [PDF], the report commented that "ATSC-M/H appears to be on track
for a late summer trial in Washington, D.C., but the balance of the 2009
launch schedule (17 markets) may be too aggressive and commercial
services might not start until 2010."
In researching this report, I found a June 2009 update to TeleAnalytics'
publication "Making Mobile TV pay: A 2005-2013 Market Analysis of the
Service, Silicon, Terminal and Infrastructure Markets." In the section,
"The ATSC Promise," the researcher emphasizes the need for coverage-both
the number of stations and their signals on the ground. The report noted
that the deployment of gap fillers from roof locations was a key
ATSC-M/H issue. It also observed that Korean broadcasters had arrived at
a solution "in the original small T-DBM coverage area" of Seoul. However
Brazilian broadcasters were still trying to work out co-location
arrangements and that this was hampering deployment of their "One-Seg"
system.
As for the ATSC mobile DTV business case, the report noted the
complexities in deployment.
"As analyzed, the dimensioning of the ATSC-M/H business case first of
all depends on the number of stations that would be on line at any point
in time and their geographical location." And it cautions that "the
enablement of the ATSC M/H Ad revenue stream requires the commissioning
of an electronic audience measurement system at the earliest point in
time."
I found the cover of "Making Mobile TV Pay" interesting, as it shows a
Japanese iPhone with a Softbank One Segment tuner/battery-pack add on. A
similar cell phone/smart phone add-on or back-pack could prove an easy
way to get ATSC Mobile DTV in the hands of consumers quickly in the U.S.
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