[opendtv] Re: 7" ATSC TV

How would the FCC get jurisdiction to do that, Tom?  Receivers are
self-certified by the maker, not type-accepted by the FCC.

John Willkie
----- Original Message ----- 
From: "Tom Barry" <trbarry@xxxxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx>
Sent: Saturday, April 21, 2007 5:44 PM
Subject: [opendtv] Re: 7" ATSC TV


> My own opinion is that the FCC should carefully question Zenith/LG on
> what exactly was in the 5th gen "black box", and whether Zenith is
> willing to share detailed info and duplicate it or whether they indeed
> committed some sort of fraud there.
>
> IMHO there are an awful lot of people (including the other CE guys) that
> stand  to incur some political embarrassment and possible financial loss
> based upon various Zenith/LG claims.  I consider them liable.
>
> - Tom
>
> Dale Kelly wrote:
> > Frank wrote:
> >
> >>I don't know how you can say with certainty that these
> >>Performance issues are entirely related to "poor RF front end design.
> >
> >
> > My statement was based upon a tuners "selectivity" performance* in the
> > packed channel environment which will now include new unlicensed signals
> > introduced into the so-called "unused white spaces". In such an
environment
> > better receiver front ends are required to deal with the IM and image
> > products produced by "minimal" tuners.
> > Clearly, other A/74 related failings could very well be non-tuner
related.
> >
> > * = Good selectivity performance generally requires some combination of
> > multi conversion IF, wide band AGC and tracking filters to achieve
desired
> > performance.
> >
> >
> >>In any case, the market will continue to decide how much incremental
> >>Receiver performance is worth. My guess is that CE products will
> >>Continue to include the very best RF front end + base band chips, as
> >>long as those also happen to be the cheapest ones -- because of
> >>the perceived value of an ATSC receiver to most consumers is pretty
> >>close to $0.
> >
> >
> > I see this as a somewhat more complex issue than pure economics and
don't
> > believe that the CE industry should receive a free pass. Please bear
with me
> > for a short historical review, as I recall it:
> > * The ATSC/8VSB system was developed and proposed by the CE community,
who
> > also control the current ATSC standards process and is responsible for
the
> > very marginal A/74 RP.
> > * 8VSB was "sold" to broadcasters and adopted by the FCC with certain
> > receiver performance expectations.
> > * The original ATTC (Blue Rack) test receiver incorporated a
well-designed
> > double conversion tuner that met those expectations.
> > * During initial testing, the industry was "blind sided" by the poor
> > multi-path performance issue, even though it was predicted by a number
of
> > engineers.
> > * The CE industry, having no where to hide and needing to protect it's
IP
> > investment and stave off a broadcaster revolt, committed significant
> > resources to resolving the multipath problem. After a number of false
starts
> > laced with questionable performance claims and five years time, they
were
> > able to demonstrate satisfactory performance using a Zenith 5th gen.
"black
> > box" receiver, whose performance was never duplicated in any commercial
> > product (as tested by the FCC and others).
> >
> > IMO, that same CE industry, who developed this system and who now
proposes
> > and will benefit from, the new unlicensed services, while likely not
guilty
> > of fraud, is, through it's failure to provide receivers capable of
> > functioning in the environment they created, disingenuous and completely
> > untrustworthy.
> >
> > They are, through their manipulations, largely responsible for "the
> > perceived value of an ATSC receiver to most consumers being pretty close
to
> > $0", which was a self fulfilling prophesy based upon their actions, or
lack
> > thereof.
> >
> > Dale
> >
> >
> >
> >
> >
> >
> >
> >
> > ----------------------------------------------------------------------
> > You can UNSUBSCRIBE from the OpenDTV list in two ways:
> >
> > - Using the UNSUBSCRIBE command in your user configuration settings at
FreeLists.org
> >
> > - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.
> >
> >
>
> -- 
> Tom Barry                  trbarry@xxxxxxxxxxx
>
>
>
> ----------------------------------------------------------------------
> You can UNSUBSCRIBE from the OpenDTV list in two ways:
>
> - Using the UNSUBSCRIBE command in your user configuration settings at
FreeLists.org
>
> - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>

 
 
----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:

- Using the UNSUBSCRIBE command in your user configuration settings at 
FreeLists.org 

- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word 
unsubscribe in the subject line.

Other related posts: