[opendtv] Re: NAB forms DTV transition team
- From: "Dale Kelly" <dalekelly@xxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 09 Jan 2007 21:33:44 -0800
Reply interlineated:
Bert wrote:>
> Dale Kelly wrote:
> >but you must also make the distinction between can work and
> >does work, in your arguments.
>
> Let me make that more positive.
>
> I think that 5th gen receivers "as is" do work well enough for the
> transition to be ended. And I say this in part because of reports of real
> devices, and in part because we have ended our own transition
> already, with 3rd gen receivers, indoor and outdoor antennas,
> with no heroic measures. We no longer use analog TV stations.
I assume that "we" means you. If so, that is simply one persons experience
but it is clear evidence of what "Can" be done when one is dedicated.
Unfortunately, that is not the norm, the average viewer will try once, maybe
twice, but will not make it a major project.
> Furthermore, shutting off the super powerful analog stations can
> only help improve everyone's digital reception, even with older
> receivers. I wouldn't be at all surprised if the majority of reception
> problems now were caused by a digital station being adjacent to a much
> stronger analog station.
Completely agree. The "packing" of analog and digital channels was know, at
it's inception, to be an impediment to reception, albeit mostly temporary in
nature.
Reception problems, not related to multipath issues should certainly improve
for many after the analog cut off.
> Furthermore, digital transmitter antennas are now often in the less than
> ideal location. Lower tower than the analog, or on the side, or otherwise
> compromised. So what there is can probably be improved with relatively
small
> effort even without improving receivers.
Again, I agree, Though in my experience, which is relatively significant,
this is not a universal problem by any means. But clearly, where significant
propagation disparage exists between A and D facilities, reception problems
will result.
> Furthermore, I'm fully confident that receivers will continue to improve,
> because we already know some things that can be done to improve them,
> specifically in the training area, and because innovations such
> as A-VSB are coming on line.
Agree, however I believe that we may be nearing a "tipping point" where the
market may be become saturated by marginal receivers.
> Lastly, there's nothing like the imperative of making things work in the
> here and now to get it done.
That is so, if it can be done. However, IMO, there are other significant
forces at play which have led us to our current dilemma and which are not
under our control.
Dale
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