[opendtv] Re: STB hunting

  • From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Thu, 26 Jan 2006 10:43:10 -0500

Mark Schubin wrote:

> It sounds like you put your ANTENNA where it's needed,
> not your TV.

Yes, sorry about that. So I'm saying that if you've done
this for NTSC, chances are good that you know where the
transmitting antennas are for the different stations and
where, in the room, the strongest signal might be. It
gives you a leg up on someone who is trying to play with
DTT cold, having only ever had cable.

I've had people ask something as basic as how you aim a
typical yagi. They didn't even know what end should point
where, if you can believe that.

> If you agree that people accept lousy NTSC reception,
> that seems to me to be a contradiction of your statement.

If you want to split hairs, there are probably two
fundamental differences between fussing with analog vs
fussing with digital OTA reception.

1. The digital cliff, which doesn't exist in analog.

2. In older digital receivers, lack of pre-echo tolerance,
which makes it that much more tricky to get reception
with digital, especially with indoor antennas.

I think most DTT receivers have a signal strength meter
of some sort to help mitigate the digital cliff problem.
Even if you start with no image at all, at least you have
some idea whether there's a signal there, and can see the
effect of moving the antenna.

As for the second item, newer receivers are solving that,
so that reception should be less touchy once there's
evidence of signal.

> We agree on the section.  We seem, for reasons beyond
> my comprehension, to disagree on the implications for
> the ABC station.

I think that guy's experience with digital is similar to
what people have always had deal with in analog reception,
where a single antenna aiming might not do for every
station in the market. The only point he made was that
when he found the *single* sweet spot where all stations
came in, ABC was shaky. He didn't say ABC was always
shaky. Only in that one antenna configuration. And that
the ATSC receiver built into the DISH STB improved that,
or perhaps solved it. We don't know.

I pointed out to you that in my case, analog Ch 56 is
completely unusable, whereas its digital counterpart Ch 30
is solid. Isn't this a perfect counterexample? Should MHz
Networks (Ch 30) be pushing for analog shutdown?

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