[opendtv] Re: Democrats Air Concerns About Analog Switchover
- From: "John Willkie" <johnwillkie@xxxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Fri, 17 Nov 2006 23:52:21 -0800
Notice that "exactly reproduce" is a much narrower term than "replicate."
You might want to look up replicate in a real dictionary.
Also, nobody on this list has any legal authority, and Mark Aitken and I are
the only who comment on this list and participate in ATSC committees - and I
am only involved in the T3/S1 specialist group on metadata.
What people say on this list has no weight.
And, in the case of a few people, what is said is 180 or so degrees from
anything real.
That said, 8-VSB will replicate NTSC, if broadcasters use the maximum power
permitted by them. But, it won't "exactly reproduce" NTSC in the near field
for some time to come. In the far field, it will exceed NTSC in coverage.
Hth
John Willkie
_____
From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] On
Behalf Of flyback1
Sent: Friday, November 17, 2006 11:34 PM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: Democrats Air Concerns About Analog Switchover
John Willkie wrote:
Many different situations, or three?
For every ATSC receiver the signal, antenna and reception conditions will be
different. No two will be the same.
Nobody has ever said that 8-VSB will exactly reproduce NTSC. So what
indeed.
I am sure I have seen it written on this list more than a few times that
ATSC would replicate NTSC coverage.
John Willkie
_____
From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] On
Behalf Of flyback1
Sent: Friday, November 17, 2006 7:37 PM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: Democrats Air Concerns About Analog Switchover
John Willkie wrote:
"Doubtful. See other comments about reception in his apartment made over
the last few years by Mark Schubin."
Your situation is nothing like Mark Schubin's. Indeed, in a previous post, I
accounted for his apartment. High signal levels, many building reflections.
Buses going up and down the street, much urban RF.
I believe Mark Schubin has said several times he gets reasonable apartment
NTSC reception with rabbit ears on top of his set.
Your situation is different.
SO WHAT?
We have a replacement for NTSC that does not seem to work in many different
situations.
It's possible that no digital TV service can reach Mark's apartment. The
COFDM proponents have been too chicken to try when they've had the chance.
Not so for ATSC proponents.
In my situation, using a MyHD-130 receiver, I cannot get signals very well
when I'm close to the transmit sites. This involves two receive locations,
one in urban Tijuana, the other in suburban San Diego (with a clear line of
sight to the tx sites I cannot get.) That is sub-optimal; but I've yet to
try a fifth gen unit.
John Willkie
Sigh.
I have a DirecTV HD receiver, model H-20. It is the latest, greatest they
make. It works better than any of the eight others I have tried. I think
the ATSC portion of this receiver is fifth generation. Not certain where I
read this, may have been here or Audiokarma?
Still can't get clear, steady pictures without occasional breakups. Just not
acceptable to me.
Other related posts:
