US ATSC conversion: with 700 some odd days until NTSC is turned off, you would think that US TV stations would run a dayly counter...
 

I beleive that signal - I've only seen it on the trolley - is transmitted on
top of the power line feed (hard wired, not 'transmitted' per se).

TTUL... John

"Sal M. Onella" wrote in message
...

"Mark Crispin" wrote in message
...

snip

You'll occasionally hear from cranks and crackpots who claim that COFDM
is
"better" because it reportedly works better in cars or trains. Japan's
mobile digital TV craps out once the vehicle gets much above 20km/h; I
know this first-hand. Another crank argument is because of a silly
pseudo-test years ago, when one of the Crank Brigade had trouble using
an
indoor loop antenna to receive ATSC inside a Manhattan apartment.

I'm a bit off-topic with this next, but maybe you know: Some public
transit
vehicles in and around San Diego are demonstrating live video from
somewhere. It's news, weather and features, all fast paced and light. It
doesn't seem to have sound or to need it, but does seem to be motion video
and it seems to work OK, even at 50 MPH. It's only on a few vehicles and
I
really have just caught it a few times. I know Qualcomm has an
experimental
digital transmitter on UHF Ch 53 and this could be the service.

Can you shed any light on it? (I haven't done any research at the transit
authority's website. Full details might be there in plain sight.)

Thanks.

US ATSC conversion: with 700 some odd days until NTSC is turned off, you would think that US TV stations would run a dayly counter...
 

"davmel" wrote in message

The flame wars have only just begun.....

Good, we like it. The USA's HDTV broadcasting system is *light-years* more
advanced than any cofdm-using country.

line the pockets of senators with cash so that their particular standard or
technology it adopted rather than what is best for the population.

LOLOL...... yet another bob miller shill.

US ATSC conversion: with 700 some odd days until NTSC is turnedoff, you would think that US TV stations would run a dayly counter...
 

David wrote:
"davmel" wrote in message

The flame wars have only just begun.....

Good, we like it. The USA's HDTV broadcasting system is *light-years* more
advanced than any cofdm-using country.

Which is why so many people are watching OTA terrestrial HDTV in the
USA..... NOT.
The light years you speak of are an indication of how old and already
obsolete the ATSC system is. But don't worry it will only be a matter of
time before the standard is just a foot note in history just like the
long list of USA centric communications standards.

US ATSC conversion: with 700 some odd days until NTSC is turned off, you would think that US TV stations would run a dayly counter...
 

"davmel" wrote in message
...
David wrote:
"davmel" wrote in message

The flame wars have only just begun.....

Good, we like it. The USA's HDTV broadcasting system is *light-years*
more advanced than any cofdm-using country.

Which is why so many people are watching OTA terrestrial HDTV in the
USA..... NOT.


The uptake has been slow, but steady. As expected.

This article, posted by the Australian organisation "Fairfax Digital"
claims their DTV system is an "utter failure" and a "turkey".

http://www.theage.com.au/articles/20...337221919.html

I sure hope they get it straightened out someday. . .

US ATSC conversion: with 700 some odd days until NTSC is turnedoff, you would think that US TV stations would run a dayly counter...
 

David wrote:
"davmel" wrote in message
...
David wrote:
"davmel" wrote in message

The flame wars have only just begun.....
Good, we like it. The USA's HDTV broadcasting system is *light-years*
more advanced than any cofdm-using country.
Which is why so many people are watching OTA terrestrial HDTV in the
USA..... NOT.


The uptake has been slow, but steady. As expected.

This article, posted by the Australian organisation "Fairfax Digital"
claims their DTV system is an "utter failure" and a "turkey".

http://www.theage.com.au/articles/20...337221919.html

I sure hope they get it straightened out someday. . .

Technically the digital TV system is great in Australia, but some of the
existing broadcasters pressured the government to impose ridiculous
limitations on the what channels and content can be broadcast with the
digital TV services.
The requirement for simulcasting what is on the analogue channels as
both an SD AND a HD digital channel has only been lifted this year, but
the broadcasters still haven't made any changes to reflect this.
Most of the regulatory restrictions will only be removed in 2009. Until
then most viewers have little incentive to change to digital TV other
than improved picture and sound quality, there is no significant
additional content to warrant changing over until their old equipment
breaks down.

In the USA there is much greater incentive to move to high quality HDTV
over the awful NTSC 480 line analogue services, but most people have
opted for sat or cable based systems instead.

US ATSC conversion: with 700 some odd days until NTSC is turned off, you would think that US TV stations would run a dayly counter...
 

"davmel" wrote in message
...
David wrote:
"davmel" wrote in message
...
David wrote:
"davmel" wrote in message

The flame wars have only just begun.....
Good, we like it. The USA's HDTV broadcasting system is *light-years*
more advanced than any cofdm-using country.
Which is why so many people are watching OTA terrestrial HDTV in the
USA..... NOT.


The uptake has been slow, but steady. As expected.

This article, posted by the Australian organisation "Fairfax Digital"
claims their DTV system is an "utter failure" and a "turkey".

http://www.theage.com.au/articles/20...337221919.html

I sure hope they get it straightened out someday. . .

Technically the digital TV system is great in Australia, but some of the
existing broadcasters pressured the government to impose ridiculous
limitations on the what channels and content can be broadcast with the
digital TV services.
The requirement for simulcasting what is on the analogue channels as both
an SD AND a HD digital channel has only been lifted this year, but the
broadcasters still haven't made any changes to reflect this.
Most of the regulatory restrictions will only be removed in 2009. Until
then most viewers have little incentive to change to digital TV other than
improved picture and sound quality, there is no significant additional
content to warrant changing over until their old equipment breaks down.

In the USA there is much greater incentive to move to high quality HDTV
over the awful NTSC 480 line analogue services, but most people have opted
for sat or cable based systems instead.

Yes, certain people here use that observation as an argument that we should
switch to a more profitable mobile-advertising cofdm-type system.

BTW, wasn't there an Australian DTV system that was overhauled once before
or was it some British DTV system that had to be completely scrapped?

US ATSC conversion: with 700 some odd days until NTSC is turned off, you would think that US TV stations would run a dayly counter...
 

"Mark Crispin" wrote
Davmel wrote: Stop spreading BS. The coverage is only small due to lower
power levels.

Golly gee, most US digital TV broadcasters are also at lower power levels.

I guess that lower power levels is only an excuse when it's COFDM.



That point always has been one of bob's major stumbling blocks.

US ATSC conversion: with 700 some odd days until NTSC is turnedoff, you would think that US TV stations would run a dayly counter...
 

In article , davmel wrote:
David wrote:
"davmel" wrote in message

The flame wars have only just begun.....

Good, we like it. The USA's HDTV broadcasting system is *light-years* more
advanced than any cofdm-using country.

Which is why so many people are watching OTA terrestrial HDTV in the
USA..... NOT.
The light years you speak of are an indication of how old and already
obsolete the ATSC system is. But don't worry it will only be a matter of
time before the standard is just a foot note in history just like the
long list of USA centric communications standards.
At least the USA was out there seting standards, unlike Australia.

US ATSC conversion: with 700 some odd days until NTSC is turned off, you would think that US TV stations would run a dayly counter...
 

David wrote:
"Mark Crispin" wrote
Davmel wrote: Stop spreading BS. The coverage is only small due to
lower power levels.

Golly gee, most US digital TV broadcasters are also at lower power
levels.

I guess that lower power levels is only an excuse when it's COFDM.



That point always has been one of bob's major stumbling blocks.


Here in the UK the amount of homes with terrestrial digital had reached
almost 9 million (and growing!) six months ago http://www.tiny.cc/dymOd.

Set-top boxes can retail at under 20UK pounds, also virtually every TV
manufactured in at least the last 15 years (along with DVDs, satellite,
video equipment etc) is fitted with one to three SCART sockets, which when
used in conjunction with a standard lead will almost instantly convert it
into an RGB stereo monitor (it also controls w/s a/v switching) allowing any
digi-box to plug straight into any TV, therefore obtaining maximum audio and
video performance.

As regards transmission power the VHF spectrum for TV transmissions was
abandoned in the 1980s, local to where I live there are two UHF relay
transmitters serving tens of thousands of people with reliable multi-channel
digital TV reception, output power 20 'Watts' each.

US ATSC conversion: with 700 some odd days until NTSC is turned off, you would think that US TV stations would run a dayly counter...
 

Ivan wrote:
Here in the UK the amount of homes with terrestrial digital had reached
almost 9 million (and growing!) six months ago http://www.tiny.cc/dymOd.

And none of those homes, except the lucky few hundred within range of
the London trials, is receiving HDTV.

Set-top boxes can retail at under 20UK pounds

And none of them is outputting HDTV to its owner.

In the US, an overwhelming majority of affiliates for all six national
commercial-broadcast networks (CBS, NBC, ABC, Fox, WB, and UPN), as
well as the national public-broadcast network PBS, has switched to
HDTV via ATSC. Having begun this transition in 1998-1999, US is seven
or eight years ahead of Europe in terms of over-the-air/terrestrial
HDTV deployment and several years ahead of Japan and Australia.

*All* first-run half-hour comedies, one-hour dramas, and theatrical
movies on the broadcast networks, with the notable exception of most
reality shows (except American Idol, whose audience is probably as
large as every other reality shows' combined), have been shown in full
widescreen HDTV for some time, in many cases for years (Smallville
since its launch in 2001; The Tonight Show with Jay Leno since 1999
(!), etc., etc.) Other than the reality shows and daytime soap operas
(which will likely transition last because their inexpensiveness is a
large part of their appeal to networks, and new HDTV sets and cameras
cost money), the last remaining first-run categories that have not yet
yet fully converted over are syndicated shows and the morning and
late-night talk shows.

In terms of cable and satellite (the way 88% of US households receive
their television programs), each of the five major national
premium-movie networks offers at least one 24-hour HDTV channel. About
10 other 24-hour national HDTV cable channels exist.

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