HDTV Audio and Anti-Glare

UCLAN wrote:
CLicker wrote:

You really *don't* understand, do you? Channel 49 on your TV is a 6 MHz
wide NTSC analog channel, not even a digital channel. NTSC video uses AM
(amplitude modulation), and its audio uses FM (frequency modulation.)
Only the color sub-carrier uses QAM, and it's analog QAM.

Digital QAM channels have a xx.x or xx-x format on a TV. Analog channels
have whole number channel numbers, with no "." or "-".

You obviously missed the part where Rick said, "Comcast's "box"
translates
49 into 75-9 and 50 into 75-10" and again when he said, "You "tune"
the STB
to 49."

He's not been talking about using the TV's tuner at all.

Sigh...

Go back and read the whole thread. On 10-19 he wrote:

"In the US you can bypass the cable box and go straight to the tv digital
tuner - then you have to surf for the call letters to find out the dash
channels (I use dot myself).

From there, he started saying how he got ESPN and ESPN2 in Clear QAM, so
yes...he has been talking about using the TV's tuner. The fact that his
STB receives the stations in the 531MHz (Ultraband channel 75) group is
irrelevant to what his TV does.

STBs don't
typically utilize sub-channels, and his STB's channel 49 could be digital
or analog. Rick says it's digital and has cited the cable subchannles
tuned by the STB for 49 and 50.

Huh? His _TV's_ channel 49 and 50 are analog.

No.

It was "Comcast's 49 & 50".


Since he was discussing
Clear QAM, he was discussing the TV tuner, not the STB. The sub-channels
were channel 75 sub-channels, unrelated to his TVs channel 49 or 50.

Ok, I've two tv's (not unusual): one with Comcast STB and the other with
QAM. Now is it clear? The Comcast "pseudo channel" is 49 and the "clear
QAM channel" is 75.9.

NEITHER is a "channel" in the analog sense.

-OP

Wes Newell wrote:

He never *did* answer the question: "What makes you think you're getting
ESPN and ESPN2 in Clear QAM?"

He's just trying to educate you.

Nonsensical reply, but I expect that from you.

Since you won't listen to anyone else,
I'll just post this. Pay close attention to the first sentence in Cable
TV. That means they can put anything they want on any number they want.
So if they want to put HBO-HD on clear qam on channel 49, they can damn
well do it. Now, with an old TV without a QAM tuner, you won't be able to
get it. But with a newer TV with a QAM tuner, and the mode set to cable
mode, it should find it on channel 49 as a QAM signal. If it doesn't,
then it's a screwed up tv.

Channel 49 (without a ".x" or a "-X") on a TV will be tuned to 375MHz in
cable's Hyperband. Channel 49 on the cable supplied STB can be tuned to
anything. That's the difference.

http://en.wikipedia.org/wiki/Channel...-M)#Digital_TV

Note the last sentence. That's where "converter boxes" come in.

Cable operators are free to put whatever they want wherever they want?
True, but if they want it viewed on a cable-ready TV, channel 49 better
be an NTSC signal on Hyperband 375MHz. On their STB (converter box), they
can put whatever they want, in whatever format they want.

RickMerrill wrote:

Ok, I've two tv's (not unusual): one with Comcast STB and the other with
QAM. Now is it clear? The Comcast "pseudo channel" is 49 and the "clear
QAM channel" is 75.9.

OK. Answer this simple question:

On the TV with QAM, can you enter "75.9" on the remote and receive ESPN
in the clear? YES____ NO____. In what zip code?

UCLAN wrote:
RickMerrill wrote:

Ok, I've two tv's (not unusual): one with Comcast STB and the other
with QAM. Now is it clear? The Comcast "pseudo channel" is 49 and the
"clear QAM channel" is 75.9.

OK. Answer this simple question:

On the TV with QAM, can you enter "75.9" on the remote and receive ESPN
in the clear? YES____ NO____. In what zip code?

Yes. It is different in every zip code, so check out
http://preview.tinyurl.com/yjxuyyg

"UCLAN" wrote in message
...
On the TV with QAM, can you enter "75.9" on the remote and receive ESPN
in the clear? YES____ NO____. In what zip code?

I can on my digital TV tuner. ESPN SD is on 85-1 and ESPN2 is on 85-11.
Clear QAM. 60504.

I'm not sure it will stay that way though. Comcast recently moved their
Expanded Basic channels from analog to digital so I have a box now. My
guess is that over time they will slowly move those channels to their more
premium package requiring decryption.

For the moment, they apparently wanted to upgrade their remaining Expanded
Basic analog customers with tiny and cheap "free" Digital Adapter boxes that
aren't capable of decrypting like the regular STBs.

Bruce.

RickMerrill wrote:

Ok, I've two tv's (not unusual): one with Comcast STB and the other
with QAM. Now is it clear? The Comcast "pseudo channel" is 49 and the
"clear QAM channel" is 75.9.

OK. Answer this simple question:

On the TV with QAM, can you enter "75.9" on the remote and receive ESPN
in the clear? YES____ NO____. In what zip code?

Yes. It is different in every zip code, so check out
http://preview.tinyurl.com/yjxuyyg

Typical Comcast analog tier.

Don't know why you gave that URL. It says NOTHING about 75.9.

[BTW, you left your zip code in the search area. So much for secrecy.]

"UCLAN" wrote in message
...
CLicker wrote:

Sigh...

Go back and read the whole thread.

Good idea. Pehaps, when you do, you might comprehend it.

On 10-19 he wrote:

"In the US you can bypass the cable box and go straight to the
tv digital tuner - then you have to surf for the call letters
to find out the dash channels (I use dot myself).

Tuesday, October 20, 2009 3:40 PM

Rick: I don't "do" comcast channels.
(but they happen to be 49 and 50)

Wednesday, October 21, 2009 11:14 AM

UCLAN, in a moment of transparent honesty: Now I *am* confused.
Are they 49 & 50, or are they 75.9 & 75.10?

Rick: Sorry, I thought you knew: Comcast's "box" translates 49
into 75-9 and 50 into 75-10 ( a sub-channel 10 of QAM
"channel" 75 ).

Wednesday, October 21, 2009 1:41 PM

Rick: You "tune" the STB to 49, BUT the box has been trained by
Comcast to know that in my area (E. MA) ESPN is actually on
QAM frequency/channel 75.9.

- - - - - - - - - - - - - -

However, despite the evidence, you will continue to rant about
this inconsequentiality until everyone else gives up - so that
you don't have to say: I'm sorry, I was wrong.

CLicker wrote:

However, despite the evidence, you will continue to rant about
this inconsequentiality until everyone else gives up - so that
you don't have to say: I'm sorry, I was wrong.

LOL! Wrong about what? I have maintained all along that whole numbers
tuned by a TV like (49 and 50) *cannot* be QAM digital channels since
they are NTSC analog channels. As it turns out, I was right. Or do you
still maintain that his TV was tuning Clear QAM on channels 49 & 50?

CLicker wrote:

Tuesday, October 20, 2009 3:40 PM

Rick: I don't "do" comcast channels.
(but they happen to be 49 and 50)

Hint: 75.9 & 75.10 are "Comcast channels" as well.

Wednesday, October 21, 2009 11:14 AM

UCLAN, in a moment of transparent honesty: Now I *am* confused.
Are they 49 & 50, or are they 75.9 & 75.10?

Rick: Sorry, I thought you knew: Comcast's "box" translates 49
into 75-9 and 50 into 75-10 ( a sub-channel 10 of QAM
"channel" 75 ).

Which we all know is (at best) backwards, and probably totally wrong.
If the box translated 49 into 75-9, how does ESPN show up on 75-9
*without* using a box? The box *might* translate 75-9 into 49, but that
wouldn't explain how ESPN shows up on a TV's channel 49 *without* a box.

Wednesday, October 21, 2009 1:41 PM

Rick: You "tune" the STB to 49, BUT the box has been trained by
Comcast to know that in my area (E. MA) ESPN is actually on
QAM frequency/channel 75.9.

This would mean that the box translates the incoming signal to its
channel 49, the opposite of what he wrote at 11:14 (above.) It is
also irrelevant to my question of "Clear QAM" on his TV's channel
49 & 50.

That was (and continues to be) my contention: The TV will not tune
"Clear QAM" (or any QAM) on whole number channels. The TV is looking
for AM modulated video carriers and FM modulated audio carriers on
whole number channels, not QAM modulated carriers.

"UCLAN" wrote in message
...
CLicker wrote:

However, despite the evidence, you will continue to rant
about
this inconsequentiality until everyone else gives up - so
that
you don't have to say: I'm sorry, I was wrong.

LOL! Wrong about what? I have maintained all along that whole
numbers
tuned by a TV like (49 and 50) *cannot* be QAM digital
channels since
they are NTSC analog channels. As it turns out, I was right.
Or do you
still maintain that his TV was tuning Clear QAM on channels 49
& 50?

Little old lady, clipping out the evidence doesn't make you
right;-0)

Whole numbers tuned by a TV are most likely NTSC, they are here.
Only whole numbers are displayed by STBs here, yet all of the
streams tuned by them are digital - however the STB will output
analog, if one connects via composite, s-video, or componenet.

Rick is "tuning" 49 and 50 on his STB - and they'd be digital
here in northern Orange County, CA using TWC digital tuners. As
cited in the part of the message you chose to discard, on his TV
he's tuning 75.9 and 75.10 - and you know that from reading the
thread. But for some reason known only to you, you've decided
to make up some issue that doesn't exit and argue it into
numbness? There must be a name for this malady, if only I
cared;-)