WISN ch 12 transmitter

[ReesR]

Transmitter is installed.

Depending on the weather this coming weekend, 10/12, my source tells me to start watching for a carrier.  Then further testing next week and possible programming to start prior to official announcement.

It was also confirmed WISN-DT will be 24/7 and will be doing upconverting of local originations.  They are doing it right!!  I tip my hat to them.

This is fantastic news.

Super bowl......here we come!!!!!!!



------------------
Rees Roberts
Racine, WI
reesr@wi.net

HDTV Receiver:  Sony KD-34XBR2 16X9
Bi-directional AntennaCraft VHF Yagi Model #2260P
+
2 Winegard PR9022 UHF yagi's pointing N & S
Antennas at about 30 feet

[Matt Heebner]

I almost cant wait for January!!!! Man I am soooo hyped that the SuperBowl is gonna be HD!!!!!!!!
Also excited to see another HD station on the air!

Matt

[Joseph S]

Alias and The Practice are on every Sunday night 8PM to 10PM.

I hear it's best to test at these hours due to the lack of interference from UFOs. No need to bother with the test patterns until after 10PM.  

[Matt Heebner]

Test patterns are a good thing actually. Thanks to CBS's test pattern in 1080i, I was able to adjust my overscan in HD mode on my TV. Otherwise you have to have a HD signal generator to do these things. But after 10pm is probably a good time to send out a test pattern.  

Matt

[gparris]

 

Originally posted by Joseph S:
Alias and The Practice are on every Sunday night 8PM to 10PM.

I hear it's best to test at these hours due to the lack of interference from UFOs. No need to bother with the test patterns until after 10PM.  

Is it going to be trasmitted at 720P not 1080i ? If so, will my DTC-100 pull it off the air at 720P? Worse : will my Mitsubishi HD ready set with only 1080i inputs upconvert it to 1080i??
Question for all or any Mits set owners     ( since I will be replacing this one soon with a larger IEEE one ) : Do all the Mits sets display a 720p signal even though they are not so labeled in the back? ABC has 720p as I understand it not 1080i like the rest of the networks, so what will happen-480p?
Please let me know what to buy..Thanks guys!

[mcq]

Found this in a review somewhere. I kinda knew this but had to look it up again.

"The DTC also does not output 720p resolution; it up-converts such resolutions to 1080i for output. This isn't too bad a deal, since most affordable HD-ready televisions can't display 720p anyway. It's also a subjunctive matter whether 720p looks better then 1080i. Either way, both resolutions make ordinary TV look pale in comparison."

[Pat]

To answer gparris' question, no, the MITS will not display a 720P signal.  It, like virtually all other sets, requires the receiver to upconvert to 1080i.  I believe all receivers will do the upconvert, including the venerable DTC-100.

Panasonic's first HDTV would display 720p, but their recent models do not.

Incidentally, I think 720p is a higher data rate than 1080i, so maybe it should be called down-convert.  A 720p signal is 720 lines of ?? pixels, 60 times per second, while 1080i is 540 lines of ?? pixels, 60 times per second.  I suppose the number of pixels at 720p could be so much lower than 1080i's that the data rate would be comparable or lower, but I seem to remember that is not the case.

[This message has been edited by Pat (edited 10-04-2002).]

[MesaV]

Here you go, 1080i vs 720p: http://alvyray.com/DigitalTV/Naming_Proposal.htm

[kjnorman]

   

Originally posted by MesaV:
Here you go, 1080i vs 720p: http://alvyray.com/DigitalTV/Naming_Proposal.htm

There are some dubious statements made in that article and it reads like it was written by a FOX executive to justify that 480P is better than 1080i.

It is a reasonable article to show the difference between interlace and progressive scanning, but I draw the line at where it states that 1080i total resolution is only 540 lines.

While technically correct that in any one scan only contains 540 active lines, when considering the total screen area you have to remember that the active lines are out of phase on each scan (odd - even - odd - even etc).  Therefore the perceived resolution to the eye is 1080 lines.

But this argument could go on for ever...

Long live the day when 1080P is a reality.

Kerry

(Anyway this post was slightly off topic.  Sorry about that.)

[This message has been edited by kjnorman (edited 10-07-2002).]

[gparris]

I thank all of you for the assistance in explaining all of this 720p and 1080i display but I thought that 1080i was chosen for two things : One, for the bigger is better to the confused consumer(1080i sounds like more than 720p "the big sell") and Two, that the 1080i is better for moving pictures like those that will eventually sell the whole HDTV concept to everyday consumers and those that will be the first to buy them -like the first dozen million or so-not just the 3-4 million like now: SPORTS FANS-who thrill at the picture as like "being there"

Question 1: So is ABC Disney the only network that is doing 720p?
 AND 2: If so, whenever Channel 12's digital (34?) goes on line with the TWC system    (in 2025?), like PBS and NBC (soon and confirmed), will the QAM system TWC uses make the 720p a moot point and have everything upconvert to 1080i anyway right out of the SA box (like the DTC 100)

AND 3:By the way, I too, dream of the day when everything is 1080p and at (28Mps?),if I have that right...correct me and advise if this ever will be possible...anyone?
Or should I just go out a spend a small fortune on a Faroudja processor for cable and/or satellite pictures (like I have with my DVD systems)?

[Pat]

Some people are sensitive to the flicker introduced by interlaced scanning of 1080i.  Even when it's not consciously noticable, it's still perceived, especially for horizontal lines -- that's why progressive scan DVD players look better than interlaced.  So ABC is technically correct, in my view, but it looks like 1080i will win out for marketing reasons -- it sounds better, as gparris noted.

I believe 1080p is not one of the 18 formats supported by the ATSC, so its unlikely to ever be broadcast.  I agree with Kerry that 1080i is better than 540p.  There is a distinct set of information from each set of 540 lines. All 1080 can be different, but you would notice flicker in that case.

[borghe]

First, as has been said before, 1080i still has more pixels on the screen during a single refresh than 720p. Second, even though 1080i has only half the lines on screen during a refresh, 1080i still has a much higher preceived image quality than 720p. The main problem with 1080i "seems" to be (from most accounts) that on high motion fine detail programming, sports for example, The interlacing can lead to image loss. However for most medium to low motion content, the detail gained from 1080i will almost always outweigh the stability of the picture in 720p.

And for those who were wondering if the data rate is higher for 720p, when dealing with compressed video, there is no such thing. The video is transmitetd at xxMbps no matter what resolution. A 1080i signal is the same "size" as a 720p signal when compressed at the same data rate. The best example is "What weighs more, a ton of feathers or a ton of bricks."

As for which I prefer, I will always take the higher resolution picture, except for in very few instances.

[This message has been edited by borghe (edited 10-07-2002).]

[Pat]

I was the one referring to the data rate, and although borghe is correct about the transmission data rate, I was referring to the display's data rate.  As he implies, the transmission can be compressed none, a little, or a lot without regard to the data.