blackbeauty

Piggie

Well here is some brand new news from WLS. They have applied to put a Ch 32 digital translator right in the middle of their Ch7 contour. Never heard of anyone doing that. They just filed so they have to be approved.
http://fjallfoss.fcc.gov/prod/cdbs/f...911&q_num=5370
http://fjallfoss.fcc.gov/prod/cdbs/f...346&q_num=5100
http://fjallfoss.fcc.gov/prod/cdbs/f...346&q_num=5110


WCIU has a Construction Permit TV Query Results -- Video Division (FCC) USA

To run Elliptical (H > V) which means more Horizontal than Vertical radiation. Basically it's for better reception in tall buildings, make it less critical which way your antenna is oriented to a degree.

Explaining polarization is a long topic.
This gets rather technical but you can read around that part
Polarization - Wikipedia, the free encyclopedia
Circular Elliptical Polarization for TV, by Doug Lung

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Piggie

I presume you mean you are also in Chicago?

Can you go here and put in your address and how high off the ground your antenna sits? TV Fool

Also tell us what type of antenna you have.

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mookiemookie

did anyone catch the channel 7 powerup last night between 6:30 pm and 10:30 pm... along the lakefront in the city channel 7.3 was the best of the three channel 7's channels 7.1 and 7.2 were better pitcher but still have some pixelation issues.....

abc/ fcc need to get on the ball and fix this asap...


also have we figured out of the power up of the channel 26's is going to happen in august of 09???



thanks to all and a good july 4th to all



mookie

Wheezer

Hello, all. I'd just chime in here that I'm in a Chicago neighborhood that suffers dreadful VHF multipath, about 8 miles from the transmitters, and I've had excellent success on both VHF-hi and UHF with about 3 feet of plain twin-lead hanging off a 75-to-300 ohm connector. This is in three locations (including one basement apartment) and with both Zinwell and Zenith converters. The only elusive catch is WYIN out of Gary.

It ain't purty, but it's a very cheap experiment.

mookiemookie

hello all.. hope you had a great forth of july.... interesting thing happened over the weekend... besides our usual problems with channels 7 and 26's.. now i have a problem with channel 9... broke up on friday and have not been able to get since then...


do we know when the 7 and 26 issue are going to be resolved and anyone else have the trouble with 9???


thanks guys and gals... look forward to hearing from you....



mookie

mookiemookie

i have a question that i am asking for a friend of mine who has direct tv in there condo and no directtv box...


they get there direct tv in bulk thru the building...


they love baseball and would love to watch the national game of the week that is on tbs every sunday... however when these games come on even if they do not involve there local team the games are blacked out... why is that.. i thought unless they are from there local market that they are suppose to get the games....


please let me know so i can pass this along to them...


thanks


mookie

Don_M

Telecast blackouts are a complicated business; saying anything more would be pure speculation on my part. Your pals would be well advised to contact either TBS or DirecTV (maybe both!) to find out why this happens in Chicago.

Piggie

Do you know if you are watching WLS signal you were watching was on RF 7 or thier new STA for ch 32 ?
WLS files for UHF Translator inside their VHF coverage

Also as far as reception of the signal from a station you either get it or not with digital, unless you live on the edge and breaks up.

When you receive it you receive the entire 19 mpbs stream at once. Your choice of which subchannel is shown on the screen it your choice as the other channels are there, but not being decoded.

So one sub channel can't come in better than another one. You either get them all or none of them.

What you are seeing though is real, and it can be one of two things. If it varies by the program shown, it's probably the program they are showing. If the blocking and pixelization follows a sub channel then it's because the aren't sending full bandwidth to that sub channel. This doesn't mean they can just add bandwidth to a sub, they may not have it available having used it on another sub on the main program content.

Go here RabbitEars.Info
Then click on "Technical Data and Screencaps" in the yellow area.
Look for the column "Video Bitrate"
You can see how much of their fixed 19 mbps they give each program source they transmit.

Notice that 7.2 is the Livwell network being shown in 16:9 720p with only 2.6 mbps. There is NO WAY IN HECK they can do this without mega blocking garbage to the screen. 16:9 720p look best up around 14 mbps but can be cut to about 9 and not break up, but not be as sharp of picture quality. When you drop that to 2.6 mbps like they are doing you end up with more blocks than picture.

7.3 doing 480i with only 2mbps is cutting it close. 480i starts looking ok between about 3 to good at 4 mpbs. But I bet 7.2 looks worse than 7.3

If 7.3 is just the SD version of 7.1, they are totally shooting their own foot, and should give that room to 7.2 though even that would not be enough but better.

I don't have a clue about 26, Trip heard something at one point that is in this thread farther back.

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Trip

Piggie: My Chicago data is outdated. I don't have a contact in the area, and so that data is from when 7-2 was in SD. I think 7-1 should now be closer to 11 Mbps and 7-2 around 5.5 Mbps, just based on what the other ABC O&O stations look like.

As far as I know, channel 32 is not yet on the air. SiliconDust doesn't show it.

WCIU's power increase will happen when it happens. The guy from WCIU on the AVS thread won't give you a straight answer because he can't give one. There are too many variables involved.

- Trip

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Comments are my own and not that of my employer or anyone else.