AVS Forum banner

1 - 20 of 6356 Posts

·
Registered
Joined
·
5,001 Posts
Discussion Starter #1
Here is a summary of what is available in the greater Houston area for HDTV:

Over-the-Air
The main antenna farm is located in the southern part of town (near Sugarland/Missouri City), about 14 miles Southwest of downtown. I personally use an attic-mounted Channel Master 4-bay bowtie antenna connected to a Channel Master 7777 pre-amp and have no problems with reception (note: you do lose some sensitivity by using an attic mount) from deep inside the loop.


Update: With the help of Bob Chase, I found that my original set-up was overdriving my HD Tivo. As a result, I am now only using the CM4221 in my attic.


Station Offerings: (last update 7/9/06)
  • Call Sign (Network, Network HD Standard) - Analog Channel, Digital channel
    Sub-channel details

  • KPRC (NBC, 1080i) - Analog: 2, Digital: 35

    Contact: Edgar Zavala (AVS UserID: kprcdt) - [email protected]
    2-1 - HDTV (1080i)

    2-2 - NBC WeatherPlus(tm) (480i)
 

·
Registered
Joined
·
5,001 Posts
Discussion Starter #2
Wow, number 2000.

Time Warner Cable
QAM-encoded channels currently reside in two blocks: 79 - 94, and 100 - 116. TWC seems to encrypt almost their entire channel range, so folks looking to use a "clear QAM" tuner should probably save their money. However, if you've had better success, please let me know. Thanks!
 

·
Registered
Joined
·
704 Posts
Noticed last night that channel 11 has added 2 sub-channels. I did not see if there was any degradation of HD due to the fact that they aired no HD last night. I hope not . CBS has the best HD signal OTA.
 

·
Registered
Joined
·
120 Posts
WJG--

Where in Spring are you?

I recentlly moved to Spring, cant get TWC, and have to have Sat. What antenna do you use to pick up the OTA signals?
 

·
Registered
Joined
·
2,912 Posts
Anybody having problems with audio from KHWB during HD broadcasts? I've never had a problem in the past but since I started tuning in for the new fall season none of the HD shows have audio. Audio is fine during SD broacasts and I have no problem with other stations, but as soon as KHWB flips the switch to HD I lose audio.
 

·
Registered
Joined
·
260 Posts

Quote:
Originally posted by wjg
Noticed last night that channel 11 has added 2 sub-channels. I did not see if there was any degradation of HD due to the fact that they aired no HD last night. I hope not . CBS has the best HD signal OTA.

I am watching LSU vs. GA right now and there is a lot of macro blocking when there is motion with closeups where one color like the red jerseys dominate the the screen. I am not sure if this is local or not but I hope its not a result of the new multicasting on KHOU-DT.
 

·
Registered
Joined
·
704 Posts

Quote:
Originally posted by JeffU
I am watching LSU vs. GA right now and there is a lot of macro blocking when there is motion with closeups where one color like the red jerseys dominate the the screen. I am not sure if this is local or not but I hope its not a result of the new multicasting on KHOU-DT.

Jeff,


I think you hit the nail on the head. Last night Joan of Arcadia looked like a bad Godzilla movie with awful lip sync problems. and I also noticed it during the Ga-LSU game today during the commercials. The game was the worst offering I have ever seen on channel 11. It was like watching through the proverbial " Screen Door" . There is no doubt in my mind it is caused by the sub-channels. Does anyone have an email address for ch 11 ?? Maybe a phone # to an engineer ?? When this was happening on ABC 13, it took a while to get it fixed.
 

·
Registered
Joined
·
5,001 Posts
Discussion Starter #9
Click the link above in the first post for information on addresses and telephone numbers. In the linked page, you will find a link to the FCC registration info. There may be contact info for the chief engineer buried in the registration info (haven't really mucked around in there).


Later,

Bill
 

·
Registered
Joined
·
704 Posts

Quote:
Originally posted by Ursa
Click the link above in the first post for information on addresses and telephone numbers. In the linked page, you will find a link to the FCC registration info. There may be contact info for the chief engineer buried in the registration info (haven't really mucked around in there).


Later,

Bill

Bill,


Good suggestion. They have a direct link called " 11 Listens ". I suggest that everyone email them and complain. I really like all the football and most of the prime time shows on Cbs. It would be a shame to have to watch them all through a screen door for the rest of the season.



Bill
 

·
Registered
Joined
·
142 Posts
Checked all these this afternoon...


KPXB (PAX) analog channel is on 49. Digital on 5 offers 4 subchannels:

49-1, 49-2, 49-3, and 49-4. I can only receive them at night. I suspect they are very low power.


KHOU is the CBS affiliate, not ABC. CBS network standard is 1080i. Channel 31-1 is 1080i.


KTRK is the ABC affiliate, with 720p as the network standard. 32-1 is 720p. 32-2 broadcasts ABC News Now much of the time.


KTXH digital subchannel is 19-1, not -2. I doubt it is 1080p.


KETH analog channel is 14. There are 4 subchannels on digital channel 24: 14-1, 14-2, 14-3, and 14-4. This is another station I can only receive at night.


KRIV digital subchannel is 26-1.


KHWB digital subchannels are 39-1 and 39-2.


KXLN digital subchannels are 45-1 (SD) and 45-2 (no data transmitted)


KTMD analog channel is 47. The digital subchannel is 48-1.


KNWS digital station is supposed to be on 52, according to the station engineer, but I have never received it.


KAZH digital subchannel is 57-1.



Not listed:

KFTH (Telefutura, ??) - Analog: 67, Digital: 36

67-1 - SDTV (480i)

67-2 - no data transmitted.
 

·
Registered
Joined
·
142 Posts
Rumors and innuendos:


KTBU (Ind.) - Analog 55, rumored for digital 42


KLTJ (Daystar) - Analog 22, rumored for digital 23
 

·
Registered
Joined
·
5,001 Posts
Discussion Starter #13
Frank - Thanks for double-checking. Also, check my taxonomy. You seem to be checking for digitals where there should not be any. I did make a couple of the edits tonight. Realistically, my Sasem tuner is not the most accurate when it comes to info (good picture, though), so my stuff was suspect. I guess that's why I sold it. Some thoughts:
  • KRIV-DT cannot be on 26 (it's the analog channel). The FCC lists them at 27, and they ought to have three sub-channels (only one when I went past them - a football game. I'll stick with my tuner's results on the prime channel on this one. Also, maybe they feed the cable guys differently than everyone else? Are the local MSOs pulling Fox from analog, rather than digital?
  • I don't think KTXH is in 1080p either, but that's what my tuner showed.
  • KHWB is on 38, not 39 (39 is the analog station). It should be 38-1 and 38-2, but again, my tuner is suspect. Also, two 1080i broadcasts should be a complete waste of bandwidth...
  • KXLN-DT is registered to channel 46 (45 is the analog). I don't really watch this one, so if someone else can check, I'd appreciate it.
  • Good catch on KTMD.
  • KNWS is lsited at 77kW. Not really much of a signal, there.
  • Thanks for KFTH. I didn't pick them up on my gear.


I'll continue cleaning the list later.


Later,

Bill
 

·
Registered
Joined
·
142 Posts
Bill,


The actual frequency the digital channel broadcasts on (the digital channel) and the numbers assigned to the "digital subchannels" do not necessarily have any relationship. The digital subchannels are just labels, with NO bearing on the frequency used.


The intent was that the digital subchannel labels would match the channel number of the analog station, since most broadcasters felt they have a great deal of "brand equity" in their analog channel numbers. (How many times have you heard "Channel 11 News" in the Houston market?)


ATSC receivers are supposed to be able to take the digital subchannel numbers and associate those with the correct analog channel.


[Local stations have been known to mess up their subchannel numbers as well. Several local stations started out transmitting a subchannel number that matched the frequency their digital station was on, not their analog one.]


Barring typos, the digital subchannel numbers I gave in Sunday's posting were correct as transmitted at the time I checked on Sunday.


I don't understand your comment: "You seem to be checking for digitals where there should not be any."


KRIV-DT transmits on channel 27. The digital subchannel number is 26-1.


KHWB-DT transmits on channel 38. The digital subchannel numbers are 39-1 and 39-2.


KXLN-DT does transmit on 46. Their subchannel numbers are 45-1 and 45-2 (as they should be...)


With that, I note that the subchannel numbers for 2, 8, 11, and 13 are also incorrect.


KPXB digital is 5. KPXB analog is 49. IIRC, their analog transmitter is located in Montgomery County.
 

·
Registered
Joined
·
5,001 Posts
Discussion Starter #15
Frank - I guess my tuner is very different then. It shows merely the sub-channels themselves, not any kind of PSIP-type data for the subchannel (I get a drop-down box since it is PC-based). For simplicity's sake (for those of us with more basic tuners), I'd rather keep the list at the physical level than at the branding level (you'll notice that per your suggestion, my entire list would be incorrect...).


btw, which tuner are you using?


Later,

Bill
 

·
Registered
Joined
·
444 Posts

Quote:
[*]KHWB is on 38, not 39 (39 is the analog station). It should be 38-1 and 38-2, but again, my tuner is suspect. Also, two 1080i broadcasts should be a complete waste of bandwidth...

KHWB doesn't send two 1081i broadcasts because there is only one stream sent from KHWB. In the PSIP table, 39.2 tells your tuner to use the second audio program (SAP) instead of the normal audio program. Basically it swaps the audio for you. Friends, Raymond, and other some other shows have Spanish on the analog SAP channel and on 39.2. Most of the time, 39.2 is actually mono English. Or as they say in the movies "No bandwith was actually harmed in the making of this program"
 

·
Registered
Joined
·
52 Posts
Sugar Land, TX - HDTV


I am trying to figure out what antenna to use to catch OTA HDTV signals at my house in Sugar Land. Antenna will go in attic of 2 story house. Tall trees (30'+) around the house.


I am trying to decide between a DB2 or DB4 from antennadirect.


Here's are the stations that I am interested in:

* red - uhf KZJL-DT 44 SAH HOUSTON TX 100° 10.5 44

* red - uhf KTXH-DT 19.1 UPN HOUSTON TX 99° 9.9 19

* red - uhf KRIV-DT 26.1 FOX HOUSTON TX 93° 10.7 27

* red - vhf KUHT-DT 8.1 PBS HOUSTON TX 93° 10.7 9

* red - uhf KNWS-DT 51.1 IND KATY TX 99° 10.4 52

* red - uhf KTRK-DT 13.1 ABC HOUSTON TX 93° 10.7 32

* red - uhf KHOU-DT 11.1 CBS HOUSTON TX 99° 10.4 31

* red - uhf KHWB-DT 39.1 WB HOUSTON TX 96° 10.4 38

* red - uhf KPRC-DT 2.1 NBC HOUSTON TX 96° 10.4 35


Any sugggestions?


Also, if I go with a UHF only antenna like the DB2 or DB4, would I be able to receive KUHT (frequency assignment 9)?
 

·
Registered
Joined
·
142 Posts

Quote:
Originally posted by Ursa
Frank - I guess my tuner is very different then. It shows merely the sub-channels themselves, not any kind of PSIP-type data for the subchannel (I get a drop-down box since it is PC-based).

Bill, The major channel number (the "2" part of "2-1", for example) is encoded in the one of the most basic of the control tables required by the ATSC standard, the Virtual Channel Table.


The ATSC publication PSIP Implementation Guidelines for Broadcasters [ http://www.atsc.org/standards/a_69.pdf ] states that the broadcaster should set the major channel number to the same value as the NTSC (analog) channel assignment, if such a paired NTSC channel exists.


For receivers, it states: the DTV receiver does not automatically use the physical channel number of an active channel to identify the channel. Instead, the receiver looks at the major channel assignment in the channel�s VCT and utilizes that number as the major channel number for the station.

Quote:
For simplicity's sake (for those of us with more basic tuners), I'd rather keep the list at the physical level than at the branding level (you'll notice that per your suggestion, my entire list would be incorrect...).

That is your prerogative. I would argue it is technically incorrect, but it is your list.

Quote:
btw, which tuner are you using?


Later,

Bill

The Samsung SIR-T165.



Just as an example, I think KPRC should look like this:
  • KPRC (NBC, 1080i) - Analog: 2, Digital: 35

    2-1 - HDTV (1080i)

    2-2 - SDTV simulcast (480i)
 

·
Registered
Joined
·
10 Posts
I live about 4 miles west and a bit south of the towers in Missouri City. No problem with any channel except ABC-KTRK. I've had the problem with a low signal which won't stayed locked in. It has been going on for over a year. I've tried a few different antennas and two different HDTV tuners - same result. Occaisionally, it will lock in and stay for awhile - but not last two Monday Night Football games. Any ideas?
 

·
Registered
Joined
·
5,001 Posts
Discussion Starter #20
Frank - actually I'll go with the group on this. I just know that on the PC end of things (where I am), proper PSIP implementations are few and far between (the only ones I have not tried are the HiPix and MyHD versions). If it's not too confusing to see the virtual mapping, I'll edit the lead post.


The group's thoughts? (I created this post to be useful to the community - I'm pretty stuck/set with my own hardware...).


Minja - a good 4-bay bowtie or better antenna will be fine for KUHT within reason. The "high VHF" channels can generally be received fairly easily by the good quality UHF designs. Of course, if some channels go back to their original VHF channel assignments once the dual broadcast transition period is over, then we'll all need to buy better VHF antennae to continue getting KPRC.


Later,

Bill
 
1 - 20 of 6356 Posts
Top