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Thread: pci hdtv tuner questions

  1. #11
    Maximum Bitrate wi77iam's Avatar
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    Receiving the OTA digital signal requires the receiving antenna be pointed directly at the broadcasting antenna for best reception. Since the signal is UHF, you pretty much need direct line-of-sight. For my home receiver, I use this web site to show the location of the local stations' antenna farm so I can point my antenna.

    In a moving car, this would be almost impossible to maintain proper line-of-sight to pick up the OTA digital signal. So I would recommend forgetting about in-car hdtv.
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  2. #12
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    also curious

    I am also curious if anyone has tried receiving hdtv signals while mobile, and what the results are, maybe someone who has an htpc with hd tuner card can take their pc mobile and test it out . Or someone with money to blow, add it to their carpc. I might do it if I ever get around to building my car pc

  3. #13
    FLAC Jahntassa's Avatar
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    If you bought the ATI HD Wonder (or whatever they call it) all you need is an antenna to pick up the digital broadcasts. It'll show in HD or SD, but it'll be digital. The problem is any antenna you can get for the car won't do too well to pick up the broadcasts unless you're in the general vicinity of the towers (downtown Manhattan, Atlanta, etc.) You don't need a seperate tuner box for the ATI.

  4. #14
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    Quote Originally Posted by wi77iam
    Receiving the OTA digital signal requires the receiving antenna be pointed directly at the broadcasting antenna for best reception. Since the signal is UHF, you pretty much need direct line-of-sight. For my home receiver, I use this web site to show the location of the local stations' antenna farm so I can point my antenna.

    In a moving car, this would be almost impossible to maintain proper line-of-sight to pick up the OTA digital signal. So I would recommend forgetting about in-car hdtv.
    Agreed, your HDTV antenna MUST be pointed towards the broadcasting antennas ( in my case, i would point it west towards manhattan) therefore, your hdtv antenna would have to be on a rotary axis, similar to the satellite dishes they use on boats or RVs for molile satellite (and the equipment costs about $3000). I would check the mentioned site as well, just to see what's in your area, but any hopes of getting a clear CONSISTANT hdtv signal are slim to none while driving

    http://www.antennaweb.org/
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  5. #15
    Variable Bitrate HHdesign's Avatar
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    Quote Originally Posted by Jahntassa
    If you bought the ATI HD Wonder (or whatever they call it) all you need is an antenna to pick up the digital broadcasts. It'll show in HD or SD, but it'll be digital. The problem is any antenna you can get for the car won't do too well to pick up the broadcasts unless you're in the general vicinity of the towers (downtown Manhattan, Atlanta, etc.) You don't need a seperate tuner box for the ATI.
    I have one of the Wonder cards in my computer, and I cant take my eyes off the screen. (Not meaning to de-rail) the topic.

    Whats the point of having HDTV in a car when normally its only being seen on a 7 inch screen or so?
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  6. #16
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    Quote Originally Posted by HHdesign
    I have one of the Wonder cards in my computer, and I cant take my eyes off the screen. (Not meaning to de-rail) the topic.

    Whats the point of having HDTV in a car when normally its only being seen on a 7 inch screen or so?

    i was hoping to get good picture quality tv, since i read in other threads that analog tv was real crappy in the car, even standing still

  7. #17
    Variable Bitrate HHdesign's Avatar
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    If you want good TV quality and have a surplus of cash... http://www.kvh.com/Products/Product.asp?id=79

    I've seen it, its like Direct TV or Dish Direct in your car, really neat thing to have, and the picture (I only saw it on a 19 inch screen) was very good.
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  8. #18
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    HDTV simply means High Defenition. Just by having an HDTV antenna and card does not make you immune to the factors that affect the signal itself. Basically what I mean is that HDTV is still succeptable to "inteference", just like the fuzz we used to see when we had those rabbit ear antennas on TVs. If you take a look at any HDTV with built in tuner, and you view an OTA hd channel, you can usually view the signal strength as well.
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  9. #19
    FLAC Jahntassa's Avatar
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    Agreed..you won't get 'good' OTA tv unless you're right near the transmitters. There's a lot of stuff going against you (buildings, ground..etc). The HD card might not be a good idea, but a standard PCTV card with a good amplified in-car antenna might work.

  10. #20
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    hdtv

    why i would be interested in hdtv in the car, because it you can get a lock on signal the picture will be perfect. with hdtv its either perfect picture or no picture. I thought maybe in certain areas with good hdtv coverage u would have a better chance at a reliable tv signal, no static, lines.

    I've read a lot of comments about it probably being difficult in a mobile application, but still I would like to hear from people that actually tried it, some environments dont have tall buildings blocking/boucing signals around like new york city, so it may actually work pretty good in other areas. I did find this interesting article about mobile hdtv,

    http://broadcastengineering.com/aps/...x_electronics/

    basically saying the current standard is more difficult to lock on to and demodulate in a mobile application

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