How to change QAM Channel frequency in Win7?

Last post 11-13-2009 12:06 AM by eldis. 22 replies.
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  • 06-14-2009 12:47 PM

    • NoSh2
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    • Joined on 06-14-2009
    • Schwetzingen, Germany
    • New Member

    How to change QAM Channel frequency in Win7?

    When scanning for QAM channels MC finds only a few channels. This is because the channel to frequency mapping is for US and I'm in EU, so there are only stations found on channels that have (nearly) the same frequency as in US. I have tried the workaround with HKLM\SOFTWARE\Microsoft\TV System Services\TVAutoTune\TSxx-y with xx 0 or 49 (for germany) and y 0 to 8 (0 antenna, 1 cable and 2 - 8 because I don't know which QAM is) but no success. So how is the right method to change the Channel to Frequency mapping for QAM?
  • 06-21-2009 5:10 AM In reply to

    Re: How to change QAM Channel frequency in Win7100?

    Is there a fix for germany?
  • 06-22-2009 12:33 PM In reply to

    • bjdraw
    • Top 25 Contributor
    • Joined on 01-27-2006
    • Tampa FL
    • Special Member

    Re: How to change QAM Channel frequency in Win7100?

    Use the "add missing channel" option in settings.
    Ben
    How good can it be, if it isn't HD?
    Engadget HD
  • 06-22-2009 1:08 PM In reply to

    Re: How to change QAM Channel frequency in Win7100?

    Very funny...
    The problem is that the U.S. channel-mapping doesn't match the german cable-channels.

    So there are some channels that do not match any U.S. channel.
    Some do have a frequency between two us-channels.
  • 06-30-2009 10:52 AM In reply to

    • NoSh2
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    • Joined on 06-14-2009
    • Schwetzingen, Germany
    • New Member

    Re: How to change QAM Channel frequency in Win7100?

    Please, where are the microsoft experts?
  • 07-01-2009 11:37 AM In reply to

    Re: How to change QAM Channel frequency in Win7100?

    NoSh2:
    When scanning for QAM channels MC finds only a few channels. This is because the channel to frequency mapping is for US and I'm in EU, so there are only stations found on channels that have (nearly) the same frequency as in US. I have tried the workaround with HKLM\SOFTWARE\Microsoft\TV System Services\TVAutoTune\TSxx-y with xx 0 or 49 (for germany) and y 0 to 8 (0 antenna, 1 cable and 2 - 8 because I don't know which QAM is) but no success. So how is the right method to change the Channel to Frequency mapping for QAM?

    The other problem with this is that, in the US channels are 6 MHz and in the EU they are (mostly) 8 MHz.

    NoSh2, you need to go back through your "Setup TV Signal" and choose a different region. I believe it is the very first question it asks you "is this the correct region". Answer "no" and select the correct region. That should fix the channel problems.

    I hope this helps!
    Mr. Headend, Microsoft Media Center Team

    This posting is provided "AS IS" with no warranties, and confers no rights.
  • 07-02-2009 8:22 AM In reply to

    Re: How to change QAM Channel frequency in Win7100?

    Mr. Headend:
    ...Answer "no" and select the correct region. That should fix the channel problems. I hope this helps!


    Which region will work? Germany doesn't!
  • 07-02-2009 11:21 AM In reply to

    • NoSh2
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    • Joined on 06-14-2009
    • Schwetzingen, Germany
    • New Member

    Re: How to change QAM Channel frequency in Win7100?

    Mr. Headend:
    and select the correct region.

    Because I'm living in germany, I have choosen region germany. After your suggestion I have tried another region "United Kingdom" (out of  262 regions), but after a 2 hours channel search I got the same result.

    Mr. Headend:
    , in the US channels are 6 MHz and in the EU they are (mostly) 8 MHz.

    Thats the problem, we have 8 MHz channels. I need the following frequencies:

    113 MHz // 64 QAM 
    121 MHz // 64 QAM 
    346 MHz // 256 QAM
    354 MHz // 256 QAM
    362 MHz // 256 QAM
    370 MHz // 256 QAM
    402 MHz // 256 QAM
    466 MHz // 256 QAM
    634 MHz // 256 QAM
    642 MHz // 256 QAM
    650 MHz // 256 QAM
    658 MHz // 256 QAM
    666 MHz // 256 QAM
    682 MHz // 256 QAM
    690 MHz // 256 QAM
    698 MHz // 64 QAM 
    706 MHz // 64 QAM 
    714 MHz // 64 QAM 
    722 MHz // 64 QAM 
    730 MHz // 64 QAM 
    738 MHz // 64 QAM 
    746 MHz // 64 QAM 
    754 MHz // 64 QAM 
    762 MHz // 64 QAM 
    770 MHz // 64 QAM 
    778 MHz // 64 QAM 
    786 MHz // 64 QAM 
    794 MHz // 64 QAM 
    802 MHz // 64 QAM 
    
    Frequencies are from the KabelBW service page:
    http://kbwhelpdesk.script-ecke.de/index.php?site=digitalbelegung&legende=o_tv
    Are there any other solutions for the 8 MHz channel subdivision?
     
    Regards, Norbert
     
  • 07-17-2009 5:44 AM In reply to

    Re: How to change QAM Channel frequency in Win7100?



    Hi Mr. Headend,

    as others already mentioned: Settings with other regions than "Germany" won't work.
    Any new ideas?
    Maybe there's a config file to edit?

    Thx
  • 07-17-2009 11:45 AM In reply to

    Re: How to change QAM Channel frequency in Win7100?

    mediamc:
    Hi Mr. Headend,

    as others already mentioned: Settings with other regions than "Germany" won't work.
    Any new ideas?
    Maybe there's a config file to edit?

    Thx

    It looks like Ben is correct:
    bjdraw:
    Use the "add missing channel" option in settings.

    You need to use the 'add channel' option in settings/tv/guide to add the channels. I'm guessing that your cable provider is using frequencies that MC isn't looking at.

    I hope this helps!
    Mr. Headend, Microsoft Media Center Team

    This posting is provided "AS IS" with no warranties, and confers no rights.
  • 07-17-2009 2:48 PM In reply to

    Re: How to change QAM Channel frequency in Win7100?

    No. You are not right.
    We can't add channels, because our physical channels do not match the u.s.-system.
    So Win7 finds every channel that matches the a u.s.-channel. But that's just about 50 %...
  • 08-22-2009 8:53 AM In reply to

    Re: How to change QAM Channel frequency in Win7100?

     Isn't there any new idea?

  • 08-30-2009 1:51 AM In reply to

    Re: How to change QAM Channel frequency in Win7100?

    Where is the frequency list stored? In the new epg database (With Vista MC it was posible to hack the frequencies)? If so is there are description of the db? I read some post of manipulating the db with a commandline tool and xml files.

    Sven

  • 08-30-2009 6:32 AM In reply to

    • bjdraw
    • Top 25 Contributor
    • Joined on 01-27-2006
    • Tampa FL
    • Special Member

    Re: How to change QAM Channel frequency in Win7100?

    No need to hack anything, just use the add missing channel option under setting. You can get the list of frequencies in your area on the HDHomeRun site.

    http://www.silicondust.com/hdhomerun/channels_us

    If you don't want to use the MC UI to enter them one by one, then try Guide Tool, which will pull the same data from the HDHomeRun site automatically.

    http://1geek1tool.com/guidetool

    Ben
    How good can it be, if it isn't HD?
    Engadget HD
  • 08-30-2009 11:20 PM In reply to

    • eldis
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    • Joined on 06-26-2008
    • Helsinki
    • New Member

    Re: How to change QAM Channel frequency in Win7100?

    Please people try to understand that the problem doesn't exist in the U.S. We need to change the frequency table to enable digital cable (DVB-C) in Europe. The frequencies in Europe don't match with the US ones and 7MC only has US frequencies.
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