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Comcast QAM + PC Digital tuner

Discussion in 'Community Broadband & Computers' started by merky1, Dec 26, 2007.

  1. merky1

    merky1 Member

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    I was wondering if anyone here know where I can go to find a mapping of Comcasts digital channels and their frequencies. It seems that comcast continues to embrace federal directives by failing to provide the channel info in the digital stream. This makes using a home built system harder to use. I have the analog channels all ready working, I just need to figure out which frequencies go to which channels.

    Thanks.
     
  2. boomertsfx

    boomertsfx Booyakasha!

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  3. merky1

    merky1 Member

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    Well, after a year of dabbling, I have had moderate success with decoding Comcast channels to QAM frequencies. For the linux nuts out there, here is a channels.conf for use with Mplayer (with DVB compiled in). Not complete, but I figure its a start. The stations that have the station ID are the digital rebroadcasts of the analog stations.

    Code:
    240:511775500:QAM_256:351:352:15
    236:517775800:QAM_256:231:232:8
    235:517775800:QAM_256:131:132:7
    239:517775800:QAM_256:331:332:9
    223:523776100:QAM_256:201:202:2
    229:523776100:QAM_256:301:302:3
    231:541777000:QAM_256:211:212:5
    250:541777000:QAM_256:111:112:4
    237:553777600:QAM_256:341:342:12
    241:553777600:QAM_256:241:242:11
    225:553777600:QAM_256:141:142:10
    18:559777900:QAM_256:2041:2040:107
    187:559777900:QAM_256:2025:2024:111
    20:559777900:QAM_256:2021:2020:112
    7wjla:565778200:QAM_256:2062:2061:201
    9wusa:565778200:QAM_256:2058:2057:202
    33fx:565778200:QAM_256:2055:2054:203
    22wmpt:565778200:QAM_256:2051:2050:204
    21cn8:565778200:QAM_256:2047:2046:205
    20wdca:565778200:QAM_256:2044:2043:206
    16ion:565778200:QAM_256:2041:2040:207
    15wmdoca:565778200:QAM_256:2038:2037:208
    10csndc:565778200:QAM_256:2035:2034:209
    232:565778200:QAM_256:2031:2030:210
    12espn2:565778200:QAM_256:2026:2025:211
    66wzdclp:565778200:QAM_256:2022:2021:212
    290:571778500:QAM_256:2017:2016:511
    146:577778800:QAM_256:2030:2029:608
    42:595779700:QAM_256:2062:2061:701
    43:595779700:QAM_256:33:32:702
    45:649782400:QAM_256:2048:2050:3304
    273:667783300:QAM_256:3216:3217:3201
    121indemand:679783900:QAM_256:2366:2367:2311
    244:685784200:QAM_256:181:182:22
    245:685784200:QAM_256:281:282:23
    211:721786000:QAM_256:1816:1817:1801
    208:721786000:QAM_256:1821:1822:1802
    9wusa:721786000:QAM_256:1826:1827:1803
    203:721786000:QAM_256:1831:1832:1804
    206:727786300:QAM_256:1621:1622:1602
    148:727786300:QAM_256:1626:1627:1603
    149:727786300:QAM_256:1631:1632:1604
    150:727786300:QAM_256:1636:1637:1605
    151:727786300:QAM_256:1641:1642:1606
    152:727786300:QAM_256:1646:1647:1607
    215:727786300:QAM_256:1616:1617:1601
    210:733786600:QAM_256:1716:1717:1701
    205:733786600:QAM_256:1721:1722:1702
    204:733786600:QAM_256:1726:1727:1703
    220:733786600:QAM_256:1731:1732:1704
    200:733786600:QAM_256:1736:1737:1705
    201:733786600:QAM_256:1741:1742:1706
    202:733786600:QAM_256:1746:1747:1707
    213:739786900:QAM_256:1516:1517:1501
    214:739786900:QAM_256:1521:1522:1502
    178:763788100:QAM_256:2432:2433:2
    149:799789900:QAM_256:2624:2625:3011
    
     
  4. boomertsfx

    boomertsfx Booyakasha!

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    are the cable channels encrypted or can you actually get like ESPN HD on the PC?
     
  5. merky1

    merky1 Member

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    I have not seen ESPN HD yet... but comcast just did a refactoring of their digital channels, so I need to "rescan" the channels.

    I know espn2 is in digital format, but its just a rebroadcast of the analog channel.

    As for the encryption, the channels are in clear QAM, which works with most HD tuners.

    I've got two different tuners (under linux). One from pchdtv.com and one from Pinnacle.
     
  6. VT Brad 98

    VT Brad 98 New Member

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  7. twiseva

    twiseva New Member

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    SO about a day or so ago ALL of my unencrypted channels (except OTA ones) disappeared from clear QAM. Discovery, Sci Fi, etc ... anyone else seen this? Comcast. Sigh.
     
  8. boomertsfx

    boomertsfx Booyakasha!

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    I would ask on AVS... but did you re-scan to see if they just moved them to different frequencies hopefully (and not just encrypted them)?


    Were any of the channels now missing in HD?
     
  9. wahoogeek

    wahoogeek New Member

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    Yep, same here. The only one still in the same spot is Discovery HD Theater. Do a scan and let us know what you find.

    Boomer - yes, these are the HD channels that they've moved/removed. Use to get just about all of the HD channels in the clear (no ESPN tho').
     
  10. boomertsfx

    boomertsfx Booyakasha!

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  11. twiseva

    twiseva New Member

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    Yes, this was meant to be out in Fiji (TV Pack) but didn't make it. At least there are hardware pictures out now so there is hope. Does anyone know if the HD recievers for Comcast have component out that has not yet been restricted or turned off? I am considering grabbing one of those and feeding the component out into VMC (FIOS is still doing this).

    Of course, at some point the companies are also going to close this option out -- hopefully after DirectTV for VMC is available.
     

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