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Aligning a SWM satellite dish

Discussion in 'DIRECTV Installation/MDU Discussion' started by plmahlik, Jun 10, 2013.

  1. plmahlik

    plmahlik New Member

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    Jun 22, 2009
    I am helping a friend relocate his SWM satellite dish. We are aligning it up to DirecTV satellite 101 and are only getting signals on transponders 28, 30 & 32. The rest read zeros. Also all other satellites read zero. I don't understand why we get 3 transponders to show signal strength and not the rest. Thanks, Larry
     
  2. David Ortiz

    David Ortiz Save the Clock Tower!! DBSTalk Club

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    The sat at 110 has three transponders. It sounds like you're pointed there instead of 101.
     
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  3. HoTat2

    HoTat2 Hall Of Fame

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    Yep, its a common mistake;

    Need to swing the dish azimuth east somewhat.
     
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  4. plmahlik

    plmahlik New Member

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    Jun 22, 2009
    We have the signal strength setup page for satellite 101 up on the TV. I wouldn't think it would show the transponders from 110 on that page. The transponders that we get on the setup page for 101 are 28, 30 and 32. The 3 transponders for 110 are 8, 10 and 13. Am I missing something?
     
  5. David Ortiz

    David Ortiz Save the Clock Tower!! DBSTalk Club

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    8, 10, and 12, are really 28, 30, and 32 remapped so they can share coax with the 119 transponders.
     
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  6. plmahlik

    plmahlik New Member

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    Jun 22, 2009
    Success, thanks a lot for the advise of moving the dish a little east. It worked. I couldn't figure out why we were getting 3 transponders in the 80s and the rest at zero. Now I know thanks to you. :righton:
     
  7. HoTat2

    HoTat2 Hall Of Fame

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    For those interested;

    Tech. specific: the 110 LNBF receives transponders 32, 30, and 28 and hetrodyne converts them in a mixer with a 11.542 GHz local oscillator injection down to channels 8, 10, and 12 in the 950-1450 MHz down "block." These are then diplexed together with transponders 22, 24, 26, 28, 30, and 32 from 119 and the 103 "even" transponders (for Slimlines), on the same 103 (for Slimlines)/110/119 coax line.

    Hope I didn't bore folks ... :)
     
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  8. Mark40930

    Mark40930 Mentor

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    Las Vegas, NV
    Not at all...an interesting tech tidbit...thanks for the info.
     
  9. texasbrit

    texasbrit DIRECTV A-Team

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    Aug 9, 2006
    Just to add to this. When you look at the 101 signal screen you don't actually see the 101 satellite signals. What you see is "the signals that the dish sends when I tell it to look for 101". If the dish happens to be aligned on 110 instead of 101, that's what you will see. And you will see the "real" transponder numbers, 28/30/32 because of course since the system thinks it is looking at 101 the conversion described by HoTat2 won't have happened.

    FYI aligning on 110 instead of 101 is a very common mistake. The older 3lnb dishes used to be aligned on 110, FY, but the 18in round and the slimlines all align on 101.
     
  10. peds48

    peds48 DIRECTV A-Team DBSTalk Club

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    For those interested;

    Tech. specific: the 110 LNBF receives transponders 32, 30, and 28 and hetrodyne converts them in a mixer with a 11.542 GHz local oscillator injection down to channels 8, 10, and 12 in the 950-1450 MHz down "block." These are then diplexed together with transponders 22, 24, 26, 28, 30, and 32 from 119 and the 103 "even" transponders (for Slimlines), on the same 103 (for Slimlines)/110/119 coax line.

    Hope I didn't bore folks ... :)


    and because of this, DirecTV receivers have no idea that the 110 even exits.....lol


    Sent from my iPad using DBSTalk mobile app
     

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