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SWM LNB to SWM-16

Discussion in 'DIRECTV General Discussion' started by haggis444, Nov 27, 2012.

  1. haggis444

    haggis444 Legend

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    I am going to have more than 8 tuners after my basement is finished so I am preparing to move from a SWM LNB to a SWM-16 setup. My plan is attached will it work?

    A few questions:

    1. As long as I don't exceed 8 tuners/ 8 port splitter I am OK?
    2. Could I add a C31 to that top splitter or does it count as a tuner making it 9?
    3. Could I have any combination of tuners spread across the bottom 8 port and 4 port splitters (as long as it is not more than 8)?
    4. What port on the SWM-16 does the Cinema Connection Kit go into?
    5. Does my dish pointing (which is near perfect) with the SWM LNB need to change when I put in the 4 port SL5 LNB?

    Obviously my whole issue is where the 4 port splitter is I can only get one wire to that location. I know I could use a 2 port but I already own the 4 port one.

    Thanks in advance.
     

    Attached Files:

  2. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    The first problem I see is the 4-way cascaded off an 8-way.

    A few questions:

    1. As long as I don't exceed 8 tuners/ 8 port splitter I am OK?
    2. Could I add a C31 to that top splitter or does it count as a tuner making it 9?
    3. Could I have any combination of tuners spread across the bottom 8 port and 4 port splitters (as long as it is not more than 8)?
    4. What port on the SWM-16 does the Cinema Connection Kit go into?
    5. Does my dish pointing (which is near perfect) with the SWM LNB need to change when I put in the 4 port SL5 LNB?
    1) sure as long as you don't then add another 4-way splitter.
    2) the C31 is tunerless so can connect to any port.
    3) again a 8-way going to a 4-way is too much loss.
    4) any open port for the CCK, since it too doesn't have a tuner.
    5) I've swapped LNBs without issues, but if you're heavy handed you might knock it out.
     
  3. Rickt1962

    Rickt1962 Legend

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    I never understood why D can have a LNB send 8 down one cable from the dish ! But cant split that into more. That you have to run 4 freakin wires back if you want more then 8 :(
     
  4. haggis444

    haggis444 Legend

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    Thanks VOS. So should I just buy a 2-way to do this? Otherwise how can I get two remote devices off one cable?
     
  5. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    it has to do with the spectrum allocation.
    This is the same as trying to add more TV channels in the channel 7 - 13 range of VHF-hi band.
     
  6. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    "Looks like" changing the 8-way to a 4-way and then adding/using a 2-way would work best. The combined loss of the 4 + 2 = the 8-way.
     
  7. haggis444

    haggis444 Legend

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    Jan 20, 2004
    Got it thanks a bunch. And I can put a 4 way up top as well since I only have three cables. I was thinking tuners used=splitter ports, now I know that's not the case.

    And totally spaced out, forgot the Cinema Connection Kit goes into a splitter, not the SWM-16.
     

    Attached Files:

  8. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    That looks very close to what I have.
     
  9. jimmie57

    jimmie57 Hall Of Fame

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    OK, that confuses me, nothing new.
    Why wouldn't the C31s be on the leg with the HR34 ?
    and the 2 HR24s and the one H24 be on the other leg ?

    Just curious.
    Thanks
     
  10. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Because it/they don't need to be. It/they just needs to be part of the coax networking.
     
  11. HoTat2

    HoTat2 Hall Of Fame

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    I still wonder if that's really the case though?

    As its been debated in the past on this board whether DIRECTV engineering's selection of 100+ MHz for the SWiM carriers separation was the minimum practical for such a single wire system design.

    Might a separation 75 MHz or perhaps a little less sufficed to allow for more carriers and thus greater than 8 tuners to be supported per cable run?
     
  12. Stuart Sweet

    Stuart Sweet The Shadow Knows!

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    Without indulging in that discussion, any change in the SWM channels would have to be accompanied by new hardware from end to end, I would think. I don't think a change to the SWM firmware would do it and I would think the receivers would need to change to support it.
     
  13. RD in Fla

    RD in Fla Icon

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    Did exactly what you are about to do last week. Replaced a SWM LNB with a SWM 16. Was worried about the dish too, but my signals all stayed in the 90s. I was very careful when replacing the LNB. Installed an HR34 and all is good. Good luck.
     
  14. Rickt1962

    Rickt1962 Legend

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    Does Dish have 4 wires from the dish ?
     
  15. Rickt1962

    Rickt1962 Legend

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    Question I have an old Slim 5 lnb AU9 with 4 out puts with out the S can that be used with the new SWM so you can get more then 8 ?
     
  16. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I left dish about 10 years ago and haven't looked back so :shrug:
     
  17. HoTat2

    HoTat2 Hall Of Fame

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    No, their current 1000.x dish for HD service can have up to three wires. But Dish is different as they went with a single wire solution long before DIRECTV's SWiM using a conventional frequency stacking approach.

    The problem is frequency stacking really hogs bandwidth in 500 MHz chunks so each cable run from the Dish antenna can only support up to two tuners. And to use that duel tuner capacity on a line they must both be on the same box (i.e. a DVR)

    Yes, its sometimes called a "legacy LNB" and can be used to feed a SWiM-16 or even a SWiM-32 outboard module if more than 8 tuners are needed.
     

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