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Unbalanced SWM?

Discussion in 'DIRECTV Installation/MDU Discussion' started by jmf243, Jan 21, 2011.

  1. Richierich

    Richierich Hall Of Fame

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    You don't have to do that but you have to make sure that the number of Tuners is Equal to the Number that the Multiswitch/Splitters can handle.

    I have a SWM 16 with 2 8 Port Splitters and only have 4 DVRs on each one.

    If I have 5 DVRs on one Splitter than I have 10 Tuners and it will only support 8 of those Tuners so somebody gets dropped.
     
  2. Jodean

    Jodean Icon

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    have you tried this???

    maybe we arnt talking about the same splitters here....im pretty sure the ones i used were green label but maybe not.

    we had campers setup on one dish this summer and 2 four ways in a row did not give us 8 tuners, we had to use an 8 way first, then a 4 way

    now that you mention this, im willing to try this with the new 4 way splitters but previously it could not be done
     
  3. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    This isn't to "jump on you", but instead to train you a bit better.
    Splitters merely feed the SWiM channels to all ports. ALL SWiMs are based off EIGHT TUNERS, so there is one guide channel and EIGHT other channels for the tuners. Exceeding EIGHT TUNERS will cause 771 errors when each tuner's requests exceed 8 different ones.
    When you "thought" you had nine tuners on a SWiM, two of them were sharing the same channel from the SWiM. Should one of these requested another channel, you would have found one of the receivers would have 771 error.
    You just can't squeeze more out of a SWiM than the three chips can output.
     
  4. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    When you start to mix & match them, keep in mind that the losses of the splitter and coax all need to be realized so keep them within:
    [​IMG]

    So there is still enough power for the tuner chip to work.
     
  5. Richierich

    Richierich Hall Of Fame

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    Or you didn't have all 9 Channels used which would make it seem to work until it got maxed out with trying 9 channels resulting in a 711 Error Message.
     
  6. Jodean

    Jodean Icon

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    ok, i guess im wrong then

    I have NO training on swm, i have done all this by trial and error, started installing only a year ago. Im the top techician in the area. All ONO guys are completely clueless around here and call me when they have problems.

    I had no one to ask questions to, i have to figure out all things on my own here. I installed the first swm 16 around here, werent sure what ports were what. Called all directv so called gurus and no one could produce a diagram or know how of what to do with the swm 16, it had just come out. ONO called me the next day after i had mine setup to ask how i did it.

    So im not to sure if any directv classes would have done me any good. If the corp guys that took the class ask me for help.....whats that tell ya?

    Maybe the stuff i tried this summer just didnt work, or we had bad equipment, all i know is when i installed the 8 way it all worked.

    I do know i had 9 tuners active, maybe a couple were on the same channel or something, guess that makes sense now.
     
  7. Richierich

    Richierich Hall Of Fame

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    Well, the Good News is you can learn an awful lot here at DBSTALK.COM by listening to veryoldschool and others as I have learned so much from them that saved me alot of anquish and pain so feel free to participate in our Forum and Learn from others who are ahead of you and me on the Path!!! :)
     
  8. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I completely understand.
    Ask me any questions and I'll do my best to "tell you the truth", since this is "My thing" and I've been in the field test group since '07.
    PM me if you'd rather not do this on the forum.
     
  9. Jodean

    Jodean Icon

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    WAIT!!! hold on......

    This is going contrary to splitter have nothing to do with swm tuners.....

    a swm 16 can handle 16 tuners. If you say you cant put all on one 8 way, then now theres another myth going on here......

    Can someone explain this one.....

    This one is funny as this will prove even very old school wrong...LOL

    sorry couldnt resist that one.....
     
  10. dsw2112

    dsw2112 Always Searching

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    Nothing wrong with that, this is a good place to learn. Sorry to "jump" on you, but some of us tend to frown upon the dissemination of false information. It's always better to ask; some of the tips/tricks around here will dramatically reduce your callbacks, and can put some extra $ in your pocket :)
     
  11. dsw2112

    dsw2112 Always Searching

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    Actually it doesn't prove VOS wrong. A SWM16 is 2 SWM8's combined into one case. There are two ports on a SWM16 and each lead to one of the internal SWM8's. A single SWM8 cannot provide more than 8 SWM tuners which is why two separate splitters are necessary on the SWM16 (one on each port) to provide all 16 tuners.

    As an FYI the two SWM16 SWM ports are bridged by a bandpass filter to allow MRV between each.
     
  12. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    A SWiM-16 is based on 2 SWM8, so it has two output and each output can't have more than 8 tuners.
    What the SWiM-16 also has is a crossover circuit for the DECA signal to pass between the 2 SWiM "blocks [of eight].
     
  13. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    beat me by that " " much. :lol:
     
  14. Jodean

    Jodean Icon

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    ya that was a mess, we had 4 dvrs all sharing into the swm16 from the 8 apartments.....found out what a band stop does.....
     
  15. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    If/when you run across a SWiM-32, there are NO DECA connections between the SWiM "blocks".
     
  16. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Wonder if we should tell him about the SWM screen and what it shows? :lol:
     
  17. Richierich

    Richierich Hall Of Fame

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    You Ain't Gonna Prove or Find VeryOldSchool Wrong when it comes to this Subject so just buckle your seat belt and LEARN FROM THE MASTER!!! :)
     
  18. dsw2112

    dsw2112 Always Searching

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  19. Richierich

    Richierich Hall Of Fame

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    That would be Nice and I'm sure he would be most Appreciative and you would build Good Karma!!! :)
     
  20. matt

    matt New Member

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