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Can I use TWO power inserters on a SWM / DECA SYSTEM ??????

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by jksellman, Jan 21, 2011.

  1. jksellman

    jksellman Legend

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    Mar 22, 2007
    I Have two HDR-20's on a SWM / DECA system.
    Due to long runs and other logitical issues, I have re-located the power inserter from the distribution point (where the cable from the dish splits into the runs for the different rooms) to one of the "TV" rooms. I have an extra power inserter in my possession and I was wondering if it would work if I inserted it in the original location ALONG with the second power inserter in the tv room?
     
  2. Doug Brott

    Doug Brott Lifetime Achiever DBSTalk Club

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    DO NOT USE 2 POWER INSERTERS for SWiM .. PERIOD!
     
  3. Doug Brott

    Doug Brott Lifetime Achiever DBSTalk Club

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    Now .. you may have to have a power 1 power inserter for the SWiM and a second power inserter for the DECA.

    One power inserter sends power back towards the dish .. The second sends power to a DECA module for Internet connectivity. If you are trying to do something like that, then you need to describe your situation a bit more.
     
  4. matt

    matt New Member

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    Unless you are using non-directv approved splitters, connecting another PI on a different branch of a splitter wouldn't do anything since only one port passes power.

    Running it inline between the first splitter and the dish would probably fry it, I doubt the IRD port on the PI can handle that high of a voltage and current in, and I would hope, since it is white, that it is DC blocked like the splitter ports are anyway.
     
  5. jksellman

    jksellman Legend

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    I moved the power inserter to a TV room so that it could be on a power outlet that is part of a generator back up system (We have a lot of power outages where I live). The room is about 70 feet (of coax) from the distribution point. It works out ok, but sometimes certain channels (Like 202 /CNN) fail to connect the first time I attempt to tune, requiring me to go to a diffenet channel and back to the original to get it to tune in. This didn't occur with the power inserter in it's original location, so I assume it is a result of the added distance. I know I don't want to put "Power to power" in the system for the obvious reasons....I am trying to figure out a way to have the system work on the generator when there are outages, and I may just live with it the way I described. I don't have a generator powered outlet near the distribution point...I wish I did as that would probably be the best way to solve the issue.
     
  6. matt

    matt New Member

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    70 feet shouldn't be an issue. My first thought is maybe the cable is copper clad steel and cant pass the DC power very well, but still even 70 feet should be ok from what I have been told on here.
     
  7. RobertE

    RobertE New Member

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    If you have a multimeter handy, you can try a quick test. Measure the output of the PI, should be 21.x, then go check at the LNB (or as close as you can get if it's up on your roof out of reach). That will tell you how much voltage drop you have. I can't recall what the cutoff point is, but when you hit it, it will stop working.

    If you have considerable drop, you can replace your PI with PI29 giving you some extra headroom for voltage drop.
     
  8. jksellman

    jksellman Legend

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    Mar 22, 2007
    I think it's not really broken...so I am not going to fix it. I'll take the safe path for now,
     
  9. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I've got to ask a dumb question:
    When you moved the PI, did you also move the coax it's connected to to the power passing port on the splitter(s)?
     
  10. jksellman

    jksellman Legend

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    Thanks.
     
  11. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Sometimes it's the simple things that bite you in the behind. :lol:

    How far is it from PI to SWiM?
     
  12. jksellman

    jksellman Legend

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    Mar 22, 2007
    And the system is working fine except for the occasional failure to grab CNN
    (202) on the first attempt, a problem that did not exist prior to relocating the PI.
    All in all, a problem I can live with.
     
  13. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Unless there is some copper clad steel coax in this, there shouldn't be any problem. My PI is about 90' away.
    I'd guess you've powered down the SWiM and receivers, and then powered the SWiM, waited a couple of mins and powered each receiver up by now.
     
  14. RobertE

    RobertE New Member

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    What is the voltage reading at the LNB?
     

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