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Connecting DECA to the HR20-100

Discussion in 'DIRECTV Connected Home' started by veryoldschool, May 15, 2010.

  1. May 15, 2010 #1 of 119
    veryoldschool

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    All receiver but the HR20-100, have the DECA connected to SAT #1 and the network jack.
    The HR20-100 must be connected one of these ways:
    [​IMG]

    [​IMG]
     
  2. May 15, 2010 #2 of 119
    ICM2000

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    Great drawings. Any advantage to either installation option?
     
  3. May 15, 2010 #3 of 119
    veryoldschool

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    One doesn't need the bandstop filter. :lol:

    Signal/RF wise, they should be the same.
     
  4. May 15, 2010 #4 of 119
    ICM2000

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    Thanks!
     
  5. May 15, 2010 #5 of 119
    TBlazer07

    TBlazer07 Grumpy Grampy

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    Curious ..... If it can be done as in your option 1 (no BS method :) ) why would they even bother with option 2 (BS method :) )?
     
  6. May 15, 2010 #6 of 119
    veryoldschool

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    The DECA signal can be as high as 0 dBm, which isn't what a SAT tuner wants to see while it's looking at SAT levels as low as -54 dBm.

    The HR20-100 has been a bit of a problem child. DirecTV couldn't get the DC voltage out the SAT 1 to power the DECA, like they do with all the other receivers.

    The work-a-round was to use the DC from SAT 2 to power the DECA.
    The splitter was first used to simply "tap in" the DC to the coax from SAT 1 to power the DECA. This configuration has the DECA block the signal from the SAT tuner and still pass the SAT signal.
    In some of the test installs they found pixelation with this, so they came out with "plan B" and moved the splitter before the DECA and added the bandstop filter.
    Why this would make any difference isn't clear, since signal wise not much has changed.

    "The wildcard" that may not be known yet is using the SAT #2 which causes the SAT signal to come in there.
    "IF" the internal splitter in the receiver is still passing the SAT signal through the SAT#2 port, "then" the receiver could be the real problem since it can't have two signals combining.
    I'm sure not all HR20-100s have this problem, but this is also the first time both SAT inputs are connected to a SWiM, so this might be why it only now would show up.

    Those that are having issues with 771s, might want to disconnect the SAT #2 coax, leaving the rest in place and see if the problem goes away.
    There isn't any other way to block/stop the SAT signal from entering through the SAT #2 input.
    DECAs & bandstop filters will keep the DECA signal out, leaving only the SAT signal as being the problem if it's getting in both inputs and combines internally.
     
  7. May 15, 2010 #7 of 119
    TBlazer07

    TBlazer07 Grumpy Grampy

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    So is what you are saying (WRT HR20-100):

    "Plan A" (top) MIGHT not work.
    It's possible neither plan A or B will work depending on the specific box.
    And it's also possible that hooking it up normally (remove sat 2) still might work?

    :confused:

    Since I have 3 -100's (and a -700) I guess I'm glad I stuck with ethernet for now.
     
  8. May 15, 2010 #8 of 119
    veryoldschool

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    Both "A & B" should work. If either doesn't work, then first thing I'd check is removing the SAT #2 connection for troubleshooting.
     
  9. May 15, 2010 #9 of 119
    Aztec Pilot

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    yea, I have three problem childs as well! The BS filters are only $3.99, though. I am gonna try drawing one and see if that works for me. Thanks for drawing it out. I was really unclear on how to hook up those-100's. My SWM 16 should be here this week.
     
  10. May 16, 2010 #10 of 119
    veryoldschool

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    What I'd do if the wife had all her recordings on a HR20-100 and I didn't want to sleep on the couch.


    1. Try plan A with the splitter connected to the SAT inputs & then the DECA.
    2. Next would be plan B moving the DECA to SAT #2 and then the splitter, with the bandstop filter on SAT #1.
    3. Plan C would be to disconnect the DECA from SAT #2 from the plan B setup and connect a PI to the DECA. This would eliminate any problem of the SAT signal being feed into the 2 SAT inputs. I'd use one of these: http://www.solidsignal.com/pview.as...Supply-(PS18DER0)&c=Satellite Components&sku=
    If done of these worked, then a receiver swap and the couch seems to be all that's left. :(
     
  11. May 16, 2010 #11 of 119
    jdspencer

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    Can me confused. :confused: What is so different with the HR20-100 that it requires both sat inputs be connected when using the SWM/DECA installation? A straight SWM is only connected to sat 1.
     
  12. May 16, 2010 #12 of 119
    veryoldschool

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    As I posted ^^, all receivers but the HR20-100 power the DECA through the SAT #1 port.
    The HR20-100 doesn't have DC voltage/power on the SAT #1, when in SWM mode. DirecTV managed to get SAT #2 to have the voltage, so this is why is needs to be used to power the DECA.
     
  13. May 16, 2010 #13 of 119
    RobertE

    RobertE DIRECTV A-Team

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    FWIW, plan B is the current and the only supported setup by DirecTv.
     
  14. May 16, 2010 #14 of 119
    jdspencer

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    Thanks. I glossed over that salient point about power requirements to the DECA module.

    If I decide to go with DECA, this might be a good reason to swap out the HR20-100 for the HR24. :)
     
  15. May 16, 2010 #15 of 119
    veryoldschool

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    since A & B are basically the same function, if B works, go for it. There isn't any reason to not follow the supported/preferred method.

    Some have had problems with B, but not A.
    Anybody with problems with both A & B, might want to try C.
    Even you, Robert, if you have problems, might want to try it, or at least pull the SAT #2 coax and see if the receiver gets a good SAT signal/picture. Whether you follow plan C or swap the receiver, of course would be at your discretion.
    Finding out the source of this problem would help everyone involved.
     
  16. May 16, 2010 #16 of 119
    veryoldschool

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    "With my luck", if I was counting on this to leverage a 24 swap, I'd have zero issues with the -100. ;)
     
  17. May 16, 2010 #17 of 119
    jdspencer

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    Leverage isn't a real concern. I'd just like to reduce the amount of clutter behind the DVR in the equipment cabinet.
    See my related question here.
    http://www.dbstalk.com/showthread.php?p=2456637#post2456637
     
  18. May 16, 2010 #18 of 119
    veryoldschool

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    I don't see why you couldn't move them a bit farther away from the receiver.
    The ethernet cable shouldn't be the issue, other than supplying your own. The coax jumpers off SAT 1 & 2 could simply be longer, or powering the DECA with a PI and use only one coax to SAT #1.
     
  19. May 16, 2010 #19 of 119
    texasmoose

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    Just had a sub-contractor of MASTEC do an install(it was his 1st) & it's NOT yet working. Here's a pic of the splitter he used & the layout of what he had done.[​IMG]

    [​IMG]

    All lights on deca module are GREEN

    I activated my MRV online @ our D* account. The Beta is gone on each of my set-up screens. Under Status it says no Networked DVRs found.
     
  20. May 16, 2010 #20 of 119
    veryoldschool

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    While that isn't pretty, the way it's connected should work. The splitter being in front of the DECA and having the bandstop filter, should be a non issue.
    What isn't working?
    The DECA networking or the SAT signals?
    If SAT signals, try removing the SAT #2 coax [which will stop the DECA from working] and then see if the SAT signals work.
     

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