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Best way to add Genie to multi HR system

Discussion in 'DIRECTV Installation/MDU Discussion' started by dddeeds, May 22, 2013.

  1. peds48

    peds48 Genius. DBSTalk Club

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    FYI, SWM16s do run very "warm". Glad all is well. Thanks for the update.
     
  2. slice1900

    slice1900 Well-Known Member

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    If you have your SWM-16 mounted against a wall, put it on some standoffs to allow airflow to the back and it should run a bit cooler. I used compression connectors for standoffs for mine (also helps with cable routing since you can run cable underneath it if necessary) It probably doesn't make any difference, but it can't hurt.
     
  3. dddeeds

    dddeeds Cool Member

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    Sorry for the confusion but the SWiM itself was not that hot (It has been hanging from one screw at the bottom of the floor joist between floors and as it dangles there above the ceiling tile, it has always had good air flow all around it). I was complaining that the old 21V Black Power Inserter brick (left over from the old Zinwell WB16) that was used previously to power the SWiM16 was the hot item. The new 29V gray power inserter they put in today is not nearly as warm as the old power inserter and I assume it was specifically designed for the SWiM.
     
  4. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Let's look at what's going on:
    The DECA signal starts at about 0 dBm, and the SAT tuner chip is rated at -20 dBm, so even though the DECA is out of band, it may still cause the SAT tuner problems.
    Starting with the H/HR24, an internal DECA was added. There isn't a BSF, but a diplexer which is doing the same blocking of the DECA signal to the SAT tuner.
    An HR20 should either have a DECA installed or a BSF if no DECA is used when connected to coax that has the networking active.
     
  5. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    You were using the wrong PI for the -16.
     
  6. slice1900

    slice1900 Well-Known Member

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    Does it actually damage the receiver, or just cause problems receiving the satellite signal? If you didn't use a BSF where you needed to, is there a risk your receiver becomes a paperweight?
     
  7. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    There are many factors, of which the loss between the transmitting DECA and the SAT tuner input may be the largest.

    "I'd say" it would be a rare case that the receiver becomes a paperweight.
    [customers can do the dumbest things, so it is "plausible" that you might smoke the tuner chip with 20 dB more than it's rated for]

    What is noticeable is the TV will have distortion from the tuner chip being "swamped".
     
  8. dddeeds

    dddeeds Cool Member

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    Sep 16, 2007
    I just have home Ethernet plugged into all my boxes including the new HR-34. Do I need the BSF on my HR-20? Does the Genie always or automatically put out DECA as a bridge? Is there a way to make the Genie not act like a bridge and put out deca? If I need the BSF will DirecTV customer service send them out to me free or will I need to buy them from Solid Signal etc.?

    Sent from my SAMSUNG-SGH-I717 using DBSTalk mobile app
     
  9. peds48

    peds48 Genius. DBSTalk Club

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    Yes, the HR20 needs a BSF. DirecTV will send you one free of charge.
     

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